OMEROS CORP (OMER) Insider Trading & SEC Filings
Last SEC filing
OMEROS CORP (OMER) has filed 11 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-25. Insider sales over the same period: 1 transactions worth $87K. 5 Form 8-K material event filings were reported by OMER in the last 90 days. 1 Form 144 notice of proposed sale was filed for OMER stock. InsiderAlpha tracks every OMER SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About OMEROS CORP (OMER)
OMEROS CORP trades under the ticker OMER. InsiderAlpha tracks 24 primary SEC Form 4 filings from 10 reporting insiders for OMER since 2025, sourced directly from SEC EDGAR.
| Sector | Health Care insider trading |
|---|---|
| SIC classification | Pharmaceutical Preparations (SIC 2834) |
| SEC CIK | 0001285819 |
90-Day SEC Filing Activity
| Insider sales (90d) | 1 ($87K) |
|---|---|
| Form 4 filings (90d) | 11 |
| Form 8-K filings (90d) | 5 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-07-25 |
Recent OMER Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Thomas J. Cable | Director | S - Open-market sale [10b5-1] | 7.5K | $11.61 | $87K | SEC | |
| Thomas J. Cable | Director | M - Option exercise [10b5-1] | 7.5K | $10.84 | $81K | SEC | |
| Gregory A. Md Demopulos | Chairman, CEO & President | M - Option exercise | 400.0K | $10.27 | $4.11M | SEC | |
| Gregory A. Md Demopulos | Chairman, CEO & President | F - Tax withholding / forfeiture | 357.7K | $11.93 | $4.27M | SEC | |
| David J. Borges | VP, Finance & CAO | M - Option exercise | 30.0K | $3.06 | $92K | SEC | |
| David J. Borges | VP, Finance & CAO | S - Open-market sale | 30.0K | $12.31 | $369K | SEC | |
| David J. Borges | VP, Finance & CAO | S - Open-market sale | 30.0K | $12.72 | $382K | SEC | |
| Gregory A. Md Demopulos | Chairman, CEO President | G - Bona-fide gift | 600.0K | $0.00 | - | SEC | |
| Gregory A. Md Demopulos | Chairman, CEO President | G - Bona-fide gift | 300.0K | $0.00 | - | SEC | |
| Gregory A. Md Demopulos | Chairman, CEO President | G - Bona-fide gift | 300.0K | $0.00 | - | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for OMEROS CORP (OMER). Updated in real time as new filings are submitted to the SEC.
Most-Active OMER Insiders - Last 90 Days
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Thomas J. Cable | 4 | $168K |
| Arnold C. Hanish | 1 | - |
| Thomas F. Bumol | 1 | - |
| Peter A. Md Demopulos | 1 | - |
| Leroy E. Md Phd Hood | 1 | - |
Recent OMER Form 8-K Material Events
Recent OMER Form 144 Notices of Proposed Sale
- - - [SEC]
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
Recent Insider Filings
- - Gregory A. Md Demopulos (Chairman, CEO & President)
- - Peter B. Cancelmo (VP, General Counsel)
- - David J. Borges (VP, Finance & CAO)
- - Rajiv Shah (Director)
- - Diana T. Perkinson (Director)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in OMER insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
OMER Insider Trading - FAQ
- What is the latest insider trade for OMER?
- OMEROS CORP (OMER) had 11 insider filings in the last 90 days, with the most recent on 2026-07-25. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying OMER stock?
- 0 insider purchases of OMER were filed in the last 90 days.
- How many insiders are selling OMER stock?
- 1 insider sale of OMER was filed in the last 90 days, totaling $87K.
- Where can I see OMER SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks OMER Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care Companies with Insider Activity
Other companies in the InsiderAlpha index with a significant SEC Form 4 insider-trading footprint:
- $ONCO Onconetix, Inc.
- $OPGN CapForce Inc.
- $OSCR Oscar Health, Inc.
- $OTLC Oncotelic Therapeutics, Inc.
- $PEPG PepGen Inc.
- $PHGE BiomX Inc.
- $PLSE PULSE BIOSCIENCES, INC.
- $PMHS Polomar Health Services, Inc.
- $PRCT PROCEPT BioRobotics Corp
- $PRLD Prelude Therapeutics Inc
Related Companies - Recent Insider Activity
- UNITED THERAPEUTICS Corp (UTHR)
- Liquidia Corp (LQDA)
- BeOne Medicines Ltd. (ONC)
- PERRIGO Co plc (PRGO)
- Processa Pharmaceuticals, Inc. (PCSA)
- Nuvalent, Inc. (NUVL)
- CYTOKINETICS INC (CYTK)
- Elanco Animal Health Inc (ELAN)
- Avalo Therapeutics, Inc. (AVTX)
- NATURES SUNSHINE PRODUCTS INC (NATR)
Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live OMER dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.