Comparable stake leader
Deep Track Capital, LP
SEC ownership of COMPASS Pathways plc
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001816590.
Disclosed value leader
RTW INVESTMENTS, LP
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- CMPS on Nasdaq
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Deep Track Capital, LP
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Deep Track Capital, LP
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001816590
- Issuer location
- Chesire, United Kingdom
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of COMPASS Pathways plc (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Deep Track Capital, LP
Disclosed value leader
RTW INVESTMENTS, LP
Comparable rows
50/50
Latest evidence
31 Mar 2026
13F
13D/G
3/4/5
Lead comparable stake: 10%
13D/G row: Deep Track Capital, LP
Showing 1-8 of 50 holder rows.
Quick read
Deep Track Capital, LP leads the comparable SEC ownership view at 10%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Deep Track Capital, LP's linked filing trail.
Comparable ownership
Top 5
Deep Track Capital, LP
10%
RTW INVESTMENTS, LP
9.9%
Atai Beckley N.V.
6%
AtaiBeckley Inc.
5%
TCG Crossover GP I, LLC
3.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Deep Track Capital, LP |
13F
13D/G
Company
|
10%
from 13D/G
|
$67,253,073
12,161,496 shares
|
— | 31 Mar 2026 |
| RTW INVESTMENTS, LP |
13D/G
13F
Company
|
9.9%
|
$71,732,788
12,971,571 shares
|
+$19,339,372 | 31 Mar 2026 |
| Atai Beckley N.V. |
3/4/5
13D/G
10%+ Owner · ATAI Life Sciences N.V.
|
6%
from 13D/G
|
$41,779,933
6,905,774 shares
|
— | 26 Sep 2024 |
| AtaiBeckley Inc. |
13D/G
|
5%
|
$37,260,032
4,764,710 shares
|
$0 | 21 Jan 2026 |
| TCG Crossover GP I, LLC |
13D/G
Chen Yu
|
3.9%
|
$14,197,440
3,858,000 shares
|
$0 | 30 Jun 2025 |
| Nantahala Capital Management, LLC |
13D/G
|
3.6%
|
$19,965,125
3,484,315 shares
|
-$14,038,500 | 30 Sep 2025 |
| Vivo Opportunity Fund Holdings, L.P. |
13D/G
|
3.2%
|
$18,189,851
3,174,494 shares
|
-$18,189,851 | 30 Sep 2025 |
| INTEGRATED CORE STRATEGIES (US) LLC |
13D/G
Millennium Management LLC
|
3%
|
$10,456,174
2,773,521 shares
|
-$2,412,525 | 31 Mar 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 15 Jun 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 21 reporting-owner rows connected to COMPASS Pathways plc. Open a relationship link for the CIK-to-CIK filing trail.
Rows
21
Largest Forms 3/4/5 holder
Atai Beckley N.V.
Net 12M change
$0
Latest report
27 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Atai Beckley N.V. | 10%+ Owner | $41,779,933 | Filing P/S | 26 Sep 2024 | ||
| George Jay Goldsmith | 10%+ Owner | $38,163,218 | Mixed | 24 Oct 2024 | ||
| Ekaterina Malievskaia | 10%+ Owner | $38,163,218 | Mixed | 24 Oct 2024 | ||
| Kabir Nath | Chief Executive Officer, Director | $2,532,231 | Mixed | 26 Mar 2026 | ||
| Teri Loxam | Chief Financial Officer | $1,048,813 | Mixed | 26 Mar 2026 | ||
| Matthew A. Owens | General Counsel & CLO | $471,973 | Mixed | 01 Feb 2024 | ||
| Michael Falvey | Chief Financial Officer | $187,893 | Mixed | 02 Feb 2023 | ||
| Annalisa Jenkins | Director | $134,022 | Mixed | 12 Jun 2025 | ||
| Mary-Rose Hughes | Interim CFO | $10,288 | Mixed | 01 Feb 2024 | ||
| Jason Camm | Director | Mixed | 01 Jan 2022 | |||
| Jeffrey M. Jonas | Director | Mixed | 27 May 2026 | |||
| Gino Santini | Director | Mixed | 27 May 2026 | |||
| Kathleen Tregoning | Director | Mixed | 27 May 2026 | |||
| David Y. Norton | Director | Mixed | 27 May 2026 | |||
| Justin D. Gover | Director | Mixed | 27 May 2026 | |||
| Daphne Karydas | Director | Mixed | 27 May 2026 | |||
| Robert McQuade | Director | Mixed | 27 May 2026 | |||
| Thomas Lonngren | Director | Mixed | 12 Jun 2025 | |||
| Wayne Joseph Riley | Director | Mixed | 27 May 2026 | |||
| Guy Goodwin | Chief Medical Officer | Mixed | 26 Mar 2026 |
Recent insider transactions for COMPASS Pathways plc
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Daphne Karydas | CMPS | Share Option (Right to Buy) | Award | 21,110 | 21,110 | 27 May 2026 | Direct | |||
| Gino Santini | CMPS | Share Option (Right to Buy) | Award | 30,158 | 30,158 | 27 May 2026 | Direct | |||
| Justin D. Gover | CMPS | Share Option (Right to Buy) | Award | 21,110 | 21,110 | 27 May 2026 | Direct | |||
| Jeffrey M. Jonas | CMPS | Share Option (Right to Buy) | Award | 21,110 | 21,110 | 27 May 2026 | Direct | |||
| Wayne Joseph Riley | CMPS | Share Option (Right to Buy) | Award | 21,110 | 21,110 | 27 May 2026 | Direct | |||
| Robert McQuade | CMPS | Share Option (Right to Buy) | Award | 21,110 | 21,110 | 27 May 2026 | Direct | |||
| David Y. Norton | CMPS | Share Option (Right to Buy) | Award | 21,110 | 21,110 | 27 May 2026 | Direct | |||
| Kathleen Tregoning | CMPS | Share Option (Right to Buy) | Award | 41,119 | 41,119 | 27 May 2026 | Direct | |||
| Kabir Nath | CMPS | Ordinary Shares | Award | 91.2% | 175,000 | 366,990 | 26 Mar 2026 | Direct | ||
| Kabir Nath | CMPS | Share Option (Right to Buy) | Award | 367,815 | 367,815 | 26 Mar 2026 | Direct | |||
| Guy Goodwin | CMPS | Share Option (Right to Buy) | Award | 170,600 | 115,600 | 26 Mar 2026 | Direct | |||
| Teri Loxam | CMPS | Ordinary Shares | Award | 97.4% | 75,000 | 152,002 | 26 Mar 2026 | Direct | ||
| Teri Loxam | CMPS | Share Option (Right to Buy) | Award | 157,635 | 157,635 | 26 Mar 2026 | Direct | |||
| Kabir Nath | CMPS | Ordinary Shares | Tax liability | -6.4% | -13,131 | 191,990 | 11 Mar 2026 | Direct | ||
| Teri Loxam | CMPS | Ordinary Shares | Tax liability | -2.26% | -1,781 | 77,002 | 11 Mar 2026 | Direct | ||
| Teri Loxam | CMPS | Ordinary Shares | Tax liability | -5.37% | -4,467 | 78,783 | 02 Mar 2026 | Direct | ||
| Kabir Nath | CMPS | Ordinary Shares | Tax liability | -7.31% | -16,181 | 205,121 | 02 Feb 2026 | Direct | ||
| Jeffrey M. Jonas | CMPS | Share Option (Right to Buy) | Award | 52,000 | 52,000 | 29 Oct 2025 | Direct | |||
| Kabir Nath | CMPS | Ordinary Shares | Tax liability | -2.8% | -6,366 | 221,302 | 01 Aug 2025 | Direct | ||
| Justin D. Gover | CMPS | Share Option (Right to Buy) | Award | 52,000 | 52,000 | 29 Jul 2025 | Direct |
* marks a reported price that did not pass the local price check.