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Public ownership evidence

Omeros Corporation (OMER) Ownership Disclosures

Read OMER insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-14T02:54:47.600Z

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2026-09-252026-09-23Borges David J.S10,000Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-09-23 and its public availability date is 2026-09-25. Subtracting those calendar dates gives 2 days of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001437749-26-031169 ↗SEC 0001437749-26-031169 ↗SEC 0001437749-26-029427 ↗

Recent Form 4 activity

Inspect all 15 displayed rows: Recent Form 4 activity

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2026-09-252026-09-23Borges David J.S10,000Not reported
2026-09-252026-09-22Borges David J.S10,000Not reported
2026-09-022026-08-31Cancelmo Peter BS25,000Not reported
2026-09-022026-08-28Cancelmo Peter BS25,000Not reported
2026-08-292026-08-27HANISH ARNOLD CS5,000Not reported
2026-08-292026-08-27HANISH ARNOLD CS5,000Not reported
2026-08-292026-08-26HANISH ARNOLD CS5,000Not reported
2026-08-262026-08-24Borges David J.S906Not reported
2026-08-262026-08-21Borges David J.S10,000Not reported
2026-08-222026-08-20Cable Thomas J.S15,000Not reported
2026-08-192026-08-12Schocken Joseph LA30,000Not reported
2026-08-182026-08-13Borges David J.S5,000Not reported
2026-07-252026-07-22Demopulos Gregory A MDA1,000,000Not reported
2026-07-252026-07-22Cancelmo Peter BA105,000Not reported
2026-07-252026-07-22Borges David J.A105,000Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

Inspect all 50 displayed rows: Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

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B. Riley Wealth Advisors, Inc.2025-03-312026-08-2910,760$88,447None
OPTIMIZE FINANCIAL INC.2026-06-302026-08-2838,274$363,986None
Advisors Asset Management, Inc.2020-06-302026-08-2821,335$314,051None
Corient Private Wealth LP2026-06-302026-08-28659,730$6,274,033None
Advisors Asset Management, Inc.2019-12-312026-08-2622,082$311,135None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-2615,400$146,454None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-2575,730$720,192None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25720,192$75,730,000None
Advisors Asset Management, Inc.2020-03-312026-08-2221,350$285,450None
Advisors Asset Management, Inc.2019-03-312026-08-1924,697$428,987None
Advisors Asset Management, Inc.2019-09-302026-08-1922,869$373,451None
Advisors Asset Management, Inc.2019-06-302026-08-1924,061$377,517None
Corient Private Wealth LP2026-06-302026-08-18659,730$6,274,033None
SEI INVESTMENTS CO2026-06-302026-08-1512,072$114,805None
SEI INVESTMENTS CO2026-06-302026-08-151,099$10,420None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15300$2,853None
Rafferty Asset Management, LLC2026-06-302026-08-1519,474$185,198None
Susquehanna Portfolio Strategies, LLC2026-06-302026-08-1541,755$397,090None
NFSG Corp2026-06-302026-08-1546,210$439,457None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15604,633$5,750,060None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15604,633$5,750,060None
IFG Advisory, LLC2026-06-302026-08-1550$476None
Diametric Capital, LP2026-06-302026-08-1533,010$313,925None
Caption Management, LLC2026-06-302026-08-15364,100$3,462,591Put
Caption Management, LLC2026-06-302026-08-15120,400$1,145,004Call
Caption Management, LLC2026-06-302026-08-15130,000$1,236,300None
OSAIC HOLDINGS, INC.2026-06-302026-08-15135$1,284None
OSAIC HOLDINGS, INC.2026-06-302026-08-157,860$74,748None
Squarepoint Ops LLC2026-06-302026-08-1555,030$523,335None
MetLife Investment Management, LLC2026-06-302026-08-1543,510$413,780None
Engineers Gate Manager LP2026-06-302026-08-1514,536$138,237None
JANE STREET GROUP, LLC2026-06-302026-08-1520,166$191,779None
JANE STREET GROUP, LLC2026-06-302026-08-15125,400$1,192,554Put
JANE STREET GROUP, LLC2026-06-302026-08-15200,300$1,904,853Call
LMR Partners LLP2026-06-302026-08-15145,600$1,384,656Put
Legal & General Group Plc2026-06-302026-08-1525,291$240,518None
Legal & General Group Plc2026-06-302026-08-1512,394$117,867None
Legal & General Group Plc2026-06-302026-08-157,001$66,580None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15971,300$9,237,063Call
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15918,700$8,736,837Put
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-15314,507$2,990,962None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1510,687$101,633None
Ancora Advisors LLC2026-06-302026-08-15168,750$1,604,812None
Bridgefront Capital, LLC2026-06-302026-08-1515,773$150,001None
DeepCurrents Investment Group LLC2026-06-302026-08-1519,971$189,924None
MILLENNIUM MANAGEMENT LLC2026-06-302026-08-15343,839$3,269,909None
Atom Investors LP2026-06-302026-08-1523,945$227,717None
Balyasny Asset Management L.P.2026-06-302026-08-1583,558$794,637None
JONES FINANCIAL COMPANIES LLLP2026-06-302026-08-15393$3,407None
AMERIPRISE FINANCIAL INC2026-06-302026-08-15116,536$1,108,257None

90-day public filing window, up to 50 source positions.

B. Riley Wealth Advisors, Inc. ↗OPTIMIZE FINANCIAL INC. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Advisors Asset Management, Inc. ↗VIRGINIA RETIREMENT SYSTEMS ET Al ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

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Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.