Prime Medicine, Inc.
PRMEHealthcare|Biotechnology|US
$4.65
+0.20 (+4.49%)
Tangible Book / Share
$0.22
Cash / Share
$0.54
Ownership Breakdown
32.8%
Float
181.4M
Shares Outstanding
59.4M
Float Shares
Major Holders (31)
Combined: 228.3%
Holders of 5%+ from their latest Schedule 13D/13G filing in the last two years. Percentages are as of each filing date.
| Holder | Type | % of Class | Shares | Filed | Filing |
|---|---|---|---|---|---|
| Alphabet Holdings LLC | Other | 12.30% | 16,562,498 | Nov 12, 2025 | 13D/G |
| XXVI Holdings Inc. | Corporation | 12.30% | 16,562,498 | Nov 12, 2025 | 13D/G |
| Alphabet Inc. | HC, CO | 12.30% | 16,562,498 | Nov 12, 2025 | 13D/G |
| ARCH Venture Partners X Overage, L.P. | Partnership | 10.40% | 18,486,894 | Aug 11, 2025 | 13D/G |
| Steven Gillis | Individual | 10.40% | 18,486,894 | Aug 11, 2025 | 13D/G |
| Kristina Burow | Individual | 10.40% | 18,486,894 | Aug 11, 2025 | 13D/G |
| Keith Crandell | Individual | 10.40% | 18,486,894 | Aug 11, 2025 | 13D/G |
| Robert Nelsen | Individual | 10.40% | 18,587,036 | Aug 11, 2025 | 13D/G |
| ARCH Venture Partners XII, LLC | Other | 10.40% | 18,486,894 | Aug 11, 2025 | 13D/G |
| ARCH Venture Partners X, LLC | Other | 10.40% | 18,486,894 | Aug 11, 2025 | 13D/G |
| ARCH Venture Partners XII, L.P. | Partnership | 10.40% | 18,486,894 | Aug 11, 2025 | 13D/G |
| ARCH Venture Partners X, L.P. | Partnership | 10.40% | 18,486,894 | Aug 11, 2025 | 13D/G |
| ARCH Venture Fund XII, L.P. | Partnership | 10.40% | 18,486,894 | Aug 11, 2025 | 13D/G |
| ARCH Venture Fund X Overage, L.P. | Partnership | 10.40% | 18,486,894 | Aug 11, 2025 | 13D/G |
| ARCH Venture Fund X, L.P. | Partnership | 10.40% | 18,486,894 | Aug 11, 2025 | 13D/G |
| GV 2019, L.P. | Partnership | 7.50% | 10,100,058 | Nov 12, 2025 | 13D/G |
| GV 2019 GP, L.L.C. | Other | 7.50% | 10,100,058 | Nov 12, 2025 | 13D/G |
| GV 2019 GP, L.P. | Partnership | 7.50% | 10,100,058 | Nov 12, 2025 | 13D/G |
| Newpath Partners, L.P. | Partnership | 4.70% | 6,105,679 | Feb 14, 2025 | 13D/G |
| Thomas Cahill | Individual | 4.70% | 6,105,679 | Feb 14, 2025 | 13D/G |
| Newpath Partners GP, LLC | Other | 4.70% | 6,105,679 | Feb 14, 2025 | 13D/G |
| Newpath Partners GP, L.P. | Partnership | 4.70% | 6,105,679 | Feb 14, 2025 | 13D/G |
| Abigail P. Johnson | Individual | 3.80% | 6,731,796 | Nov 5, 2025 | 13D/G |
| FMR LLC | Holding company | 3.80% | 6,731,796 | Nov 5, 2025 | 13D/G |
| T. Rowe Price Investment Management, Inc. | Investment adviser | 3.30% | 5,995,183 | Feb 17, 2026 | 13D/G |
| GV 2021, L.P. | Partnership | 2.40% | 3,262,440 | Nov 12, 2025 | 13D/G |
| GV 2021 GP, L.P. | Partnership | 2.40% | 3,262,440 | Nov 12, 2025 | 13D/G |
| GV 2021 GP, L.L.C. | Other | 2.40% | 3,262,440 | Nov 12, 2025 | 13D/G |
| GV 2023, L.P. | Partnership | 2.40% | 3,200,000 | Nov 12, 2025 | 13D/G |
| GV 2023 GP, L.P. | Partnership | 2.40% | 3,200,000 | Nov 12, 2025 | 13D/G |
| GV 2023 GP, L.L.C. | Other | 2.40% | 3,200,000 | Nov 12, 2025 | 13D/G |
Insider Trades (100)
Last 4 quarters: 19,603,066 acquired · 2,374,243 disposed
| Insider | Position | Date | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Schenkein David P | director | Jun 5, 2026 | AWARD | 75,000 | $3.06 | $229.5K | Form 4 |
| Marrazzo Jeffrey D | director | Jun 5, 2026 | AWARD | 75,000 | $3.06 | $229.5K | Form 4 |
| NELSEN ROBERT | director, 10 percent owner: | Jun 5, 2026 | AWARD | 75,000 | $3.06 | $229.5K | Form 4 |
| Kelly Michael Aaron | director | Jun 5, 2026 | AWARD | 75,000 | $3.06 | $229.5K | Form 4 |
| Foster-Cheek Kaye I | director | Jun 5, 2026 | AWARD | 75,000 | $3.06 | $229.5K | Form 4 |
| Chung Wendy | director | Jun 5, 2026 | AWARD | 75,000 | $3.06 | $229.5K | Form 4 |
| Cahill Thomas | director | Jun 5, 2026 | AWARD | 75,000 | $3.06 | $229.5K | Form 4 |
| Makhni Svetlana Ni | Chief Financial Officer | Apr 16, 2026 | AWARD | 800,000 | $3.67 | $2.9M | Form 4 |
| Makhni Svetlana Ni | officer | Apr 16, 2026 | OTHER | 0 | — | — | Form 4 |
| Reine Allan | director, officer: Chief Executive Officer | Feb 26, 2026 | AWARD | 1,300,000 | $4.38 | $5.7M | Form 4 |
| LEE ANN L. | Chief Technical Officer | Feb 23, 2026 | AWARD | 375,000 | $3.34 | $1.3M | Form 4 |
| Alenson Carman | See Remarks | Feb 23, 2026 | AWARD | 140,000 | $3.34 | $467.6K | Form 4 |
| LEE ANN L. | Chief Technical Officer | Aug 1, 2025 | AWARD | 180,995 | $4.04 | $731.2K | Form 4 |
| LEE ANN L. | Chief Technical Officer | Aug 1, 2025 | DISPOSED | 180,995 | $12.30 | $2.2M | Form 4 |
| LEE ANN L. | Chief Technical Officer | Aug 1, 2025 | DISPOSED | 180,995 | $8.49 | $1.5M | Form 4 |
| Schenkein David P | director | Aug 1, 2025 | AWARD | 45,000 | $4.04 | $181.8K | Form 4 |
| Schenkein David P | director | Aug 1, 2025 | AWARD | 39,062 | $4.04 | $157.8K | Form 4 |
| Schenkein David P | director | Aug 1, 2025 | DISPOSED | 45,000 | $7.68 | $345.6K | Form 4 |
| Schenkein David P | director | Aug 1, 2025 | DISPOSED | 39,062 | $14.83 | $579.3K | Form 4 |
| NELSEN ROBERT | director, 10 percent owner: | Aug 1, 2025 | AWARD | 45,000 | $4.04 | $181.8K | Form 4 |
| NELSEN ROBERT | director, 10 percent owner: | Aug 1, 2025 | AWARD | 39,062 | $4.04 | $157.8K | Form 4 |
| NELSEN ROBERT | director, 10 percent owner: | Aug 1, 2025 | DISPOSED | 39,062 | $14.83 | $579.3K | Form 4 |
| NELSEN ROBERT | director, 10 percent owner: | Aug 1, 2025 | DISPOSED | 45,000 | $7.68 | $345.6K | Form 4 |
| Marrazzo Jeffrey D | director | Aug 1, 2025 | AWARD | 250,000 | $4.04 | $1.0M | Form 4 |
| Marrazzo Jeffrey D | director | Aug 1, 2025 | AWARD | 92,000 | $4.04 | $371.7K | Form 4 |
| Marrazzo Jeffrey D | director | Aug 1, 2025 | AWARD | 45,000 | $4.04 | $181.8K | Form 4 |
| Marrazzo Jeffrey D | director | Aug 1, 2025 | DISPOSED | 250,000 | $8.63 | $2.2M | Form 4 |
| Marrazzo Jeffrey D | director | Aug 1, 2025 | DISPOSED | 45,000 | $7.68 | $345.6K | Form 4 |
| Marrazzo Jeffrey D | director | Aug 1, 2025 | DISPOSED | 92,000 | $14.04 | $1.3M | Form 4 |
| Kelly Michael Aaron | director | Aug 1, 2025 | AWARD | 45,000 | $4.04 | $181.8K | Form 4 |
| Kelly Michael Aaron | director | Aug 1, 2025 | AWARD | 39,062 | $4.04 | $157.8K | Form 4 |
| Kelly Michael Aaron | director | Aug 1, 2025 | AWARD | 13,510 | $4.04 | $54.6K | Form 4 |
| Kelly Michael Aaron | director | Aug 1, 2025 | AWARD | 9,006 | $4.04 | $36.4K | Form 4 |
| Kelly Michael Aaron | director | Aug 1, 2025 | DISPOSED | 45,000 | $7.68 | $345.6K | Form 4 |
| Kelly Michael Aaron | director | Aug 1, 2025 | DISPOSED | 13,510 | $10.54 | $142.4K | Form 4 |
| Kelly Michael Aaron | director | Aug 1, 2025 | DISPOSED | 9,006 | $17.00 | $153.1K | Form 4 |
| Kelly Michael Aaron | director | Aug 1, 2025 | DISPOSED | 39,062 | $14.83 | $579.3K | Form 4 |
| Foster-Cheek Kaye I | director | Aug 1, 2025 | AWARD | 45,000 | $4.04 | $181.8K | Form 4 |
| Foster-Cheek Kaye I | director | Aug 1, 2025 | AWARD | 39,062 | $4.04 | $157.8K | Form 4 |
| Foster-Cheek Kaye I | director | Aug 1, 2025 | AWARD | 13,510 | $4.04 | $54.6K | Form 4 |
| Foster-Cheek Kaye I | director | Aug 1, 2025 | AWARD | 9,006 | $4.04 | $36.4K | Form 4 |
| Foster-Cheek Kaye I | director | Aug 1, 2025 | DISPOSED | 13,510 | $10.92 | $147.5K | Form 4 |
| Foster-Cheek Kaye I | director | Aug 1, 2025 | DISPOSED | 9,006 | $17.00 | $153.1K | Form 4 |
| Foster-Cheek Kaye I | director | Aug 1, 2025 | DISPOSED | 39,062 | $14.83 | $579.3K | Form 4 |
| Foster-Cheek Kaye I | director | Aug 1, 2025 | DISPOSED | 45,000 | $7.68 | $345.6K | Form 4 |
| Chung Wendy | director | Aug 1, 2025 | AWARD | 45,000 | $4.04 | $181.8K | Form 4 |
| Chung Wendy | director | Aug 1, 2025 | AWARD | 39,062 | $4.04 | $157.8K | Form 4 |
| Chung Wendy | director | Aug 1, 2025 | AWARD | 13,510 | $4.04 | $54.6K | Form 4 |
| Chung Wendy | director | Aug 1, 2025 | AWARD | 9,006 | $4.04 | $36.4K | Form 4 |
| Chung Wendy | director | Aug 1, 2025 | DISPOSED | 13,510 | $10.54 | $142.4K | Form 4 |
| Chung Wendy | director | Aug 1, 2025 | DISPOSED | 45,000 | $7.68 | $345.6K | Form 4 |
| Chung Wendy | director | Aug 1, 2025 | DISPOSED | 39,062 | $14.83 | $579.3K | Form 4 |
| Chung Wendy | director | Aug 1, 2025 | DISPOSED | 9,006 | $17.00 | $153.1K | Form 4 |
| Cahill Thomas | director | Aug 1, 2025 | AWARD | 45,000 | $4.04 | $181.8K | Form 4 |
| Cahill Thomas | director | Aug 1, 2025 | AWARD | 39,062 | $4.04 | $157.8K | Form 4 |
| Cahill Thomas | director | Aug 1, 2025 | DISPOSED | 39,062 | $14.83 | $579.3K | Form 4 |
| Cahill Thomas | director | Aug 1, 2025 | DISPOSED | 45,000 | $7.68 | $345.6K | Form 4 |
| Reine Allan | director, officer: Chief Executive Officer | Aug 1, 2025 | AWARD | 850,000 | $4.04 | $3.4M | Form 4 |
| Reine Allan | director, officer: Chief Executive Officer | Aug 1, 2025 | DISPOSED | 850,000 | $6.80 | $5.8M | Form 4 |
| Alenson Carman | See Remarks | Aug 1, 2025 | AWARD | 90,498 | $4.04 | $365.6K | Form 4 |
| Alenson Carman | See Remarks | Aug 1, 2025 | AWARD | 16,083 | $4.04 | $65.0K | Form 4 |
| Alenson Carman | See Remarks | Aug 1, 2025 | AWARD | 6,254 | $4.04 | $25.3K | Form 4 |
| Alenson Carman | See Remarks | Aug 1, 2025 | DISPOSED | 16,083 | $10.92 | $175.6K | Form 4 |
| Alenson Carman | See Remarks | Aug 1, 2025 | DISPOSED | 90,498 | $8.49 | $768.3K | Form 4 |
| Alenson Carman | See Remarks | Aug 1, 2025 | DISPOSED | 90,498 | $12.30 | $1.1M | Form 4 |
| Alenson Carman | See Remarks | Aug 1, 2025 | DISPOSED | 6,254 | $13.63 | $85.2K | Form 4 |
| GV 2021 GP, L.L.C. | 10 percent owner | Aug 1, 2025 | BUY | 1,500,000 | $3.30 | $5.0M | Form 4 |
| NELSEN ROBERT | director, 10 percent owner: | Aug 1, 2025 | BUY | 3,030,300 | $3.30 | $10.0M | Form 4 |
| ARCH Venture Partners XII, LLC | 10 percent owner | Aug 1, 2025 | BUY | 3,030,300 | $3.30 | $10.0M | Form 4 |
| ARCH Venture Partners X, LLC | 10 percent owner | Aug 1, 2025 | BUY | 3,030,300 | $3.30 | $10.0M | Form 4 |
| Liu David R. | 10 percent owner | Jun 30, 2025 | BUY | 21,000 | $2.52 | $52.8K | Form 4 |
| Liu David R. | 10 percent owner | Jun 23, 2025 | BUY | 21,000 | $2.16 | $45.4K | Form 4 |
| Liu David R. | 10 percent owner | Jun 16, 2025 | BUY | 21,000 | $1.49 | $31.2K | Form 4 |
| Liu David R. | 10 percent owner | Jun 11, 2025 | BUY | 21,000 | $1.60 | $33.6K | Form 4 |
| Schenkein David P | director | Jun 4, 2025 | AWARD | 55,000 | $1.32 | $72.6K | Form 4 |
| Marrazzo Jeffrey D | director | Jun 4, 2025 | AWARD | 55,000 | $1.32 | $72.6K | Form 4 |
| NELSEN ROBERT | director, 10 percent owner: | Jun 4, 2025 | AWARD | 55,000 | $1.32 | $72.6K | Form 4 |
| Kelly Michael Aaron | director | Jun 4, 2025 | AWARD | 55,000 | $1.32 | $72.6K | Form 4 |
| Foster-Cheek Kaye I | director | Jun 4, 2025 | AWARD | 55,000 | $1.32 | $72.6K | Form 4 |
| Chung Wendy | director | Jun 4, 2025 | AWARD | 55,000 | $1.32 | $72.6K | Form 4 |
| Cahill Thomas | director | Jun 4, 2025 | AWARD | 55,000 | $1.32 | $72.6K | Form 4 |
| Brudnick Richard | Chief Business Officer | May 20, 2025 | BUY | 20,000 | $1.19 | $23.8K | Form 4 |
| LEE ANN L. | Chief Technical Officer | May 21, 2025 | BUY | 100,000 | $1.13 | $113.0K | Form 4 |
| Reine Allan | director, officer: Chief Executive Officer | May 21, 2025 | BUY | 125,000 | $1.18 | $147.2K | Form 4 |
| Marrazzo Jeffrey D | director | May 19, 2025 | AWARD | 800,000 | $1.33 | $1.1M | Form 4 |
| Reine Allan | director, officer: Chief Executive Officer | May 19, 2025 | AWARD | 2,000,000 | $1.33 | $2.7M | Form 4 |
| Reine Allan | Chief Financial Officer | May 8, 2025 | AWARD | 75,000 | $6.80 | $510.0K | Form 4 |
| Gottesdiener Keith Michael | director, officer: See Remarks | May 8, 2025 | AWARD | 100,000 | $8.32 | $832.0K | Form 4 |
| LEE ANN L. | Chief Technical Officer | May 8, 2025 | AWARD | 80,416 | $3.67 | $295.1K | Form 4 |
| Gottesdiener Keith Michael | director, officer: See Remarks | Feb 28, 2025 | AWARD | 500,000 | $2.52 | $1.3M | Form 4 |
| Alenson Carman | See Remarks | Feb 27, 2025 | AWARD | 90,500 | $2.42 | $219.0K | Form 4 |
| Goldwasser Meredith | SVP, Strategy & Corporate Ops. | Feb 27, 2025 | AWARD | 90,500 | $2.42 | $219.0K | Form 4 |
| Duffield Jeremy | Chief Scientific Officer | Feb 27, 2025 | AWARD | 275,000 | $2.42 | $665.5K | Form 4 |
| LEE ANN L. | Chief Technical Officer | Feb 27, 2025 | AWARD | 275,000 | $2.42 | $665.5K | Form 4 |
| Brudnick Richard | Chief Business Officer | Feb 27, 2025 | AWARD | 225,000 | $2.42 | $544.5K | Form 4 |
| Reine Allan | Chief Financial Officer | Feb 27, 2025 | AWARD | 275,000 | $2.42 | $665.5K | Form 4 |
| Gottesdiener Keith Michael | director, officer: See Remarks | Dec 5, 2024 | AWARD | 100,000 | $8.32 | $832.0K | Form 4 |
| Brudnick Richard | Chief Business Officer | Dec 5, 2024 | AWARD | 19,300 | $7.96 | $153.6K | Form 4 |
| Reine Allan | Chief Financial Officer | Dec 5, 2024 | AWARD | 75,000 | $6.80 | $510.0K | Form 4 |
| Gottesdiener Keith Michael | director, officer: See Remarks | Oct 8, 2024 | GIFT | 226,925 | — | — | Form 4 |