Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in CMPS held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Deep Track Capital, LP | 12.2M | $67.3M | +65.8% | 12.657% | 1.39% |
| 2 | RTW INVESTMENTS, LP | 10.6M | $58.8M | +21.4% | 11.066% | 0.59% |
| 3 | MARSHALL WACE, LLP | 4.0M | $22.3M | β | 4.203% | 0.02% |
| 4 | TANG CAPITAL MANAGEMENT LLC | 4.0M | $22.1M | β | 4.165% | 1.12% |
| 5 | Caption Management, LLC | 3.6M | $20.0M | β | 3.757% | 0.19% |
| 6 | BIT Capital GmbH | 3.5M | $19.3M | +1108.8% | 3.633% | 0.94% |
| 7 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 3.4M | $18.7M | +111.2% | 3.526% | 0.00% |
| 8 | ARK Investment Management LLC | 3.3M | $18.3M | +53.1% | 3.435% | 0.14% |
| 9 | MILLENNIUM MANAGEMENT LLC | 3.1M | $17.4M | +126.2% | 3.266% | 0.01% |
| 10 | GMT CAPITAL CORP | 3.1M | $17.0M | +8.2% | 3.204% | 0.78% |
| 11 | TWO SIGMA INVESTMENTS, LP | 2.6M | $14.3M | +57.1% | 2.689% | 0.01% |
| 12 | DAFNA Capital Management LLC | 2.4M | $13.4M | +198.2% | 2.517% | 3.04% |
| 13 | BAKER BROS. ADVISORS LP | 2.3M | $13.0M | β | 2.440% | 0.07% |
| 14 | Eagle Health Investments LP | 2.1M | $11.4M | +35.6% | 2.144% | 2.38% |
| 15 | NEXTBio Capital Management LP | 2.0M | $11.2M | +168.6% | 2.104% | 5.19% |
| 16 | UBS Group AG | 1.9M | $10.3M | -9.0% | 1.931% | 0.00% |
| 17 | Sio Capital Management, LLC | 1.5M | $8.3M | β | 1.568% | 1.20% |
| 18 | HEIGHTS CAPITAL MANAGEMENT, INC | 1.5M | $8.3M | β | 1.553% | 2.31% |
| 19 | Jefferies Financial Group Inc. | 1.5M | $8.1M | -7.0% | 1.527% | 0.06% |
| 20 | Aisling Capital Management LP | 1.4M | $7.9M | +19.5% | 1.491% | 1.66% |
| 21 | PFM Health Sciences, LP | 1.4M | $7.6M | +75.3% | 1.423% | 0.75% |
| 22 | MORGAN STANLEY | 1.2M | $6.7M | +6.0% | 1.255% | 0.00% |
| 23 | ORBIMED ADVISORS LLC | 1.2M | $6.4M | β | 1.198% | 0.13% |
| 24 | Affinity Asset Advisors, LLC | 1.1M | $6.1M | +454.2% | 1.154% | 0.36% |
| 25 | Ally Bridge Group (NY) LLC | 1.0M | $5.8M | β | 1.088% | 5.38% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in CMPS β a direct measure of their conviction.
Filings activity in CMPS during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 185 | +13% | 45.50% | +12.33 pp | $528M | +37% |
| Q4 2025 | 163 | +7.2% | 33.17% | +4.49 pp | $385M | +16% |
| Q3 2025 | 152 | +11% | 28.68% | +16.66 pp | $333M | +139% |
| Q2 2025 | 137 | +3.8% | 12.02% | 0.38 pp | $140M | 3.1% |
| Q1 2025 | 132 | +3.9% | 12.40% | +2.90 pp | $144M | +31% |
| Q4 2024 | 127 | +0.8% | 9.50% | 5.45 pp | $110M | 36% |
| Q3 2024 | 126 | +7.7% | 14.95% | +4.09 pp | $174M | +38% |
| Q2 2024 | 117 | β | 10.86% | β | $126M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying CMPS stock.
Based on Q1 2026 13F filings, institutional ownership of COMPASS Pathways plc stands at 45.5%, held across 185 reporting institutions.
Deep Track Capital, LP is the largest reported institutional holder of CMPS, with approximately 12,161,496 shares worth $0.07B as of Q1 2026.
Yes β 4 widely-followed marquee investors appear among the top 25 institutional holders of CMPS, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, ARK Investment Management LLC, MILLENNIUM MANAGEMENT LLC, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for CMPS is 75 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
54 institutions opened new positions in CMPS during Q1 2026, while 32 fully exited. 45 added to existing positions and 84 trimmed.
CMPS institutional ownership rose by 12.33 percentage points quarter-over-quarter, with a net change of +22 holders.
The top 10 institutions account for 53.2% of all reported 13F value in CMPS, and the top 25 account for 79.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
COMPASS Pathways plc (CMPS) Institutional Ownership