134 tracked 13F filers disclose a position in OMER as of the latest SEC 13F filings, a combined $275.1M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $56.1M | 5.3M | ▲+4.9% Added · +247K sh | Q1 2026 | |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $31.5M | 3.0M | →First observed position No prior filed position | Q1 2026 | |
| 3 | UBS Group AG | $24.7M | 2.3M | ▲+5.3% Added · +118K sh | Q1 2026 | |
| 4 | STATE STREET CORP | $20.3M | 1.9M | ▲+22% Added · +346K sh | Q1 2026 | |
| 5 | STIFEL FINANCIAL CORP | $19.3M | 1.8M | ▲+1.2% Added · +22K sh | Q1 2026 | |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $18.5M | 1.8M | ▲+7.4% Added · +121K sh | Q1 2026 | |
| 7 | Corient Private Wealth LLC | $8.5M | 801K | ▲+16% Added · +113K sh | Q1 2026 | |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLC | $7.6M | 719K | →First observed position No prior filed position | Q1 2026 | |
| 9 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $6.2M | 583K | ▼−1.8% Reduced · −11K sh | Q1 2026 | |
| 10 | BANK OF MONTREAL /CAN/ | $6.0M | 568K | ▼−5.5% Reduced · −33K sh | Q1 2026 | |
| 11 | NORTHERN TRUST CORP | $6.0M | 564K | ▲+7.0% Added · +37K sh | Q1 2026 | |
| 12 | VANGUARD FIDUCIARY TRUST CO | $5.2M | 492K | →First observed position No prior filed position | Q1 2026 | |
| 13 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $5.1M | 485K | ▼−35% Reduced · −257K sh | Q1 2026 | |
| 14 | MILLENNIUM MANAGEMENT LLC | $4.3M | 411K | ▼−7.1% Reduced · −31K sh | Q1 2026 | |
| 15 | MORGAN STANLEY | $3.4M | 318K | ▼−18% Reduced · −68K sh | Q1 2026 | |
| 16 | TWO SIGMA INVESTMENTS, LP | $3.0M | 286K | ▼−45% Reduced · −238K sh | Q1 2026 | |
| 17 | Badgley Phelps Wealth Managers, LLC | $2.8M | 264K | —Held | Q1 2026 | |
| 18 | CITADEL ADVISORS LLC | $2.7M | 260K | ▲+8.2% Added · +20K sh | Q1 2026 | |
| 19 | BANK OF AMERICA CORP /DE/ | $2.2M | 205K | ▲+78% Added · +90K sh | Q1 2026 | |
| 20 | GOLDMAN SACHS GROUP INC | $2.1M | 203K | ▼−11% Reduced · −24K sh | Q1 2026 | |
| 21 | Polar Asset Management Partners Inc. | $2.1M | 200K | ▲+191% Added · +131K sh | Q1 2026 | |
| 22 | Jump Financial, LLC | $2.1M | 196K | ▼−14% Reduced · −32K sh | Q1 2026 | |
| 23 | DIMENSIONAL FUND ADVISORS LP | $1.9M | 180K | ▲+85% Added · +83K sh | Q1 2026 | |
| 24 | Prosight Management, LP | $1.8M | 175K | ▲New +175K sh | Q1 2026 | |
| 25 | Bank of New York Mellon Corp | $1.8M | 166K | ▲+0.3% Added · +464 sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 8 funds opened a new position in OMER and 15 added to an existing one, while 12 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 46 funds | $19.2B |
| AMAZON.COM INCAMZN | 46 funds | $14.1B |
| META PLATFORMS INC-CLASS AMETA | 46 funds | $8.8B |
| TESLA INCTSLA | 46 funds | $5.6B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 46 funds | $4.3B |
| PALANTIR TECHNOLOGIES INC-APLTR | 46 funds | $2.9B |
| APPLIED MATERIALS INCAMAT | 46 funds | $2.7B |
| LAM RESEARCH CORPLRCX | 46 funds | $2.5B |
| ADVANCED MICRO DEVICESAMD | 46 funds | $2.5B |
| HOME DEPOT INCHD | 46 funds | $2.5B |
| ORACLE CORPORCL | 46 funds | $1.9B |
| ADOBE INCADBE | 46 funds | $1.1B |
Ranked by how many of OMER's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| May 22, 2026 | Cable Thomas J. | Director | Sell (S) | 8K | $87K |
| Jan 13, 2026 | Borges David J. | VP, Finance & CAO | Sell (S) | 30K | $369K |
| Jan 12, 2026 | Borges David J. | VP, Finance & CAO | Sell (S) | 30K | $382K |
| Nov 17, 2023 | Demopulos Gregory A MD | Chairman, CEO & President | Buy (P) | 15K | $25K |
| Nov 15, 2023 | Demopulos Peter A MD | Director | Buy (P) | 10K | $15K |
| May 22, 2023 | Cable Thomas J. | Director | Sell (S) | 5K | $33K |
| May 22, 2023 | HANISH ARNOLD C | Director | Sell (S) | 5K | $32K |
| Jun 17, 2021 | Demopulos Gregory A MD | CHAIRMAN, CEO & PRESIDENT, Director | Sell (S) | 37K | $549K |
| Jun 15, 2021 | Demopulos Gregory A MD | CHAIRMAN, CEO & PRESIDENT, Director | Sell (S) | 37K | $554K |
| May 20, 2021 | Demopulos Gregory A MD | CHAIRMAN, CEO & PRESIDENT, Director | Sell (S) | 37K | $551K |
| May 19, 2021 | Demopulos Gregory A MD | CHAIRMAN, CEO & PRESIDENT, Director | Sell (S) | 37K | $629K |
| Apr 8, 2021 | Demopulos Gregory A MD | CHAIRMAN, CEO & PRESIDENT, Director | Sell (S) | 35K | $625K |
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/OMER/capital-change-brief"
Use Arkolith's capital_change_brief for OMER. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for OMER. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.