CMPS · COMPASS Pathways plc · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 226 13F filersWho Holds CMPS
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 224 filers, like-for-like change -3.0%; actively managed books -2.8%; index-like books -7.7%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 49.1% | 122 | -8.2% |
| Exempt adviser | 6.6% | 6 | -0.1% |
| Adviser | 14.8% | 7 | -9.4% |
| Bank | 5.4% | 15 | +58.4% |
| Broker-dealer | 0.2% | 2 | -4.1% |
| Non-US | 7.0% | 5 | +81.5% |
| Holding company | 3.2% | 5 | -21.8% |
| Benefit plan | 0.0% | 0 | — |
| Unknown | 13.7% | 62 | -9.4% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 3.1% | 10 | -7.7% |
| Systematic-like | 14.4% | 26 | +28.6% |
| Concentrated | 22.9% | 46 | -11.7% |
| Diversified active | 59.6% | 141 | -4.7% |
| Unknown | 0.0% | 1 | 0.0% |
| Not measured | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 10.9% | 101 | -23.9% |
| Medium turnover | 49.1% | 50 | -3.2% |
| High turnover | 34.4% | 54 | +5.1% |
| Unknown | 5.6% | 19 | +8.2% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 8.7% | 40 | -35.0% |
| Medium horizon | 31.0% | 35 | +12.9% |
| Long horizon | 36.6% | 123 | -3.5% |
| Unknown | 23.7% | 26 | -4.0% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 15.3% | 71 | -23.7% |
| $1B to $10B | 35.0% | 72 | -6.7% |
| $10B to $100B | 28.8% | 45 | +12.5% |
| $100B or more | 21.0% | 36 | +5.0% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 1.0% | 60 | +31.9% |
| Pooled investment vehicles | 41.6% | 42 | -12.5% |
| Registered funds and BDCs | 5.1% | 10 | +9.9% |
| Pension and profit sharing plans | 0.0% | 0 | — |
| Governments and sovereign funds | 1.0% | 2 | +174.2% |
| Corporations | 0.0% | 1 | 0.0% |
| Other investment advisers | 0.0% | 3 | +303.7% |
| Diversified | 0.1% | 3 | new |
| Unknown | 51.2% | 103 | +3.1% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 45.1% | 42 | -11.1% |
| Private equity funds | 1.8% | 4 | -12.6% |
| Venture capital funds | 3.1% | 4 | +279.6% |
| Real estate funds | 0.0% | 2 | +247.0% |
| Other private funds | 3.3% | 9 | -0.1% |
| Mixed private funds | 0.6% | 2 | -67.2% |
| Private funds, type not stated | 0.1% | 2 | -27.4% |
| No private funds | 1.7% | 63 | +68.2% |
| Unknown | 44.3% | 96 | +2.8% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 81.4% | 190 | -8.3% |
| Outside the US | 18.6% | 34 | +32.0% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 3 holders with no observed 2026-03-31 13F and 3 holders with no observed 2026-06-30 13F.
Conviction and Crowding
224 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net sellers of $861,493 (0 buying, 2 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 95.0% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies CMPS's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | DFTX Definium Therapeutics, Inc. | 17 |
| 2 | CLDX Celldex Therapeutics, Inc. | 13 |
| 3 | QURE uniQure N.V. | 15 |
| 4 | IMCR Immunocore Holdings plc | 9 |
| 5 | IMVT Immunovant, Inc. | 9 |
| 6 | XENE Xenon Pharmaceuticals Inc. | 13 |
| 7 | GPCR Structure Therapeutics Inc. | 12 |
| 8 | RARE Ultragenyx Pharmaceutical Inc. | 10 |
| 9 | DNTH Dianthus Therapeutics, Inc. | 12 |
| 10 | PRQR ProQR Therapeutics N.V. | 7 |
Shareholder Targets
13F filers that own its peers but not CMPS, quarter ended Jun 30, 2026Found through its holder-overlap peers: DFTX, CLDX, QURE, IMCR, IMVT, XENE, GPCR, RARE, DNTH, PRQR, TARS, ABVX, CELC, PALI, ALKS, PTGX, OBIO, MLYS, CBIO, GHRS. 880 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | FMR LLC Holding company, Diversified active | $3,625,111,940 19 held | DNTH, IMVT, XENE |
| 2 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $2,225,331,411 16 held | PTGX, GPCR, CLDX |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like | $1,886,643,693 15 held | ALKS, PTGX, DNTH |
| 4 | PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser, Diversified active | $1,870,310,919 18 held | ALKS, PTGX, DNTH |
| 5 | BAKER BROS. ADVISORS LP Registered adviser, Concentrated | $1,788,515,461 7 held | CELC, ALKS, IMVT |
| 6 | Avoro Capital Advisors LLC Registered adviser, Concentrated | $1,752,721,954 6 held | CELC, GPCR, XENE |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser, Diversified active | $1,627,421,236 15 held | ALKS, PTGX, RARE |
| 8 | Jupiter Topco LLC Unknown, Diversified active | $1,544,607,096 16 held | GPCR, DFTX, PTGX |
| 9 | TCG Crossover Management, LLC Unknown, Diversified active | $1,135,807,542 3 held | ABVX, IMVT, DNTH |
| 10 | FARALLON CAPITAL MANAGEMENT LLC Registered adviser, Diversified active | $1,018,173,267 3 held | PTGX, IMVT, ABVX |
Fund Ownership of CMPS by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 0.69% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 0.05% | 62,962 |
| Index ETFs | 0.65% | 895,715 |
| Active ETFs | 2.78% | 3,851,704 |
| Active funds | 0.61% | 840,782 |
| Unclassified | 0.02% | 21,455 |
| All registered funds | 4.10% | 5,672,618 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mid Deep Track Capital, LP Adviser | $172,085,168 | 12.57% | 12,161,496 | Shares | 2026-08-14 | |
| Large RTW INVESTMENTS, LP Registered adviser | $151,418,782 | 11.06% | 10,700,974 | Shares | 2026-08-14 | |
| Mid BIT Capital GmbH Non-US | $89,835,477 | 6.56% | 6,348,797 | Shares | 2026-08-12 | |
| Mid TANG CAPITAL MANAGEMENT LLC | $70,750,000 | 5.17% | 5,000,000 | Shares | 2026-08-14 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $63,257,362 | 4.62% | 4,470,485 | Shares | 2026-08-14 | |
| Mega MARSHALL WACE, LLP Exempt adviser | $61,250,849 | 4.47% | 4,328,682 | Shares | 2026-08-13 | |
| Large ARK Investment Management LLC Registered adviser | $48,845,304 | 3.57% | 3,451,965 | Shares | 2026-08-14 | |
| Large Point72 Asset Management, L.P. Registered adviser | $37,085,423 | 2.71% | 2,620,878 | Shares | 2026-08-14 | |
| Mid Logos Global Management LP Registered adviser | $31,837,500 | 2.33% | 2,250,000 | Shares | 2026-08-14 | |
| Small Eagle Health Investments LP Registered adviser | $29,155,042 | 2.13% | 2,060,427 | Shares | 2026-08-10 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $28,573,773 | 2.09% | 2,019,348 | Shares | 2026-08-14 | |
| Small DAFNA Capital Management LLC Registered adviser | $28,469,120 | 2.08% | 2,011,952 | Shares | 2026-08-14 | |
| Large Caption Management, LLC Registered adviser | $27,544,390 | 2.01% | 1,946,600 | Call | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $26,855,285 | 1.96% | 1,897,900 | Call | 2026-08-14 | |
| Small NEXTBio Capital Management LP | $25,126,989 | 1.84% | 1,775,759 | Shares | 2026-08-14 | |
| Mega UBS Group AG Bank | $20,976,949 | 1.53% | 1,482,470 | Shares | 2026-08-13 | |
| Small Aisling Capital Management LP Registered adviser | $20,267,554 | 1.48% | 1,432,336 | Shares | 2026-08-13 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $20,261,229 | 1.48% | 1,431,889 | Shares | 2026-08-13 | |
| Large Candriam S.C.A. Registered adviser | $18,031,033 | 1.32% | 1,274,278 | Shares | 2026-08-13 | |
| Large Woodline Partners LP Registered adviser | $15,366,956 | 1.12% | 1,086,004 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $14,219,051 | 1.04% | 1,004,880 | Shares | 2026-09-02 | |
| Large Jefferies Financial Group Inc. Holding company | $14,070,660 | 1.03% | 994,393 | Shares | 2026-08-17 | |
| Mega BlackRock, Inc. Holding company | $13,094,279 | 0.96% | 925,391 | Shares | 2026-08-07 | |
| Large Trexquant Investment LP Registered adviser | $12,171,235 | 0.89% | 860,158 | Shares | 2026-08-14 | |
| Small Kalehua Capital Management LLC Exempt adviser | $11,598,641 | 0.85% | 819,692 | Shares | 2026-08-19 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $10,909,466 | 0.80% | 770,987 | Shares | 2026-08-14 | |
| Large Caption Management, LLC Registered adviser | $10,699,041 | 0.78% | 756,116 | Shares | 2026-08-14 | |
| Mid Axxion S.A. | $10,503,763 | 0.77% | 844,354 | Shares | 2026-10-22 | |
| Small Occam Crest Management LP | $10,046,500 | 0.73% | 710,000 | Shares | 2026-08-14 | |
| Mid Eversept Partners, LP Registered adviser | $9,520,473 | 0.70% | 672,825 | Shares | 2026-08-14 | |
| Mega MORGAN STANLEY Holding company | $8,417,918 | 0.61% | 594,906 | Shares | 2026-08-13 | |
| Small Propel Bio Management, LLC Registered adviser | $8,109,166 | 0.59% | 573,086 | Shares | 2026-08-13 | |
| Small Creek Drive Management Group LLC | $8,093,800 | 0.59% | 572,000 | Shares | 2026-08-13 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $7,567,420 | 0.55% | 534,800 | Call | 2026-09-02 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $7,140,090 | 0.52% | 504,600 | Put | 2026-08-14 | |
| Small SILVERARC CAPITAL MANAGEMENT, LLC Registered adviser | $7,122,855 | 0.52% | 503,382 | Shares | 2026-08-13 | |
| Mega JANE STREET GROUP, LLC | $7,102,308 | 0.52% | 501,930 | Shares | 2026-08-14 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $7,070,415 | 0.52% | 499,676 | Shares | 2026-08-14 | |
| Large Walleye Capital LLC Registered adviser | $6,893,384 | 0.50% | 487,165 | Shares | 2026-08-03 | |
| Large Ensign Peak Advisors, Inc | $6,716,339 | 0.49% | 474,653 | Shares | 2026-08-14 | |
| Small Blue Owl Capital Holdings LP Adviser | $6,367,500 | 0.47% | 450,000 | Shares | 2026-08-11 | |
| Small AdvisorShares Investments LLC Registered adviser | $5,962,060 | 0.44% | 421,347 | Shares | 2026-08-11 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $5,540,956 | 0.40% | 391,587 | Shares | 2026-08-14 | |
| Mid LANDSCAPE CAPITAL MANAGEMENT, L.L.C. Registered adviser | $5,438,565 | 0.40% | 384,351 | Shares | 2026-08-12 | |
| Mid Hennion & Walsh Asset Management, Inc. Adviser | $5,383,322 | 0.39% | 432,743 | Shares | 2026-10-13 | |
| Small HighVista Strategies LLC Registered adviser | $5,251,348 | 0.38% | 371,120 | Shares | 2026-08-14 | |
| Mega Legal & General Group Plc | $4,700,714 | 0.34% | 332,206 | Shares | 2026-08-14 | |
| Mega Sumitomo Mitsui Trust Group, Inc. Bank | $4,573,407 | 0.33% | 323,209 | Shares | 2026-07-30 | |
| Mid Amova Asset Management Americas, Inc. Registered adviser | $4,520,528 | 0.33% | 319,472 | Shares | 2026-08-13 | |
| Small Squadron Capital Management LLC Registered adviser | $4,315,750 | 0.32% | 305,000 | Call | 2026-08-14 | |
| Mid Affinity Asset Advisors, LLC Registered adviser | $4,261,739 | 0.31% | 301,183 | Shares | 2026-08-13 | |
| Mid SEVEN GRAND MANAGERS, LLC Registered adviser | $4,245,000 | 0.31% | 300,000 | Shares | 2026-08-14 | |
| Small Squadron Capital Management LLC Registered adviser | $4,245,000 | 0.31% | 300,000 | Shares | 2026-08-14 | |
| Large ADAGE CAPITAL PARTNERS GP, L.L.C. Registered adviser | $4,245,000 | 0.31% | 300,000 | Shares | 2026-08-14 | |
| Mega ROYAL BANK OF CANADA Bank | $4,242,281 | 0.31% | 299,808 | Shares | 2026-08-14 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $4,131,091 | 0.30% | 291,950 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $4,079,445 | 0.30% | 288,300 | Call | 2026-08-14 | |
| Small STEMPOINT CAPITAL LP Registered adviser | $4,029,481 | 0.29% | 284,769 | Shares | 2026-08-14 | |
| Large TORONTO DOMINION BANK Bank | $3,930,233 | 0.29% | 277,755 | Shares | 2026-08-14 | |
| Large ROYCE & ASSOCIATES LP Registered adviser | $3,778,884 | 0.28% | 267,059 | Shares | 2026-08-14 | |
| Large Jump Financial, LLC | $3,701,866 | 0.27% | 261,616 | Shares | 2026-08-13 | |
| Mid PFM Health Sciences, LP Registered adviser | $3,503,384 | 0.26% | 247,589 | Shares | 2026-08-14 | |
| Mega D. E. Shaw & Co., Inc. | $3,408,367 | 0.25% | 240,874 | Shares | 2026-08-14 | |
| Small Brown University | $3,030,930 | 0.22% | 214,200 | Shares | 2026-08-05 | |
| Large Caption Management, LLC Registered adviser | $2,950,275 | 0.22% | 208,500 | Put | 2026-08-14 | |
| Small HEIGHTS CAPITAL MANAGEMENT, INC | $2,913,937 | 0.21% | 205,932 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $2,695,575 | 0.20% | 190,500 | Put | 2026-09-02 | |
| Mid IQ EQ FUND MANAGEMENT (IRELAND) Ltd Exempt adviser | $2,481,527 | 0.18% | 175,373 | Shares | 2026-07-31 | |
| Mid Engineers Gate Manager LP | $2,432,342 | 0.18% | 171,897 | Shares | 2026-08-14 | |
| Mid DISCOVERY CAPITAL MANAGEMENT, LLC / CT Registered adviser | $2,122,500 | 0.16% | 150,000 | Shares | 2026-08-14 | |
| Large HRT FINANCIAL LP | $2,067,697 | 0.15% | 146,127 | Shares | 2026-08-14 | |
| Large Squarepoint Ops LLC Registered adviser | $1,962,194 | 0.14% | 138,671 | Shares | 2026-08-14 | |
| Large Balyasny Asset Management L.P. Registered adviser | $1,959,492 | 0.14% | 138,480 | Shares | 2026-08-14 | |
| Large ALPS ADVISORS INC Registered adviser | $1,930,937 | 0.14% | 136,462 | Shares | 2026-07-29 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $1,919,178 | 0.14% | 135,631 | Shares | 2026-08-14 | |
| Small K2 PRINCIPAL FUND, L.P. | $1,911,665 | 0.14% | 135,100 | Shares | 2026-08-07 | |
| Mid CenterBook Partners LP Registered adviser | $1,777,155 | 0.13% | 125,594 | Shares | 2026-08-11 | |
| Small Creek Drive Management Group LLC | $1,698,000 | 0.12% | 120,000 | Call | 2026-08-13 | |
| Mega BANK OF MONTREAL /CAN/ Bank | $1,686,991 | 0.12% | 119,222 | Shares | 2026-08-12 | |
| Mega ENVESTNET ASSET MANAGEMENT INC Registered adviser | $1,639,121 | 0.12% | 115,839 | Shares | 2026-09-23 | |
| Small Palo Alto Investors LP Registered adviser | $1,635,966 | 0.12% | 115,616 | Shares | 2026-08-19 | |
| Mid Simplify Asset Management Inc. Registered adviser | $1,617,076 | 0.12% | 114,281 | Shares | 2026-07-16 | |
| Mid Diversify Advisory Services, LLC Registered adviser | $1,609,387 | 0.12% | 129,372 | Shares | 2026-10-20 | |
| Mid DIVERSIFY WEALTH MANAGEMENT, LLC Registered adviser | $1,609,387 | 0.12% | 129,372 | Shares | 2026-10-20 | |
| Mega LPL Financial LLC Broker-dealer | $1,550,387 | 0.11% | 109,568 | Shares | 2026-08-07 | |
| Mid GROUP ONE TRADING LLC Broker-dealer | $1,390,916 | 0.10% | 98,298 | Shares | 2026-08-14 | |
| Mid Susquehanna Portfolio Strategies, LLC | $1,341,448 | 0.10% | 94,802 | Shares | 2026-08-14 | |
| Mid CreativeOne Wealth, LLC Registered adviser | $1,336,311 | 0.10% | 94,439 | Shares | 2026-08-13 | |
| Mega STATE STREET CORP Bank | $1,150,097 | 0.08% | 81,279 | Shares | 2026-09-22 | |
| Micro Lion Point Capital, LP Registered adviser | $1,132,000 | 0.08% | 80,000 | Shares | 2026-08-14 | |
| Small Maxi Investments CY Ltd | $1,069,840 | 0.08% | 86,000 | Shares | 2026-10-26 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $1,063,896 | 0.08% | 75,187 | Shares | 2026-08-12 | |
| Small DLD Asset Management, LP Registered adviser | $990,500 | 0.07% | 70,000 | Put | 2026-08-13 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $941,852 | 0.07% | 66,562 | Shares | 2026-08-14 | |
| Mid Aquatic Capital Management LLC Registered adviser | $922,297 | 0.07% | 65,180 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $915,505 | 0.07% | 64,700 | Put | 2026-08-14 | |
| Small Dorsey Wright & Associates Registered adviser | $883,653 | 0.06% | 62,449 | Shares | 2026-08-06 | |
| Mid Campbell & CO Investment Adviser LLC Registered adviser | $874,696 | 0.06% | 61,816 | Shares | 2026-08-03 | |
| Mega STIFEL FINANCIAL CORP | $855,636 | 0.06% | 60,469 | Shares | 2026-08-12 | |
| Small Intellectus Partners, LLC Registered adviser | $841,925 | 0.06% | 59,500 | Shares | 2026-08-12 |
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