Who owns COMP (COMP)
Which tracked institutional funds hold COMP, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See COMP 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
101 tracked funds added or opened COMP while 139 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
COMP’s largest tracked holder by dollar value, FMR LLC, 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 COMP more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in COMP 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 417 tracked filers holding COMP, 291 increased or opened the position and 151 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 COMP 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 48
- VANGUARD PORTFOLIO MANAGEMENT LLC$439M
- VANGUARD CAPITAL MANAGEMENT LLC$226M
- Parsifal Capital Management, LP$87M
- WCM INVESTMENT MANAGEMENT, LLC$41M
- BALYASNY ASSET MANAGEMENT L.P.$33M
- VANGUARD FIDUCIARY TRUST CO$32M
Full exits 35
- VANGUARD GROUP INC$774M
- Point72 Asset Management, L.P.$21M
- Luxor Capital Group, LP$20M
- TIG Advisors, LLC$19M
- PSquared Asset Management AG$19M
- Nearwater Capital Markets, Ltd$18M
Largest adds
- Capital International Investors$96M
- CITADEL ADVISORS LLC$61M
- FMR LLC$46M
- Senvest Management, LLC$41M
- Schonfeld Strategic Advisors LLC$35M
- DIMENSIONAL FUND ADVISORS LP$34M
Largest trims
- SB INVESTMENT ADVISERS (UK) LTD$104M
- BlackRock, Inc.$102M
- MAVERICK CAPITAL LTD$96M
- M&T Bank Corp$57M
- Atreides Management, LP$52M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$51M
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 |
|---|---|---|---|---|
| FMR LLC added | 106,720,668 | $780M | 14.3% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 60,036,878 | $439M | 8.0% | 2026-Q1 |
| BlackRock, Inc. added | 42,689,963 | $312M | 5.7% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 30,876,947 | $226M | 4.1% | 2026-Q1 |
| SB INVESTMENT ADVISERS (UK) LTD trimmed | 22,004,702 | $161M | 2.9% | 2026-Q1 |
| Capital International Investors added | 19,943,416 | $146M | 2.7% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 16,416,159 | $120M | 2.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 15,384,251 | $112M | 2.1% | 2026-Q1 |
| STATE STREET CORP added | 14,652,561 | $107M | 2.0% | 2026-Q1 |
| Parsifal Capital Management, LP new | 11,918,302 | $87M | 1.6% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 11,582,802 | $85M | 1.5% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 10,685,017 | $78M | 1.4% | 2026-Q1 |
| Artisan Partners Limited Partnership added | 10,044,557 | $73M | 1.3% | 2026-Q1 |
| Senvest Management, LLC added | 9,179,745 | $67M | 1.2% | 2026-Q1 |
| MARSHALL WACE, LLP added | 8,913,317 | $65M | 1.2% | 2026-Q1 |
| Schonfeld Strategic Advisors LLC added | 7,543,726 | $55M | 1.0% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 7,055,229 | $52M | 0.9% | 2026-Q1 |
| Winslow Capital Management, LLC | 6,934,620 | $51M | 0.9% | 2026-Q1 |
| Philosophy Capital Management LLC added | 6,775,197 | $50M | 0.9% | 2026-Q1 |
| UBS Group AG added | 6,704,506 | $49M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 6,572,901 | $48M | 0.9% | 2026-Q1 |
| Kanen Wealth Management LLC added | 6,408,499 | $47M | 0.9% | 2026-Q1 |
| DISCOVERY CAPITAL MANAGEMENT, LLC / CT added | 6,072,297 | $44M | 0.8% | 2026-Q1 |
| Southpoint Capital Advisors LP trimmed | 6,000,000 | $44M | 0.8% | 2026-Q1 |
| Nuveen, LLC added | 5,713,412 | $42M | 0.8% | 2026-Q1 |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC added | 5,701,503 | $42M | 0.8% | 2026-Q1 |
| WCM INVESTMENT MANAGEMENT, LLC new | 6,014,373 | $41M | 0.8% | 2026-Q1 |
| NORTHERN TRUST CORP added | 5,600,446 | $41M | 0.7% | 2026-Q1 |
| Atreides Management, LP trimmed | 5,561,998 | $41M | 0.7% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 5,727,354 | $39M | 0.7% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 5,283,015 | $39M | 0.7% | 2026-Q1 |
| MAVERICK CAPITAL LTD trimmed | 5,172,396 | $38M | 0.7% | 2026-Q1 |
| Pertento Partners LLP added | 4,894,860 | $36M | 0.7% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 4,565,713 | $33M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 4,344,731 | $32M | 0.6% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 4,231,135 | $31M | 0.6% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 4,184,242 | $31M | 0.6% | 2026-Q1 |
| Rubric Capital Management LP trimmed | 3,746,848 | $27M | 0.5% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 3,568,902 | $26M | 0.5% | 2026-Q1 |
| CANYON CAPITAL ADVISORS LLC added | 3,499,874 | $26M | 0.5% | 2026-Q1 |
| Divisadero Street Capital Management, LP added | 3,389,927 | $25M | 0.5% | 2026-Q1 |
| Alta Park Capital, LP trimmed | 3,386,522 | $25M | 0.5% | 2026-Q1 |
| Verition Fund Management LLC added | 3,373,551 | $25M | 0.5% | 2026-Q1 |
| Nixon Capital, LLC added | 2,806,377 | $21M | 0.4% | 2026-Q1 |
| Bank of New York Mellon Corp added | 2,797,848 | $20M | 0.4% | 2026-Q1 |
| MORGAN STANLEY added | 2,783,635 | $20M | 0.4% | 2026-Q1 |
| RIVERNORTH CAPITAL MANAGEMENT, LLC new | 941 | $20M | 0.4% | 2026-Q1 |
| Gator Capital Management, LLC new | 2,704,973 | $20M | 0.4% | 2026-Q1 |
| Qube Research & Technologies Ltd added | 2,680,610 | $20M | 0.4% | 2026-Q1 |
| EMERALD ADVISERS, LLC added | 2,658,466 | $19M | 0.4% | 2026-Q1 |
| Castle Hook Partners LP added | 2,498,669 | $18M | 0.3% | 2026-Q1 |
| Driehaus Capital Management LLC trimmed | 2,429,213 | $18M | 0.3% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 2,383,059 | $17M | 0.3% | 2026-Q1 |
| Avala Global LP new | 2,107,997 | $15M | 0.3% | 2026-Q1 |
| Tensile Capital Management LP new | 1,997,399 | $15M | 0.3% | 2026-Q1 |
| TORONTO DOMINION BANK added | 1,988,249 | $15M | 0.3% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 1,974,574 | $14M | 0.3% | 2026-Q1 |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 1,956,328 | $14M | 0.3% | 2026-Q1 |
| Granahan Investment Management, LLC trimmed | 1,885,312 | $14M | 0.3% | 2026-Q1 |
| BANK OF MONTREAL /CAN/ added | 1,863,283 | $14M | 0.2% | 2026-Q1 |
| Pillsbury Lake Capital LLC added | 1,602,329 | $12M | 0.2% | 2026-Q1 |
| Steamboat Capital Partners, LLC added | 1,492,844 | $11M | 0.2% | 2026-Q1 |
| EMERALD MUTUAL FUND ADVISERS TRUST added | 1,462,683 | $11M | 0.2% | 2026-Q1 |
| CANADA PENSION PLAN INVESTMENT BOARD trimmed | 1,457,834 | $11M | 0.2% | 2026-Q1 |
| Clearline Capital LP new | 1,421,749 | $10M | 0.2% | 2026-Q1 |
| COOPER CREEK PARTNERS MANAGEMENT LLC new | 1,403,197 | $10M | 0.2% | 2026-Q1 |
| Holocene Advisors, LP new | 1,392,636 | $10M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 1,320,621 | $10M | 0.2% | 2026-Q1 |
| BWCP, LP added | 1,302,526 | $10M | 0.2% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 1,293,224 | $9M | 0.2% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC added | 1,286,723 | $9M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 1,271,937 | $9M | 0.2% | 2026-Q1 |
| Voleon Capital Management LP trimmed | 1,246,569 | $9M | 0.2% | 2026-Q1 |
| Invesco Ltd. added | 1,221,342 | $9M | 0.2% | 2026-Q1 |
| Long Pond Capital, LP trimmed | 1,216,711 | $9M | 0.2% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 1,174,947 | $9M | 0.2% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 1,152,718 | $8M | 0.2% | 2026-Q1 |
| Squarepoint Ops LLC added | 1,146,194 | $8M | 0.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP trimmed | 1,143,630 | $8M | 0.2% | 2026-Q1 |
| HENNESSY ADVISORS INC trimmed | 1,121,100 | $8M | 0.1% | 2026-Q1 |
| Lighthouse Investment Partners, LLC trimmed | 1,098,800 | $8M | 0.1% | 2026-Q1 |
| CIBC Bancorp USA Inc. added | 1,097,410 | $8M | 0.1% | 2026-Q1 |
| BANK OF NOVA SCOTIA new | 1,043,681 | $8M | 0.1% | 2026-Q1 |
| Metavasi Capital LP trimmed | 1,036,004 | $8M | 0.1% | 2026-Q1 |
| J. Goldman & Co LP added | 1,015,077 | $7M | 0.1% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 981,734 | $7M | 0.1% | 2026-Q1 |
| Union Square Park Capital Management, LLC | 667,287 | $7M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 73,187,153 | $774M | 14.2% | 2025-Q4 stale |
| Whale Rock Capital Management LLC new | 3,757,979 | $33M | 0.6% | 2025-Q1 stale |
| No Street GP LP trimmed | 3,375,000 | $21M | 0.4% | 2025-Q2 stale |
| Point72 Asset Management, L.P. added | 1,963,588 | $21M | 0.4% | 2025-Q4 stale |
| Luxor Capital Group, LP trimmed | 1,864,974 | $20M | 0.4% | 2025-Q4 stale |
| TIG Advisors, LLC added | 1,837,781 | $19M | 0.4% | 2025-Q4 stale |
| PSquared Asset Management AG new | 1,751,304 | $19M | 0.3% | 2025-Q4 stale |
| Nearwater Capital Markets, Ltd new | 1,724,700 | $18M | 0.3% | 2025-Q4 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 1,665,000 | $18M | 0.3% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP added | 1,414,200 | $15M | 0.3% | 2025-Q4 stale |
| FRED ALGER MANAGEMENT, LLC trimmed | 1,270,563 | $13M | 0.2% | 2025-Q4 stale |
| Jain Global LLC added | 1,138,635 | $12M | 0.2% | 2025-Q4 stale |
| Barrier Capital Management, LLC new | 952,074 | $10M | 0.2% | 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.