Who owns OPCH (OPCH)
Which tracked institutional funds hold OPCH, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See OPCH 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
56 tracked funds added or opened OPCH while 134 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
OPCH’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 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes OPCH more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in OPCH 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 368 tracked filers holding OPCH, 195 increased or opened the position and 190 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 OPCH 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 28
- VANGUARD PORTFOLIO MANAGEMENT LLC$217M
- VANGUARD CAPITAL MANAGEMENT LLC$189M
- Sumitomo Mitsui Trust Group, Inc.$70M
- Van Berkom & Associates Inc.$43M
- VANGUARD FIDUCIARY TRUST CO$30M
- WINTON GROUP Ltd$6M
Full exits 22
- VANGUARD GROUP INC$523M
- JUPITER ASSET MANAGEMENT LTD$23M
- Crawford Fund Management, LLC$12M
- TUDOR INVESTMENT CORP ET AL$5M
- JANE STREET GROUP, LLC$4M
- Lombard Odier Asset Management (Europe) Ltd$3M
Largest adds
- CITADEL ADVISORS LLC$42M
- MILLENNIUM MANAGEMENT LLC$29M
- Boston Partners$19M
- NORGES BANK$19M
- Alyeska Investment Group, L.P.$9M
- PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO$9M
Largest trims
- BlackRock, Inc.$160M
- FMR LLC$127M
- WELLINGTON MANAGEMENT GROUP LLP$61M
- WESTFIELD CAPITAL MANAGEMENT CO LP$56M
- Durable Capital Partners LP$44M
- MORGAN STANLEY$33M
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 |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 17,584,526 | $473M | 9.6% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 11,885,202 | $320M | 6.5% | 2026-Q1 |
| Durable Capital Partners LP | 8,991,254 | $242M | 4.9% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 8,062,555 | $217M | 4.4% | 2026-Q1 |
| FULLER & THALER ASSET MANAGEMENT, INC. added | 7,125,280 | $192M | 3.9% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 7,016,323 | $189M | 3.8% | 2026-Q1 |
| FMR LLC trimmed | 6,330,544 | $170M | 3.5% | 2026-Q1 |
| STATE STREET CORP added | 5,874,880 | $158M | 3.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 4,248,221 | $114M | 2.3% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 4,236,237 | $114M | 2.3% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 3,876,856 | $104M | 2.1% | 2026-Q1 |
| Southpoint Capital Advisors LP added | 3,600,000 | $97M | 2.0% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 3,537,458 | $95M | 1.9% | 2026-Q1 |
| NORGES BANK added | 2,299,873 | $80M | 1.6% | 2026-Q1 |
| MORGAN STANLEY trimmed | 2,814,252 | $76M | 1.5% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. new | 2,610,947 | $70M | 1.4% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 2,488,533 | $67M | 1.4% | 2026-Q1 |
| Boston Partners added | 2,431,467 | $66M | 1.3% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 1,945,015 | $52M | 1.1% | 2026-Q1 |
| NORTHERN TRUST CORP trimmed | 1,945,000 | $52M | 1.1% | 2026-Q1 |
| Duquesne Family Office LLC added | 1,868,550 | $50M | 1.0% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 1,804,871 | $49M | 1.0% | 2026-Q1 |
| Alyeska Investment Group, L.P. added | 1,781,365 | $48M | 1.0% | 2026-Q1 |
| Swedbank AB | 1,726,000 | $46M | 0.9% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. added | 1,431,823 | $46M | 0.9% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 1,685,225 | $45M | 0.9% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 1,640,991 | $44M | 0.9% | 2026-Q1 |
| Nuveen, LLC added | 1,620,872 | $44M | 0.9% | 2026-Q1 |
| Van Berkom & Associates Inc. new | 1,587,636 | $43M | 0.9% | 2026-Q1 |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ added | 1,479,728 | $40M | 0.8% | 2026-Q1 |
| GENEVA CAPITAL MANAGEMENT LLC added | 1,474,121 | $40M | 0.8% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 1,373,790 | $37M | 0.8% | 2026-Q1 |
| Freestone Grove Partners LP added | 1,239,573 | $33M | 0.7% | 2026-Q1 |
| LOOMIS SAYLES & CO L P trimmed | 1,237,747 | $33M | 0.7% | 2026-Q1 |
| JENNISON ASSOCIATES LLC added | 1,213,025 | $33M | 0.7% | 2026-Q1 |
| WESTFIELD CAPITAL MANAGEMENT CO LP trimmed | 1,182,814 | $32M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 1,107,063 | $30M | 0.6% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 1,083,023 | $29M | 0.6% | 2026-Q1 |
| RIVERBRIDGE PARTNERS LLC trimmed | 984,360 | $26M | 0.5% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 916,719 | $25M | 0.5% | 2026-Q1 |
| UBS Group AG trimmed | 810,511 | $22M | 0.4% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 803,892 | $22M | 0.4% | 2026-Q1 |
| SCHRODER INVESTMENT MANAGEMENT GROUP trimmed | 801,442 | $22M | 0.4% | 2026-Q1 |
| GILDER GAGNON HOWE & CO LLC trimmed | 801,142 | $22M | 0.4% | 2026-Q1 |
| VILLERE ST DENIS J & CO LLC trimmed | 801,040 | $22M | 0.4% | 2026-Q1 |
| Amundi trimmed | 709,607 | $19M | 0.4% | 2026-Q1 |
| Arvin Capital Management LP added | 699,458 | $19M | 0.4% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 690,295 | $19M | 0.4% | 2026-Q1 |
| Teca Partners, LP added | 691,098 | $19M | 0.4% | 2026-Q1 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC added | 616,662 | $17M | 0.3% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 562,704 | $15M | 0.3% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 558,926 | $15M | 0.3% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 519,940 | $14M | 0.3% | 2026-Q1 |
| HighTower Advisors, LLC added | 516,279 | $14M | 0.3% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 508,426 | $14M | 0.3% | 2026-Q1 |
| Leeward Investments, LLC - MA trimmed | 475,177 | $13M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 474,201 | $13M | 0.3% | 2026-Q1 |
| Summit Creek Advisors LLC trimmed | 444,577 | $12M | 0.2% | 2026-Q1 |
| Park West Asset Management LLC added | 423,554 | $11M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 405,479 | $11M | 0.2% | 2026-Q1 |
| Invesco Ltd. trimmed | 394,347 | $11M | 0.2% | 2026-Q1 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 349,751 | $10M | 0.2% | 2026-Q1 |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO added | 343,215 | $9M | 0.2% | 2026-Q1 |
| KORNITZER CAPITAL MANAGEMENT INC /KS trimmed | 321,856 | $9M | 0.2% | 2026-Q1 |
| GABELLI FUNDS LLC trimmed | 318,100 | $9M | 0.2% | 2026-Q1 |
| Directional Asset Management trimmed | 314,150 | $8M | 0.2% | 2026-Q1 |
| Swiss National Bank trimmed | 314,100 | $8M | 0.2% | 2026-Q1 |
| GAMCO INVESTORS, INC. ET AL trimmed | 303,927 | $8M | 0.2% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 280,542 | $8M | 0.2% | 2026-Q1 |
| Man Group plc added | 270,925 | $7M | 0.1% | 2026-Q1 |
| California Public Employees Retirement System trimmed | 264,662 | $7M | 0.1% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 259,588 | $7M | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 244,684 | $7M | 0.1% | 2026-Q1 |
| Compass Wealth Management LLC trimmed | 234,498 | $6M | 0.1% | 2026-Q1 |
| Legal & General Group Plc trimmed | 223,214 | $6M | 0.1% | 2026-Q1 |
| WINTON GROUP Ltd added | 216,816 | $6M | 0.1% | 2026-Q1 |
| NICHOLAS COMPANY, INC. trimmed | 213,115 | $6M | 0.1% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 210,270 | $6M | 0.1% | 2026-Q1 |
| Phocas Financial Corp. added | 208,974 | $6M | 0.1% | 2026-Q1 |
| Allianz Asset Management GmbH trimmed | 203,552 | $5M | 0.1% | 2026-Q1 |
| STALEY CAPITAL ADVISERS INC trimmed | 200,000 | $5M | 0.1% | 2026-Q1 |
| SEI INVESTMENTS CO trimmed | 198,585 | $5M | 0.1% | 2026-Q1 |
| Retirement Systems of Alabama added | 194,597 | $5M | 0.1% | 2026-Q1 |
| FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. new | 192,894 | $5M | 0.1% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 189,474 | $5M | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 184,221 | $5M | 0.1% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 183,735 | $5M | 0.1% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 183,205 | $5M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 16,403,470 | $523M | 10.6% | 2025-Q4 stale |
| Allspring Global Investments Holdings, LLC trimmed | 1,389,355 | $38M | 0.8% | 2025-Q3 stale |
| JUPITER ASSET MANAGEMENT LTD added | 708,742 | $23M | 0.5% | 2025-Q4 stale |
| Fiera Capital Corp trimmed | 642,372 | $21M | 0.4% | 2025-Q2 stale |
| Cubist Systematic Strategies, LLC added | 354,188 | $12M | 0.3% | 2025-Q1 stale |
| Crawford Fund Management, LLC new | 367,000 | $12M | 0.2% | 2025-Q4 stale |
| Point72 (DIFC) Ltd added | 391,700 | $11M | 0.2% | 2025-Q3 stale |
| Corebridge Financial, Inc. trimmed | 270,884 | $9M | 0.2% | 2025-Q1 stale |
| ADAGE CAPITAL PARTNERS GP, L.L.C. added | 221,000 | $7M | 0.1% | 2025-Q2 stale |
| ALGERT GLOBAL LLC added | 231,902 | $6M | 0.1% | 2025-Q3 stale |
| ExodusPoint Capital Management, LP added | 218,086 | $6M | 0.1% | 2025-Q3 stale |
| TUDOR INVESTMENT CORP ET AL | 175,344 | $5M | 0.1% | 2025-Q4 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.