Praxis Precision Medicines Inc
Ownership
Ownership Structure
Who owns Praxis Precision Medicines Inc (PRAX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 86.2% of the shares are freely tradable; institutional investors hold 116.8%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| HHG PLC | 12.39 | 3,458,863 | +6.8 | 03/31/2026 |
| Orbis Allan Gray Ltd | 8.86 | 2,472,480 | +97.0 | 03/31/2026 |
| BlackRock Inc | 8.33 | 2,324,929 | +11.9 | 03/31/2026 |
| FMR Inc | 7.74 | 2,160,943 | +59.0 | 03/31/2026 |
| Perceptive Advisors LLC | 7.29 | 2,035,986 | +0.0 | 06/30/2026 |
| Baker Bros Advisors LP | 6.28 | 1,753,198 | +55.6 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.38 | 1,221,944 | +0.0 | 03/31/2026 |
| Adage Capital Partners Gp LLC | 3.64 | 1,015,480 | +24.5 | 06/30/2026 |
| Deerfield Management Co | 3.45 | 963,351 | +6.6 | 03/31/2026 |
| Driehaus Capital Management LLC | 3.40 | 949,225 | +1.7 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Souza Marcio | Chief Executive Officer | 56,495 | 17,541,698 $ | Jul 8, 2026 | both |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 8, 2026 | Souza Marcio | Chief Executive Officer | Other | 2,600 | 0.00 | – |
| Jul 8, 2026 | Souza Marcio | Chief Executive Officer | Other | 20,521 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 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.