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BIO-PATH HOLDINGS INC

For the period ended Dec 31, 2023. Filed Mar 7, 2024.

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FY2023 · Filed Mar 7, 2024

BPTH$0.21-66.8%Stored close · as of Feb 18, 2025

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Contents

Notes to Consolidated Financial Statements

December 31, 2023

Unless the context requires otherwise, references in these Notes to the Consolidated Financial Statements to “we,” “our,” “us,” “the Company” and “Bio-Path” refer to Bio-Path Holdings, Inc. and its subsidiary. Bio-Path Holdings, Inc.’s wholly-owned subsidiary, Bio-Path, Inc., is sometimes referred to herein as “Bio-Path Subsidiary.”

1.Organization and Business

The Company is a clinical and preclinical stage oncology focused RNAi nanoparticle drug development company utilizing a novel technology that achieves systemic delivery for target specific protein inhibition for any gene product that is over-expressed in disease. The Company’s drug delivery and antisense technology, called DNAbilize®, is a platform that uses P-ethoxy, which is a deoxyribonucleic acid (DNA) backbone modification that is intended to protect the DNA from destruction by the body’s enzymes when circulating*in vivo,*incorporated inside of a lipid bilayer having neutral charge. The Company believes this combination allows for high efficiency loading of antisense DNA into non-toxic, cell-membrane-like structures for delivery of the antisense drug substance into cells.*In vivo,*the DNAbilize® delivered antisense drug substances are systemically distributed throughout the body to allow for reduction or elimination of target proteins in blood diseases and solid tumors. Through testing in numerous animal studies and dosing in clinical trials, the Company's DNAbilize® drug candidates have demonstrated an excellent safety profile. DNAbilize® is a registered trademark of the Company. Using DNAbilize® as a platform for drug development and manufacturing, the Company currently has four antisense drug candidates in development to treat at least five different cancer disease indications.

The Company was incorporated in May 2000 as a Utah corporation. In February 2008, Bio-Path Subsidiary completed a reverse merger with the Company, which at the time was traded over the counter and had no current operations. The prior name of the Company was changed to Bio-Path Holdings, Inc. and the directors and officers of Bio-Path Subsidiary became the directors and officers of Bio-Path Holdings, Inc. Effective December 31, 2014, the Company changed its state of incorporation from Utah to Delaware through a statutory conversion pursuant to the Utah Revised Business Corporation Act and the Delaware General Corporation Law.

On February 22, 2024, the Company effected a reverse stock split of its outstanding shares of common stock at a ratio of 1-for-20, and its common stock began trading on the spilt-adjusted basis on the Nasdaq Capital Market at the commencement of trading on February 23, 2024. All common stock share and per share amounts in this Annual Report on Form 10-K have been adjusted to give effect to the 1-for-20 reverse stock split.

The Company’s operations to date have been limited to organizing and staffing the Company, acquiring, developing and securing its technology and undertaking product development for a limited number of product candidates. As the Company has not begun its planned principal operations of commercializing a product candidate, the Company’s activities are subject to significant risks and uncertainties, including the potential requirement to secure additional funding, the outcome of the Company’s clinical trials and failing to operationalize the Company’s current drug candidates before another company develops similar products.

2.Summary of Significant Accounting Policies

Principles of Consolidation — The consolidated financial statements include the accounts of Bio-Path Holdings, Inc. and its wholly owned subsidiary Bio-Path, Inc. All intercompany accounts and transactions have been eliminated in consolidation.

Cash and Cash Equivalents — The Company considers all highly liquid investments with a maturity of three months or less when purchased to be cash equivalents.

Concentration of Credit Risk —Financial instruments that potentially subject the Company to a significant concentration of credit risk consist of cash. The Company maintains its cash balances with one major commercial bank, JPMorgan Chase Bank. The balances are insured by the Federal Deposit Insurance Corporation (the “FDIC”) up to $250,000. As a result, as of December 31, 2023, approximately $0.8 million of its cash balance was not covered by the FDIC. As of December 31, 2022, the Company had

approximately $10.4 million in cash on-hand, of which approximately $10.1 million was not covered by the FDIC. To date, the Company has not incurred any losses on its cash balances.

Furniture, fixtures and equipment** —** Furniture, fixtures and equipment are stated at cost and depreciated using the straight-line method over the estimated useful lives of the assets. Depreciation expense was $0.1 million for each of the years ended December 31, 2023 and 2022, respectively.

The estimated useful lives are as follows:

Computers and equipment –3 years

Furniture and fixtures –7 years

Scientific equipment –7 years

Leasehold improvements – Lesser of useful life or lease term

Major additions and improvements are capitalized, while costs for minor replacements, maintenance and repairs that do not increase the useful life of an asset are expensed as incurred.

Long-Lived Assets— The Company’s long-lived assets consist of furniture, fixtures and equipment, leasehold improvements and right-of-use operating assets. Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of the asset is measured by a comparison of the asset’s carrying amount to the estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated undiscounted future cash flows, an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds the fair value of the asset.

Research and Development Costs —Costs and expenses that can be clearly identified as research and development are charged to expense. Advance payments, including nonrefundable amounts, for goods or services that will be used or rendered for future research and development activities are deferred and capitalized. Such amounts will be recognized as an expense as the related goods are delivered or the related services are performed. If the goods will not be delivered, or services will not be rendered, then the capitalized advance payment is charged to expense.

The Company estimates its clinical trial expense each period based on a cost per patient calculation which is derived from estimated start-up costs, clinical trial costs based on the number of patients and length of treatment and clinical study report costs. These services are performed by the Company’s third-party clinical research organizations, laboratories and clinical investigative sites. The expense is recorded in research and development expense each period. Amounts that have been prepaid in advance of work performed are recorded in other current assets.

Stock-Based Compensation — The Company records stock-based compensation expense measured using the fair value method. The Company uses the Black-Scholes option valuation model to calculate stock-based compensation at the date of grant. Option pricing models require the input of highly subjective assumptions, including the expected price volatility. The Company's policy is to estimate forfeitures at the grant date and revise, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Changes in these assumptions can materially affect the fair value estimate.

Warrants — The Company determines whether warrants should be classified as a liability or equity. For warrants classified as

liabilities, the Company estimates the fair value of the warrants at each reporting period using Level 3 inputs with changes in fair

value recorded in the Consolidated Statement of Operations as change in fair value of warrant liability. The estimates in

valuation models are based, in part, on subjective assumptions, including but not limited to stock price volatility, the expected life of

the warrants, the risk-free interest rate and the fair value of the common stock underlying the warrants, and could differ materially in

the future. The Company will continue to adjust the fair value of the warrant liability at the end of each reporting period for changes in

fair value from the prior period until the earlier of the exercise or expiration of the applicable warrant.

Net Loss Per Share —Basic net loss per common share is computed by dividing net loss attributable to common stockholders for the period by the weighted average number of common shares outstanding during the period. Although there were warrants and stock options outstanding during 2023 and 2022, they were not included in the computation of any diluted per-share amount when a loss exists, as it would be anti-dilutive. Consequently, diluted net loss per share as presented in the financial statements is equal to basic net

loss per share for the years 2023 and 2022. The calculation of diluted earnings per share for 2023 did not include 43,383 shares and 190,063 shares issuable pursuant to the exercise of outstanding common stock options and warrants, respectively, as of December 31, 2023, as the effect would be anti-dilutive. The calculation of diluted earnings per share for 2022 did not include 32,871 shares and 60,027 shares issuable pursuant to the exercise of outstanding common stock options and warrants, respectively, as of December 31, 2022, as the effect would be anti-dilutive.

Use of Estimates — The preparation of consolidated financial statements in conformity with generally accepted accounting principles in the United States (“U.S.”) requires management to make estimates and assumptions that affect the amounts reported in the Company’s consolidated financial statements and accompanying notes. On an ongoing basis, the Company evaluates its estimates and judgments, which are based on historical and anticipated results and trends as well as on various other assumptions that the Company believes to be reasonable under the circumstances. By their nature, estimates are subject to an inherent degree of uncertainty and, as such, actual results may differ from the Company’s estimates. These estimates include prepaid and accrued clinical trial costs, stock-based compensation expense, valuation of warrants and valuation of deferred tax assets.

Income Taxes — Deferred income tax assets and liabilities are determined based upon differences between the financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse.

Liquidity** —**Since its inception, the Company has devoted substantially all of its efforts to product development, raising capital and building infrastructure, and has not generated significant revenues from its planned principal operations. The Company does not anticipate generating significant revenues for the foreseeable future. The Company’s activities are subject to significant risks and uncertainties.

The Company has experienced significant losses since its inception, including net losses of $16.1 million and $13.9 million for the years ended December 31, 2023 and 2022, respectively. As of December 31, 2023, the Company had an accumulated deficit of $107.6 million and $1.1 million in cash and cash equivalents. The Company hasno debt commitments. Substantially all of the Company’s net losses have resulted from costs incurred in connection with its research and development activities and its general and administrative expenses to support operations. The Company’s net losses may fluctuate significantly from quarter to quarter and year to year.

The Company’s available cash at December 31, 2023 will not be sufficient to fund current liabilities and capital expenditure requirements. Therefore, substantial doubt exists about the Company’s ability to continue as a going concern. The Company expects to continue to incur significant operating expenses for the foreseeable future in connection with its ongoing activities, including conducting clinical trials, manufacturing development and seeking regulatory approval of its drug candidates, prexigebersen, BP1002, BP1003 and BP1001-A. Accordingly, the Company will continue to require substantial additional capital to fund its projected operating requirements. Such additional capital may not be available when needed or on terms favorable to the Company. In addition, the Company may seek additional capital due to favorable market conditions or strategic considerations, even if it believes it has sufficient funds for its current and future operating plan. There can be no assurance that the Company will be able to continue to raise additional capital through the sale of securities in the future. If the Company is not able to secure adequate additional funding, the Company may be forced to make reductions in spending, extend payment terms with suppliers and/or suspend or curtail planned programs. Any of these actions could materially harm the Company’s business, results of operations, financial condition and future prospects.

Recent Accounting Pronouncements — From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board (FASB) that are adopted by the Company as of the specified effective date. There are no recent accounting pronouncements that have a material impact on the Company’s consolidated financial statements.

3.Prepaid Drug Product

Advance payments, including nonrefundable amounts, for goods or services that will be used or rendered for future clinical development activities are deferred and capitalized. Such amounts will be recognized as an expense as the related goods are delivered or the related services are performed. The Company recognized certain expenses and incurred installment costs for its contract drug manufacturing and raw material suppliers with prepayments totaling $3.6 million as of December 31, 2022 pursuant to drug supply contracts for the manufacture and delivery of prexigebersen for testing in a Phase 2 clinical trial, BP1001-A for testing in a Phase 1

clinical trial and BP1002 for testing in a Phase 1 clinical trial. The Company recognized certain expenses and incurred additional installment costs during 2023, with advanced payments remaining to be expensed totaling $0.6 million as of December 31, 2023.

4.Other Current Assets

As of December 31, 2023, other current assets included prepaid expenses of $1.4 million, comprised primarily of prepayments of $0.9 million made for the Company’s clinical trials for BP1002 in AML and lymphoma and BP1001-A in solid tumors as well as prepaid insurance of $0.3 million, prepaid Delaware franchise tax of $0.1 million and other prepaid expenses of $0.1 million. As of December 31, 2022, other current assets included prepaid expenses of $1.6 million, comprised primarily of prepayments of $1.3 million made for the Company’s clinical trials for BP1002 in AML and lymphoma, BP1001-A in solid tumors and prexigebersen in AML as well as prepaid insurance of $0.3 million.

5.Property and Equipment

The following table summarizes property and equipment as of December 31, 2023 and 2022:

​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​
​ · ​ · ​ · ​ · December 31,
​ · Estimated Useful · ​ · ​ · ​ · ​
​ · Lives · 2023 · 2022
​ · ​ · (in years) · ​ · (in thousands)
Leasehold improvements2 to 5​$463​$463
Computers and office equipment3​83​83
Furniture and fixtures7​93​93
Scientific equipment7​481​481
Total​​​1,120​1,120
Less: Accumulated depreciation​​​(1,044)​(962)
Net property and equipment​​​$76​$158
6.Accounts Payable

As of December 31, 2023, current liabilities included accounts payable of $0.5 million, comprised primarily of expenses related to our clinical trials of $0.3 million, legal and patent fees of $0.1 million and other accounts payables of $0.1 million. As of December 31, 2022, current liabilities included accounts payable of $0.7 million, comprised primarily of expenses related to drug manufacturing, development and testing services of $0.6 million and legal and patent fees of $0.1 million.

7.Accrued Expense

As of December 31, 2023, current liabilities included accrued expenses of $1.3 million, comprised primarily of expenses related to the Company’s clinical trial for prexigebersen in AML of $0.8 million, accrued employee vacation and bonus expenses of $0.2 million, professional and consulting fees of $0.1 million, legal and patent fees of $0.1 million and other accrued expenses of $0.1 million. As of December 31, 2022, current liabilities included accrued expenses of $0.9 million, comprised primarily of accrued employee vacation and bonus expenses of $0.4 million, drug manufacturing, development and testing services of $0.2 million, professional and consulting fees of $0.1 million, legal and patent fees of $0.1 million and other accrued expenses of $0.1 million.

** **** ****8.**Warrant Liability

In connection with the 2023 Public Offering (as defined in Note 10), the Company issued the 2023 Warrants (as defined in Note 10). The 2023 Warrants contain a provision applicable in the event of a fundamental transaction whereby the volatility used to calculate the warrant exercise terms is fixed and meets the definition of a derivative.

Due to this provision and in accordance with ASC 815 Derivatives and Hedging, the 2023 Warrants were classified as a liability and recorded at fair value using the Black-Scholes valuation model. The estimated fair value of the warrant liability for the 2023 Warrants on the closing date of the 2023 Public Offering, August 7, 2023, was $1.2 million. As of December 31, 2023, the fair value of the warrant liability was $0.9 million. The net change in fair value during the year of $0.3 million, comprised of a decrease in fair value of

$0.6 million related to warrant exercises partially offset by an increase in fair value of the warrant liability for the 2023 Warrants of $0.3 million, is shown as other loss on the Company’s Consolidated Statements of Operations. The Company will continue to measure the fair value of the 2023 Warrants each quarter until they are exercised or expire, and any change will be adjusted accordingly on the Company’s financial statements.

** 9. Fair Value Measurements**

In accordance with ASC 820, the Company uses various inputs to measure the 2023 Warrants on a recurring basis to determine the fair value of the liability. ASC 820 also establishes a hierarchy categorizing inputs into three levels used to measure and disclose fair value. The hierarchy gives the highest priority to quoted prices available in active markets and the lowest priority to unobservable inputs. An explanation of each level in the hierarchy is described below:

Level 1 – Unadjusted quoted prices in active markets for identical instruments that are accessible by the Company on the measurement date

Level 2 – Quoted prices in markets that are not active or inputs which are either directly or indirectly observable

Level 3 – Unobservable inputs for the instrument requiring the development of assumptions by the Company

The following table summarizes the Company’s 2023 Warrants measured at fair value within the hierarchy on a recurring basis as of December 31, 2023:

​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​
​ · ​ · ​ · Fair Value Measurements at · ​
​ · ​ · ​ · December 31, 2023 · ​
​ · ​ · ​ · (in thousands) · ​
​ · ​ · ​ · Level 1 · ​ · ​ · Level 2 · ​ · ​ · Level 3 · ​ · ​ · Total · ​
Liabilities: · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​
Warrant liability​$—​$—​$863​$863​

The Company did not have the 2023 Warrants at December 31, 2022.

The following table summarizes changes to the fair value of the Level 3 2023 Warrants for the year ended December 31, 2023:

​​​​​
​ · ​ · Fair Value of
​ · ​ · Warrant
​ · ​ · Liability
​ · ​ · (in thousands)
Balance at December 31, 2022​$—​
Issuance​​1,186​
Exercises​​(594)​
Change in fair value​​271​
Balance at December 31, 2023​$863​

The Company utilized the Black-Scholes valuation model for estimating the fair value of the 2023 Warrants using the following assumptions as of December 31, 2023:

​ · ​ · ​ · ​ · ​
​​As of
​​December 31,
​2023
Risk-free interest rate​3.84%
Expected volatility​102%
Expected term in years​4.6
Dividend yield​—%

​

10.Stockholders’ Equity

Issuances of Common Stock – On November 6, 2022, the Company entered into a placement agency agreement with Roth Capital Partners, LLC relating to the 2022 Registered Direct Offering and the 2022 Private Placement. In addition, on November 6, 2022, the Company entered into securities purchase agreements with several institutional and accredited investors pursuant to which the Company agreed to sell, in a registered direct offering, an aggregate of 40,000 shares of our common stock for gross proceeds of approximately $2.0 million under the base prospectus contained in the Company’s shelf registration statement on Form S-3 filed with the SEC, which was declared effective by the SEC on June 14, 2022 (File No. 333-265282) (the “2022 Shelf Registration Statement”), and a related prospectus supplement filed with the SEC on November 9, 2022 (the “2022 Registered Direct Offering”). In a concurrent private placement, the Company also agreed pursuant to the securities purchase agreements to issue to such investors warrants to purchase up to 40,000 shares of its common stock (the “2022 Private Placement”). The 2022 Registered Direct Offering and the 2022 Private Placement closed on November 9, 2022. The net proceeds from the offerings, after deducting the placement agent’s fees and expenses and the Company’s offering expenses, and excluding the proceeds, if any, from the exercise of the warrants issued in the offerings, were approximately $1.7 million.

On August 3, 2023, the Company entered into a placement agency agreement with Roth Capital Partners, LLC relating to a best efforts public offering of an aggregate of 175,000 shares of our common stock, together with warrants to purchase up to 175,000 shares of the Company’s common stock (“the 2023 Warrants”), for gross proceeds of approximately $2.1 million (the “2023 Public Offering”). The 2023 Public Offering was made pursuant to a registration statement on Form S-1, as amended (File No. 333-272879), which was declared effective by the SEC on August 2, 2023. The 2023 Public Offering closed on August 7, 2023. The net proceeds from the offering, after deducting the placement agent’s fees and expenses and the Company’s offering expenses, and excluding the proceeds, if any, from the exercise of the warrants issued in the offering, were approximately $1.7 million.

During the year ended December 31, 2023, the Company issued an aggregate of 44,625 shares of its common stock pursuant to the exercise of warrants at a weighted average exercise price of approximately $12.00 per share. The net proceeds to the Company from the exercise of the warrants were approximately $0.5 million. The Company did not issue any common stock pursuant to the exercise of warrants during the year ended December 31, 2022.

Stockholders’ Equity totaled $0.4 million as of December 31, 2023 compared to $14.2 million as of December 31, 2022. There were 617,633 shares of common stock issued andoutstanding as of December 31, 2023. There wereno shares of preferred stock issued andoutstanding as of December 31, 2023.

11.Stock-Based Compensation Plan

The 2022 Plan – On December 15, 2022, the Company’s stockholders approved the Bio-Path Holdings, Inc. 2022 Stock Incentive Plan (the “2022 Plan”), which replaced the 2017 Stock Incentive Plan, as amended (the “2017 Plan,” and together with the 2022 Plan, the “Plans”). As of stockholder approval of the 2022 Plan on December 15, 2022, no further awards will be made under the 2017 Plan. The 2022 Plan provides for the grant of Incentive Stock Options, Non-Qualified Stock Options, Restricted Shares, Restricted Share Units, Stock Appreciation Rights and other stock-based awards, or any combination of the foregoing, to the Company’s employees, non-employee directors and consultants. As of December 31, 2023, there were 65,000 shares of common stock reserved for future

issuance of awards under the 2022 Plan. Under the 2022 Plan, the exercise price of awards is determined by the Board of Directors or the compensation committee of the Board of Directors, and for options, may not be less than the fair market value as determined by the closing stock price at the date of the grant. Each option and award under the 2022 Plan shall vest and expire as determined by the Board of Directors or the compensation committee. Options expire no later thanten years from the date of grant. All grants provide for accelerated vesting if there is a change in control, as defined in the 2022 Plan.

Stock option awards granted for the years 2023 and 2022 were estimated to have a weighted average fair value per share of $27.80 and $74.20, respectively. The fair value calculation is based on stock options granted during the year using the Black-Scholes option-pricing model on the date of grant. In addition, for all stock options granted, exercise price was determined based on the fair value as determined by the closing stock price at the date of the grant. For stock options granted during 2023 and 2022 the following weighted average assumptions were used in determining fair value:

​ · ​ · ​ · ​ · ​ · ​ · ​
​ · 2023 · 2022
Risk-free interest rate3.42%​2.43%
Expected volatility129%​127%
Expected term in years6.0​6.0​
Dividend yield—%​—%

The Company determines the expected term of its stock option awards using the simplified method based on the weighted average of the length of the vesting period and the term of the exercise period. Expected volatility is determined by the volatility of the Company’s historical stock price over the expected term of the grant. The risk-free interest rate for the expected term of each option granted is based on the U.S. Treasury yield curve in effect at the time of grant.

Option activity under the Plans for the year ended December 31, 2023 was as follows:

​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​
​ · ​ · ​ · ​ · ​ · Weighted · ​ · ​ · ​
​ · ​ · ​ · ​ · Weighted- · ​ · Average · ​ · ​ · ​
​ · ​ · ​ · ​ · Average · ​ · Remaining · ​ · Aggregate
​ · ​ · ​ · ​ · Exercise · ​ · Contractual · ​ · Intrinsic
​ · ​ · Options · ​ · Price · ​ · Term · ​ · Value
​ · ​ · (in thousands) · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​
​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​
Outstanding at December 31, 202233​$233.40​​7.9​$—
Granted11​$27.80​​9.3​​
Expired​(1)​$1,840.00​​​​​​
Outstanding at December 31, 202343​$161.20​​7.6​$—
Vested and expected to vest December 31, 2023​43​$162.80​​7.6​$—
Exercisable at December 31, 202325​$236.20​​6.9​$—

The aggregate intrinsic value represents the total pretax intrinsic value (the difference between the Company’s closing stock price on December 31, 2023 and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on December 31, 2023. This amount changes based on the fair value of the Company’s stock.

Option activity under the Plans for the year ended December 31, 2022 was as follows (in thousands, except as noted):

​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​
​ · ​ · ​ · ​ · ​ · Weighted · ​ · ​ · ​
​​​​Weighted-​Average​​​
​ · ​ · ​ · ​ · Average · ​ · Remaining · ​ · Aggregate
​ · ​ · ​ · ​ · Exercise · ​ · Contractual · ​ · Intrinsic
​ · ​ · Options · ​ · Price · ​ · Term · ​ · Value
​ · ​ · (in thousands) · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​
​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​
Outstanding at December 31, 202124​$291.60​​8.4​$7,800
Granted10​74.20​​9.3​​
Expired(1)​119.20​​​​​
Outstanding at December 31, 202233​$233.40​​7.9​$—
Vested and expected to vest December 31, 2022​32​$238.00​​7.9​$—
Exercisable at December 31, 202216​$372.40​​7.3​$—

The aggregate intrinsic value represents the total pretax intrinsic value (the difference between the Company’s closing stock price on December 31, 2022 and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on December 31, 2022. This amount changes based on the fair value of the Company’s stock.

Stock-Based Compensation Expense – Total stock-based compensation expense for the year ended 2023 was $0.7 million, which consisted of research and development expense of $0.2 million and general and administrative expense of $0.6 million. As of December 31, 2023, future stock-based compensation expense for all outstanding unvested options was $0.9 million, which is expected to be recognized over a weighted-average vesting period of 1.8 years. Total stock-based compensation expense for the year ended 2022 was $0.9 million, which consisted of research and development expense of $0.2 million and general and administrative expense of $0.7 million.

12.Warrants

A summary of warrants outstanding and exercisable as of December 31, 2023 is as follows (in thousands, except as noted):

​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​
​ · ​ · Warrants Outstanding · ​ · Warrants Exercisable
​ · ​ · ​ · ​ · Weighted · ​ · ​ · ​ · ​ · ​ · ​ · ​ · ​
​ · ​ · ​ · ​ · Average · ​ · Weighted · ​ · ​ · ​ · Weighted
​ · ​ · ​ · ​ · Remaining · ​ · Average · ​ · ​ · ​ · Average
​ · ​ · Number · ​ · Contractual · ​ · Exercise · ​ · Number · ​ · Exercise
Year Issued · Outstanding · Life · Price · Exercisable · Price
​​​(in years)(per share)​​(per share)
201860.2​384.006​384.00
2019140.8​275.2014​275.20
2022404.4​15.2040​15.20
20231304.6​12.00130​12.00
​1904.1​$43.20190​$43.20
13.Commitments and Contingencies

Drug Supplier Project Plan – Total commitments for the Company’s drug supplier project plan were $1.0 million as of December 31, 2023, comprised of $0.8 million for the manufacture of the Company’s Grb2 drug substance and $0.2 million for testing services. The Company expects to incur $0.9 million of these commitments over the next 12 months.

14.Leases

In April 2014, the Company entered into afive-year lease agreement for administrative office space located in Bellaire, Texas. The term of the lease began on August 1, 2014 and was set to expire on July 31, 2019; however, in May 2019, the Company entered into

an amendment to the lease agreement toextend the term of the lease for a period offive years, beginning on August 1, 2019 and ending on October 31, 2024.

In April 2016, the Company entered into athree-year lease agreement for lab space located in Bellaire, Texas. The term of lease began on May 1, 2016 and was set to expire on April 30, 2019; however, in December 2018, the Company entered into an amendment to the lease agreement to extend the term for a period ofthree years, beginning on May 1, 2019 and ending on April 30, 2022. In January 2022, the Company exercised an option in the lease agreement amendment to extend the term of the lease to April 30, 2025.

At the inception of an agreement, the Company determines if the agreement is a lease based on the unique facts and circumstances in each agreement. Lease classification, recognition, and measurement are then determined at the lease commencement date. For agreements that contain a lease, the Company identifies lease and non-lease components, determines the consideration in the contract, determines whether the lease is an operating or financing lease and recognizes right of use (“ROU”) assets and lease liabilities. Lease liabilities and their corresponding ROU assets are recorded based on the present value of lease payments over the expected lease term. The interest rate implicit in lease contracts is typically not readily determinable so the Company uses an incremental borrowing rate based on the information available at the lease commencement date, which represents an estimated rate that would be incurred to borrow over a similar term in a similar economic environment. The weighted average incremental borrowing rate utilized on its lease liabilities as of December 31, 2023 was 8.0%.

The Company’s current leases include options to renew which can impact the lease term. The exercise of these options is at its discretion and the Company does not include any of these options within the expected lease term as there is no reasonable certainty these options will be exercised. Fixed lease payments on operating leases are recognized over the expected term of the lease on a straight-line basis within its consolidated financial statements. The Company’s leases are included in ROU assets, current portion of lease liabilities and noncurrent lease liabilities in its consolidated balance sheet for the year ended December 31, 2023.

The following table summarizes the Company’s operating lease assets and liabilities:

​ · ​ · ​ · ​ · ​ · ​ · ​
​December 31,
​​2023​2022
​ · ​ · (in thousands)
Assets: · ​ · ​ · ​
Operating lease assets​$102​$198
​​​
Liabilities:​​
Current portion of lease liabilities​103​108
Noncurrent lease liabilities​10​113
Total operating lease liabilities​$113​$221

The following table summarizes the Company's lease related costs:

​ · ​ · ​ · ​ · ​ · ​ · ​
​December 31,
​​2023​2022
​ · ​ · (in thousands)
Operating lease costs​$113​$115
Variable lease costs​10​5
Total lease costs​$123​$120

The Company made cash payments for its operating leases of $0.1 million for the year ended December 31, 2023.

The following table summarizes the Company's expected minimum lease payments:

​​​​
​ · ​ · As of December 31, 2023
​ · ​ · (in thousands)
2024$108
2025​11
Future minimum lease payments​119
Less: Interest​(6)
Present value of operating lease liabilities​$113

As of December 31, 2023, the weighted average remaining lease term was 1.0 years.

15.Benefit Plan

The Company initiated a contribution savings plan under Section 401(k) of the Internal Revenue Code in 2016. Under the plan, all eligible employees may contribute up to the statutory allowable amount governed by the Internal Revenue Service for any calendar year. The Company makes matching contributions equal to 100% of the first 3% and 50% of the next 2% of each employee’s base salary up to the allowable amount, which is fully vested on the date the matching contributions are made. For the years ended December 31, 2023 and 2022, matching contributions totaled $52,000 and $37,000, respectively.

16.Income Taxes

At December 31, 2023, the Company had a net operating loss carryforward for federal income tax purposes of $97.3 million, $35.8 million of which begins to expire in varying amounts in tax years 2026 through 2037. Approximately $61.5 million of net operating losses, incurred after December 31, 2017, carryforward indefinitely. Additionally, the Company has a research and development tax credit carryforward of $6.5 million for federal income tax purposes that begins to expire in varying amounts in tax year 2028. In connection with the Company’s equity transactions in 2007 and 2019, the Company determined that the utilization of net operating losses in future years may be subject to limitations by reason of an “ownership change” as defined under Section 382 of the Internal Revenue Code (IRC) (“Section 382 Limitation”). As a result of the Section 382 Limitation, the Company may not be able to fully utilize its net operating loss carry forwards and other tax credit carry forwards to offset future taxable income. Based on the Company’s estimated impact of the ownership change and Section 382 Limitation as of December 31, 2023, the net operating loss was reduced to $88.3 million, and the tax credits were reduced to $4.8 million for credits earned after the 2019 ownership change. During the year ended December 31, 2023, the Company raised additional equity capital and has yet to determine whether an ownership change occurred. If an ownership change is determined to have occurred in 2023, additional limitations on the Company’s net operating losses incurred prior to the ownership change may apply. Based on operations through December 31, 2023, the Company has estimated that the net operating loss and tax credits should be further reduced by providing a full valuation allowance against both.

In assessing the ability to realize its deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers evidence such as the reversal of deferred tax liabilities, projected future results of operations, and tax planning strategies in making this assessment. Based upon the level of historical taxable income, significant book losses during the current and prior periods, and projections for future results of operations over the periods in which the deferred tax assets are deductible, among other factors, management continues to conclude that the Company does not meet the “more likely than not” requirement of ASC 740 in order to recognize deferred tax assets. As such, a valuation allowance has been recorded to offset the Company’s net deferred tax assets at December 31, 2023. The Company recorded an increase in the valuation allowance of $5.0 million for the year ended December 31, 2023.

Due to the uncertainty surrounding the realization of the benefits of its deferred assets, including NOL carryforwards, the Company has provided a 100% valuation allowance on its net deferred tax assets at December 31, 2023 and 2022. The valuation allowance was $24.2 million and $19.1 million as of December 31, 2023 and 2022, respectively.

The components of the Company’s deferred tax asset are as follows:

​​​​​​​
​December 31,
​ · 2023 · 2022
​ · ​ · (in thousands)
Deferred tax assets – non-current​​
​​​​​​​
Accrued bonuses​$22​$63
Accrued vacation​24​28
Net operating loss (NOL) carryover​18,550​15,818
Research & development tax credits​4,769​2,509
Share based expense​750​671
Other​3​3
Right of use lease liability​​24​​46
Fixed asset depreciation​50​44
Total deferred tax asset​24,192​19,182
Less: valuation allowance​(24,171)​(19,140)
Net deferred tax asset​21​42
Right of use asset​(21)​(42)
Net deferred tax asset​$—​$—

Reconciliation between income taxes at the statutory tax rate (21%) and the actual income tax provision for continuing operations follows:

​​​​​​​
​ · ​ · December 31,
​ · 2023 · 2022
​ · ​ · (in thousands)
Loss before income taxes​$(16,078)​$(13,868)
Tax (benefit) at statutory tax rate​(3,376)​(2,912)
Effects of:​​​​
Exclusion of incentive stock option expense​74​80
R&D tax credits​(2,261)​844
Increase in valuation allowance​5,031​98
FMV of warrants​​57​​—
Section 382 limit - NOL​​—​​1,890
Other​475​—
Provision for income taxes​$—​$—

As of December 31, 2023, the Company hadno unrecognized income tax benefits. The Company’s policy for classifying interest and penalties associated with unrecognized income tax benefits is to include such items as tax expense. No interest or penalties have been recorded as of the year ended December 31, 2023, andno interest or penalties have been accrued as of December 31, 2023 and 2022, respectively.

The Company’s open years for Internal Revenue Service (IRS) examination purposes due to normal statute of limitation are 2020, 2021 and 2022. However, since the Company has operating loss carryforwards, the IRS has the ability to make adjustments to items that originate in a year otherwise barred by the statute of limitations under Section 6501 of the IRC of 1986, as amended, in order to redetermine tax for an open year to which those items are carried. Therefore, in a year in which a net operating loss deduction was claimed, the IRS may examine the year in which the net operating loss was generated and adjust it accordingly for purposes of assessing additional tax in the year the net operating loss was claimed. The Company is not currently under examination by the IRS or any other taxing authorities.

17.Subsequent Events

On February 22, 2024, the Company effected a reverse stock split of its outstanding shares of common stock at a ratio of 1-for-20, and its common stock began trading on the spilt-adjusted basis on the Nasdaq Capital Market at the commencement of trading on February 23, 2024 (See Note 1).

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.