// company-profile

Omeros Corp

OMER
ExchangeNasdaqSectorPharmaceutical PreparationsInc.WAFilings47Insiders11
// api This Omeros Corp insider-trading data is served live by the Form4API insider trading API. Get the same data via API.

// activity-summary

Recent insider activity is bullish. Over the last 30 days, 7 insiders purchased shares. Buying was led by Bumol Thomas F..

// 90-day insight

Over the last 90 days, Omeros Corp insiders bought $81K across 9 transactions with no open-market sales.

  • Most active insider: Cable Thomas J. with 4 transactions totaling $168K.
  • Largest single sale: $87K by Cable Thomas J. on May 22, 2026.
  • 100% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.

Activity skews bullish — buys outpace sales.

Institutional Ownership

Top 13F-HR holders of Omeros Corp as of 2026-03-31

↓ decreasing
Total reported AUM
$290.3M
QoQ change
-47.2%
Reporting period
2026-03-31
#1
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$31.5M
3.0M shares
#2
BlackRock, Inc.
CIK 2012383
$29.2M
2.8M shares
#3
BlackRock, Inc.
CIK 2012383
$21.7M
2.1M shares

Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jun 18, 2026Bumol Thomas F.OMER
Award
15,000$0.00$0K
Jun 18, 2026Cable Thomas J.OMER
Award
15,000$0.00$0K
Jun 18, 2026HANISH ARNOLD COMER
Award
15,000$0.00$0K
Jun 18, 2026Demopulos Peter A MDOMER
Award
15,000$0.00$0K
Jun 18, 2026Perkinson Diana T.OMER
Award
15,000$0.00$0K

45 more transactions hidden

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