Tivic Health Systems, Inc.

Notes to Unaudited Condensed Financial Statements

(amounts are as indicated)

1. Formation and Business of the Company

Tivic Health Systems, Inc. (the “Company”) was incorporated in the state of California on September 22, 2016 for the purpose of developing and commercializing non-invasive bioelectronic medicine. In June 2021, the Company was reincorporated as a Delaware corporation. The Company’s first commercial product is a handheld design that interfaces non-invasively with the trigeminal, sympathetic, and other facial and cranial nerve structures, currently marketed with FDA approval as ClearUP Sinus Pain Relief, for the treatment of sinus pain and congestion. The Company is developing a research-stage platform directed to vagus nerve stimulation, which is currently undergoing clinical evaluation and optimization. In February 2025, the Company acquired a worldwide exclusive license from Statera Biopharma, Inc. (“Statera”) to the late-stage TLR5 agonist Entolimod™ for the treatment of Acute Radiation Syndrome (“ARS”). In addition, the Company acquired an exclusive option to license five additional indications and clinical use cases for Entolimod and its optimized derivative, Entolasta. In March 2025, the Company exercised its option to license Entolimod for the treatment of neutropenia. With the introduction into the biopharma market in early 2025 through the licenses acquired from Statera, the Company is a diversified immunotherapeutics company harnessing the power of the immune and autonomic nervous systems to fight disease and restore health. The Company is headquartered in Fremont, California.

2. Summary of Significant Accounting Policies

Basis of Presentation

The accompanying condensed balance sheet as of December 31, 2024, which has been derived from audited financial statements, and the unaudited interim condensed financial statements as of June 30, 2025, and for the three and six months ended June 30, 2025 and June 30, 2024, have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information. Certain information and note disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to those rules and regulations. In the opinion of management, all accounting entries and adjustments (including normal, recurring adjustments) considered necessary for a fair presentation of the financial position and the results of operations for the interim periods have been made. Operating results for the three and six months ended June 30, 2025 are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2025.

Going Concern Uncertainty

During the six months ended June 30, 2025 and 2024, the Company incurred a net loss of$3.4 million and$2.7 million, respectively. At June 30, 2025, the Company had an accumulated deficit of$47.0 million. Cash and cash equivalents at June 30, 2025 were$1.2 million. During the six month periods ended June 30, 2025 and 2024, the Company had negative cash flows from operations of$2.7 million and$3.0 million, respectively. The aforementioned factors raise substantial doubt about the Company’s ability to continue as a going concern within one year from the issuance date of the financial statements. The accompanying financial statements have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. The financial statements do not include any adjustments relating to the recoverability and classification of asset amounts or the classification of liabilities that might be necessary should the Company be unable to continue as a going concern within one year after the date the financial statements are issued.

Future capital requirements will depend upon many factors, including, without limitation, progress with developing, manufacturing and marketing our technologies and product candidates; the time and costs involved in obtaining regulatory approvals for our product candidates; the time and costs involved in preparing, filing, prosecuting, maintaining and enforcing patent claims and other proprietary rights; our ability to execute our strategy to expand our business, including through the closing of potential acquisitions or licenses and integrating new business into our own; our ability to establish collaborative arrangements; completion of any acquisitions or other strategic transactions; marketing activities and competing technological and market developments, including regulatory changes and overall economic conditions in our target markets. Our ability to generate revenue and achieve profitability requires us to successfully market and secure purchase orders for our products and services through new and existing sales channels, and from customers currently identified in our pipeline as well as new customers. We also will be required to efficiently manufacture and deliver on those purchase orders. These activities, including our planned research and development efforts, may require significant uses of working capital. There can be no assurance that we will generate revenue and cash as expected in our current business plan.

The Company recognizes it will need to raise additional capital to continue research and development and to fund its planned operations, including to execute on its strategy to expand its business, complete pre-clinical and clinical trials and, if regulatory approval is obtained, commercialize any future products. The Company may seek additional funds through equity or debt offerings and/or borrowings under notes payable, lines of credit or other sources. The Company does not know whether additional financing will be available on commercially acceptable terms, or at all, when needed. If adequate funds are not available or are not available on commercially acceptable terms, the Company’s ability to fund its operations, support the growth of its business or otherwise respond to competitive pressures could be significantly delayed or limited, which could materially adversely affect its business, financial conditions, or results of operations.

Reverse Stock Split

Effective March 7, 2025, the Company implemented a reverse stock split of its issued and outstanding shares of common stock, par value $0.0001 per share, at a ratio of 1-for-17. As a result of the reverse stock split, the total number of shares of common stock held by each stockholder of the Company were converted automatically into the number of shares of common stock equal to the number of issued and outstanding shares of common stock held by each such stockholder immediately prior to the reverse stock split divided by 17. The Company issuedone whole share of the post reverse stock split common stock to any stockholder who otherwise would have been entitled to receive a fractional share as a result of the reverse stock split (for a total of 76 shares). As a result, no fractional shares were issued in connection with the reverse stock split andno cash or other consideration was paid in connection with any fractional shares that would otherwise have resulted from the reverse stock split. Also, all options, warrants, preferred stock and other convertible securities of the Company outstanding immediately prior to the reverse stock split were adjusted by dividing the number of shares of common stock into which such options, warrants, preferred stock and other convertible securities were exercisable or convertible by 17 and multiplying the exercise or conversion price thereof by 17, all in accordance with the terms of the plans, agreements or arrangements governing such options, warrants, preferred stock and other convertible securities and subject to rounding pursuant to such terms. There was no change to the par value or authorized shares, of either the Company’s common stock or preferred stock, as a result of the reverse stock split. All share and per share amounts for the Company’s common stock, as well as the number of shares of common stock issuable upon conversion of outstanding preferred stock and upon exercise of options and warrants outstanding, and conversion/exercise prices thereof, from dates prior to completion of the reverse stock split that are included in this Quarterly Report, including the financial statements and footnotes thereto included herein, have been retroactively restated to give effect to the reverse stock split.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of expenses during the reporting period. Actual results could differ materially from those estimates. The Company evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors and adjusts those estimates and assumptions when facts and circumstances dictate.

Cash and Cash Equivalents

The Company considers all highly liquid investments with original maturities of three months or less at date of purchase to be cash equivalents. As of June 30, 2025 and December 31, 2024, cash and cash equivalents totaled$1.2 million and$2.0 million, respectively.

Accounts Receivable

Trade accounts receivable are recorded at the invoiced amount, net of allowances for credit losses. The allowance for credit losses is based on our assessment of the collectability of accounts. Management regularly reviews the adequacy of the allowance for credit losses by considering the age of each outstanding invoice, each customer’s expected ability to pay, and the collection history with each customer, when applicable, to determine whether a specific allowance is appropriate. Accounts receivable deemed uncollectible are charged against the allowance for credit losses when identified. As of each June 30, 2025 and December 31, 2024, the allowance for credit losses waszero.

Inventory

Inventories are stated at the lower of cost or net realizable value, with cost determined on a first-in, first-out basis. Inventories are reviewed periodically to identify slow-moving inventory based on anticipated sales activity. As of each June 30, 2025 and December 31, 2024, the reserve for obsolescence was$338 thousand.

Deferred Offering Costs

The Company complies with the requirements of Financial Accounting Standards Board (“FASB”) Accounting Standard Codification (“ASC”) 340-10-S99-1. The Company capitalizes incremental legal, professional, accounting, and other third-party fees that are directly associated with an equity or debt offering. As of June 30, 2025, the balance of deferred offering costs was $301 thousand and consisted of legal and accounting fees paid in connection with the filing of Form 1-A in August 2024, the Equity Line of Credit and the Tranched Financing, which are discussed further in Notes 11 and 10, respectively, below. If the Company consummates an equity offering, the deferred financing costs will be allocated to additional paid-in capital. If the Company consummates a debt offering, the deferred financing costs will be recorded as a discount to the debt. The costs relating to the Equity Line of Credit and the Tranched Financing are reclassified to additional paid in capital on a pro-rata basis when the Company completes offerings.

Business Combination

The Company follows the guidance in ASC 805, Business Combinations, for determining the appropriate accounting treatment for asset acquisitions. ASU No. 2017-01, Clarifying the Definition of a Business, provides an initial fair value screen to determine if substantially all of the fair value of the assets acquired is concentrated in a single asset or group of similar assets. If the initial screening test is not met, the set is considered a business based on whether there are inputs and substantive processes in place. The accounting treatment is derived based on the results of this analysis and conclusion on an acquisition’s classification of a business combination or an asset acquisition.

If the acquisition is deemed to be a business, the purchase method of accounting is applied. Identifiable assets acquired and liabilities assumed at the acquisition date are recorded at fair value. If the transaction is deemed to be an asset acquisition, the cost accumulation and allocation model is used whereby the assets and liabilities are recorded based on the purchase price and allocated to the individual assets and liabilities based on relative fair values.

Property and Equipment

Property and equipment are recorded at cost net of accumulated depreciation. Depreciation is computed on a straight-line method over the estimated useful lives of the assets, which isthree tofour years. Upon retirement or sale of assets, the cost and related accumulated depreciation are removed from the balance sheet and the resulting gain or loss is reflected in operations. Repairs and maintenance costs that do not improve or extend the lives of the respective assets are charged to operations as incurred.

Impairment of Long-Lived Assets

The Company evaluates its long-lived assets, including property and equipment, for impairment whenever events or changes in circumstances indicate that the carrying amount of these assets may not be recoverable. Recoverability of these assets is measured by comparison of the carrying amount of each asset to the future undiscounted cash flows the asset is expected to generate over its remaining life. When indications of impairment are present and the estimated undiscounted future cash flows from the use of these assets is less than the assets’ carrying value, the related assets will be written down to fair value. There wereno impairments of the Company’s long-lived assets for the periods presented.

Commitments and Contingencies

Liabilities for loss contingencies arising from claims, assessments, litigation, fines, and penalties and other sources are recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated. Legal costs incurred in connection with loss contingencies are expensed as incurred.

Revenue Recognition

The Company recognizes revenue from product sales in accordance with FASB ASC Topic 606, Revenue from Contracts with Customers (“Topic 606”). The standard applies to all contracts with customers, except contracts that are within scope of other standards, such as leases, insurance, collaboration arrangements and financial instruments.

Under Topic 606, an entity recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration that the entity expects to receive in exchange for those goods or services. To determine revenue recognition for arrangements that an entity determines are in within the scope of Topic 606, the entity performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation. The Company only applies the five-step model to contracts when it is probable the entity will collect the consideration it is entitled to in exchange for the goods or services it transfers to the customer. At contract inceptions, once the contract is determined to be within the scope of Topic 606, the Company assesses the goods or services promised within each contract and determines those that are performance obligations and assesses whether each promised good or service is distinct. The Company then recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) the performance obligation is satisfied.

The Company sells its products through direct sales and resellers. Revenue is recognized when control of the promised goods is transferred to the customers or the resellers, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those goods. Revenue associated with products holding rights of return is recognized when the Company concludes there is not a risk of significant revenue reversal in the future periods for the expected consideration in the transaction.

The Company may receive payments at the onset of the contract and before goods have been delivered. In such instances, the Company records a deferred revenue liability. The Company recognizes these contract liabilities as revenue after the revenue criteria are met. As of June 30, 2025 and December 31, 2024, the contract liability related to the Company’s deferred revenues waszero and $2 thousand, respectively, and is included in “Other Accrued Expenses” on the accompanying balance sheets.

The Company relies on third parties to have procedures in place to detect and prevent credit card fraud, as the Company has exposure to losses from fraudulent charges. The Company records the losses related to chargebacks as incurred.

The Company has also elected to exclude from the measurement of the transaction price sales taxes remitted to governmental authorities.

The table below presents revenue by channel for the three and six months ended June 30, 2025 and 2024 (in thousands):

Sales Tax

Sales tax collected from customers and remitted to governmental authorities is accounted for on a net basis and therefore, is excluded from net sales.

Shipping and Handling

Shipping and handling fees paid by customers are recorded in revenue, with the related expenses recorded in cost of sales. Shipping and handling fees paid by customers for each of the three and six month periods ended June 30, 2025 were $1 thousand. There wereno shipping and handling fees paid by customers for the three and six months ended June 30, 2024.

Shipping costs for delivery of product to customers in the three and six months ended June 30, 2025 were $5 thousand and $8 thousand, respectively. Shipping costs for delivery of product to customers in the three and six months ended June 30, 2024 were $6 thousand and $23 thousand, respectively.

Product Warranty

The Company generally offers aone-year limited warranty on its products. The Company also offers for sale a limitedtwo-year warranty. The limited two-year warranty is occasionally provided to customers in connection with promotional sales. The Company estimates the costs associated with the warranty obligation using historical data of warranty claims and costs incurred to satisfy those claims. Estimated warranty costs are expensed to cost of sales.

Returns

The Company estimates a reserve for future product returns based on several factors, including historical returns as a percentage of revenue, an understanding of the reasons for past returns and any other known factors that indicate a return is imminent. Reserves for sales returns are estimated and recorded in the same period as the underlying revenue recognition as a deduction to arrive at net product sales and as a liability classified as “Other Accrued Expenses” on the balance sheet. As of June 30, 2025 and December 31, 2024, the reserve for sales returns was $7 thousand and $10 thousand, respectively.

Research and Development Expenses

Research and development expenses include costs directly attributable to the conduct of research and development programs, including the cost of salaries, payroll taxes, employee benefits, materials, supplies, depreciation on and maintenance of research equipment, the cost of services provided by outside contractors, and the allocable portions of facility costs, such as rent, utilities, insurance, repairs and maintenance, depreciation, and general support services. All costs associated with research and development are expensed as incurred unless there is an alternative future use.

Sales and Marketing Expenses

Sales and marketing expenses are expensed as incurred and consist primarily of personnel costs, merchandising, customer service and targeted online marketing costs, such as display advertising, keyword search campaigns, search engine optimization and social media and offline marketing costs such as television, radio and print advertising. Personnel costs consist of salaries, bonuses, benefits and stock-based compensation expense. Beginning in the second quarter of 2025, sales and marketing expenses also include personnel and consulting expenses incurred to secure customer awareness of Entolimod’s development. Advertising and other promotional costs to market the Company’s products and services amounted to $111 thousand and $131 thousand for the three and six months ended June 30, 2025, respectively. Advertising and other promotional costs to market the Company’s products and services were $71 thousand and $321 thousand for the three and six months ended June 30, 2024, respectively.

Stock-Based Compensation

The Company accounts for stock-based compensation arrangements with employees and non-employee consultants using a fair value method, which requires the recognition of compensation expense for costs related to all stock-based payments, including stock options. The fair value method requires the Company to estimate the fair value of stock-based payment awards to employees and non-employees on the date of grant using an option pricing model.

Stock-based compensation costs are based on the fair value of the underlying option calculated using the Black-Scholes option-pricing model and recognized as expense on a straight-line basis over the requisite service period, which is the vesting period. The Company measures equity-based compensation awards granted to non-employees at fair value as the awards vest and recognizes the resulting value as compensation expense at each financial reporting period.

Determining the appropriate fair value model and related assumptions requires judgment, including estimating stock price volatility, expected dividend yield, expected term, risk-free rate of return, and the estimated fair value of the underlying common stock. Due to the lack of company-specific historical and implied volatility data, the Company has based its estimate of expected volatility on the historical volatility of a group of similar publicly traded companies. The historical volatility is calculated based on a period of time commensurate with the expected term assumption. The group of representative companies have characteristics similar to the Company, including stage of product development and focus on the life science industry. Changes to the group are made on an as needed basis to ensure it remains representative of the Company. The Company uses the simplified method, which is the average of the final vesting tranche date and the contractual term, to calculate the expected term for options granted to employees as it does not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term. The risk-free interest rate is based on a treasury instrument whose term is consistent with the expected term of the stock options. The Company uses an assumed dividend yield ofzero as the Company has never paid dividends and has no current plans to pay any dividends on its common stock. The Company accounts for forfeitures as they occur.

Segment Reporting

Operating segments are identified as components of an enterprise for which separate discrete financial information is available for evaluation by the chief operating decision-maker (“CODM”) in deciding how to allocate resources and assess performance. The Company’s CODM is the Chief Executive Officer, who reviews the Company’s operations and manages its business as asingle operating segment.

Net Loss per Share

Basic earnings (loss) per share is computed using the weighted-average number of shares of common stock outstanding during the period adjusted to add back dividends (declared or cumulative undeclared) applicable to the Series B Preferred Stock. Diluted earnings (loss) per share is computed using the weighted-average number of shares of common stock and the dilutive effect of contingent shares outstanding during the period. Potentially dilutive contingent shares, which primarily consist of stock options issued to employees, directors and consultants, restricted stock units (“RSUs”), warrants issued to third parties, all of which are accounted for as equity instruments, would be excluded from the diluted earnings per share calculation because their effect is anti-dilutive.

Basic and diluted net income (loss) per share attributable to common stockholders is presented in conformity with the two-class method required for participating securities such as our preferred stock. Under the two-class method, basic and diluted net income (loss) per share attributable to common stockholders is computed by dividing the basic and diluted net income (loss) attributable to common stockholders by the basic and diluted weighted-average number of shares of common stock outstanding during the period. Diluted net income per share attributable to common stockholders adjusts basic net income per share for the potentially dilutive impact of stock options, RSUs and warrants.

The treasury stock method is used to calculate the potentially dilutive effect of stock options and RSUs. The if-converted method is used to calculate the potentially dilutive effect of shares of the Series A and B Preferred Stock. In both methods, diluted net income (loss) attributable to common stockholders and diluted weighted-average shares outstanding are adjusted to account for the impact of the assumed issuance of potential shares of common stock that are dilutive, subject to dilution sequencing rules.

At June 30, 2025 and 2024, the Company had options to purchase 12,868 and 3,214 shares of common stock outstanding, respectively,79,415 andzero restricted stock units outstanding, respectively, and warrants to purchase 501,462 and 707,234 shares of common stock, respectively, that are excluded from the calculation of diluted earnings per share as their effect is anti-dilutive.

The following table shows the calculation of basic and diluted earnings per share for the periods that shares of Series A and B Preferred Stock were outstanding.

Concentration of Credit Risk and Other Risks and Uncertainties

Financial instruments that potentially subject the Company to significant concentrations of credit risk consist of cash and cash equivalents and accounts receivable. Cash and cash equivalents include a checking account and a money market account held at a single national financial institution in the United States. At times, such deposits may be in excess of insured limits. Management believes that the financial institution at which the Company holds its deposits is financially sound, and accordingly, minimal credit risk exists with respect to the financial institution. The Company has not experienced any losses on its deposits of cash and cash equivalents. As of June 30, 2025 and December 31, 2024, the Company had cash and cash equivalents balances exceeding FDIC insured limits by $0.7 million and $1.6 million, respectively.

The Company extends credit to customers in the normal course of business and performs credit evaluations of its customers. Concentrations of credit risk with respect to accounts receivable exist to the full extent of amounts presented in the financial statements.

During the first half of 2025, the majority, or 81%, of the Company’s sales were to individual customers. In the first half of 2024, the majority, or 81%, of the Company’s sales were to individual consumers. As of June 30, 2025, the Company hadno customer whose accounts receivable balance totaled 10% or more of the Company’s total accounts receivable compared withone such customer at December 31, 2024 (95%).

For each of the three and six months ended June 30, 2025, the Company hadone customer who individually accounted for 10% or more of the Company’s total revenue (23% and 13%, respectively). For each of the three and six months ended June 30, 2024, the Company hadone customer who individually accounted for 10% or more of the Company’s total revenue (23% and 13%, respectively).

The ongoing conflicts between Russia and Ukraine as well as Israel and Hamas, and certain other macroeconomic factors including tariffs, inflation and rising interest rates, have contributed to economic uncertainty. Additionally, events involving limited liquidity, defaults, non-performance or other adverse developments that affect financial institutions or the financial services industry generally, or concerns or rumors about any events of these kinds or other similar risks, have in the past and may in the future lead to market-wide liquidity problems. Furthermore, it is possible that U.S. policy changes, including planned or proposed budget cuts at the federal government level, could increase market volatility in the coming months. These factors, amongst other things, could result in further economic uncertainty and volatility in the capital markets in the near term, and could negatively affect our operations. We will continue to monitor material impacts on our business strategies and operating results.

Recently Issued Accounting Pronouncements

In November 2024, the FASB issued ASU 2024-03, Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40)-Disaggregation of Income Statement Expenses. The guidance applies to all public business entities and becomes effective for annual periods beginning after December 15, 2026, and interim periods beginning after December 15, 2027. Early adoption is permitted. The guidance requires improved disclosures about expenses, including the types of expenses in commonly presented expense captions (such as cost of sales, SG&A and research and development), which will allow investors to better understand the components of an entity’s expenses. In January 2025, the FASB issued ASU 2025-01 to further clarify the effective date as the first annual reporting period beginning after December 15, 2026, and interim periods within annual reporting periods beginning after December 15, 2027. The Company does not believe that ASU 2024-03 will have a material impact on its financial reporting.

Management does not believe any other recently issued but not yet effective accounting pronouncement, if adopted, would have a material effect on the Company’s present or future consolidated financial statements.

3. Financial Instruments and Fair Value Measurements

The Company’s financial instruments consist of money market funds. The following tables show the Company’s cash equivalents carrying value and fair value at June 30, 2025 and December 31, 2024 (in thousands):

Cash equivalents – Cash equivalents of $1.0 million as of June 30, 2025 and $1.8 million as of December 31, 2024, consisted of money market funds. Money market funds are classified as Level 1 of the fair value hierarchy because they are valued using quoted market prices in active markets.

Certain assets and liabilities are carried at fair value under GAAP. Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs.

There have been no changes to the valuation methodologies utilized by the Company during the six months ended June 30, 2025 compared to the year ended December 31, 2024. The Company evaluates transfers between levels at the end of each reporting period. There wereno transfers of financial instruments between levels during the six months ended June 30, 2025 and the year ended December 31, 2024.

4. Prepaid Expenses (in thousands)

5. Inventory, net (in thousands)

Property and equipment, net (in thousands)

Depreciation expense was $1 thousand and $2 thousandfor the three and six months ended June 30, 2025, respectively. Depreciation expense was $1 thousand and $2 thousandfor the three and six months ended June 30, 2024, respectively.

7. Statera License Agreement

On February 11, 2025, the Company entered into an exclusive license agreement (the “License Agreement”) with Statera, pursuant to which the Company acquired (i) an exclusive worldwide license to the patented Toll-like Receptor 5 (“TLR5”) agonist lead program of Statera known as Entolimod (the “Licensed Molecules”) as it relates to the ARS indication (the “Initial Indication”) and (ii) an exclusive option (the “Exclusive Option”) to acquire the exclusive worldwide license to additional indications, including lymphocyte exhaustion, immunosenescence, neutropenia and/or for use as a vaccine adjuvant (the “Subsequent Indications”) and to the optimized TLR5 agonist follow-on program of Statera known as Entolasta.

Under the terms of the License Agreement, Statera granted the Company an exclusive worldwide license, with the right to grant and authorize sublicenses, under Statera’s patents, trademarks, know-how and other intellectual property, to develop, test, make, have made, use, sell, offer for sale, import and otherwise exploit the product Entolimod as it relates to the Initial Indication during the term of the License Agreement.

As consideration for the License Agreement, the Company agreed to pay Statera a license fee of $1.5 million, consisting of (i) $300 thousand in cash consideration and (ii) $1.2 million in stock consideration, as discussed further in Notes 9 and 10 below. As additional considerationfor the License Agreement, the Company agreed to pay Statera certain royalty payments on net sales for the ARS indication as a single agent, and, if it exercises the Exclusive Option with respect to any Subsequent Indication, net sales for such Subsequent Indications, within certain royalty periods.

The License Agreement further provides the Company with the Exclusive Option to expand the Initial Indications to include the treatment of the Subsequent Indications or to expand the use from a single agent to include uses as vaccine adjuvant, or several or all of them, at any time during the term of the License Agreement, and on one or more occasions, at its discretion. As part of exercise of the Exclusive Option, the license grant would be expanded to include uses of Entolasta, in addition to Entolimod, both for ARS and for the Subsequent Indications for which the Company has exercised its Exclusive Option.

In conjunction with the License Agreement, Statera additionally transferred to the Company the title to approximately fifteen kilograms (15kg) of frozen manufactured Entolimod bulk drug substance and bulk/finished drug product lots and associated quality records associated with their production and applicable verification records (the “Materials”). In connection with this acquisition of ownership of the Materials, the Company will be negotiating a $1 per year lease with an affiliate of Statera for the proper care, storage and handling of the Materials. The Company determined that the fair value associated with the Entolimod lots and associated lease was not material to the transaction.

The License Agreement also includes a buyout provision (the “Buyout”) by which the Company maintains the right to acquire from Statera at any time all right, title and interest in and to all technology licensed or otherwise subject to the Exclusive Option under the License Agreement. Should the Company elect to invoke this buyout right, it must provide Statera with a buyout payment equal to (a) the lesser of (i) the aggregate amount of payments due to Statera for achievement of all milestone events (described below), less the amount of payments paid for the achievement of one or more of such milestone events, and (ii) an amount negotiated in good faith and mutually agreed by the parties in writing as representing the risk adjusted net present value of the aggregate royalties that would have been payable absent such exercise; less (b) the amount of payments paid or payable by the Company to extinguish an existing lien on the licensed technology.

The Company makes certain judgments to determine whether transactions should be accounted for as acquisitions of assets or as business combinations. If it is determined that substantially all of the fair value of gross assets acquired in a transaction is concentrated in a single asset (or a group of similar assets), the transaction is treated as an acquisition of assets. The Company evaluates the inputs, processes, and outputs associated with the acquired set of activities and assets. If the assets in a transaction include an input and a substantive process that together significantly contribute to the ability to create outputs, the transaction is treated as an acquisition of a business. The Company’s assessments concluded that the transactions pursuant to the License Agreement constitute an asset acquisition.

The Company determined the acquisition constituted an acquisition of assets instead of a business combination, as substantially all of the fair value of the gross assets acquired was concentrated in a group of similar identifiable assets, and therefore, the acquisition was not considered a business combination. In transactions accounted for as acquisitions of assets, no goodwill is recorded and contingent consideration, such as payments upon achievement of various developmental, regulatory and commercial milestones, generally is not recognized at the acquisition date. In an asset acquisition, up front payments allocated to in-process research and development (“IPRD”)projects at the acquisition date are expensed unless there is an alternative future use. In addition, product development milestones are expensed upon achievement. As the Company is recording the transaction as an asset acquisition under ASC 805, the contingent payments will be recognized upon achievement and at that time will be expensed to in-process research and development, or capitalized, dependingon the determination if there is alternative future use of the purchase. Transaction costs of approximately $243 thousand associated with the acquisition were capitalized as part of the acquisition.

The License Agreement obligates the Company to develop and commercialize the licensed products, at its own cost and expense, inclusive of licensed products with respect to any Subsequent Indications obtained upon exercise of an Exclusive Option. In the development and commercialization process, the Company is obligated to meet certain milestones, and must provide Statera with certain milestone payments, payable in either the form of cash or Company stock (at the sole discretion of the Company), upon accomplishing each milestone as outlined below.

Upon exercise of an Exclusive Option with respect to one or more Subsequent Indications, the following corresponding applicable milestones and milestone payments (all milestone payments, collectively, the “Milestone Payments”), payable in in either the cash or Company stock (at the sole discretion of the Company), become obligations of the Company as well:

Pursuant to the License Agreement, in the event that the Company exercises its Exclusive Option with respect to one or more Subsequent Indications, the Company may elect, in its sole discretion, to accelerate any of the Milestone Payments in advance of the milestone achievements.

On March 28, 2025, the Company notified Statera of its election to exercise its Exclusive Option to acquire the exclusive worldwide license to the neutropenia indication for Entolimod under the License Agreement (the “Neutropenia Option”) and to accelerate the first milestone payment of $500 thousand related to the neutropenia indication (the “Neutropenia Milestone Payment”), payable by the Company in connection with the filing of an IND and initiation of a Phase 2 clinical study for neutropenia. The Company paid the $500 thousand Neutropenia Milestone Payment paid in Company stock, as discussed further in Notes 9 and 10 below, and was capitalized as licensed technology.

As a result of the Company’s exercise of the Neutropenia Option, the Company is obligated to develop and commercialize the expanded licensed products related to the neutropenia indication, at its own cost and expense, including to meet those milestones discussed above, and is obligated to pay the milestone payments, other than the Neutropenia Option, upon accomplishing each such milestone.

On June 18, 2025, the Company entered into an Amended and Restated Exclusive License Agreement (the “A&R License Agreement”) with Statera, which amended certain terms of the License Agreement to, amongst other things, (i) provide that the payment of royalties pursuant to the A&R License Agreement, if any, may be made by the Company in either cash or securities of the Company, at the discretion of the Company; (ii) increase the approximate amount of the lien held by Avenue Venture Opportunities Fund, L.P. (“Avenue”) to up to $5.6 Million (the “Payoff Amount”); and (iii) provide that, other than the original license fee paid by the Company to Statera in connection with the closing of the license transaction in February 2025 and payment of the Neutropenia Milestone Payment, until such date that the Payoff Amount has been paid in full to Avenue, all subsequent payments due to Statera under the A&R License Agreement shall be paid by the Company as follows:20% of any such payments shall be paid to Statera and 80% of any such payments shall be paid directly to Avenue on behalf of Statera.

8. Commitments and Contingencies

Lease

In June 2024, the Company entered into a short-term rental agreement for office space located in Fremont, California. The Company evaluated the agreement and determined the short-term rental agreement does not meet the criteria for capitalization. Monthly rent payments required are $1 thousand per month and the agreement terminated on December 1, 2024. After expiration of the initial term, the agreement automatically renewed on a month to month basis and continues until terminated by either party upon 30 days’ advance written notice.

Exclusive License Agreement – Statera BioPharma

As discussed above in Note 7, the Company is obligated to make certain payments to Statera pursuant to the A&R License Agreement, upon the achievement of certain commercialization milestones.

Purchase Commitments

The Company has entered into multiple contracts related to the development of Tivic’s ncVNS technology, including a collaboration and research support agreement and a research study to substantiate clinical indications that have potential to be addressed by Tivic’s patent-pending ncVNS system. The contracts require milestone payments to be made upon the successful completion of certain deliverables. As of June 30, 2025, the Company has remaining commitments to pay a total of $86 thousand for milestones not yet achieved. The final milestone is expected to occur in the third quarter, upon which the final payment will be due.

On May 9, 2025, the Company entered into a Statement of Work (the “Scorpius SOW”) with Scorpius BioManufacturing, Inc. (“Scorpius”), pursuant to which Scorpius will serve as the primary U.S. manufacturer for the Company’s late-stage TLR5 agonist, Entolimod, for the treatment of ARS. Pursuant to the Scorpius SOW, Scorpius will provide the following services, among others: cell line verification, legacy process verification, GMP scale-up production, drug product fill and finish, analytical development and qualification, and upstream and downstream optimization of the process. The Scorpius SOW shall be governed by the Terms and Conditions attached thereto, unless and until a Master Services Agreement is executed by and between the parties in connection with the services contemplated by the Scorpius SOW.

Pursuant to the Scorpius SOW, the Company has agreed to pay Scorpius service fees estimated to be approximately $2.4 million, with a total estimated investment by the Company of approximately $4.1 million, inclusive of additional pass-through costs and expenses, including for consumables and external services. The fees and costs will be payable on a milestone-based invoicing schedule tied to the completion of defined project stages and deliverables, as provided in the Scorpius SOW. Pass-through costs for raw materials, consumables, reagents, shipping, and subcontracted services will be managed by Scorpius on behalf of the Company at cost plus a 15% administrative fee. The Company is required to settle invoices within 30 days, with Scorpius reserving the right to impose monthly interest charges of 1% for undisputed amounts unpaid after 30 days. The Company will also be responsible for payment of any taxes, fees, duties or charges imposed by any governmental authority in connection with the services provided by Scorpius under the Scorpius SOW, other than on Scorpius’ net income taxes or franchise taxes. The Company estimates the duration of the Scorpius SOW to be approximatelytwo years, with approximately $3.0 million of costs to be incurred in the next 12 months. As of June 30, 2025, the Company had paid Scorpius a total of $209 thousand in connection with the Scorpius SOW.

Contingencies

From time to time, the Company may have certain contingent liabilities that arise in the ordinary course of its business activities. The Company accrues a liability for such matters when future expenditures are probable and such expenditures can be reasonably estimated. The Company recordedno liabilities for contingent matters as of June 30, 2025.

9. Other Accrued Expenses (in thousands)

10. Preferred Stock

The Company’s board of directors is authorized, without action by its stockholders, to designate and issue up to 10,000,000 shares of preferred stock in one or more series, and to fix the voting rights, designations, powers, preferences, the relative participating, optional or other special rights, if any, and any qualifications, limitations and restrictions thereof, applicable to the shares of any series of preferred stock that they may designate in the future.

As of June 30, 2025, there were 491 shares of the Company’s Series A Non-Voting Convertible Preferred Stock, par value $0.0001 per share (“Series A Preferred Stock”), and 700 shares of the Company’s Series B Non-Voting Convertible Preferred Stock, par value $0.0001 per share (“Series B Preferred Stock”), issued and outstanding. As of December 31, 2024 there were no series of preferred stock designated andno shares of preferred stock issued or outstanding.

Series A Preferred Stock

On February 10, 2025, in connection with the License Agreement, the Company filed a Certificate of Designation of Preferences, Rights and Limitations of the Series A Non-Voting Convertible Preferred Stock (the “Series A Certificate of Designation”) with the Secretary of State of the State of Delaware, pursuant to which 6,000 shares of the Company’s authorized shares of preferred stock were designated as Series A Preferred Stock. A summary of the powers, preferences, rights, qualifications, limitations and restrictions applicable to the Series A Preferred Stock is set forth below.

Ranking- the Series A Preferred Stock ranks on parity with the Company’s common stock and junior to the Company’s Series B Preferred Stock with respect to dividend rights and rights on the distribution of assets on any voluntary or involuntary liquidation, dissolution or winding up of the affairs of the Company.

Dividend Rights - to the extent that dividends are paid to holders of the Company’s common stock, holders of Series A Preferred Stock shall be entitled to participate in such dividends on an as-if-converted-to-common-stock basis, without regard to the Series A Beneficial Ownership Limitation (as defined below).

Voting Rights - except as otherwise provided by the Series ACertificate of Designation or required by law, the Series A Preferred Stock has no voting rights. Provided, however, that so long as any shares of Series A Preferred Stock are outstanding, the Company will not, without the affirmative vote of the holders of a majority of the then-outstanding shares of the Series A Preferred Stock, (i) alter or change adversely the powers, preferences or rights given to the Series A Preferred Stock or alter or amend the Series A Preferred Certificate of Designation, amend or repeal any provision of, or add any provision to, the Company’samended and restated articles of incorporation, as amended (the“Charter”), or amended and restated bylaws (the“Bylaws”), or file any articles of amendment, certificate of designations, preferences, limitations and relative rights of any series of preferred stock, in each case if any such action would adversely alter or change the preferences, rights, privileges or powers of, or restrictions provided for the benefit of the Series A Preferred Stock, regardless of whether any of the foregoing actions shall be by means of amendment to the Charter or by merger, consolidation, recapitalization, reclassification, conversion or otherwise, (ii) issue further shares of Series A Preferred Stock, or (iii) enter into any agreement with respect to any of the foregoing.

Conversion- subject to the Series A Beneficial Ownership Limitation, each share of Series A Preferred Stock is convertible into approximately 588 shares of Company common stock (the“Series A Conversion Ratio”), as follows:

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Automatic Conversion - effective as of 5:00 p.m. Eastern time on the third business day after the date that the Company’s stockholders approve the conversion of the Series A Preferred Stock into shares of common stock in accordance with the listing rules of the Nasdaq Stock Market (“Stockholder Approval”), each share of Series A Preferred Stock then outstanding shall automatically convert into a number of shares of common stock equal to the Series A Conversion Ratio, subject to the Series A Beneficial Ownership Limitation.

The Company received Stockholder Approval at its 2025 Annual Meeting of Stockholders, held on June 30, 2025. As a result, on July 3, 2025,87.5568 shares of Series A Preferred Stock will automatically convert into 51,504 shares of Company common stock.

•

Optional Conversion - subject to the Series A Beneficial Ownership Limitation and the automatic conversion (discussed above), each share of Series A Preferred Stock then outstanding shall be convertible, at any time and from time to time following 5:00 p.m. Eastern time on the third business day after the date that the Stockholder Approval is obtained by the Company, at the option of the holder thereof, into a number of shares of common stock equal to the Series A Conversion Ratio.

Beneficial Ownership Limitation - a holder of Series A Preferred Stock is prohibited from converting shares of Series A Preferred Stock into shares of common stock if, as a result of such conversion, such holder, together with its affiliates, would beneficially own in excess of the applicable beneficial ownership limitation (the“Series A Beneficial Ownership Limitation”). For purposes of the Series A Preferred Stock, the Series A Beneficial Ownership Limitation shall initially be set at 9.9% for each holder and its affiliates and may be adjusted at the discretion of the holder to a percentage between 4.9% and 19.9% (but not to exceed 19.9%) of the number of shares of common stock outstanding immediately after giving effect to the issuance of shares of common stock pursuant to such conversion.

Redemption Rights - shares of Series A Preferred Stock are not redeemable.

Liquidation Rights - in the event of the liquidation, dissolution, or winding up of the affairs of the Company, whether voluntary or involuntary, holders of Series A Preferred Stock shall rank on parity with common stockholders as to the distributions of assets.

On February 11, 2025, in connection with, and as consideration for the License Agreement, the Company entered into a Securities Purchase Agreement with Statera, pursuant to which the Company issued and sold to Statera an aggregate of (i)55,635 shares of Company common stock and (ii) approximately 360 shares of Series A Preferred Stock for an aggregate price of approximately $1.2 million.

On March 31, 2025, in connection with the Company’s exercise of the Neutropenia Option pursuant to the License Agreement and as consideration for the Neutropenia Milestone Payment, the Company entered into a Securities Purchase Agreement with Statera and Avenue, pursuant to whichthe Company issued to Statera and Avenue an aggregate of $500 thousand shares of Company stock, consisting of 55,704 shares of common stock and approximately 131 shares of Series A Preferred Stock.

Series B Preferred Stock

On April 29, 2025, the Company filed a Certificate of Designation of Preferences, Rights and Limitations of the Series B Non-Voting Convertible Preferred Stock (the “Series B Certificate of Designation”) with the Secretary of State of the State of Delaware in connection with the Tranched Financing. The Series B Certificate of Designation became effective upon filing and designates 8,400 shares of the Company’s preferred stock as Series B Preferred Stock.

Ranking - the Series B Preferred Stock ranks senior to the Company’s common stock and Series A Preferred Stock with respect to dividend rights and rights on the distribution of assets on any voluntary or involuntary liquidation, dissolution or winding up of the affairs of the Company.

Dividend Rights- the holders of outstanding shares of Series B Preferred Stock shall be entitled to cumulative dividends at an annual rate of 10% of the Stated Value (as defined below) per share. Dividends shall accrue from the date of each such Tranche Closing, and for as long as any shares of Series B Preferred Stock remain issued and outstanding and are payable quarterly in arrears. At the Company’s option, dividends on the Series B Preferred Stock may be paid in (i) cash, (ii) by adding the amount of dividends payable on such date to the aggregate Stated Value of such holder’s shares of Series B Preferred Stock (“PIK Dividends”), or (iii) any combination of cash and PIK Dividends. The “Stated Value” shall mean $1,000 per share, subject to adjustment in the event of any stock dividend (including PIK Dividends), stock split, combination, recapitalization, or other similar event affecting such shares.

Voting Rights -except as otherwise provided by the Series B Certificate of Designation or required by law, the Series B Preferred Stock has no voting rights. Provided, however, that so long as any shares of Series B Preferred Stock are outstanding, the Company will not, without the affirmative vote of the holders of a majority of the then-outstanding shares of the Series B Preferred Stock, (i) alter or change adversely the powers, preferences or rights given to the Series B Preferred Stock or alter or amend the Series B Certificate of Designation, amend or repeal any provision of, or add any provision to, the Company’s Charter or Bylaws, or file any articles of amendment, certificate of designations, preferences, limitations and relative rights of any series of preferred stock, in each case if any such action would adversely alter or change the preferences, rights, privileges or powers of, or restrictions provided for the benefit of the Series B Preferred Stock, (ii) issue further shares of Series B Preferred Stock, or (iii) enter into any agreement with respect to any of the foregoing.

Conversion - subject to the Series B Beneficial Ownership Limitation, at any time, each holder of Series B Preferred Stock shall have the right, at such holder’s option, to convert any or all of the shares of Series B Preferred Stock held by such holder into fully paid and nonassessable shares of Company common stock. The number of shares of common stock issuable upon conversion of each share of Series B Preferred Stock shall be equal to the quotient obtained by dividing (i) the Stated Value of such share of Series B Preferred Stock plus all accrued and unpaid dividends thereon by (ii) the Series B Conversion Price in effect on the date of conversion. The conversion price (the “Series B Conversion Price”) in effect on any conversion date shall be equal to 90% of the lowest closing volume-weighted average price of the Company’s common stock on the Nasdaq Capital Market for thefive trading days immediately preceding the date of the conversion notice delivered by the holder, subject to adjustment, provided, however, that in no event shall the Series B Conversion Price be lower than $1.294 per share (the “Floor Price”), subject to adjustment.

Beneficial Ownership Limitation - a holder of Series B Preferred Stock is prohibited from converting shares of Series B Preferred Stock into shares of common stock if, as a result of such conversion, such holder, together with its affiliates, would beneficially own in excess of the applicable beneficial ownership limitation (the “Series B Beneficial Ownership Limitation”). For purposes of the Series B Preferred Stock, the Series B Beneficial Ownership Limitation shall initially be set at 4.9% for each holder and its affiliates and may be adjusted at the discretion of the holder to a percentage between 4.9% and 19.9% (but not to exceed 19.9%) of the number of shares of common stock outstanding immediately after giving effect to the issuance of shares of common stock pursuant to such conversion.

Redemption Rights - the Company may, at any time and in its sole discretion, request to redeem all or any portion of the outstanding shares of Series B Preferred Stock at a price equal to 115% of the Stated Value plus all accrued and unpaid dividends thereon by providing the holder at least 10 days prior written notice, during which 10 day period the holder thereof shall have the right to convert such holder’s shares of Series B Preferred Stock into shares of Company common stock. Upon the closing of any equity or equity-linked financing by the Company after the issuance date, the holder shall have the right, but not the obligation, to require the Company to redeem, out of the proceeds of such financing, up to 25% of the aggregate amount of net proceeds raised in the financing, outstanding shares of Series B Preferred Stock at a per share price equal to the Stated Value, plus all accrued and unpaid dividends thereon, provided that such right shall expire 5 days after the holder receives notice from the Company of the consummation of a financing.

Liquidation Rights - in the event of the liquidation, dissolution, or winding up of the Company, whether voluntary or involuntary, the holders of Series B Preferred Stock shall be entitled to receive, prior and in preference to any distribution of any of the assets, funds, or proceeds available for distribution of the Company to the holders of common stock or any other class or series of capital stock ranking junior to the Series B Preferred Stock upon liquidation, by reason of their ownership thereof, an amount per share equal to the greater of (i) the Stated Value plus all accrued and unpaid dividends thereon or (ii) the amount that such holder would receive if such holder converted all of its shares of Series B Preferred Stock into common stock immediately prior to such liquidation, dissolution or winding up.

On April 29, 2025, the Company entered into a Securities Purchase Agreement (the “Preferred Purchase Agreement”) with an investor (the “Investor”), pursuant to which, subject to the conditions set forth therein, the Company shall sell to the Investor, and the Investor shall purchase from the Company, up to 8,400 shares of the Company’s Series B Preferred Stock and warrants (“Warrants”) to purchase shares of the Company’s common stock for a total purchase price of up to $8,400,000 (the “Tranched Financing”) in several tranche closings (each, a “Tranche Closing”).

The Preferred Purchase Agreement provides that the Tranched Financing shall be conducted through six separate Tranche Closings pursuant to which, subject to satisfaction of the applicable closing conditions set forth in the Preferred Purchase Agreement, the Company shall sell and issue the Investor up to an aggregate of 8,400 shares of Series B Preferred Stock as follows: (i)700 shares of Series B Preferred Stock, for $700,000, in the initial Tranche Closing, which was consummated on June 25, 2025; (ii)700 shares of Series B Preferred Stock, for $700,000, in the second Tranche Closing, which shall be consummated 10 trading days after the initial Tranche Closing; (iii)1,750 shares of Series B Preferred Stock, for $1,750,000, in the third Tranche Closing, which shall be consummated 20 trading days after the second Tranche Closing; (iv)1,750 shares of Series B Preferred Stock, for $1,750,000, in the fourth Tranche Closing, which shall be consummated 20 trading days after the third Tranche Closing; (v)1,750 shares of Series B Preferred Stock, for $1,750,000, in the fifth Tranche Closing, which shall be consummated 20 trading days after the fourth Tranche

Closing; and (vi)1,750 shares of Series B Preferred Stock, for $1,750,000, in the final Tranche Closing, which shall be consummated 20 trading days after the fifth Tranche Closing.

In addition to the shares of Series B Preferred Stock to be sold and issued to the Investor in the Tranched Financing, at each Tranche Closing the Company shall also issue the Investor a Warrant to purchase that number of shares of Company common stock equal to 30% of shares of common stock issuable upon conversion in full of the shares of Series B Preferred Stock issued at the same Tranche Closing. Each Warrant shall be immediately exercisable (subject to certain beneficial ownership limitations), expire five years from the date of issuance, and have an initial exercise price equal to the average closing price of the Company’s common stock during the prior five trading days preceding each Tranche Closing (as may be adjusted for stock dividends, subdivisions, or combinations in the manner described in the Warrant). In the event that Warrants issued to the Investor in a subsequent Tranche Closing have a lower exercise price than the Investor’s Warrants outstanding as of such later Tranche Closing, immediately after the Tranche Closing the exercise price of all outstanding Warrants held by the Investor shall automatically be reduced to equal such lower exercise price of the Warrants issued in such Tranche Closing.

In the event that the average closing price of the Company’s common stock during the prior three trading days preceding a Tranche Closing date shall not be equal to or greater than the Floor Price (as defined below), then the applicable Tranche Closing shall be delayed until such time as the price meets the required threshold for a period offive consecutive trading days. Notwithstanding the foregoing, the Investor has the ability, subject to prior written consent of the Company, to purchase any number of shares of Series B Preferred Stock prior to the dates of the Tranche Closings provided for in the Preferred Purchase Agreement.

The consummation of the transactions contemplated by the Preferred Purchase Agreement is subject to various customary closing conditions. Pursuant to the Preferred Purchase Agreement, subject to certain exceptions, for so long as any shares of Series B Preferred Stock remain outstanding (the “ROFR Period”), the Investor will have a right of first refusal to with respect to any investment proposed to be made by any other person for each and every future variable rate transaction during the ROFR Period. Additionally, subject to certain exceptions, for so long as the Investor holds any shares of Series B Preferred Stock, Warrants, or shares of common stock issued upon conversion of the Series B Preferred Stock or exercise of the Warrants, the Investor shall have the right to participate in any subsequent financing for up to 20% of such financing. Moreover, for so long as any shares of Series B Preferred Stock remain outstanding, subject to certain exceptions, the Investor shall have the right to require the Company to use 25% of the proceeds received by the Company from any future financing to redeem any shares of Series B Preferred Stock held by the Investor in accordance with the terms of the Series B Certificate of Designation.

The Preferred Purchase Agreement contains customary termination provisions for the Investor under certain limited circumstances and the Preferred Purchase Agreement will automatically terminate if any Tranche Closing has not occurred prior to December 31, 2025.

Craft Capital Management LLC (“Craft”) acted as placement agent to the Company in connection with the Tranched Financing. As consideration for services rendered by Craft, the Company shall (i) pay Craft a cash fee equal to eight percent (8%) of any such funds received by the Company from the Investor pursuant to the Preferred Purchase Agreement and(ii) issue to Craft that number of warrants to purchase shares of common stock equal in value to six percent (6%) of any such funds received by the Company from the Investor pursuant to the Preferred Purchase Agreement.

On June 25, 2025, the Company and the Investor held the initial Tranche Closing, pursuant to which the Company received gross proceeds of $700 thousand pursuant to the Preferred Purchase Agreement and issued 700 shares of Series B Preferred Stock to the Investor. In addition to the shares of Series B Preferred Stock, the Company issued to the Investor Warrants to purchase 61,287 shares of Company common stock with an initial exercise price of $3.85 per share. The Warrants are exercisable immediately and expire on June 25, 2030. Additionally, as consideration for placement agent services rendered by Craft in connection therewith, the Company paid Craft $56,000 at closing of the Initial Tranche and issued warrants to purchase an aggregate of 10,000 shares of Company common stock to the designees of Craft, which warrants have a term of four years from the date of issuance, are exercisable immediately upon issuance, and have an exercise price of $4.20 per share of common stock (equal to 110% of the closing price per share of the Company’s common stock on June 25, 2025). Net proceeds to the Company, after deducting placement agent fees and offering expenses paid by the Company, were $585 thousand. The net proceeds were allocated between the Series B Preferred Stock and Warrants issued in the offering based on the relative fair values, which were $455 thousand and $130 thousand, respectively.

11. Common Stock

At June 30, 2025 and December 31, 2024, there were 965,899 and 556,902 shares of Company common stock issued and outstanding, respectively.

Effective March 7, 2025, the Company implemented a reverse stock split of its issued and outstanding shares of common stock, par value $0.0001 per share, at a ratio of 1-for-17. As a result of the reverse stock split, the total number of shares of common stock held by each stockholder of the Company were converted automatically into the number of shares of common stock equal to the number of issued and outstanding shares of common stock held by each such stockholder immediately prior to the reverse stock split divided by 17. Refer to Note 2, Summary of Significant Accounting Policies, for details of the reverse stock split.

On May 13, 2024, the Company sold 277,059 shares of its common stock, together with Series A warrants (the “Series A Warrants”) to purchase an aggregate of 277,059 shares of common stock and Series B warrants (the “Series B Warrants” and collectively with the Series A Warrants, the “Common Warrants”) to purchase an aggregate of 415,589 shares of common stock, to certain investors in a registered public offering. Each share of common stock was sold together with one Series A Warrant and one and a half Series B Warrants at a combined price of $14.45 per share and Common Warrants, resulting in gross proceeds to the Company of approximately $4 million. Net proceeds to the Company, after deducting placement agent fees and offering expenses paid by the Company, was approximately $3.3 million. The net proceeds were allocated between the common stock and Common Warrants issued in the offering based on the relative fair values, which were $1.4 million and $1.9 million, respectively. Each of the Common Warrants are exercisable immediately upon issuance and have an exercise price of $14.45 per share, subject to certain adjustments. The Series A Warrants will expire one year from the date of issuance and the Series B Warrants will expire five years from the date of issuance. As compensation for services rendered by the placement agent, the Company paid the placement agent a cash fee of 7.0% of the gross proceeds of the offering (amounting to approximately $280 thousand) at closing, as well as $100 thousand for the reimbursement of certain expenses. Additionally, as partial consideration for services rendered in connection with the offering, the Company issued the placement agent registered warrants to purchase an aggregate of 11,083 shares of Company common stock, equal to 4.0% of the aggregate shares of common stock sold in the offering. The placement agent warrants have an initial exercise price of $15.90 per share (equal to 110% of the combined offering price per share and Common Warrants), have a term offive years from the commencement of sales in the offering, and are exercisable commencingsix months from closing. During the six months ended June 30, 2025, a total of 7,524 Series A Warrants were exercised for total proceeds of $109 thousand. On May 13, 2025, the remaining 269,535 Series A Warrants outstanding as of such date expired pursuant to their terms.

On September 13, 2024, the Company entered into an Equity Distribution Agreement (the “Distribution Agreement”) with Maxim Group LLC (“Maxim”), pursuant to which the Company may offer and sell, from time to time, through or to Maxim, as sales agent or principal, shares of its common stock. The Company will pay Maxim a commission of 3% of the aggregate gross proceeds from each sale of shares pursuant to the Distribution Agreement. The Company also agreed to reimburse Maxim for certain specified fees and expenses of up to $40 thousand, plus an additional $5 thousand for each bringdown, as provided in the Distribution Agreement. The agreement will terminate upon the earlier of (i) the sale of all shares of common stock having an aggregate offering price of $10 million; (ii) twenty four months from the date of the agreement; (iii) the mutual termination of the agreement upon fifteen days’ prior written notice; and (iv) as otherwise permitted therein. During the year ended December 31, 2024, the Company sold a total of 193,161 shares of its common stock pursuant to the Distribution Agreement for gross proceeds of $1.2 million. The Company paid Maxim $37 thousand in commissions. Net proceeds to the Company, after deducting commissions and offering expenses paid by the Company, was approximately $1.1 million. During the six months ended June 30, 2025, the Company sold an aggregate of 172,700 shares of common stock pursuant to the Distribution Agreement for gross proceeds of $1.8 million and net proceeds of $1.6 million after $53 thousand of commissions paid by the Company to Maxim and $108 thousand of legal and other fees.

On February 11, 2025, in connection with, and as consideration for, the License Agreement, the Company entered into a Securities Purchase Agreement with Statera, pursuant to which it issued and sold to Statera an aggregate of (i)55,635 shares of Company common stock and (ii) approximately 360 shares of Series A Preferred Stock for an aggregate price of approximately $1.2 million.

On March 18, 2025, the Company entered into an Equity Purchase Agreement (the “Purchase Agreement”) with Mast Hill Fund, L.P. (“Mast Hill”), pursuant to which the Company will have the right, but not the obligation, to sell to Mast Hill, and Mast Hill will have the obligation to purchase from the Company, up to $25 million shares of the Company’s common stock, at the Company’s sole discretion, over the 24 months following the date of execution, subject to the terms of the Purchase Agreement (the “Equity Line of Credit”). As consideration for Mast Hill’s commitment to purchase shares of Company common stock under the Purchase Agreement, the Company issued Mast Hill 29,800 restricted shares of common stock following the execution of the Purchase Agreement (the “Commitment Shares”). During the second quarter of 2025, the Company sold and issued an aggregate of 87,558 shares of common stock to Mast Hill pursuant to the Purchase Agreement for gross proceeds of $332 thousand and net proceeds of $311 thousand, after deducting offering costs of $21 thousand.

On March 31, 2025, in connection with the Company’s exercise of the Neutropenia Option pursuant to the License Agreement and as consideration for the Neutropenia Milestone Payment, the Company entered into a Securities Purchase Agreement with Statera and Avenue, pursuant to which the Company issued to Statera and Avenue an aggregate of $500 thousand shares of Company stock, consisting of an aggregate of 55,704 shares of common stock and approximately 131 shares of Series A Preferred Stock.

Common stockholders are entitled to dividends if and when declared by the Company’s Board of Directors, subject to the rights of the preferred stockholders. As of June 30, 2025, no dividends on common stock had been declared by the Company. At June 30, 2025 and December 31, 2024, the Company had reserved shares of common stock for issuance as follows:

12. Common Stock Warrants

Historically, the Company has entered into warrant agreements in connection with certain consulting agreements and equity offerings. In August 2023, the Company implemented a 1-for-100 reverse stock split pursuant to which, per the terms of the agreements, the number of shares of common stock issuable upon exercise of each of the warrants outstanding at that time was reduced by dividing the quantity outstanding by 100 and the exercise price of each such warrant was multiplied by 100. No other terms of the warrants were changed as a result of the reverse stock split. Additionally, in March 2025, the Company implemented a 1-for-17 reverse stock split pursuant to which, per the terms of the agreements, the number of shares of common stock issuable upon exercise of each of the warrants outstanding at that time was reduced by dividing the quantity outstanding by 17 and the exercise price of each such warrant was multiplied by 17. No other terms of the warrants were changed as a result of the reverse stock split.

In July 2021, the Company entered into a consulting agreement, pursuant to which warrants to purchase 30 shares of common stock were granted and warrants to purchase an additional 30 shares of common stock were granted in November 2021. The warrants are exercisable upon issuance, have an exercise price of $1,768.00 per share and have a term offive years. The consulting agreement was effective as of February 2021, had an initial monthly fee of $5 thousand and a term oftwo years. The agreement was amended in May of 2022 to increase the monthly payment to $7.5 thousand. Currently, the agreement is automatically renewing on a month-to-month basis until terminated by either party. The warrant issuances are indexed to, and settled in, the Company’s own common stock and were classified within stockholders’ equity.

In November 2021, the Company issued warrants to purchase 102 shares of common stock to designees of ThinkEquity LLC (“ThinkEquity”), the underwriter of the Company’s initial public offering. The warrants may be exercised at any time on or after May 9, 2022, have an exercise price of $10,625.00 per share and have a term offive years. The warrant issuances are indexed to and settled in the Company’s own common stock and were classified within stockholders’ equity.

In February 2023, the Company issued warrants to purchase 589 shares of common stock to designees of ThinkEquity, the underwriter of the underwritten public offering of 11,765 shares of Company common stock that closed in February 2023. The designees paid an aggregate of $0.1 thousand for the warrants. The warrants may be exercised at any time on or after August 7, 2023, have an exercise price of $531.25 per share, and have a term offour years commencing 180 days following the commencement of sales in the offering. The warrant issuances were indexed to and settled in the Company’s own stock and were classified within stockholders’ equity.

In July and August 2023, the Company issued warrants to purchase an aggregate of 2,805 shares of common stock to Maxim, the placement agent for each of the three public offerings of the Company’s common stock completed during the period. The warrants are exercisable at any time beginningsix months after the close of the applicable equity offering and expire five years from the commencement of sales under the applicable offering. Of the warrants issued in the offerings,765 are exercisable beginning on January 11, 2024 at a price of $113.20 per share;1,206 are exercisable beginning on January 19, 2024 at a price of $81.60 per share; and 781 are exercisable beginning on February 9, 2024 at a price of $83.64 per share.

In May 2024, in connection with the sale of 277,059 shares of common stock, the Company issued Series A Warrants to purchase an aggregate of 277,059 shares of common stock and Series B Warrants to purchase an aggregate of 415,589 shares of common stock to the purchasers of the stock. The warrants are exercisable upon issuance and have an exercise price of $14.45 per share. During the six months ended June 30, 2025, a total of 7,524 Series A Warrants were exercised for total proceeds of $109 thousand. Allremaining outstanding Series A Warrants expired on May 13, 2025 and the Series B Warrants expire on May 14, 2029. Additionally, the Company issued warrants to purchase 11,083 shares of common stock to Maxim, the placement agent for the public offering of the Company’s securities. The placement agent warrants are exercisable at any time beginning six months after the closing date of the equity offering and expire five years from the from the commencement of sales under the offering.

The Company estimated the value of the warrants issued to the placement agent in May 2024 using the Black-Scholes options valuation model. The fair value of the warrants issued in February 2023 was $195 thousand and was recognized as issuance costs of the common stock issued in the underwritten public offering and was classified within stockholders’ equity. The fair value of the warrants issued in July and August 2023 totaled $168 thousand and was recognized as issuance costs of the common stock issued in the three offerings during the period and was classified within stockholders’ equity. The fair value of the warrants issued in May 2024 was $70 thousand and was recognized as issuance costs of the common stock issued in the public offering and was classified within stockholders’ equity as additional paid in capital.

In June 2025, in connection with the Initial Tranche Closing, the Company issued to the Investor warrants to purchase 61,287 shares of common stock. The warrants are exercisable upon issuance, have an initial exercise price of $3.85 per share and expire on June 30, 2030. Additionally, the Company issued warrants to purchase 10,000 shares of common stock to designees of Craft, the placement agent in connection with the Tranched Financing, as partial consideration for services rendered by Craft in connection therewith. The placement agent warrants are exercisable upon issuance, have an exercise price of $4.20 per share and expire on June 30, 2029.

The Company estimated the value of the warrants issued to the placement agent using the Black-Scholes options valuation model. The fair value was $36 thousand and was recognized as issuance costs of the Series B Preferred Stock issued in the offering and was classified within stockholders’ equity as additional paid in capital.

The fair value of the warrants issued to placement agents in 2025 and 2024 was estimated on the date of grant using the following assumptions:

A summary of the Company’s outstanding warrants as of June 30, 2025 is as follows:

During the six months ended June 30, 2025, a total of 7,524 Series A Warrants were exercised for total proceeds of $109 thousand. There wereno warrant exercises in the six months ended June 30, 2024.

13. Equity Incentive Plans

2017 Equity Incentive Plan

In 2017, the Company adopted its 2017 Equity Incentive Plan (the “2017 Plan”).

On November 10, 2021, the 2017 Plan terminated and was replaced by the 2021 Plan (defined below), and future issuances of incentive instruments will be governed by the 2021 Plan. To the extent that outstanding awards under the 2017 Plan are forfeited or lapse unexercised, the shares of common stock subject to such awards will no longer be available for future issuance.

2021 Equity Incentive Plan

In 2021, the Company adopted the 2021 Equity Incentive Plan (the “2021 Plan”). The plan allows for the issuance of incentive stock options, nonstatutory stock options, restricted stock awards, restricted stock units, stock bonus awards and performance-based awards. Awards granted under the 2021 Plan are determined by the Compensation Committee of the Company’s board of directors, who is responsible for administering the 2021 Plan. The term for stock options shall be no more thanten years from the date of grant. In the case of an Incentive Stock Option granted to an optionee who, at the time the option is granted, owns stock representing more than 10% of the voting power of all classes of stock of the Company or any Parent or Subsidiary, the term of the option shall befive years from the date of grant or such shorter term as may be provided in the option Agreement. To the extent outstanding awards under the 2021 Plan are forfeited or lapse unexercised, the shares of common stock subject to such awards will be available for future issuance under the 2021 Plan. The 2021 Plan provides that additional shares will automatically be added to the shares authorized for issuance under the 2021 Plan on January 1 of each year. The number of shares added each year will be equal to the lesser of: (i)5.0% of the outstanding shares of the Company’s common stock on December 31st of the preceding calendar year or (ii) such number of shares determined by the board of directors, in its discretion. On January 1, 2024,4,312 shares were automatically added to the number of shares authorized for issuance under 2021 Plan (an increase equal to 5% of the number of the outstanding shares of Company common stock as of December 31, 2023).

Amended and Restated 2021 Equity Incentive Plan, as amended

On August 9, 2024, the Company adopted its Amended and Restated 2021 Equity Incentive Plan (the “A&R 2021 Plan”), which amended and restated the 2021 Plan in full to, amongst other things, increase the number of shares of common stock authorized for issuance thereunder from 5,434 shares to 58,823 shares. The Company’s Board of Directors unanimously approved the adoption of the A&R 2021 Plan, subject to stockholder approval, on June 15, 2024, and the Company’s stockholders approved the A&R 2021 Plan at the Company’s 2024 Annual Meeting of Stockholders held on August 9, 2024. On January 1, 2025,27,846 shares were automatically added to the number of shares authorized for issuance under A&R 2021 Plan (an increase equal to 5% of the number of the outstanding shares of Company common stock as of December 31, 2024).

On June 30, 2025, following stockholder approval, the Company further amended the A&R 2021 Plan to increase the number of shares of common stock authorized for issuance thereunder from 86,669 to 511,669 shares.

As of June 30, 2025, there were 454,401 shares of common stock available for issuance under the A&R 2021 Plan, as amended.

Stock Options

In the case of an incentive stock option (i) granted to an employee who, at the time of grant of such option, owns stock representing more than 10% of the voting power of all classes of stock of the Company or any parent or subsidiary of the Company, the exercise price shall be no less than 110% of the fair market value per share on the date of grant; (ii) granted to any other employee, the per share exercise price shall be no less than 100% of the fair market value per share on the date of grant. In the case of a non-statutory stock option (i) granted to an employee who, at the time of grant of such option, owns stock representing more than 10% of the voting power of all classes of stock of the Company or any parent or subsidiary of the Company, the exercise price shall be no less than 110% of the fair market value per share on the date of grant; (ii) granted to any other service provider, the per share exercise price shall be no less than 100% of the fair market value per share on the date of grant. Notwithstanding the foregoing, options may be granted with a per share exercise price other than as required above pursuant to a merger or other corporate transaction.

The options may include provisions permitting exercise of the option prior to full vesting. Any unvested shares upon termination shall be subject to repurchase by the Company at the original exercise price of the option. Stock options granted under the Company’s equity incentive plans generally vest over four years from the date of grant.

The following table summarizes the stock option award activity for the six months ended June 30, 2025:

The weighted-average exercise price as of June 30, 2025 for stock options outstanding and stock options exercisable was $152.28 and $346.95, respectively. The weighted average remaining contractual life as of June 30, 2025 for stock options outstanding and stock options exercisable was 9.09 and 8.55 years, respectively. Stock-based compensation expense related to stock options was $57 thousand and $131 thousand for the three and six months ended June 30, 2025, respectively. Stock-based compensation expense related to stock options was $53 thousand and $105 thousand for the three and six months ended June 30, 2024, respectively. As of June 30, 2025, there was $104 thousand of remaining expense, which is expected to be amortized over 0.93 years.

Restricted Stock Awards

The following table summarizes the restricted stock award activity for the six months ended June 30, 2025:

The fair value of restricted stock awards vested during the each of the three and six months ended June 30, 2025 was $0 and $2 thousand, respectively. The fair value of restricted stock awards vested during the each of the three and six months ended June 30, 2024 was $1 thousand and $3 thousand, respectively. There isno remaining expense to be recognized in connection with restricted stock awards.

Restricted Stock Units

The following table sets forth the status of the Company’s non-vested restricted stock units issued to employees:

The fair value of restricted stock units granted during each of the three and six months ended June 30, 2025 was $306 thousand. There wereno restricted stock units granted during the three and six months ended June 30, 2024. Stock-based compensation expense related to restricted stock units was $33 thousand and $57 thousand for the three and six months ended June 30, 2025, respectively. There was no expense for the three and six months ended June 30, 2024, asno restricted stock units had been issued. As of June 30, 2025, there was $416 thousand of remaining expense, which is expected to be amortized over 3.63 years.

In May 2025, the Company’s Board of Directors approved the award of certain bonus payments related to performance in 2024, to be paid in the form of restricted stock units once certain milestones have been achieved. As achievement of the milestones is estimated to be more likely than not, the Company accrued bonuses of $87 thousand as stock-based compensation as of June 30, 2025. It is expected that the underlying restricted stock units will be issued in the third quarter of 2025.

Total Stock-Based Compensation

Total stock-based compensation recorded in the condensed statements of operations is allocated as follows (in thousands):

14. Net Loss per Share

The Company applies the two-class method pursuant to the issuance of our Series B Preferred Stock. Accordingly, the Company’s basic net loss per share attributable to common stockholders is calculated by dividing the net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding during the period. Net loss attributable to common stockholders is equal to the Company’s net loss.

The calculation of basic earnings per share requires an allocation of earnings to all securities that participate in dividends with shares of common stock to the extent that each security may share in the Company’s earnings. Basic earnings per share are calculated by dividing undistributed earnings allocated to common stock by the weighted average number of shares of common stock.

Diluted earnings per share are calculated using the more dilutive of the two-class or if-converted methods. The two-class method uses net income available to common stockholders and assumes conversion of all potential shares other than the participating securities. The if-converted method uses net income and assumes conversion of all potential shares including the participating securities. For the periods where a net loss attributable to common stockholders is present, dilutive securities have been excluded from the calculation of diluted net loss per share attributable to common stockholders as including them would have been anti-dilutive.

The following outstanding potentially dilutive common stock equivalents have been excluded from the calculation of diluted net loss per share for the periods presented due to their antidilutive effect:

15. Segment Information

Tivic Health is a diversified therapeutics company harnessing the power of the immune and autonomic nervous systems to fight disease and restore health. Tivic’s bioelectronic program is developing non-invasive medical devices that optimize key stimulation parameters for the vagus nerve. Tivic’s new biopharma program is focused on advancing its first drug product candidate, Entolimod, into manufacturing, conducting process validation utilizing the output of such manufacturing, filing the associated Biologics License Application with the FDA, with the intent to sell the biologic compounds either inside or outside of the United States. Tivic also has an FDA-approved over-the-counter device, ClearUP, that treats sinus pain and pressure, for which it is actively pursuing various monetization strategies. Revenue is derived from sales of the Company’s first commercial product, ClearUP. To date, the Company manages the business activities as asingle operating segment. Tivic’s Chief Executive Officer is the CODM. The CODM utilizes the Company’s long-term plan, which includes product development roadmaps and long-term financial models, as key input to resource allocation. The CODM makes decisions on resource allocation, assesses performance of the business, and monitors budget versus actual results using factors such as gross margin, operating expenses, loss from operations and net loss.

Significant expenses within loss from operations, as well as within net loss, include costs of revenue, research and development, selling and marketing and general and administrative expenses, which are each separately presented on the Company’s Statements of Operations. Other segment items within net loss include interest income.

During the three and six months ended June 30, 2025 and 2024, all revenue was domestic revenue. To date, the Company has not sold its product outside of the United States.

The Company’s long-lived assets consist primarily of property and equipment, all of which are located in the United States.

16. Subsequent Events

In July 2025, the Company sold and issued an aggregate of 63,483 shares of common stock to Mast Hill pursuant tothe Mast Hill Purchase Agreement for gross proceeds of $215 thousand and net proceeds of $204 thousand after deducting offering costs.

On July 31, 2025, the Company and the Investor held the second Tranche Closing (the “Second Tranche Closing”), whereby the Investor paid $700,000 to the Company for the purchase of 700 shares of Series B Preferred Stock (the “Second Tranche Preferred Shares”) and Warrants to purchase 64,065 shares of Company common stock, thereby completing the Second Tranche Closing and formally issuing the Second Tranche Preferred Shares and Warrants. Additionally, as consideration for placement agent services rendered by Craft in connection therewith, the Company paid Craft $56,000 at closing of the Second Tranche and issued warrants to purchase an aggregate of 11,068 shares of our common stock to the designees of Craft, which warrants have a term of four years from the date of issuance, are exercisable immediately upon issuance, and have an exercise price of $3.795 per share of common stock (equal to 110% of the closing price per share of the Company’s common stock on July 31, 2025).