Skip to main content

OMEROS CORP

For the period ended Jun 30, 2025. Filed Aug 14, 2025.

View on SEC.gov

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jun 30, 2025 · Filed Aug 14, 2025

OMER$16.92-0.9%Stored close · as of Nov 6, 2026

What changed in Management’s Discussion and Analysis?

Read the current filing

Previous report: 10-Q

Period ended 2025-03-31; filed 2025-05-15.

0001437749-25-017213

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Current report: 10-Q

Period ended 2025-06-30; filed 2025-08-14.

0001437749-25-026933

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 90 previous paragraphs and 105 current paragraphs.

50 unchanged; 30 reworded; 22 added; 7 removed; 3 previous and 3 current paragraphs rearranged.

Tables are not compared: 7 previous and 9 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Added paragraphs (22)

Current report

The lead product candidate in our pipeline of complement-targeted therapeutics is narsoplimab (OMS721), a proprietary, patented human monoclonal antibody targeting MASP-2, the key activator of the lectin pathway of complement. As previously disclosed, in March 2025, the Company resubmitted to U.S. Food and Drug Administration (“FDA”) the biologics license application (“BLA”) seeking regulatory approval for narsoplimab in hematopoietic stem cell transplant-associated thrombotic microangiopathy (“TA-TMA”). The resubmission was accepted for review by FDA as a class 2 resubmission and, pursuant to the Prescription Drug User Fee Act (“PDUFA”), was assigned an initial target action date for the FDA decision of September 25, 2025. Following the submission of information in response to an information request from FDA, FDA informed us that the PDUFA date will be extended to December 26, 2025. To date, all analyses requested by FDA as part of its review have been consistent with and have provided statistically significant support of narsoplimab’s benefit demonstrated in the analyses submitted as part of the BLA resubmission. In addition, FDA has stated that, assuming no major deficiencies are identified during its review, labeling discussions are planned to begin no later than October 2025.

Current report

In June 2025, we submitted a Marketing Authorization Application (“MAA”) for narsoplimab for the treatment of TA-TMA in the European Union. The European Medicines Agency (“EMA”) completed validation of the narsoplimab MAA, which confirms that the submission is accepted and starts the formal review process by EMA’s Committee for Medicinal Products for Human Use. We expect an opinion on the MAA in mid-2026.

Current report

See “Note 1 — Organization and Basis of Presentation” and “Note 6 — Debt” in the Notes to Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q for further details.

Current report

As of June 30, 2025, we had cash, cash equivalents and short-term investments of $28.7 million available to fund operations and to service debt. For the six months ended June 30, 2025, our cash used in operations was $57.8 million and included a net loss for the six months ended June 30, 2025 of $58.9 million. On July 28, 2025, we received approximately $20.6 million in cash proceeds net offering expenses from funds managed by Polar Asset Management Partners (collectively, “Polar”) in exchange for 5,365,853 shares of our common stock sold in a registered direct offering at a price of $4.10 per share, representing a 14 percent premium to the closing price of our common stock on the day of pricing.

Current report

See “Note 1 — Organization and Basis of Presentation,Liquidity and Capital Resources” in the Notes to the Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q for further details.

Current report

For further details, see “Note 2 – Significant Accounting Policies,Discontinued Operations andOMIDRIA Royalty Obligations,” and “Note 8 — OMIDRIA Royalty Obligation” in the Notes to the Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q.

Current report

For the three months ended June 30, 2025, clinical research and development expenses decreased $22.1 million primarily due to reduced manufacturing expenses of OMS906 by $3.8 million as compared to the prior year quarter and the inclusion in the prior year quarter of $17.6 million related to the release of narsoplimab drug substance batches.

Current report

For the six months ended June 30, 2025, clinical research and development expenses decreased $25.1 million primarily due to a $4.7 million reduction in manufacturing expenses associated with our zaltenibart program, a $4.9 million reduction in costs associated with our terminated Phase 3 program evaluating narsoplimab for treatment for immunoglobulin-A nephropathy and the inclusion in the prior year period of $17.6 million of expenses upon delivery of narsoplimab drug substance batches. These decreases were partially offset by increases in clinical trial costs incurred in connection with our zaltenibart development programs in the current year period.

Current report

Total selling, general and administrative expenses, excluding stock-based compensation, decreased by $2.9 million and $3.8 million, respectively, for the three and six months ended June 30, 2025, compared to the same periods in the prior year. These decreases were primarily due to capitalizing $2.8 million of debt issuance costs as a contra liability under our 2029 Notes related to our Convertible Note Exchange, which occurred in May 2025. In addition, there were further decreases due to reduced consulting expenses in the current quarter as well as recognition of state tax expense in the prior year period.

Current report

For the three months ended June 30, 2025, interest expense decreased $9.2 million compared to the same period in 2024. The decrease primarily relates to $9.2 million of non-cash remeasurement costs on our OMIDRIA royalty obligation to reflect the change in the future expected OMIDRIA cash flows from Rayner and a $1.7 million net decrease in interest expense on our 2026 Notes. The decrease in 2026 Notes interest expense relates to the $118.1 million aggregate principal amount of the 2026 Notes we repurchased in June 2024, the exchange of $70.8 million aggregate principal amount of 2026 Notes for 2029 Notes in May 2025 and cancellation of $3.3 million aggregate principal amount of 2026 Notes upon delivery of shares in June 2025 for the first tranche of the Equitization Transaction. These decreases were partially offset by a $2.4 million increase in net interest due to incurring a full quarter of interest expense on the Term Loan and due to incurring interest on the 2029 Notes issued in May 2025.

Current report

Loss on early extinguishment of 2026 convertible senior notes

Current report

In May 2025, we exchanged $70.8 million of 2026 Notes for 2029 Notes and entered into agreements to equitize $10.0 million of 2026 Notes, realizing a $3.0 million non-cash loss on extinguishment. The extinguishment reflects marking-to-market the 2029 Notes and the expensing of capitalized debt issuance costs on the retired portion of the 2026 Notes.

Current report

Prior to June 30, 2025, net embedded derivative assets and liabilities were not significant. The issuance of our 2029 Notes resulted in an initial $23.0 million embedded derivative which we recorded when the transaction closed on May 14, 2025. As of June 30, 2025, we remeasured the derivative to fair value. The gain on change in fair value of financial instruments primarily reflects an $8.0 million remeasurement of the 2029 Notes embedded derivative.

Current report

Net income from discontinued operations decreased $8.6 million and $11.2 million, respectively, for the three and six months ended June 30, 2025 due to remeasurement of the OMIDRIA contract royalty asset. The decrease was primarily attributable to a remeasurement of our OMIDRIA contract royalty asset to reflect lower forecasted sales of OMIDRIA.

Current report

On May 12, 2025, we entered into the Equitization Transaction, and on May 14, 2025, we completed the Convertible Note Exchange. (See “Note 1 — Organization and Basis of Presentation” and “Note 6 — Debt” in the Notes to Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q for further details.)

Current report

On July 28, 2025, we issued and sold to Polar 5,365,853 shares of our common stock sold in a registered direct offering at a price of $4.10 per share, representing a 14 percent premium to the closing price of our common stock on the day of pricing. We received approximately $20.6 million in cash proceeds net of offering expenses.

Current report

We are in discussions regarding potential asset acquisition and/or licensing agreements in connection with certain of our clinical assets. The most advanced of these discussions relates to an agreement with a potential multi-billion total transaction value exclusive of royalties. Upon closing this transaction, we would expect to receive an upfront payment that would (1) provide for the repayment in full of our Term Loan, as well as related prepayment premiums, (2) allow for repayment at or prior to maturity of our outstanding 2026 Notes, and (3) provide sufficient additional capital for more than 12 months of post-closing operations. We would expect this transaction also would include near- and longer-term milestones that could provide substantial additional capital and, if regulatory approval is obtained, sales-based milestones and royalties with respect to commercial sales. We can provide no assurance that any transaction will be consummated on favorable terms or at all.

Current report

The conditions described above, including the need to raise additional capital, when evaluated in accordance with the relevant accounting literature, raise substantial doubt with respect to our ability to meet our obligations through one year from the issuance of the Company’s condensed consolidated financial statements. Our ability to continue as a going concern will require us to generate positive cash flow from operations, obtain additional financing, enter into strategic alliances, and/or sell assets, and this determination is made without considering any such potential future activities. The accompanying condensed consolidated financial statements do not include any adjustments to reflect the possible future effects on the recoverability and classification of assets or the amounts and classification of liabilities that may result from uncertainty related to our ability to continue as a going concern.

Current report

Operating Activities. Net cash used in operating activities for the six months ended June 30, 2025 decreased by $30.0 million as compared to the same period in 2024, driven primarily by a $34.3 million decrease in net loss and a $9.2 million increase in accounts payable, partially offset by $13.8 million of non-cash items, which is primarily comprised of pass-through royalties from Rayner and a gain on change in fair value of financial instruments.

Current report

Net cash provided by investing activities during the six months ended June 30, 2025 increased by $46.8 million reflecting the timing of purchase of investments from proceeds received on maturities and sales.
Removed paragraphs (7)

Previous report

On December 23, 2021, we closed an Asset Purchase Agreement (the “Asset Purchase Agreement”) with Rayner Surgical Inc. (“Rayner”) for the sale of OMIDRIA and related business assets. As contemplated by the Asset Purchase Agreement, in December 2022, we achieved a milestone event upon the establishment of separate payment for OMIDRIA for a continuous period of at least four years when furnished in the ambulatory surgery center setting. The achievement of this milestone event resulted in a reduction of our royalty rate applicable to U.S. net sales of OMIDRIA from 50% to 30%. The 30% royalty rate continues until the expiration or termination of the last issued and unexpired U.S. patent, which we expect to occur no earlier than 2035.

Previous report

On September 30, 2022, we sold to DRI Healthcare Acquisition LP (“DRI”) an interest in a portion of our future OMIDRIA royalty receipts for $125.0 million which we recorded as an OMIDRIA royalty obligation in our condensed consolidated balance sheet. DRI was entitled under that arrangement to receive royalties on OMIDRIA net sales between September 1, 2022 and December 31, 2030, subject to certain annual caps.

Previous report

For the three months ended March 31, 2025, clinical research and development expenses decreased $3.0 million compared to the prior year quarter primarily due to the winding down of our IgA nephropathy program following analysis of our Phase 3 clinical trial results and reduction in spend on our OMS1029 program. These costs were offset by increased PNH clinical development costs.

Previous report

Interest expense is comprised of contractual cash and accrued interest on our 2026 Notes and Term Loan. In addition, we record pass through interest on the OMIDRIA royalty obligation, non-cash interest comprised of remeasurement adjustments taken on our OMIDRIA royalty obligation and amortization of debt discount or premiums on our notes and term debt.

Previous report

Interest is earned on the OMIDRIA contract royalty asset at an implied effective interest rate of 11.0%. The $2.6 million decrease in net income from discontinued operations is primarily due to lower royalties earned in the first quarter of 2025 compared to the first quarter of 2024, which resulted in a lower remeasurement adjustment.

Previous report

Operating Activities. Net cash used in operating activities for the three months ended March 31, 2025 decreased by $5.9 million compared to the same period in 2024. This decrease was primarily due to a $4.6 million reduction in prepayments during the quarter as compared to the same period in the prior year.

Previous report

Net cash provided by investing activities during the three months ended March 31, 2025 changed by $100.5 million as compared to the same period in 2024 as cash and investments were used to fund operations.
Reworded paragraphs (30)

Previous wording

The lead product candidate in our pipeline of complement-targeted therapeutics is narsoplimab (OMS721), a proprietary, patented human monoclonal antibody targeting MASP-2, the key activator of the lectin pathway of complement. In March 2025, we resubmitted to FDA a BLA seeking regulatory approval for narsoplimab in TA-TMA. The resubmission was accepted for review by FDA as a class 2 resubmission and, pursuant to the Prescription Drug User Fee Act (“PDUFA”), has been assigned a target action date for the FDA decision of September 25, 2025. As with any BLA or new drug application, there can be no guarantee that FDA will complete its review within a given timeframe, or that our BLA will ultimately be approved. We also preparing a European marketing authorization application (MAA) for narsoplimab in TA-TMA, which is targeted for submission to the European Medicines Agency during the second quarter of 2025. Development efforts in our narsoplimab program have also been directed to COVID-19, acute respiratory distress syndrome and post-acute sequelae SARS-CoV-2, commonly known as long COVID.

Current wording

As with any BLA or MAA, there can be no guarantee that FDA or the EMA will complete their respective reviews within a given timeframe, or that the Company’s BLA or MAA will ultimately be approved.

Previous wording

We began initiating clinical trial sites in our Phase 3 program for zaltenibart in PNH during the first quarter of 2025; however, based on considerations of capital availability and the anticipated ramp up in spending on those trials, we have determined temporarily to pause our Phase 3 clinical development program for zaltenibart in this indication to prioritize the use of our available capital to other programs. We are working with our vendors and investigators to ensure that these studies can be restarted after securing capital and allocating it to the program with as little disruption to the timeline as possible.

Current wording

We began initiating clinical trial sites in our Phase 3 program for zaltenibart in PNH during the first quarter of 2025; however, based on considerations of capital availability and the anticipated ramp up in spending on those trials, we have determined temporarily to pause our Phase 3 clinical development program for zaltenibart in this indication to prioritize the use of our available capital to other programs. We have worked, and will continue to work, with our vendors and investigators to ensure that these studies can be restarted after securing capital and allocating it to the program with as little disruption to the timeline as possible.

Previous wording

Our PDE7 inhibitor program, which we refer to as OMS527, comprises multiple PDE7 inhibitor compounds and is based on our discoveries of previously unknown links between PDE7 and any addiction or compulsive disorder, and between PDE7 and any movement disorders. In April 2023, we were awarded a grant from the National Institute on Drug Abuse, part of the National Institutes of Health, to develop our lead orally administered PDE7 inhibitor compound, for which we have successfully completed a Phase 1 study, for the treatment of cocaine use disorder (“CUD”). With NIDA funding, we successfully completed preclinical cocaine interaction/toxicology studies to assess safety of the OMS527 compound when co-administered with cocaine. Based on the successful outcome of the preclinical studies, we have initiated, and NIDA has confirmed availability of grant funding for, an in-patient, placebo-controlled clinical study evaluating the safety and effectiveness of OMS527 in adults with CUD who receive concurrent intravenous cocaine. Organizational and regulatory activities necessary to begin the study evaluating OMS527 in adult patients with CUD is in progress with enrollment expected to begin in 2025 and data anticipated to become available late this year or early 2026.

Current wording

Our PDE7 inhibitor program, which we refer to as OMS527, comprises multiple PDE7 inhibitor compounds and is based on our discoveries of previously unknown links between PDE7 and any addiction or compulsive disorder, and between PDE7 and any movement disorders. In April 2023, we were awarded a grant from the National Institute on Drug Abuse (“NIDA”), part of the National Institutes of Health, to develop our lead orally administered PDE7 inhibitor compound for the treatment of cocaine use disorder. NIDA awarded the grant to us for a total of $6.24 million over three years, of which we have claimed and received $1.5 million of funding to date. The grant is intended to support preclinical cocaine interaction/toxicology studies to assess safety of the therapeutic candidate in the presence of concomitant cocaine administration, as well as an in-patient, placebo-controlled clinical study evaluating the safety and effectiveness of OMS527 in adult cocaine users who receive concurrent intravenous cocaine. The preclinical studies, designed by NIDA toxicologists, have been successfully completed with no safety findings and provide drug-interaction safety data in support of the planned in-patient human study of OMS527 in cocaine users. FDA has requested that we provide additional preclinical information prior to initiating the clinical in-patient study in cocaine users, which we are targeting for the first part of 2026.

Previous wording

We continue on a limited basis to progress pre-clinical studies within our novel oncology program, including IND-enabling studies in our program to develop novel, proprietary large molecule therapeutics designed to target and kill only dividing cancer cells. Acute myeloid leukemia (“AML”) is the lead indication for development in this program, which we refer to as OncotoX-AML. In preclinical models bothin vivo andin vitro, our potential AML therapeutic has consistently demonstrated superior efficacy to current AML standard of care treatments and has been well-tolerated in preliminary, preclinical tolerability studies. Our OncotoX-AML therapeutic also shows broad potential application across AML regardless of genetic mutation, including TP53, NPM1, KMT2a and FLT3.

Current wording

We continue on a limited basis to progress pre-clinical studies within our novel oncology program, including IND-enabling studies in our program to develop novel, proprietary large molecule therapeutics designed to target and kill only dividing cancer cells. Acute myeloid leukemia (“AML”) is the lead indication for development in this program, which we refer to as Oncoto X-AML. In preclinical models bothin vivo – in immunocompromised mice with human tumors – andin vitro, our potential AML therapeutic has consistently demonstrated superior efficacy to current AML standard of care treatments and has been well-tolerated in preliminary, preclinical tolerability studies. Our Oncoto X-AML therapeutic also shows broad potential application across AML regardless of genetic mutation, including TP53, NPM1, KMT2A, and FLT3.

Previous wording

In April 2025, we established the Omeros Oncology Clinical Steering Committee to help advance our OncotoX-AML program. The clinical steering committee is composed of leaders in AML treatment and research at the premier cancer centers across the United States. These experts in the treatment of AML are expected to help guide clinical development of our potential AML therapeutic. IND-enabling work is ongoing with an estimated timeline to clinical entry of 18-24 months.

Current wording

In April 2025, we established the Omeros Oncology Clinical Steering Committee to help advance our Oncoto X-AML program. The clinical steering committee is composed of leaders in AML treatment and research at the premier cancer centers across the United States. These experts in the treatment of AML are expected to help guide clinical development of our potential AML therapeutic. IND-enabling work is ongoing with an estimated timeline to clinical entry of 18-24 months.

Previous wording

On June 3, 2024 (the “Closing Date”), we, with certain subsidiaries, as guarantors, entered into the Credit and Guaranty Agreement (the “Credit Agreement”) with Athyrium Capital Management, LP (collectively, “Athyrium”) and certain funds managed by Highbridge Capital Management, LLC (collectively, “Highbridge”) as lenders (together with additional lenders from time to time, the “Lenders”) and Wilmington Savings Fund Society, FSB, as administrative agent and collateral agent. The Credit Agreement provides for a senior secured term loan facility initially of up to $92.1 million consisting of (i) the term loan of $67.1 million (the “Term Loan”), which was fully funded on the Closing Date, and (ii) a $25.0 million delayed draw term loan (the “Delayed Draw Term Loan”), which may be drawn once in full upon notice delivered on or prior to June 3, 2025, conditioned on receipt of FDA approval of narsoplimab in TA-TMA within 30 days of the notice. We do not expect to meet the conditions required to access the Delayed Draw Term Loan based on the September 25, 2025 target date for FDA action assigned to the BLA for narsoplimab.

Current wording

On June 3, 2024 (the “Closing Date”), we, with certain subsidiaries, as guarantors, entered into the Credit and Guaranty Agreement (the “Credit Agreement”) with Athyrium Capital Management, LP and certain funds managed by Highbridge Capital Management, LLC, as lenders (together with additional lenders from time to time, the “Lenders”) and Wilmington Savings Fund Society, FSB, as administrative agent and collateral agent. The Credit Agreement provides for a senior secured term loan facility of $67.1 million (the “Term Loan”), which was fully funded on the Closing Date.

Previous wording

In 2024, we used the $67.1 million Term Loan, along with $21.7 million of cash on hand to repurchase from the Lenders $118.1 million aggregate principal amount of the Company's existing 5.25% convertible senior notes due on February 15, 2026 (the “2026 Notes”, and such repurchase the “2026 Note Repurchase Transaction”). The principal amount retired in the 2026 Note Repurchase Transaction represented a 55% reduction of the outstanding principal balance of the 2026 Notes at a purchase price of approximately 75% of par value.

Current wording

In 2024, we used the $67.1 million Term Loan proceeds, along with $21.7 million of cash on hand to repurchase from the Lenders $118.1 million aggregate principal amount of our existing 5.25% convertible senior notes due on February 15, 2026 (the “2026 Notes”), which resulted in a $51.0 million reduction in our total outstanding debt.

Previous wording

The Credit Agreement contains certain customary default provisions, representations and warranties and affirmative and negative covenants, including a covenant for the Credit Parties to maintain at all times unrestricted cash, cash equivalents and short-term investments of at least $25.0 million in accounts subject to control agreements, and a covenant limiting the use of cash for open market or privately negotiated repurchases of any outstanding 2026 Notes to: (i) an initial amount not exceeding $25.0 million, which may be increased by up to an additional $10.0 million subject to the satisfaction of certain conditions; (ii) an unlimited amount, if the amount of Loans outstanding at the time of repurchase does not exceed $38.5 million; and (iii) an additional amount not to exceed 50% of the net cash proceeds from an equity offering, provided that we offer to prepay an equal amount of Loans with the net cash proceeds of such offering.

Current wording

The Credit Agreement contains certain customary default provisions, representations and warranties and affirmative and negative covenants, including a covenant for the Credit Parties to maintain at all times unrestricted cash, cash equivalents and short-term investments of at least $25.0 million in accounts subject to control agreements, and a covenant limiting the use of cash for open market or privately negotiated repurchases of any outstanding 2026 Notes.

Previous wording

We are permitted under the Credit Agreement to repurchase additional outstanding 2026 Notes for cash in open market or privately negotiated transactions, subject to certain limitations described below. Additionally, until November 1, 2025, we may at our sole discretion exchange up to $14.9 million aggregate principal amount of outstanding 2026 Notes for cash and additional term loan amounts, with the holders of such notes becoming Lenders under the Credit Agreement (any such additional term loans, together with the Term Loan and the Delayed Draw Term Loan, the “Loans”). We also retain all potential future value of the capped call purchased in connection with the issuance of the 2026 Notes covering all shares underlying the original 2026 Notes.

Current wording

We are permitted under the Credit Agreement to repurchase additional outstanding 2026 Notes for cash in open market or privately negotiated transactions, subject to certain limitations described above. Additionally, until November 1, 2025, we may at our sole discretion exchange up to $14.9 million aggregate principal amount of outstanding 2026 Notes for cash and additional Term Loan amounts, with the holders of such notes becoming Lenders under the Credit Agreement.

Previous wording

The Loans accrue interest at an adjusted term secured overnight financing rate, (“adjusted term SOFR”) (with a 3.00% floor) plus 8.75% per annum, payable quarterly. As of March 31, 2025, the contractual interest rate on the Term Loan was 13.17%. We may choose to pay up to 50% of any quarterly interest payment in kind by adding the portion of such interest payment to the outstanding principal amount of Loans using a quarterly interest rate of adjusted term SOFR (with a 3.00% floor) plus 10.25% per annum. A default interest rate of an additional 3.00% per annum would apply on all outstanding obligations after the occurrence and during the continuance of certain specified events of default.

Current wording

Amounts outstanding under the Term Loan accrues interest at an adjusted term secured overnight financing rate, (“adjusted term SOFR”) (with a 3.00% floor) plus 8.75% per annum, payable quarterly. As of June 30, 2025, the contractual interest rate on the Term Loan was 13.17%. We may choose to pay up to 50% of any quarterly interest payment in kind by adding the portion of such interest payment to the outstanding principal amount of Loans using a quarterly interest rate of adjusted term SOFR (with a 3.00% floor) plus 10.25% per annum. A default interest rate of an additional 3.00% per annum would apply on all outstanding obligations after the occurrence and during the continuance of certain specified events of default.

Previous wording

We may elect to prepay Loans, in whole or in part, in cash, subject to (i) during the first year of such Loans, a make-whole premium plus 5.00% of the aggregate principal amount of Loans subject to prepayment (unless the prepayment is made in contemplation of a change of control, in which case only the make-whole premium would be payable); (ii) during the second year, a 5.00% prepayment premium; and (iii) during the third year, a 3.00% prepayment premium. The Credit Agreement requires mandatory prepayments of Loans in an amount equal to 60% of the net cash proceeds (excluding research and development and certain other milestone payments) received by the Credit Parties from asset sales and licenses. Mandatory prepayments are also required: (i) from insurance recoveries on loss of property that are not otherwise reinvested in other assets of the Credit Parties; (ii) from indebtedness incurred by any of the Credit Parties other than as permitted by the Credit Agreement; (iii) in the event of a change of control and (iv) in respect of 25% of the amount of any Milestone Payment received from DRI its affiliates on the basis of net sales of OMIDRIA. See “Note 6 — Debt” in the Notes to the Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q.

Current wording

We may elect to prepay the Term Loan, in whole or in part, in cash, subject to (i) during the first year amounts are outstanding under the Term Loan, a make-whole premium plus 5.00% of the aggregate principal amount of the Term Loan balance subject to prepayment (unless the prepayment is made in contemplation of a change of control, in which case only the make-whole premium would be payable); (ii) during the second year, a 5.00% prepayment premium; and (iii) during the third year, a 3.00% prepayment premium. The Credit Agreement requires mandatory prepayments of outstanding Term Loans in an amount equal to 60% of the net cash proceeds (excluding research and development and certain other milestone payments) received by the Credit Parties from asset sales and licenses. Mandatory prepayments are also required: (i) from insurance recoveries on loss of property that are not otherwise reinvested in other assets of the Credit Parties; (ii) from indebtedness incurred by any of the Credit Parties other than as permitted by the Credit Agreement; (iii) in the event of a change of control, and (iv) in respect of 25% of the amount of any Milestone Payment received from DRI its affiliates on the basis of net sales of OMIDRIA. See “Note 6 — Debt” in the Notes to the Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q.

Previous wording

In May 2025, we completed the exchange of $70.8 million of our 2026 Notes on a one-for-one basis for newly issued convertible senior notes maturing on June 15, 2029 (the “Convertible Note Exchange”). In addition, the Company entered into note conversion agreements (each, a “Note Conversion Agreement”) with two affiliated holders of the 2026 Notes to convert $10.0 million aggregate principal amount of 2026 Notes into shares of the Company’s common stock (the “Equitization Transaction”). Under the terms of the Note Conversion Agreements, the holders will convert the principal amount of the 2026 Notes in three equal tranches for a number of shares of common stock to be determined based in part on the closing price of the Company’s common stock on May 9, 2025 and in part based on the 20-day volume-weighted average price applicable to each tranche conversion date, subject to a floor conversion price. The Note Conversion Agreements provide that conversion of the entire $10.0 million principal amount of 2026 Notes will be completed no later than September 15, 2025.

Current wording

On May 12, 2025, the Company entered into note conversion agreements (each, a “Note Conversion Agreement”) with two affiliated holders of the 2026 Notes to convert $10.0 million aggregate principal amount of 2026 Notes into shares of the Company’s common stock (the “Equitization Transaction”). Under the terms of the Note Conversion Agreements, the holders agreed to convert the equitized principal amount of the 2026 Notes in three tranches for a number of shares of common stock to be determined based in part on the closing price of the Company’s common stock on May 9, 2025 and in part based on the 20-day volume-weighted average price applicable to each tranche conversion date, subject to a floor conversion price. As of the date of this report, $10.0 million aggregate principal amount of 2026 Notes have been converted and retired and we have issued an aggregate of 2,535,875 shares of common stock. The Note Conversion Agreements provide that the final settlement for the third tranche of notes will occur no later than September 15, 2025.

Previous wording

The Convertible Note Exchange reduced the aggregate principal balance of our 2026 Notes from $97.9 million to $27.1 million. Upon completion of the Equitization Transaction, the aggregate principal balance of our 2026 Notes will have been further reduced from $27.1 million to $17.1 million. As a result of the reduced principal balance of the 2026 Notes, the Company will no longer be required to make a $20.0 million prepayment of the Term Loan outstanding under the Credit Agreement. The prepayment otherwise would have been required to be paid in November 2025 to avoid accelerated maturity of the entire Term Loan balance.

Current wording

The aggregate principal balance of our 2026 Notes was reduced from $97.9 million to $17.1 million as a result of the Convertible Note Exchange and Equitization Transaction. No new cash was received as a result of these transactions. As a result of the reduced principal balance of the 2026 Notes, the Company will no longer be required to make a $20.0 million prepayment of the Term Loan outstanding under the Credit Agreement which otherwise would have been required to be paid in November 2025 to avoid accelerated maturity of the entire Term Loan balance.

Previous wording

Upon the occurrence of certain events described in the Asset Purchase Agreement, including during any specific period in which OMIDRIA is no longer eligible for separate payment (i.e., becomes included in the packaged payment rate for the surgical procedure) under Medicare Part B, or in certain circumstances involving entry of generic competition for OMIDRIA, the U.S. base royalty rate would be further reduced to 10%. Pursuant to legislation enacted in late 2022, we expect separate payment for OMIDRIA under Medicare Part B to extend until at least January 1, 2028.

Current wording

On December 23, 2021, we closed on an Asset Purchase Agreement (the “Asset Purchase Agreement”) with Rayner Surgical Inc. (“Rayner”) for the sale of our commercial product OMIDRIA which we recorded as an OMIDRIA contract asset on our condensed consolidated balance sheet. The results of OMIDRIA activities, which includes royalties earned and the effect of any remeasurement adjustments, are classified as discontinued operations in our condensed consolidated statements of operations and comprehensive loss. We currently earn royalties from Rayner on all U.S. based sales through December 31, 2031 at a royalty rate of 30%. Our royalty rate would be reduced to 10% upon the occurrence of certain events described in the Asset Purchase Agreement, including during any specific period in which OMIDRIA is no longer eligible for separate payment (i.e., becomes included in the packaged payment rate for the surgical procedure) under Medicare Part B, or in certain circumstances involving entry of generic competition for OMIDRIA. We continue to earn royalties until the expiration or termination of the last issued and unexpired U.S. patent, which we expect to occur no earlier than 2035. Pursuant to legislation enacted in late 2022, we also expect separate payment for OMIDRIA under Medicare Part B to extend until at least January 1, 2028.

Previous wording

On February 1, 2024, we sold an expanded interest in our future OMIDRIA royalties to DRI and received $115.5 million in cash consideration, which we recorded as an addition to the OMIDRIA royalty obligation. The amended and restated royalty purchase agreement with DRI (the “Amendment”) eliminated the previously existing annual caps on royalty payments after January 1, 2024, and provides that DRI receives all royalties on U.S. net sales of OMIDRIA payable between January 1, 2024 and December 31, 2031. In addition to the cash consideration received at closing, the Amendment also entitles us to receive two milestone payments of up to $27.5 million each, payable in January 2026 and January 2028, respectively, based on achievement of certain thresholds for U.S. net sales of OMIDRIA. All royalties earned on OMIDRIA sales within the U.S. through December 31, 2031 are remitted by Rayner to an escrow account established by Omeros, from which payments are made to DRI. We retain the rights to receive all royalties payable by Rayner on any net sales of OMIDRIA outside the U.S. as well as royalties on global net sales of OMIDRIA payable from and after December 31, 2031, including royalties on U.S. OMIDRIA net sales. To date, international royalties have not been significant. DRI has no recourse to our assets other than its interest in OMIDRIA royalties. Interest expense on the OMIDRIA royalty obligation is recorded as a component of continuing operations. See “Note 8 — OMIDRIA Royalty Obligation” in the Notes to the Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q.

Current wording

We have sold to DRI Healthcare Acquisition LP (“DRI”) our future U.S. based OMIDRIA royalty receipts through December 31, 2031 which we record as an OMIDRIA royalty obligation on our condensed consolidated balance sheet. All U.S. based royalties through December 31, 2031 are remitted by Rayner to an escrow account established by Omeros, from which payments are made to DRI. We retain the rights to receive all ex-U.S. royalties through December 31, 2031 and royalties on global net sales of OMIDRIA after this date, including royalties on U.S. OMIDRIA net sales. Interest expense on the OMIDRIA royalty obligation is recorded as a component of continuing operations.

Previous wording

We expect research and development expenses, exclusive of any one-time restructuring expenses, in the second quarter of 2025 to be lower than those in the first quarter of this year due to a pause in our two Phase 3 clinical trials for zaltenibart and reductions in development activities across certain other programs.

Current wording

We expect research and development expenses in the third quarter of 2025 to be lower than those in the second quarter of this year due to the pause in our two Phase 3 clinical trials for zaltenibart and reductions in development activities across certain other programs.

Previous wording

We expect selling, general and administrative expenses, exclusive of any one-time restructuring expenses, in the second quarter of 2025 to be comparable to those in the first quarter of this year.

Current wording

We expect selling, general and administrative expenses in the third quarter of 2025 to be comparable to those in the second quarter of this year.

Previous wording

Contractual interest expense is comprised of cash interest paid during the year and the net change in accrued interest. Interest on our OMIDRIA royalty obligation is calculated under the effective interest method and represents a portion of the royalties remitted by Rayner to our administrative agent, Wilmington Savings Fund Society, FSB, along with principal. Pass through interest paid to DRI is offset by non-cash remeasurement adjustments taken to properly reflect the OMIDRIA royalty obligation for changes in probable cash flows on our future expected Rayner royalties. Debt discounts on the 2026 Notes are accretive whereas the unrealized gain on the 2026 Note Repurchase Transaction is treated as a premium on the Term Loan and deducted from contractual interest expense.

Current wording

Interest on our OMIDRIA royalty obligation is calculated under the effective interest method and represents a portion of the royalties remitted by Rayner to our administrative agent, Wilmington Savings Fund Society, FSB, along with principal. Pass through interest paid to DRI is offset by non-cash remeasurement adjustments taken to properly reflect the OMIDRIA royalty obligation for changes in probable cash flows on our future expected Rayner royalties.

Previous wording

For the three months ended March 31, 2025, interest expense decreased $4.6 million compared to the same period in 2024. This decrease was primarily due to (i) non-cash remeasurement costs of our OMIDRIA royalty obligation to reflect the change in the future expected OMIDRIA cash flows from Rayner and (ii) decreased contractual interest expense on our 2026 Notes due to repurchasing $118.1 million of principal amount outstanding (approximately 75% of par value) in the 2026 Note Repurchase Transaction. These expenses were offset by an increase in pass through interest remitted to DRI through our administrative agent, resulting from DRI purchasing an expanded interest in all U.S. OMIDRIA royalties through 2031 for $115.5 million in February 2024, which consequentially increased the OMIDRIA royalty obligation by the same amount in the prior year.

Current wording

For the six months ended June 30, 2025, interest expense decreased $13.8 million compared to the same period in 2024. This decrease was primarily due to non-cash remeasurement costs of our OMIDRIA royalty obligation to reflect the change in the future expected OMIDRIA cash flows from Rayner of $13.7 million and decreased contractual interest expense on our 2026 Notes of $3.1 million due to the overall $192.2 million reduction in principal as a result of the repurchase of notes in June 2024 and the exchange of 2026 Notes for 2029 Notes in May 2025. These expenses were partially offset by increases in interest expense on the Term Loan as we incurred a full six months of interest expense compared to the prior year period and due to incurring new interest on the 2029 Notes issued in May 2025.

Previous wording

We expect that interest expense for the second quarter of 2025 will be higher compared to the first quarter, under the assumption that there is no remeasurement adjustment to the OMIDRIA royalty obligation.

Current wording

We expect that interest expense for the third quarter of 2025 will be higher compared to the second quarter, under the assumption that there is no remeasurement adjustment to the OMIDRIA contract royalty obligation.

Previous wording

Interest and other income decreased $2.4 million for the three months ended March 31, 2025 as compared to the same period in 2024 primarily due to holding a lower average cash and investment balance than in the prior year period.

Current wording

Interest and other income decreased $2.0 million and $4.3 million, respectively, for the three and six months ended June 30, 2025 as compared to the same periods in 2024 primarily due to holding a lower average cash and investment balance than in the prior year period.

Previous wording

We expect interest and other income for the second quarter of 2025 to be lower compared to those in the first quarter of this year due to lower average cash and investment balances.

Current wording

We expect interest and other income for the third quarter of 2025 to be comparable to the second quarter of this year.

Previous wording

As of March 31, 2025, we had cash, cash equivalents and short-term investments of $52.4 million available to fund operations and to service debt. Our loss for the three months ended March 31, 2025 and 2024 was $33.5 million and $37.2 million, respectively. For the three months ended March 31, 2025, our cash used in operations was $35.8 million and included a net loss for the year of $33.5 million.

Current wording

As of June 30, 2025, we had cash, cash equivalents, and short-term investments of $28.7 million. For the six months ended June 30, 2025, our cash provided by operations was $57.8 million and included a net loss for the period of $58.9 million.

Previous wording

As of March 31, 2025, we had cash, cash equivalents and short-term investments of $52.4 million. For the three months ended March 31, 2025, our cash used in operations was $35.8 million and included a net loss for the quarter of $33.5 million. Pursuant to a covenant in the Credit Agreement entered on June 3, 2024, we must maintain $25.0 million of unrestricted cash, cash equivalents and short-term investments at all times.

Current wording

Pursuant to a covenant in the Credit Agreement entered into on June 3, 2024, we must maintain $25.0 million of unrestricted cash, cash equivalents and short-term investments at all times. We have maintained a balance of unrestricted cash, cash equivalents, and short-term investments greater than $25.0 million and at no time during the quarter or through the date of issuance of these condensed consolidated financial statements have we been in violation of any of our debt covenants.

Previous wording

In recent years, Omeros has incurred net losses from continuing operations and negative cash flows from operations. The recurring losses, in combination with our cash and investment balances as of March 31, 2025, along with the maturity of our remaining 2026 Notes on February 15, 2026, raise substantial doubt about our ability to continue as a going concern through one year from the issuance of the Company's condensed consolidated financial statements.

Current wording

In recent years, Omeros has incurred net losses from continuing operations and negative cash flows from operations.

Previous wording

To raise capital for our operations, we may pursue public and private offerings of our equity securities, additional debt transactions or restructurings, future royalty sales, or other strategic transactions, which may include licensing or selling a portion or all of one or more of our existing technologies. However, pursuing debt financings, certain equity offerings or other strategic transactions may result in mandatory prepayments of the Term Loan to the Credit Agreement. See “Note 6 — Debt” in the Notes to the Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q for further details.

Current wording

As we currently do not have an ongoing source of revenue sufficient to cover our operating costs, we will need to raise additional capital to accomplish our business plan. To raise capital for our operations, we may pursue public and private offerings of our equity securities, additional debt transactions or restructurings, future royalty sales, or other strategic transactions, which may include licensing or selling a portion or all of one or more of our existing technologies. However, pursuing debt financings, certain equity offerings or other strategic transactions may result in mandatory prepayments of the Term Loan to the Credit Agreement. (See “Note 6 — Debt” for further details).

Previous wording

We also have a sales agreement pursuant to an at the market (“ATM”) equity offering facility through which we may, from time to time, offer and sell shares of our common stock equaling an aggregate amount of up to $150.0 million. Subsequent to March 31, 2025, we received $3.5 million in net proceeds from sale of our common stock through the ATM facility.

Current wording

Further, we have a sales agreement pursuant to an at-the-market (“ATM”) equity offering facility through which we may, from time to time, offer and sell shares of our common stock equaling an aggregate amount of up to $150.0 million. During the six months ended June 30, 2025, we received $6.4 million of net proceeds from the sale of our common stock through the ATM facility and have received $2.1 million subsequent to June 30, 2025.

Previous wording

Financing Activities. Net cash used by financing activities decreased $100.3 million for the three months ended March 31, 2025 as compared to the same period in the prior year. The decrease was primarily due to prior year activities related to (i) receiving $115.5 million in cash from DRI related to the sale of expanded OMIDRIA royalties in February 2024, (ii) repurchases of $11.9 million in common stock and (iii) payments to DRI of $3.4 million in royalties.

Current wording

Financing Activities. Net cash provided by financing activities for the six months ended June 30, 2025 decreased by $75.1 million primarily due to prior year activities related to (i) receiving $115.5 million in cash from DRI related to the sale of expanded OMIDRIA royalties in February 2024, (ii) repurchasing certain of our outstanding 2026 Notes for $27.5 million in cash, (iii) repurchasing $11.9 million in common stock and (iv) payments to DRI of $3.4 million in royalties. These prior year activities were partially offset by current year payments of $2.8 million related to debt issuance costs pertaining to the Convertible Note Exchange.

Previous wording

Our lease for our office and laboratory space ends in November 2027. We have two options to extend the lease term by five years each. In addition, we carry various finance lease obligations for laboratory and office equipment. As of March 31, 2025, the remaining aggregate non-cancelable rent payable under the initial term of the lease, excluding common area maintenance and related operating expenses, is $18.5 million.

Current wording

Our lease for our office and laboratory space ends in November 2027. We have two options to extend the lease term by five years each. In addition, we carry various finance lease obligations for laboratory and office equipment. As of June 30, 2025, the remaining aggregate non-cancelable rent payable under the initial term of the lease, excluding common area maintenance and related operating expenses, is $16.8 million.

Previous wording

There have not been any material changes in our critical accounting policies and significant judgments and estimates as disclosed in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in our Annual Report on Form 10-K for the year ended December 31, 2024, which was filed with the SEC on March 31, 2025.

Current wording

There have not been any material changes in our critical accounting policies and significant judgments and estimates as disclosed in Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included in our Annual Report on Form 10-K for the year ended December 31, 2024, which was filed with the SEC on March 31, 2025 except as what we have disclosed in the notes to our financial statements regarding embedded derivatives. For further details see “Note 2 — Significant Accounting Policies” in the Notes to the Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q.
Rearranged current paragraphs (3)

Current report — wording carried from elsewhere

On May 14, 2025, we completed with a limited number of holders of the 2026 Notes the exchange (the “Convertible Note Exchange”) of $70.8 million aggregate principal amount of our 2026 Notes on a one-for-one basis for newly issued convertible senior notes maturing on June 15, 2029 (the “2029 Notes”).

Current report — wording carried from elsewhere

We retain all potential future value of up to $92.6 million of the capped call purchased in connection with the issuance of the 2026 Notes covering all shares underlying the aggregate principal amount of 2026 Notes issued originally.

Current report — wording carried from elsewhere

Contractual interest expense is comprised of cash interest paid during the year and the net change in accrued interest. Amortization of debt discounts, premiums, and issuance costs are reflected as non-cash interest expense. Debt discounts on the 2026 Notes and 2029 Notes are accretive whereas the premium on the Term Loan is deducted from contractual interest expense.
Rearranged previous paragraphs (3)

Previous report — wording carried elsewhere

As a result of the OMIDRIA divestiture, we recorded an OMIDRIA contract royalty asset on our balance sheet. The results of OMIDRIA activities are classified as discontinued operations in our condensed consolidated statements of operations and comprehensive income (loss) and excluded from continuing operations for all periods presented. See “Note 8 — OMIDRIA Royalty Obligation” in the Notes to the Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q.

Previous report — wording carried elsewhere

See “Note 6 — Debt” in the Notes to Condensed Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q for further details.

Previous report — wording carried elsewhere

As we currently do not have an ongoing source of revenue sufficient to cover our operating costs, we will need to raise additional capital to accomplish our business plan.