| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| RTW INVESTMENTS, LP | 9.9% | +20% | $45,571,850 | +$7,681,801 | 9,474,397 | +20% | RTW Investments, LP | 30 Jun 2025 |
| Deep Track Capital, LP | 10% | $26,432,579 | 9,274,589 | Deep Track Capital, LP | 10 Jan 2025 | |||
| ATAI Life Sciences N.V. | 6% | -19% | $33,152,485 | -$6,417,600 | 5,785,774 | -16% | ATAI Life Sciences N.V. | 27 Oct 2025 |
| TCG Crossover GP I, LLC | 3.9% | $18,556,980 | 3,858,000 | Chen Yu | 30 Jun 2025 | |||
| Nantahala Capital Management, LLC | 3.6% | -44% | $19,965,125 | -$14,038,500 | 3,484,315 | -41% | Nantahala Capital Management, LLC | 30 Sep 2025 |
| Vivo Opportunity Fund Holdings, L.P. | 3.2% | -49% | $18,189,851 | -$18,189,851 | 3,174,494 | -50% | Vivo Opportunity Fund Holdings, L.P. | 30 Sep 2025 |
| INTEGRATED CORE STRATEGIES (US) LLC | 3% | -18% | $7,904,535 | -$1,823,792 | 2,773,521 | -19% | Millennium Management LLC | 31 Mar 2025 |
| Goldsmith George Jay | 2.4% | -6.7% | $6,383,493 | -$368,602 | 2,239,822 | -5.5% | George Jay Goldsmith | 31 Mar 2025 |
| CITADEL ADVISORS LLC | 1.7% | $3,324,742 | 1,166,576 | Kenneth Griffin | 31 Dec 2024 |
As of 30 Sep 2025, 155 institutional investors reported holding 55,478,245 shares of COMPASS Pathways plc - Ordinary Shares, par value (pound)0.008 per share, represented by American Depositary Shares (CMPS). This represents 56% of the company’s total 99,202,938 outstanding shares.
The largest institutional shareholders of COMPASS Pathways plc - Ordinary Shares, par value (pound)0.008 per share, represented by American Depositary Shares (CMPS) together control 47% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| RTW INVESTMENTS, LP | 8.8% | 8,707,390 | +5.9% | 0.61% | $49,893,345 |
| Deep Track Capital, LP | 7.9% | 7,859,648 | -11% | 1.3% | $45,035,783 |
| GMT CAPITAL CORP | 2.9% | 2,844,618 | +60% | 0.74% | $16,299,661 |
| MILLENNIUM MANAGEMENT LLC | 2.7% | 2,715,872 | +56% | 0.01% | $15,561,947 |
| TANG CAPITAL MANAGEMENT LLC | 2.2% | 2,200,000 | +69% | 0.49% | $12,606,000 |
| UBS Group AG | 2.2% | 2,144,410 | +28% | 0% | $12,287,470 |
| ARK Investment Management LLC | 2.1% | 2,121,118 | +29% | 0.07% | $12,154,003 |
| Nantahala Capital Management, LLC | 1.7% | 1,729,930 | -59% | 0.61% | $9,912,499 |
| PFM Health Sciences, LP | 1.7% | 1,662,836 | -6.5% | 0.81% | $9,528,050 |
| Jefferies Financial Group Inc. | 1.4% | 1,376,905 | 0.07% | $7,889,666 | |
| HSBC HOLDINGS PLC | 1.3% | 1,255,084 | +17% | 0% | $7,191,627 |
| AMERIPRISE FINANCIAL INC | 1.2% | 1,208,784 | 0% | $6,926,332 | |
| Aisling Capital Management LP | 1.2% | 1,198,418 | 0% | 1.5% | $6,866,935 |
| TWO SIGMA INVESTMENTS, LP | 1.1% | 1,075,277 | +838% | 0.01% | $6,161,337 |
| MORGAN STANLEY | 1% | 1,030,305 | +288% | 0% | $5,903,649 |
| Ally Bridge Group (NY) LLC | 1% | 1,026,382 | -31% | 4.9% | $5,881,169 |
| TORONTO DOMINION BANK | 1% | 1,000,000 | +100% | 0.01% | $5,730,000 |
| RENAISSANCE TECHNOLOGIES LLC | 0.96% | 951,200 | +347% | 0.01% | $5,450,376 |
| Eagle Health Investments LP | 0.94% | 935,450 | 1.4% | $5,360,129 | |
| DAFNA Capital Management LLC | 0.82% | 811,046 | 0% | 1.1% | $4,647,294 |
| D. E. Shaw & Co., Inc. | 0.68% | 678,792 | 0% | $3,889,478 | |
| CenterBook Partners LP | 0.64% | 636,155 | 0.18% | $3,645,168 | |
| Blue Owl Capital Holdings LP | 0.61% | 604,914 | +163% | 1.1% | $3,466,157 |
| SCHRODER INVESTMENT MANAGEMENT GROUP | 0.58% | 570,462 | +4.7% | 0% | $3,348,612 |
| TWO SIGMA ADVISERS, LP | 0.55% | 548,500 | 0.01% | $3,142,905 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 596,636 | $4,116,643 | +$1,818,551 | $6.90 | 9 |
| 2025 Q3 | 55,478,245 | $317,955,786 | +$43,720,755 | $5.73 | 155 |
| 2025 Q2 | 51,747,093 | $145,141,846 | -$683,458 | $2.80 | 139 |
| 2025 Q1 | 51,907,228 | $148,440,425 | +$56,949,028 | $2.86 | 133 |
| 2024 Q4 | 30,909,295 | $116,833,020 | -$20,902,989 | $3.78 | 127 |
| 2024 Q3 | 32,763,631 | $206,366,959 | +$27,403,892 | $6.30 | 128 |
| 2024 Q2 | 28,409,803 | $171,575,414 | +$1,890,824 | $6.04 | 116 |
| 2024 Q1 | 27,439,336 | $227,960,108 | +$40,155,930 | $8.32 | 113 |
| 2023 Q4 | 42,400 | $371,000 | +$371,000 | $8.75 | 1 |
| 2023 Q3 | 22,183,957 | $164,154,677 | +$103,897,195 | $7.40 | 100 |
| 2023 Q2 | 8,289,479 | $68,640,806 | +$757,550 | $8.28 | 90 |
| 2023 Q1 | 8,180,127 | $81,254,171 | +$5,747,756 | $9.93 | 93 |
| 2022 Q4 | 7,593,566 | $60,972,808 | -$1,345,745 | $8.03 | 96 |
| 2022 Q3 | 7,266,467 | $78,019,982 | +$7,092,437 | $10.73 | 88 |
| 2022 Q2 | 6,570,965 | $71,022,339 | -$6,937,560 | $10.82 | 80 |
| 2022 Q1 | 7,518,024 | $96,901,425 | -$7,948,786 | $12.89 | 79 |
| 2021 Q4 | 7,533,225 | $166,476,540 | -$10,200,794 | $22.10 | 106 |
| 2021 Q3 | 7,377,976 | $220,540,821 | -$10,823,258 | $29.87 | 107 |
| 2021 Q2 | 7,479,688 | $285,238,363 | +$111,491,670 | $38.15 | 102 |
| 2021 Q1 | 4,509,177 | $166,012,519 | -$36,766,084 | $36.82 | 76 |
| 2020 Q4 | 5,395,586 | $257,081,627 | -$22,637,467 | $47.64 | 53 |
| 2020 Q3 | 5,493,873 | $192,316,000 | +$192,278,030 | $34.90 | 37 |
| 2020 Q2 | 1,000 | $38,000 | $0 | $38.00 | 1 |
| 2020 Q1 | 1,000 | $38,000 | $0 | $38.00 | 1 |
| 2019 Q4 | 1,000 | $38,000 | $0 | $38.00 | 1 |
| 2019 Q3 | 1,000 | $38,000 | $0 | $38.00 | 1 |
| 2019 Q2 | 1,000 | $38,000 | $0 | $38.00 | 1 |
| 2019 Q1 | 1,000 | $38,000 | $0 | $38.00 | 1 |