Key facts
- This page summarizes David J. Borges's Form 4 filing for OMEROS CORP (OMER).
- 8 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 25 Aug 2026, 17:40.
David J. Borges - 21 Aug 2026 Form 4 Insider Report for OMEROS CORP (OMER)
- Reporting relationship
- VP, Finance & CAO
- Issuer ticker
- OMER
- Reported as of
- 21 Aug 2026
- Net transaction value
- -$206,805
- SEC form
- 4
- Accepted by SEC
- 25 Aug 2026, 17:40:16 UTC
- Prior SEC filing
- 17 Aug 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Peter B. Cancelmo, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
David J. Borges filed Form 4 for OMEROS CORP (OMER) on 25 Aug 2026.
Change
- Previous filing in this sequence was filed on 17 Aug 2026.
- Current net transaction value: -$206,805.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0002005787
Primary reporting owner
Borges David J.
- Relationship
- VP, Finance & CAO
- Address
- 201 ELLIOTT AVENUE WEST, SEATTLE
- Signature
- /s/ Peter B. Cancelmo, Attorney-in-Fact
- Signature date
- 25 Aug 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
OMER
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +5,906
- Change %
- Price
- $3.93*
- Shares after
- 5,906
- Date
- 21 Aug 2026
- Ownership
- Direct
OMER
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +4,094
- Change %
- +69%
- Price
- $2.94*
- Shares after
- 10,000
- Date
- 21 Aug 2026
- Ownership
- Direct
OMER
transaction
Common Stock
Sale
- Transaction value
- $189,500
- Shares
- -10,000
- Change %
- -100%
- Price
- $18.95
- Shares after
- 0
- Date
- 21 Aug 2026
- Ownership
- Direct
- Footnotes
- F1
OMER
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +906
- Change %
- Price
- $2.94*
- Shares after
- 906
- Date
- 24 Aug 2026
- Ownership
- Direct
OMER
transaction
Common Stock
Sale
- Transaction value
- $17,305
- Shares
- -906
- Change %
- -100%
- Price
- $19.10
- Shares after
- 0
- Date
- 24 Aug 2026
- Ownership
- Direct
- Footnotes
- F1
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
OMER
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -5,906
- Change %
- -39%
- Price
- $0.000000*
- Shares after
- 9,094
- Date
- 21 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 5,906
- Exercise price
- $3.93
- Footnotes
- F2
OMER
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -4,094
- Change %
- -16%
- Price
- $0.000000*
- Shares after
- 20,906
- Date
- 21 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 4,094
- Exercise price
- $2.94
- Footnotes
- F3
OMER
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -906
- Change %
- -4.3%
- Price
- $0.000000*
- Shares after
- 20,000
- Date
- 24 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 906
- Exercise price
- $2.94
- Footnotes
- F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Rule 10b5-1 trading plan
These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.
Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).
Explanation of responses 3 footnotes
Footnote F1
Open market sale pursuant to a previously established Rule 10b5-1 trading plan adopted by the reporting person on February 10, 2026. The trading schedule, including sale periods and the number of shares to be sold, was established at the time of the trading plan's adoption in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934, as amended.
Footnote F2
This option vests and becomes exercisable over 48 equal monthly installments, with a vesting commencement date of April 1, 2022. Installments vest and become exercisable on each monthly anniversary thereafter.
Footnote F3
This option vests and becomes exercisable over 48 equal monthly installments, with a vesting commencement date of April 1, 2023. Installments vest and become exercisable on each monthly anniversary thereafter.