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Security record · archived quarter

OMER

Omeros Corporation · Healthcare · Biotechnology

16.57 -1.7% mkt cap $1.20B quote delayed (FMP) · as of Oct 23 22:08 UTC · separate from filing data below

Q3 2026 Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024
71Tracked holders
-2Δ holders
30.19MShares held
$466.97MReported value
+0New positions
−2Exits
Falling Conviction score 50/100 6 quarters of rising tracked shares ●●●●●● How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth -2.7% · share flow -7.3% · net new positions -2.8% · formula
Broad distribution: falling shares and fewer holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q3 2026 1 +1 30.11K $575,627 +1 −1
Q2 2026 74 -1 26.77M $254.67M +8 −10
Q1 2026 78 +7 23.56M $249.21M +9 −2
Q4 2025 71 -2 30.19M $466.97M n/a −2
Q3 2025 17 0 17.59M $72.13M n/a n/a
Q2 2025 14 +1 14.04M $42.12M +1 n/a
Q1 2025 10 +1 6.15M $50.54M +1 n/a
Q4 2024 9 0 4.83M $47.77M +1 −1
Q3 2024 8 +1 3.34M $13.26M +1 n/a
Q2 2024 7 n/a 3.21M $13.02M n/a n/a
Holder count
Who holds it · Q4 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 BlackRock ✦ (passive) 5.06M +13.7% $86.95M 0.0% ▲ Add 3 SEC ↗ ×9
2 The Vanguard Group ✦ (passive) 4.01M +19.9% $68.93M 0.0% ▲ Add 3 SEC ↗ ×3
3 UBS Group AG 2.22M n/a $38.18M 0.0% n/c 1 SEC ↗ ×4
4 Stifel Financial Corp 1.81M n/a $31.08M 0.0% n/c 1 SEC ↗ ×2
5 Geode Capital Management ✦ (passive) 1.63M +6.2% $28.03M 0.0% ▲ Add 7 SEC ↗ ×2
6 State Street Global Advisors ✦ (passive) 1.57M +26.9% $27.03M 0.0% ▲ Add 5 SEC ↗
7 Corient Private Wealth LP 1.38M n/a $23.62M 0.0% n/c 1 SEC ↗ ×3
8 D. E. Shaw & Co. ✦ 755.00K -24.9% $12.97M 0.0% ▼ Trim 7 SEC ↗ ×3
9 Susquehanna International Group, Llp 741.89K n/a $12.74M 0.0% n/c 1 SEC ↗ ×2
10 Nomura Holdings Inc 655.02K n/a $11.25M 0.0% n/c 1 SEC ↗
11 Bank Of Montreal /Can/ 601.64K n/a $10.33M 0.0% n/c 1 SEC ↗ ×3
12 Charles Schwab Investment… 593.22K n/a $10.19M 0.0% n/c 1 SEC ↗
13 Northern Trust Corp 526.73K n/a $9.05M 0.0% n/c 1 SEC ↗ ×3
14 Two Sigma Investments ✦ 524.76K -43.8% $9.01M 0.0% ▼ Trim 7 SEC ↗
15 Royal Bank Of Canada 498.40K n/a $8.56M 0.0% n/c 1 SEC ↗ ×3
16 Jane Street Group, Llc 463.62K n/a $7.96M 0.0% n/c 1 SEC ↗
17 Millennium Management ✦ 441.81K +9.9% $7.59M 0.0% ▲ Add 7 SEC ↗
18 Morgan Stanley ✦ 386.15K -80.6% $6.63M 0.0% ▼ Trim 2 SEC ↗ ×7
19 Focus Partners Wealth 3.27M n/a $4.67M 0.0% n/c 1 SEC ↗ ×2
20 Citadel Advisors ✦ 240.35K -38.9% $4.13M 0.0% ▼ Trim 7 SEC ↗
21 Goldman Sachs Group ✦ 227.29K -32.4% $3.90M 0.0% ▼ Trim 2 SEC ↗ ×2
22 Wellington Management ✦ 202.62K +4.2% $3.48M 0.0% ▲ Add 4 SEC ↗ ×3
23 Bank of New York Mellon Corp 165.78K n/a $2.85M 0.0% n/c 1 SEC ↗ ×4
24 Wells Fargo & Company/Mn 165.28K n/a $2.84M 0.0% n/c 1 SEC ↗ ×4
25 Invesco Ltd. 154.78K n/a $2.66M 0.0% n/c 1 SEC ↗ ×3
26 Nuveen, LLC 153.19K n/a $2.63M 0.0% n/c 1 SEC ↗ ×2
27 Group One Trading Llc 133.27K n/a $2.29M 0.1% n/c 1 SEC ↗
28 Simplex Trading, Llc 123.98K n/a $2.13M 0.1% n/c 1 SEC ↗
29 Barclays Plc 120.49K n/a $2.07M 0.0% n/c 1 SEC ↗
30 Ameriprise Financial Inc 117.00K n/a $2.01M 0.0% n/c 1 SEC ↗ ×2
31 Bank Of America Corp /De/ 114.81K n/a $1.97M 0.0% n/c 1 SEC ↗ ×6
32 HighTower Advisors, LLC 104.06K n/a $1.79M 0.0% n/c 1 SEC ↗
33 Rhumbline Advisers 100.11K n/a $1.72M 0.0% n/c 1 SEC ↗
34 Dimensional Fund Advisors Lp 96.95K n/a $1.67M 0.0% n/c 1 SEC ↗ ×2
35 T. Rowe Price ✦ 95.75K +6.9% $1.64M 0.0% ▲ Add 7 SEC ↗
36 Mml Investors Services, Llc 77.88K n/a $1.34M 0.0% n/c 1 SEC ↗
37 Alliancebernstein L.P. 73.49K n/a $1.26M 0.0% n/c 1 SEC ↗
38 Walleye Trading LLC 69.65K n/a $1.20M 0.0% n/c 1 SEC ↗
39 Deutsche Bank Ag\ 48.69K n/a $836,563 0.0% n/c 1 SEC ↗ ×2
40 JPMorgan Chase ✦ 37.19K -95.5% $638,755 0.0% ▼ Trim 2 SEC ↗ ×4
41 Sei Investments Co 31.77K n/a $545,577 0.0% n/c 1 SEC ↗ ×3
42 MIRAE ASSET GLOBAL ETFS HOLDINGS… 30.59K n/a $525,297 0.0% n/c 1 SEC ↗
43 Cerity Partners LLC 30.45K n/a $522,979 0.0% n/c 1 SEC ↗ ×2
44 Citigroup Inc 27.49K n/a $472,124 0.0% n/c 1 SEC ↗ ×2
45 Man Group plc 27.10K n/a $465,425 0.0% n/c 1 SEC ↗
46 Quantinno Capital Management LP 25.07K n/a $430,646 0.0% n/c 1 SEC ↗
47 Wealth Enhancement Advisory… 31.73K n/a $429,280 0.0% n/c 1 SEC ↗
48 AQR Capital Management ✦ 22.84K +7.2% $392,243 0.0% ▲ Add 7 SEC ↗ ×6
49 Canada Pension Plan Investment Board 21.70K n/a $372,698 0.0% n/c 1 SEC ↗
50 New York State Common Retirement… 20.71K n/a $355,746 0.0% n/c 1 SEC ↗
51 Manufacturers Life Insurance… 19.85K n/a $340,924 0.0% n/c 1 SEC ↗
52 Fidelity (FMR) ✦ 18.07K +37.0% $310,325 0.0% ▲ Add 3 SEC ↗ ×2
53 Creative Planning 16.92K n/a $290,533 0.0% n/c 1 SEC ↗
54 Bnp Paribas Financial Markets 16.35K n/a $280,828 0.0% n/c 1 SEC ↗
55 ProShare Advisors LLC 15.17K n/a $260,561 0.0% n/c 1 SEC ↗
56 Russell Investments Group, Ltd. 14.01K n/a $240,690 0.0% n/c 1 SEC ↗ ×2
57 Raymond James Financial Inc 12.24K n/a $210,256 0.0% n/c 1 SEC ↗ ×2
58 Voya Investment Management Llc 11.40K n/a $195,881 0.0% n/c 1 SEC ↗
59 Osaic Holdings, Inc. 7.55K n/a $129,655 0.0% n/c 1 SEC ↗ ×2
60 Legal & General Group Plc 6.97K n/a $119,727 0.0% n/c 1 SEC ↗
61 California State Teachers… 4.05K n/a $69,645 0.0% n/c 1 SEC ↗
62 Optiver Holding B.V. 3.75K n/a $64,355 0.0% n/c 1 SEC ↗
63 Mirae Asset Global Investments Co.… 3.44K n/a $59,168 0.0% n/c 1 SEC ↗
64 Cwm, Llc 1.23K n/a $21,000 0.0% n/c 1 SEC ↗
65 Fifth Third Bancorp 1.00K n/a $17,175 0.0% n/c 1 SEC ↗
66 Zurcher Kantonalbank (Zurich… 765 n/a $13,139 0.0% n/c 1 SEC ↗
67 Northwestern Mutual Wealth… 500 n/a $8,588 0.0% n/c 1 SEC ↗
68 Pnc Financial Services Group, Inc. 377 n/a $6,475 0.0% n/c 1 SEC ↗ ×3
69 UBS AM, a distinct business unit of… 231 n/a $3,967 0.0% n/c 1 SEC ↗
70 Rockefeller Capital Management L.P. 195 n/a $3,349 0.0% n/c 1 SEC ↗
71 Daiwa Securities Group Inc. 191 n/a $3,000 0.0% n/c 1 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.

New buyers

No new tracked buyers this quarter.

Exited

Marshall Wace $1.90M was 0.0%
Renaissance Technologies $1.41M was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 4.17M shares, $8.90M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Sep 23 Borges David J.

Officer · 10.00K sh · $209,500

Sep 22 Borges David J.

Officer · 10.00K sh · $209,500

Aug 31 Cancelmo Peter B

Officer · 25.00K sh · $463,540

Aug 28 Cancelmo Peter B

Officer · 25.00K sh · $466,128

Aug 27 HANISH ARNOLD C

Director · 5.00K sh · $94,381

Aug 27 HANISH ARNOLD C

Director · 5.00K sh · $95,080

Aug 26 HANISH ARNOLD C

Director · 5.00K sh · $92,632

Aug 24 Borges David J.

Officer · 906 sh · $17,305

Aug 21 Borges David J.

Officer · 10.00K sh · $189,500

Aug 20 Cable Thomas J.

Director · 15.00K sh · $276,772

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Beneficial ownership
Jul 29 SC 13G/A: BlackRock, Inc.

View original SEC filing ↗

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q4 2025 · Methodology · Get this via the API