What is the net share effect of the reported OMER transactions for Thomas J. Cable?

The transaction summary shows a net-sell of 15,000 shares, with 15,000 shares sold and 15,000 shares acquired through option exercises, resulting in a net disposition of 15,000 shares.

Omeros director sells 15,000 shares after option exercise

Q: What did OMER (Omeros Corp) director Thomas J. Cable report on this Form 4?

He reported exercising stock options for 15,000 shares of Common Stock and selling 15,000 shares of OMER on 2026-08-20 as part of an option exercise-and-sale sequence.

Q: How many OMER shares did Thomas J. Cable sell in this Form 4?

He sold 15,000 shares of Common Stock of OMER on 2026-08-20, according to the Form 4 transaction table.

Q: What was the sale price of the OMER shares in this Form 4?

The reported sale price was a weighted average of $18.4515 per share for 15,000 shares, with individual trades executed between $18.23 and $18.72 per share.

Q: Was the OMER Form 4 transaction by Thomas J. Cable part of a Rule 10b5-1 plan?

The Form 4 indicates the Rule 10b5-1 checkbox is not checked (aff_10b5_one is false), so the filing does not state that these transactions were effected under a Rule 10b5-1 trading plan.

OMEROS CORP (OMER) director Thomas J. Cable reported an option exercise-and-sale transaction.

Filing Impact

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Filing Sentiment

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Sentiment and the balance of points

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Form Type

Rhea-AI Filing Summary

OMEROS CORP (OMER) director Thomas J. Cable reported an option exercise-and-sale transaction. He exercised 15,000 Stock Options (Rights to Buy) for 15,000 shares of Common Stock at exercise prices of $2.00 and $3.93 per share, then sold 15,000 shares at a weighted average price of $18.4515 per share in multiple trades ranging from $18.23 to $18.72.

Insider Trade Summary

Exercise and Sale: 15,000 shares ($232K approx. pre-tax spread)

Exercise and Sale 5 txns

Insider Cable Thomas J.

Role Director

Sold 15,000 shs ($277K)

Approx. gross sale proceeds $277K

Approx. exercise cost $44K

Approx. pre-tax spread $232K

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy)	7,500	$0.00	$0.00
Exercise	Stock Option (Right to Buy)	7,500	$0.00	$0.00
Exercise	Common Stock	7,500	$2.00	$15K
Exercise	Common Stock	7,500	$3.93	$29K
Sale	Common Stock ^F1	15,000	$18.4515	$277K

Holdings After Transaction: Stock Option (Right to Buy) — 0 contracts (Direct); Common Stock — 35,067 shares (Direct)

Footnotes (1)

F1. This transaction was executed in multiple trades at prices ranging from $18.23 to $18.72. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions referenced in this footnote were effected upon request to the SEC staff, the issuer, or a security holder of the issuer.

Key Figures

Shares sold: 15,000 shares of Common Stock Weighted average sale price: $18.4515 per share Option exercise shares: 7,500 shares at $2.00; 7,500 shares at $3.93 +2 more

5 metrics

Shares sold 15,000 shares of Common Stock Sale transaction on 2026-08-20

Weighted average sale price $18.4515 per share Sale of 15,000 shares, trades from $18.23 to $18.72

Option exercise shares 7,500 shares at $2.00; 7,500 shares at $3.93 Stock Option (Right to Buy) exercises on 2026-08-20

Net shares (buy/sell) 15,000 shares net-sell transactionSummary netBuySellShares and netBuySellDirection

Exercise count 2 derivative exercises, 15,000 shares transactionSummary exerciseCount and exerciseShares

Key Terms

Stock Option (Right to Buy), derivative security, weighted average sales price

3 terms

Stock Option (Right to Buy) financial

"security_title "Stock Option (Right to Buy)""

derivative security financial

"transaction_code_description "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

weighted average sales price financial

"The price reported above reflects the weighted average sales price."

FAQ

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

What did OMER (Omeros Corp) director Thomas J. Cable report on this Form 4?

He reported exercising stock options for 15,000 shares of Common Stock and selling 15,000 shares of OMER on 2026-08-20 as part of an option exercise-and-sale sequence.

How many OMER shares did Thomas J. Cable sell in this Form 4?

He sold 15,000 shares of Common Stock of OMER on 2026-08-20, according to the Form 4 transaction table.

What was the sale price of the OMER shares in this Form 4?

The reported sale price was a weighted average of $18.4515 per share for 15,000 shares, with individual trades executed between $18.23 and $18.72 per share.

What stock options did Thomas J. Cable exercise for OMER shares?

He exercised two Stock Option (Right to Buy) positions covering 7,500 shares at $2.00 per share and 7,500 shares at $3.93 per share, receiving a total of 15,000 OMER Common Stock shares.

Was the OMER Form 4 transaction by Thomas J. Cable part of a Rule 10b5-1 plan?

The Form 4 indicates the Rule 10b5-1 checkbox is not checked (aff_10b5_one is false), so the filing does not state that these transactions were effected under a Rule 10b5-1 trading plan.

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

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Available on EDGAR 08/21/2026 - 05:34 PM EDT Accepted by SEC EDGAR 08/21/2026 - 05:34 PM EDT

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Cable Thomas J.

(Last)

(First)

(Middle)

201 ELLIOTT AVENUE WEST

(Street)

SEATTLE

WASHINGTON

98119

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
OMEROS CORP [ OMER ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/20/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	08/20/2026		M		7,500	A	$2	42,567	D
Common Stock	08/20/2026		M		7,500	A	$3.93	50,067	D
Common Stock	08/20/2026		S		15,000	D	$18.4515⁽¹⁾	35,067	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (Right to Buy)	$2	08/20/2026		M			7,500	06/22/2023	06/17/2032	Common Stock	7,500	$0	0	D
Stock Option (Right to Buy)	$3.93	08/20/2026		M			7,500	06/22/2023	09/21/2032	Common Stock	7,500	$0	0	D

Explanation of Responses:

1. This transaction was executed in multiple trades at prices ranging from $18.23 to $18.72. The price reported above reflects the weighted average sales price. The reporting person hereby undertakes to provide full information regarding the number of shares and prices at which the transactions referenced in this footnote were effected upon request to the SEC staff, the issuer, or a security holder of the issuer.

	/s/ Peter B. Cancelmo, Attorney-in-Fact	08/21/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR