COMPASS Pathways plc (CMPS) Institutional Ownership

Ownership Summary

COMPASS Pathways plc (NASDAQ:CMPS) is held by 165 institutional investors per 13F filings through December 2025.

• Collectively, these holders controlled 58.1% of COMPASS Pathways's outstanding shares in December 2025, down from 58.4% in September 2025.
• They increased total shares held in CMPS by 13.17% quarter over quarter, and investors in COMPASS Pathways increased 28.91% from a year ago.
• Among the 165 funds, 74 bought more COMPASS Pathways shares, 38 sold down, and 53 held their ground.
• The aggregate institutional position in COMPASS Pathways amounted to 55.39Mn shares as of December 2025, up by 6.45Mn shares quarter on quarter, and up 23.1Mn shares year over year.
• As of December 31, 2025, Deep Track Capital, LP held the largest stake in COMPASS Pathways with 12.16Mn shares, accounting for 12.76% of total shares outstanding.
• Top purchasers of CMPS stock for the quarter ending December 2025 included Deep Track Capital, LP (4.83Mn), MARSHALL WACE, LLP (4.04Mn), TANG CAPITAL MANAGEMENT LLC (4.0Mn), BIT Capital GmbH (3.2Mn), BAKER BROS. ADVISORS LP (2.34Mn).
• The biggest sellers of COMPASS Pathways for the quarter ending December 2025 included Toronto Dominion Bank (2.25Mn), D. E. Shaw & Co., Inc. (1.22Mn), SCHRODER INVESTMENT MANAGEMENT GROUP (270.46K), UBS Group AG (183.37K), CenterBook Partners LP (169.59K).
• Business Quant data shows the 10 biggest positions in COMPASS Pathways as of December 2025 are held by Deep Track Capital, LP (12.16Mn), RTW INVESTMENTS, LP (10.63Mn), MARSHALL WACE, LLP (4.04Mn), TANG CAPITAL MANAGEMENT LLC (4.0Mn), BIT Capital GmbH (3.49Mn), ARK Investment Management LLC (3.3Mn), MILLENNIUM MANAGEMENT LLC (3.14Mn), GMT CAPITAL CORP (3.08Mn), TWO SIGMA INVESTMENTS, LP (2.58Mn), DAFNA Capital Management LLC (2.42Mn).