Omeros cuts 2029 convertible debt by $30.5M

Omeros Corporation reports that on July 20, 2026 it completed the repurchase of approximately $14.5 million aggregate principal amount of its 9.50% Convertible Senior Notes due 2029 under previously disclosed privately negotiated agreements.

Rhea-AI Filing Summary

Omeros Corporation reports that on July 20, 2026 it completed the repurchase of approximately $14.5 million aggregate principal amount of its 9.50% Convertible Senior Notes due 2029 under previously disclosed privately negotiated agreements. The total purchase price, inclusive of accrued and unpaid interest and all other obligations, was approximately $29.0 million. Omeros had previously repurchased $16.0 million principal amount of the same Notes from the same holders. In total, the company has now repurchased and retired $30.5 million aggregate principal amount of these Notes, with approximately $40.3 million principal amount remaining outstanding.

Filing Explained

The July 20 Form 8-K reports that the repurchase was completed: Omeros paid approximately $29.0 million for the Notes, while its latest reported March 31, 2026 cash and equivalents were $1.906 million alongside $133.410 million of short-term investments; the filing does not state its post-repurchase cash balance.

8-K Event Classification

Item 8.01 — Other Events

1 item

Item 8.01 Other Events Other

Voluntary disclosure of events the company deems important to shareholders but not covered by other items.

Key Figures

Coupon Rate: 9.50% Latest Principal Repurchased: $14.5 million Latest Purchase Price: $29.0 million +3 more

6 metrics

Coupon Rate 9.50% Interest rate on Convertible Senior Notes due 2029

Latest Principal Repurchased $14.5 million Aggregate principal amount of Notes repurchased on July 20, 2026

Latest Purchase Price $29.0 million Total purchase price including accrued and unpaid interest and all other obligations

Previously Repurchased Principal $16.0 million Principal amount of Notes repurchased in earlier privately negotiated agreements

Total Principal Retired $30.5 million Total aggregate principal amount of Notes repurchased and retired to date

Principal Remaining Outstanding $40.3 million Principal amount of Notes remaining outstanding after repurchases

Key Terms

9.50% Convertible Senior Notes due 2029, privately negotiated agreements, aggregate principal amount, accrued and unpaid interest

4 terms

9.50% Convertible Senior Notes due 2029 financial

"holders of its 9.50% Convertible Senior Notes due 2029 (the “Notes”)"

privately negotiated agreements financial

"entered into privately negotiated agreements with certain holders of its 9.50%"

Privately negotiated agreements are contracts made directly between specific parties rather than through a public market or auction, covering things like sales of shares, assets, or loans. They matter to investors because these deals can change who controls a company or its cash flow quickly but usually offer less price transparency, fewer public disclosures and lower immediate liquidity—like buying an item from a neighbor instead of from a store, you negotiate terms privately and may get a different price and fewer protections.

aggregate principal amount financial

"completed the repurchase of approximately $14.5 million aggregate principal amount of Notes"

The aggregate principal amount is the total amount of money borrowed through a bond or loan that the borrower promises to repay. It’s like the original price tag on a loan or bond, showing how much money is involved in the deal. This number matters because it indicates the size of the debt and helps investors understand the scale of the borrowing.

accrued and unpaid interest financial

"total purchase price, inclusive of accrued and unpaid interest and all other obligations"

Accrued and unpaid interest is the interest that has built up on a loan or debt but hasn't been paid yet. It's like owing your friend money for a favor over time—you're expected to pay it later, even though you haven't paid it yet. This matters because it shows how much you owe beyond the original amount borrowed.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What debt did Omeros (OMER) repurchase on July 20, 2026?

Omeros repurchased approximately $14.5 million aggregate principal amount of its 9.50% Convertible Senior Notes due 2029 on July 20, 2026, under previously disclosed privately negotiated agreements with certain noteholders.

How much of Omeros (OMER) 9.50% Convertible Senior Notes due 2029 has been retired?

Omeros has repurchased and retired a total of $30.5 million aggregate principal amount of its 9.50% Convertible Senior Notes due 2029, combining the latest transaction with earlier privately negotiated repurchases.

What purchase price did Omeros (OMER) pay in the latest note repurchase?

For the July 20, 2026 transaction, Omeros paid a total purchase price of approximately $29.0 million, which included accrued and unpaid interest and all other obligations related to the $14.5 million principal repurchased.

How much of Omeros (OMER) convertible notes remains outstanding after the repurchases?

After completing the described repurchases, approximately $40.3 million principal amount of Omeros’ 9.50% Convertible Senior Notes due 2029 remains outstanding, with the remainder having been repurchased and retired.

What are the key terms of the Omeros (OMER) notes involved in these transactions?

The securities involved are Omeros’ 9.50% Convertible Senior Notes due 2029. They bear interest at 9.50% and are senior convertible obligations of the company with a stated maturity in 2029.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/20/2026 - 05:05 PM Accepted by SEC EDGAR 07/20/2026 - 05:05 PM Learn about SEC filing dates

false 0001285819 0001285819 2026-07-20 2026-07-20

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): July 20, 2026

OMEROS CORPORATION

(Exact name of Registrant as Specified in Its Charter)

Washington	001-34475	91-1663741
(State or Other Jurisdiction of Incorporation)	(Commission File Number)	(IRS Employer Identification No.)
201 Elliott Avenue West  Seattle, WA		98119
(Address of Principal Executive Offices)		(Zip Code)

Registrant’s Telephone Number, Including Area Code: (206) 676-5000

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8‑K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities Registered Pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, par value $0.01 per share	OMER	The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 under the Securities Act of 1933 (17 CFR 230.405) or Rule 12b-2 under the Securities Exchange Act of 1934 (17 CFR 240.12b-2).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01 Other Events.

As previously disclosed, on July 2, 2026, Omeros Corporation (the “Company”) entered into privately negotiated agreements with certain holders of its 9.50% Convertible Senior Notes due 2029 (the “Notes”) under which the Company agreed to repurchase a portion of the outstanding Notes following completion of an averaging period. The Company completed the repurchase of approximately $14.5 million aggregate principal amount of Notes on July 20, 2026, for a total purchase price, inclusive of accrued and unpaid interest and all other obligations, of approximately $29.0 million. 

The Company previously disclosed the repurchase of $16.0 million principal amount of Notes pursuant to privately negotiated agreements with the same holders referenced above. In total, the Company has repurchased and retired $30.5 million aggregate principal amount of Notes. Approximately $40.3 million principal amount of Notes remains outstanding following completion of the repurchases.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	OMEROS CORPORATION
Date: July 20, 2026	By:	/s/ Gregory A. Demopulos
		Gregory A. Demopulos, M.D.
		President, Chief Executive Officer and
		Chairman of the Board of Directors

Filing Exhibits & Attachments

4 documents

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA 3.5 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE 11.2 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE 15.0 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE 11.3 KB