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Buy Day today: Neutral (60) Mixed market breadth · no major macro event
CMPS

Compass Pathways Plc

Healthcare · Medical Care Facilities

14.80$ -1.5% vs. previous close Closing price · As of: Sep 22, 2026

Ownership

Ownership Structure

Who owns Compass Pathways Plc (CMPS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 77.2% of the shares are freely tradable; institutional investors hold 71.1%.

Institutional ownership ?Share of the stock held by institutional investors (funds, banks, insurers) according to regulatory filings. 71.1%
Insiders ?Share of the stock held by the executives, founders and major shareholders of the company itself. 7.6%
Float ?Share of stock freely tradable on the market — not locked up in the hands of founders, insiders, or major shareholders. 77.2%
Short % of float ?Shares sold short as a percentage of the freely tradable float — high values signal many bets on falling prices. 10.6%
Shares Outstanding ?Total number of shares issued. Price times share count gives market cap. 139Mio.

Largest Shareholders

Institutions

Institutions CMPS
Name Stake (%) Shares Change (%) Date
Deep Track Capital, LP 8.78 12,161,496 +0.0 06/30/2026
RTW INVESTMENTS, LLC 7.68 10,632,390 +21.4 03/31/2026
Two Sigma Investments LLC 3.23 4,470,485 +73.0 06/30/2026
Marshall Wace Asset Management Ltd 2.92 4,038,335 +0.0 03/31/2026
TANG CAPITAL MANAGEMENT LLC 2.89 4,002,200 +0.0 03/31/2026
ARK Investment Management LLC 2.38 3,301,050 +53.1 03/31/2026
Baker Bros Advisors LP 1.69 2,344,720 +0.0 03/31/2026
Logos Global Management LP 1.62 2,250,000 +0.0 06/30/2026

Funds

Funds CMPS
Name Stake (%) Shares Change (%) Date
ARK Genomic Revolution ETF 3.42 4,729,363 -0.3 08/31/2026
ARK Genomic Revolution 2.35 3,251,932 +4.0 06/30/2026

Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.

Data as of: September 22, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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