CMPS · Insider trading · 13F holders · Congress trades
COMPASS Pathways plc (CMPS)
Who is buying and selling CMPS: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 32
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 1
CMPS at a glance
- No open-market insider purchases or sales of CMPS were filed in the last 90 days.
- 32 13F filers hold CMPS among their 50 largest positions, worth $729.2M combined. The biggest bets by portfolio weight are NEXTBio Capital Management LP (11.6%), Kalehua Capital Management LLC (8.3%) and DAFNA Capital Management LLC (5.4%). In their latest 13Fs, 2 managers opened a new position and 5 added to one.
- Members of Congress have disclosed 1 CMPS trade since 2023, 0 purchases and 1 sale in the past year; the latest was Shri Thanedar (D-MI), selling $1K–15K on Jan 23, 2023.
- CMPS last closed at $11.70 on Oct 30, 2026.
CMPS insider trading
No open-market insider purchases or sales of CMPS were filed in the last 90 days.
Who owns CMPS? Hedge funds and superinvestors
32 13F filers hold CMPS among their 50 largest positions, worth $729.2M combined. The biggest bets by portfolio weight are NEXTBio Capital Management LP (11.6%), Kalehua Capital Management LLC (8.3%) and DAFNA Capital Management LLC (5.4%). In their latest 13Fs, 2 managers opened a new position and 5 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Deep Track Capital, LPHedge fund | 2.5% | $172.1M | 12,161,496 | +0.0% shares | Q2 2026 |
| Rtw Investments, LPHedge fund | 1.3% | $151.4M | 10,700,974 | +0.6% shares | Q2 2026 |
| BIT Capital GmbHAsset manager | 3.1% | $89.8M | 6,348,797 | +81.8% shares | Q2 2026 |
| Tang Capital Management LLCHedge fund | 3.2% | $70.8M | 5,000,000 | +24.9% shares | Q2 2026 |
| Logos Global Management LPHedge fund | 1.4% | $31.8M | 2,250,000 | — | Q2 2026 |
| Eagle Health Investments LPHedge fund | 4.8% | $29.2M | 2,060,427 | +0.0% shares | Q2 2026 |
| DAFNA Capital Management LLCHedge fund | 5.4% | $28.5M | 2,011,952 | -16.8% shares | Q2 2026 |
| NEXTBio Capital Management LPHedge fund | 11.6% | $25.1M | 1,775,759 | -12.2% shares | Q2 2026 |
| Aisling Capital Management LPHedge fund | 4.3% | $20.3M | 1,432,336 | +0.0% shares | Q2 2026 |
| Kalehua Capital Management LLCHedge fund | 8.3% | $11.6M | 819,692 | +0.0% shares | Q2 2026 |
| Caption Management, LLCHedge fund | 0.4% | $10.7M | 756,116 | -53.0% shares | Q2 2026 |
| Axxion S.A.Investment manager | 0.7% | $10.5M | 844,354 | +16.1% shares | Q3 2026 |
| Eversept Partners, LPHedge fund | 0.5% | $9.5M | 672,825 | — | Q2 2026 |
| Propel Bio Management, LLCHedge fund | 4.2% | $8.1M | 573,086 | -22.8% shares | Q2 2026 |
| Creek Drive Management Group LLCHedge fund | 5.0% | $8.1M | 572,000 | -30.7% shares | Q2 2026 |
| Occam Crest Management LPHedge fund | 4.3% | $7.7M | 710,000 | New | Q2 2026 |
| Silverarc Capital Management, LLCHedge fund | 0.8% | $7.1M | 503,382 | — | Q2 2026 |
| Blue Owl Capital Holdings LPHedge fund | 1.0% | $6.4M | 450,000 | — | Q2 2026 |
| AdvisorShares Investments LLCMutual fund manager | 0.7% | $6.0M | 421,347 | — | Q2 2026 |
| HighVista Strategies LLCHedge fund | 1.2% | $5.3M | 371,120 | — | Q2 2026 |
| Squadron Capital Management LLCHedge fund | 1.5% | $4.2M | 300,000 | New | Q2 2026 |
| Stempoint Capital LPHedge fund | 0.7% | $4.0M | 284,769 | — | Q2 2026 |
| Brown UniversityEndowment & foundation | 3.2% | $3.0M | 214,200 | +0.0% shares | Q2 2026 |
| Heights Capital Management, IncAsset manager | 0.7% | $2.9M | 205,932 | -86.2% shares | Q2 2026 |
| Palo Alto Investors LPHedge fund | 0.2% | $1.6M | 115,616 | +0.0% shares | Q2 2026 |
| Lion Point Capital, LPHedge fund | 5.4% | $1.1M | 80,000 | +0.0% shares | Q2 2026 |
| Fore Capital, LLCAsset manager | 2.0% | $637K | 45,000 | +0.0% shares | Q2 2026 |
| Mount Vernon Associates Inc /md/Investment manager | 0.4% | $566K | 45,500 | +19.7% shares | Q3 2026 |
| Act Capital Management, LLCHedge fund | 0.3% | $425K | 30,000 | — | Q2 2026 |
| Flax Pond Capital, LLCWealth manager | 0.3% | $319K | 57,666 | +9.7% shares | Q2 2026 |
The 30 largest of 32 positions, by value. Each manager counts with its latest 13F (Q3 2026: 3, Q2 2026: 29). Screen CMPS in the grand portfolio →
CMPS stock trades by members of Congress
Members of Congress have disclosed 1 CMPS trade since 2023, 0 purchases and 1 sale in the past year; the latest was Shri Thanedar (D-MI), selling $1K–15K on Jan 23, 2023.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Feb 9, 2023 | Shri ThanedarD-MI · House | Sale | $1K–15K | Jan 23, 2023 | +12.5% |
CMPS questions and answers
Are insiders buying CMPS stock?
No open-market insider purchases or sales of CMPS were filed in the last 90 days.
Which hedge funds own CMPS?
32 13F filers hold CMPS among their 50 largest positions, worth $729.2M combined. The biggest bets by portfolio weight are NEXTBio Capital Management LP (11.6%), Kalehua Capital Management LLC (8.3%) and DAFNA Capital Management LLC (5.4%). In their latest 13Fs, 2 managers opened a new position and 5 added to one.
Has Congress traded CMPS?
Members of Congress have disclosed 1 CMPS trade since 2023, 0 purchases and 1 sale in the past year; the latest was Shri Thanedar (D-MI), selling $1K–15K on Jan 23, 2023.
Who is the largest holder of CMPS?
Among 13F filers, Deep Track Capital, LP reports the largest CMPS position, $172.1M (12,161,496 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is NEXTBio Capital Management LP's: 11.6% of its portfolio.
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