Prime Medicine, Inc. (PRME) ownership: Top institutional holder: Alphabet Inc. ($57.64M). Insider activity: Net Seller (0 buys, 4 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| Alphabet Inc. | 16562498.00 | $57.64M | 2026-03-31 |
| BlackRock, Inc. | 8501708.00 | $29.59M | 2026-03-31 |
| VANGUARD GROUP INC | 6467872.00 | $22.44M | 2025-12-31 |
| STATE STREET CORP | 6345125.00 | $22.08M | 2026-03-31 |
| ARK Investment Management LLC | 6246827.00 | $21.74M | 2026-03-31 |
| T. Rowe Price Investment Management, Inc. | 5481893.00 | $19.08M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4474162.00 | $15.57M | 2026-03-31 |
| Balyasny Asset Management L.P. | 4123365.00 | $14.35M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-04-16 | |
| Sell | null | 2026-02-26 | |
| Sell | null | 2026-02-23 | |
| Sell | null | 2026-02-23 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.