AI summary pending
View Full Filing (SEC EDGAR)Omeros CORP
$19.12+2%
+$122.7M
Net Activity
+30.49% total shares
Institutions Holding
177
Popularity Rank
#3316
Avg Weight
0.03%
Total Value
$473.2M
177 institutions currently hold OMER, with 112 net buyers and 66 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
66
Net Buying Institutions
112
Top 5 by Value
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Across its top 20 institutional holders, OMER's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 7/100, avg. turnover score 45/100).
OMER ranks #3316 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
177 institutions disclose a position in OMER, but none treat it as a major bet — even Clutterbuck Capital Management LLC, its most concentrated holder, allocates just 2.4% of its own portfolio to it.
B. Riley Wealth Advisors, Inc. has added to its OMER position for two straight quarters, increasing it by $104.9K to reach $216.5K today.
NFSG Corp has trimmed its OMER position for two straight quarters, cutting it by $469.4K while still holding $34.5K.
OMER is up 2% today, and institutions have been net buyers of $122.7M this quarter — today's price move and the underlying institutional flow are pointing the same direction.
OMER posted net income of $124.8M over the trailing twelve months.
+$185.2M
Total Buy Value
$19.6M
Total Sell Value
112
Net Buyers
66
Net Sellers
OMER
Q2 2026
Top 5 Institutional Movers
+$13.4M
+$6.2M
OMER does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
9
Filings (90d)
$2.26M
Total Est. Value
121K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| DAVID BORGES | 2026-09-23 | $314K |
| DAVID BORGES | 2026-09-22 | $185K |
| PETER CANCELMO | 2026-08-31 | $464K |
| PETER CANCELMO | 2026-08-28 | $466K |
| ARNOLD HANISH | 2026-08-27 | $189K |
| ARNOLD HANISH | 2026-08-26 | $94K |
| DAVID BORGES | 2026-08-21 | $203K |
| THOMAS CABLE | 2026-08-20 | $277K |
| DAVID BORGES | 2026-08-13 | $69K |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
1
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| BlackRock, Inc. | 13G/A | 2026-07-29 | 8.2% |
2
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)AI summary pending
View Full Filing (SEC EDGAR)682143102
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,278
Total reported value
$2.2T
3254 13F institutions increased their position this quarter
Institutions Holding
6,025
Total reported value
$3.6T
3054 13F institutions increased their position this quarter
Institutions Holding
6,188
Total reported value
$1.8T
2995 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,789
Total reported value
$1.2T
Held by 4789 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,716
Total reported value
$473.6B
Held by 4716 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,662
Total reported value
$986.0B
Held by 4662 institutions — one of the most-tracked stocks on AlphaSMO
Access OMER's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/OMERCLI
npx alphasmo stocks get OMERFull API & MCP documentation →