Who owns COO (COO)
Which tracked institutional funds hold COO, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See COO 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
107 tracked funds added or opened COO while 274 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
COO’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 0.1pp gap the other way — the median holder sizes COO more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in COO 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 702 tracked filers holding COO, 356 increased or opened the position and 360 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
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 COO 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 42
- VANGUARD CAPITAL MANAGEMENT LLC$930M
- VANGUARD PORTFOLIO MANAGEMENT LLC$630M
- Longview Partners (Guernsey) LTD$273M
- VANGUARD FIDUCIARY TRUST CO$82M
- Vanguard Global Advisers, LLC$32M
- Border to Coast Pensions Partnership Ltd$27M
Full exits 41
- VANGUARD GROUP INC$2.0B
- Millstreet Capital Management LLC$31M
- Skandinaviska Enskilda Banken AB (publ)$23M
- MKP Capital Management, L.L.C.$16M
- CIBC WORLD MARKETS CORP$15M
- Taproot Management LP$9M
Largest adds
- BROWNING WEST LP$197M
- NORGES BANK$168M
- T. Rowe Price Investment Management, Inc.$164M
- AQR CAPITAL MANAGEMENT LLC$125M
- UBS Group AG$101M
- GENERATION INVESTMENT MANAGEMENT LLP$95M
Largest trims
- BlackRock, Inc.$449M
- Capital World Investors$306M
- ALLIANCEBERNSTEIN L.P.$167M
- Sustainable Growth Advisers, LP$129M
- KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC$117M
- PRICE T ROWE ASSOCIATES INC /MD/$108M
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 |
|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC new | 12,718,829 | $909M | 6.6% | 2026-Q1 |
| BlackRock, Inc. trimmed | 12,715,648 | $909M | 6.6% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. added | 9,060,177 | $648M | 4.7% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 8,721,331 | $624M | 4.5% | 2026-Q1 |
| Capital World Investors trimmed | 7,414,949 | $530M | 3.8% | 2026-Q1 |
| BROWNING WEST LP added | 6,979,529 | $499M | 3.6% | 2026-Q1 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC trimmed | 6,616,677 | $473M | 3.4% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 4,867,282 | $348M | 2.5% | 2026-Q1 |
| GENERATION INVESTMENT MANAGEMENT LLP added | 4,599,389 | $329M | 2.4% | 2026-Q1 |
| Longview Partners (Guernsey) LTD new | 3,823,062 | $273M | 2.0% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 3,723,323 | $261M | 1.9% | 2026-Q1 |
| JANA Partners Management, LP added | 3,565,158 | $255M | 1.8% | 2026-Q1 |
| DIAMOND HILL CAPITAL MANAGEMENT INC added | 3,398,260 | $243M | 1.8% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC trimmed | 3,394,040 | $243M | 1.8% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 3,331,151 | $238M | 1.7% | 2026-Q1 |
| JANUS HENDERSON GROUP PLC trimmed | 3,067,125 | $219M | 1.6% | 2026-Q1 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ trimmed | 2,618,280 | $211M | 1.5% | 2026-Q1 |
| NORGES BANK added | 2,384,794 | $201M | 1.5% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 2,530,069 | $181M | 1.3% | 2026-Q1 |
| LONDON CO OF VIRGINIA added | 2,237,145 | $160M | 1.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 2,068,877 | $148M | 1.1% | 2026-Q1 |
| Sustainable Growth Advisers, LP trimmed | 2,054,312 | $147M | 1.1% | 2026-Q1 |
| River Road Asset Management, LLC added | 1,974,606 | $141M | 1.0% | 2026-Q1 |
| MORGAN STANLEY trimmed | 1,918,126 | $137M | 1.0% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,805,666 | $129M | 0.9% | 2026-Q1 |
| Champlain Investment Partners, LLC trimmed | 1,608,090 | $115M | 0.8% | 2026-Q1 |
| Alecta Tjanstepension Omsesidigt | 1,563,000 | $112M | 0.8% | 2026-Q1 |
| MANNING & NAPIER ADVISORS LLC trimmed | 1,443,901 | $103M | 0.7% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 1,438,113 | $103M | 0.7% | 2026-Q1 |
| Focus Partners Wealth added | 1,391,398 | $99M | 0.7% | 2026-Q1 |
| Findlay Park Partners LLP trimmed | 1,327,500 | $95M | 0.7% | 2026-Q1 |
| Boston Trust Walden Corp trimmed | 1,159,562 | $83M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 1,102,613 | $79M | 0.6% | 2026-Q1 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 947,755 | $68M | 0.5% | 2026-Q1 |
| BESSEMER GROUP INC added | 944,074 | $68M | 0.5% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 871,832 | $62M | 0.5% | 2026-Q1 |
| Amundi trimmed | 823,349 | $59M | 0.4% | 2026-Q1 |
| Swedbank AB trimmed | 819,229 | $59M | 0.4% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 800,340 | $57M | 0.4% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 784,716 | $56M | 0.4% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC trimmed | 749,930 | $54M | 0.4% | 2026-Q1 |
| ArrowMark Colorado Holdings LLC trimmed | 662,361 | $47M | 0.3% | 2026-Q1 |
| DAVENPORT & Co LLC added | 649,497 | $46M | 0.3% | 2026-Q1 |
| TD Asset Management Inc trimmed | 643,974 | $46M | 0.3% | 2026-Q1 |
| STOREBRAND ASSET MANAGEMENT AS added | 635,579 | $45M | 0.3% | 2026-Q1 |
| Swiss National Bank added | 575,200 | $41M | 0.3% | 2026-Q1 |
| MACKENZIE FINANCIAL CORP added | 557,258 | $40M | 0.3% | 2026-Q1 |
| Rathbones Group PLC trimmed | 504,896 | $36M | 0.3% | 2026-Q1 |
| FMR LLC added | 487,487 | $35M | 0.3% | 2026-Q1 |
| BAMCO INC /NY/ trimmed | 454,864 | $33M | 0.2% | 2026-Q1 |
| Mitsubishi UFJ Asset Management Co., Ltd. added | 452,934 | $32M | 0.2% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. added | 439,109 | $31M | 0.2% | 2026-Q1 |
| Vanguard Global Advisers, LLC new | 428,842 | $31M | 0.2% | 2026-Q1 |
| Quantinno Capital Management LP added | 422,577 | $30M | 0.2% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 403,103 | $29M | 0.2% | 2026-Q1 |
| Border to Coast Pensions Partnership Ltd new | 379,076 | $27M | 0.2% | 2026-Q1 |
| FRONTIER CAPITAL MANAGEMENT CO LLC trimmed | 352,335 | $25M | 0.2% | 2026-Q1 |
| CRAMER ROSENTHAL MCGLYNN LLC added | 350,962 | $25M | 0.2% | 2026-Q1 |
| VANGUARD ASSET MANAGEMENT, Ltd new | 339,360 | $24M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System trimmed | 338,750 | $24M | 0.2% | 2026-Q1 |
| Susquehanna Portfolio Strategies, LLC added | 337,729 | $24M | 0.2% | 2026-Q1 |
| BARCLAYS PLC trimmed | 332,588 | $24M | 0.2% | 2026-Q1 |
| SEB Asset Management AB new | 319,201 | $23M | 0.2% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 316,034 | $23M | 0.2% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 313,784 | $22M | 0.2% | 2026-Q1 |
| NATIXIS ADVISORS, LLC added | 303,971 | $22M | 0.2% | 2026-Q1 |
| Woodline Partners LP added | 299,926 | $21M | 0.2% | 2026-Q1 |
| Bellevue Group AG trimmed | 272,184 | $19M | 0.1% | 2026-Q1 |
| Triodos Investment Management BV | 248,250 | $18M | 0.1% | 2026-Q1 |
| Trajan Wealth LLC added | 244,634 | $17M | 0.1% | 2026-Q1 |
| CONGRESS ASSET MANAGEMENT CO added | 242,095 | $17M | 0.1% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 241,292 | $17M | 0.1% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 237,618 | $17M | 0.1% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 231,151 | $17M | 0.1% | 2026-Q1 |
| ASSETMARK, INC added | 222,349 | $16M | 0.1% | 2026-Q1 |
| HEARTLAND ADVISORS INC added | 221,656 | $16M | 0.1% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 219,829 | $16M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 23,456,309 | $1.9B | 13.9% | 2025-Q4 stale |
| Veritas Asset Management LLP trimmed | 3,847,698 | $325M | 2.3% | 2025-Q1 stale |
| Holocene Advisors, LP trimmed | 1,717,723 | $118M | 0.9% | 2025-Q3 stale |
| Altshuler Shaham Ltd added | 1,440,000 | $99M | 0.7% | 2025-Q3 stale |
| Select Equity Group, L.P. trimmed | 1,265,211 | $87M | 0.6% | 2025-Q3 stale |
| Unisphere Establishment added | 948,100 | $65M | 0.5% | 2025-Q3 stale |
| Intermede Investment Partners Ltd trimmed | 917,299 | $63M | 0.5% | 2025-Q3 stale |
| Ilex Capital Partners (UK) LLP added | 875,384 | $60M | 0.4% | 2025-Q3 stale |
| Kovitz Investment Group Partners, LLC added | 782,340 | $54M | 0.4% | 2025-Q3 stale |
| Freestone Grove Partners LP new | 600,339 | $43M | 0.3% | 2025-Q2 stale |
| HAWK RIDGE CAPITAL MANAGEMENT LP new | 423,900 | $36M | 0.3% | 2025-Q1 stale |
| RIVULET CAPITAL, LLC new | 472,750 | $32M | 0.2% | 2025-Q3 stale |
| Millstreet Capital Management LLC | 931,971 | $31M | 0.2% | 2025-Q4 stale |
| Vestal Point Capital, LP new | 350,000 | $25M | 0.2% | 2025-Q2 stale |
| Skandinaviska Enskilda Banken AB (publ) trimmed | 275,837 | $23M | 0.2% | 2025-Q4 stale |
| OSSIAM added | 312,028 | $21M | 0.2% | 2025-Q3 stale |
| DG Capital Management, LLC new | 284,963 | $20M | 0.1% | 2025-Q2 stale |
| GLENVIEW CAPITAL MANAGEMENT, LLC new | 280,688 | $20M | 0.1% | 2025-Q2 stale |
| JENNISON ASSOCIATES LLC trimmed | 238,094 | $17M | 0.1% | 2025-Q2 stale |
| LORD, ABBETT & CO. LLC trimmed | 197,579 | $17M | 0.1% | 2025-Q1 stale |
| Impax Asset Management Group plc trimmed | 198,249 | $17M | 0.1% | 2025-Q1 stale |
| MKP Capital Management, L.L.C. new | 200,000 | $16M | 0.1% | 2025-Q4 stale |
| TAURUS ASSET MANAGEMENT, LLC added | 191,854 | $16M | 0.1% | 2025-Q1 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.