Who owns OMC (OMC)
Which tracked institutional funds hold OMC, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See OMC company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
187 tracked funds added or opened OMC while 300 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
OMC’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.0pp gap the other way — the median holder sizes OMC more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in OMC divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 1119 tracked filers holding OMC, 592 increased or opened the position and 541 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in OMC between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 43
- VANGUARD CAPITAL MANAGEMENT LLC$1.5B
- VANGUARD PORTFOLIO MANAGEMENT LLC$1.1B
- VANGUARD FIDUCIARY TRUST CO$133M
- SOUND SHORE MANAGEMENT INC /CT/$63M
- Vanguard Global Advisers, LLC$52M
- VANGUARD ASSET MANAGEMENT, Ltd$48M
Full exits 63
- VANGUARD GROUP INC$3.1B
- Alyeska Investment Group, L.P.$124M
- Pacer Advisors, Inc.$106M
- Junto Capital Management LP$82M
- Holocene Advisors, LP$59M
- TODD ASSET MANAGEMENT LLC$25M
Largest adds
- STATE STREET CORP$176M
- MORGAN STANLEY$136M
- Capital Research Global Investors$125M
- UBS Group AG$110M
- FMR LLC$99M
- VICTORY CAPITAL MANAGEMENT INC$75M
Largest trims
- BlackRock, Inc.$540M
- CANADA PENSION PLAN INVESTMENT BOARD$267M
- CITADEL ADVISORS LLC$248M
- WELLINGTON MANAGEMENT GROUP LLP$231M
- GOLDMAN SACHS GROUP INC$223M
- Beutel, Goodman & Co Ltd.$143M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| STATE STREET CORP added | 27,760,218 | $2.1B | 8.9% | 2026-Q1 |
| BlackRock, Inc. trimmed | 24,116,377 | $1.8B | 7.7% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 20,295,276 | $1.5B | 6.5% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 14,840,407 | $1.1B | 4.7% | 2026-Q1 |
| Bank of New York Mellon Corp added | 12,098,191 | $911M | 3.9% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 12,031,678 | $906M | 3.8% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 9,313,917 | $700M | 3.0% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 8,736,665 | $665M | 2.8% | 2026-Q1 |
| First Eagle Investment Management, LLC added | 7,303,113 | $550M | 2.3% | 2026-Q1 |
| MORGAN STANLEY added | 6,925,544 | $522M | 2.2% | 2026-Q1 |
| Capital Research Global Investors added | 6,695,199 | $504M | 2.1% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 6,357,489 | $480M | 2.0% | 2026-Q1 |
| FMR LLC added | 6,007,869 | $452M | 1.9% | 2026-Q1 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC trimmed | 5,376,034 | $405M | 1.7% | 2026-Q1 |
| Baird Financial Group, Inc. added | 4,710,039 | $355M | 1.5% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 4,423,294 | $333M | 1.4% | 2026-Q1 |
| Beutel, Goodman & Co Ltd. trimmed | 4,128,466 | $311M | 1.3% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 3,978,658 | $300M | 1.3% | 2026-Q1 |
| Invesco Ltd. added | 3,892,296 | $293M | 1.2% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 3,590,553 | $270M | 1.1% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 3,397,365 | $256M | 1.1% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 3,080,883 | $232M | 1.0% | 2026-Q1 |
| UBS Group AG added | 2,634,507 | $198M | 0.8% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 2,507,726 | $189M | 0.8% | 2026-Q1 |
| COOKE & BIELER LP trimmed | 2,283,397 | $172M | 0.7% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 2,193,987 | $165M | 0.7% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 2,037,462 | $153M | 0.6% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD trimmed | 1,999,483 | $151M | 0.6% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 1,943,875 | $146M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 1,766,822 | $133M | 0.6% | 2026-Q1 |
| ROYAL BANK OF CANADA added | 1,715,293 | $129M | 0.5% | 2026-Q1 |
| BARCLAYS PLC added | 1,571,845 | $118M | 0.5% | 2026-Q1 |
| Legal & General Group Plc added | 1,531,460 | $115M | 0.5% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 1,488,178 | $112M | 0.5% | 2026-Q1 |
| LAZARD ASSET MANAGEMENT LLC trimmed | 1,481,974 | $112M | 0.5% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 1,450,415 | $109M | 0.5% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 1,412,485 | $106M | 0.5% | 2026-Q1 |
| CRAWFORD INVESTMENT COUNSEL INC added | 1,311,252 | $99M | 0.4% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 1,245,356 | $94M | 0.4% | 2026-Q1 |
| Cullen Capital Management, LLC added | 1,164,690 | $88M | 0.4% | 2026-Q1 |
| BRANDES INVESTMENT PARTNERS, LP added | 1,145,912 | $86M | 0.4% | 2026-Q1 |
| ARIEL INVESTMENTS, LLC added | 1,104,945 | $83M | 0.4% | 2026-Q1 |
| LPL Financial LLC added | 1,024,751 | $77M | 0.3% | 2026-Q1 |
| Nuveen, LLC trimmed | 979,995 | $74M | 0.3% | 2026-Q1 |
| Amundi trimmed | 971,699 | $73M | 0.3% | 2026-Q1 |
| CITIGROUP INC added | 961,986 | $72M | 0.3% | 2026-Q1 |
| National Pension Service added | 960,483 | $72M | 0.3% | 2026-Q1 |
| ASSETMARK, INC added | 931,933 | $70M | 0.3% | 2026-Q1 |
| Clark Capital Management Group, Inc. trimmed | 924,171 | $70M | 0.3% | 2026-Q1 |
| Swiss National Bank added | 923,271 | $70M | 0.3% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 909,386 | $68M | 0.3% | 2026-Q1 |
| Epoch Investment Partners, Inc. added | 856,719 | $65M | 0.3% | 2026-Q1 |
| SOUND SHORE MANAGEMENT INC /CT/ new | 842,962 | $63M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 824,261 | $62M | 0.3% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 798,696 | $60M | 0.3% | 2026-Q1 |
| Boston Partners trimmed | 782,689 | $59M | 0.2% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 756,426 | $57M | 0.2% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ trimmed | 752,469 | $57M | 0.2% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 724,426 | $55M | 0.2% | 2026-Q1 |
| RWC Asset Management LLP added | 722,861 | $54M | 0.2% | 2026-Q1 |
| SEI INVESTMENTS CO added | 715,718 | $54M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System trimmed | 703,319 | $53M | 0.2% | 2026-Q1 |
| HSBC HOLDINGS PLC trimmed | 693,921 | $52M | 0.2% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 688,029 | $52M | 0.2% | 2026-Q1 |
| PFA Pension, Forsikringsaktieselskab trimmed | 660,779 | $50M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 653,692 | $49M | 0.2% | 2026-Q1 |
| Zurcher Kantonalbank (Zurich Cantonalbank) added | 641,489 | $48M | 0.2% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 633,911 | $48M | 0.2% | 2026-Q1 |
| GMT Capital Corp new | 629,300 | $47M | 0.2% | 2026-Q1 |
| THOMPSON SIEGEL & WALMSLEY LLC added | 593,918 | $45M | 0.2% | 2026-Q1 |
| MILLER HOWARD INVESTMENTS INC /NY added | 581,969 | $44M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 532,308 | $40M | 0.2% | 2026-Q1 |
| SG Americas Securities, LLC added | 530,862 | $40M | 0.2% | 2026-Q1 |
| VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. added | 514,801 | $39M | 0.2% | 2026-Q1 |
| Swiss Life Asset Management Ltd added | 502,892 | $38M | 0.2% | 2026-Q1 |
| VAUGHAN DAVID INVESTMENTS LLC/IL added | 486,633 | $37M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 484,542 | $37M | 0.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 447,832 | $36M | 0.2% | 2026-Q1 |
| Janney Montgomery Scott LLC trimmed | 453,961 | $34M | 0.1% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 450,619 | $34M | 0.1% | 2026-Q1 |
| Invenomic Capital Management LP trimmed | 447,075 | $34M | 0.1% | 2026-Q1 |
| GLENMEDE TRUST CO NA added | 447,005 | $34M | 0.1% | 2026-Q1 |
| Artisan Partners Limited Partnership trimmed | 433,573 | $33M | 0.1% | 2026-Q1 |
| CONNING INC. added | 432,749 | $33M | 0.1% | 2026-Q1 |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ added | 432,609 | $33M | 0.1% | 2026-Q1 |
| BANK OF NOVA SCOTIA added | 431,429 | $32M | 0.1% | 2026-Q1 |
| TD Asset Management Inc trimmed | 421,737 | $32M | 0.1% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 418,310 | $32M | 0.1% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 395,551 | $30M | 0.1% | 2026-Q1 |
| DANSKE BANK A/S trimmed | 390,611 | $29M | 0.1% | 2026-Q1 |
| ZWJ INVESTMENT COUNSEL INC added | 377,828 | $28M | 0.1% | 2026-Q1 |
| Gotham Asset Management, LLC trimmed | 376,787 | $28M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 38,782,166 | $3.1B | 13.3% | 2025-Q4 stale |
| Alyeska Investment Group, L.P. new | 1,540,468 | $124M | 0.5% | 2025-Q4 stale |
| Pacer Advisors, Inc. trimmed | 1,316,832 | $106M | 0.5% | 2025-Q4 stale |
| Junto Capital Management LP added | 1,010,474 | $82M | 0.3% | 2025-Q4 stale |
| Holocene Advisors, LP added | 732,205 | $59M | 0.3% | 2025-Q4 stale |
| SONA ASSET MANAGEMENT (US) LLC new | 557,198 | $46M | 0.2% | 2025-Q1 stale |
| Glenmede Investment Management, LP trimmed | 435,204 | $35M | 0.2% | 2025-Q3 stale |
| AXA S.A. added | 404,236 | $29M | 0.1% | 2025-Q2 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.