Kolchinsky Peter
CIK 1384859
Transactions on file
162
Open-market buys
44
Win rate (buys)
66%
38 scored
Avg % since filing (buys)
+43.7%
Tickers traded
Recent activity
| Filed | Txn date | Issuer | Roles | Code | Shares | Value | % since Filing | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-13 | 2026-06-11 | JANX Janux Therapeutics, Inc. | Director10% | Grant | 5,500 | $0.00 | — | open → |
| 2026-06-12 | 2026-06-11 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 17,437 | $6.6K | +0.3% | open → |
| 2026-06-12 | 2026-06-11 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 245,066 | $93.1K | +0.3% | open → |
| 2026-06-12 | 2026-06-10 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 3,051 | $1.1K | +3.0% | open → |
| 2026-06-12 | 2026-06-10 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 42,872 | $15.9K | +3.0% | open → |
| 2026-06-12 | 2026-06-09 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 24,565 | $9.1K | +3.0% | open → |
| 2026-06-12 | 2026-06-09 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 345,235 | $127.7K | +3.0% | open → |
| 2026-06-11 | 2026-06-11 | ARTV Artiva Biotherapeutics, Inc. | Director10% | Buy | 548,580 | $4.34M | +8.0% | open → |
| 2026-06-11 | 2026-06-10 | ARTV Artiva Biotherapeutics, Inc. | Director10% | Buy | 103 | $721.00 | +22.0% | open → |
| 2026-06-11 | 2026-06-09 | ARTV Artiva Biotherapeutics, Inc. | Director10% | Buy | 479,039 | $3.31M | +23.6% | open → |
| 2026-06-05 | 2026-06-03 | ABOS Acumen Pharmaceuticals, Inc. | Director10% | Grant | 35,500 | $0.00 | — | open → |
| 2026-05-21 | 2026-05-20 | COAG Hemab Therapeutics Holdings, Inc. | 10% | Buy | 996 | $24.8K | +0.2% | open → |
| 2026-05-21 | 2026-05-19 | COAG Hemab Therapeutics Holdings, Inc. | 10% | Buy | 3,802 | $94.9K | +0.0% | open → |
| 2026-05-20 | 2026-05-18 | ACRV Acrivon Therapeutics, Inc. | Director10% | Grant | 9,366 | $0.00 | — | open → |
| 2026-05-14 | 2026-05-12 | COAG Hemab Therapeutics Holdings, Inc. | 10% | Buy | 6,387 | $159.0K | +0.3% | open → |
| 2026-05-13 | 2026-05-11 | ARTV Artiva Biotherapeutics, Inc. | Director10% | Buy | 6,510,416 | $75.00M | -25.9% | open → |
| 2026-05-12 | 2026-05-12 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 6,719 | $4.3K | -40.5% | open → |
| 2026-05-12 | 2026-05-12 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 94,432 | $60.4K | -40.5% | open → |
| 2026-05-12 | 2026-05-11 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 5,812 | $3.9K | -43.1% | open → |
| 2026-05-12 | 2026-05-11 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 81,678 | $54.7K | -43.1% | open → |
| 2026-05-12 | 2026-05-08 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 25,012 | $17.8K | -46.3% | open → |
| 2026-05-12 | 2026-05-08 | HOWL Werewolf Therapeutics, Inc. | 10% | Sale | 351,514 | $249.6K | -46.3% | open → |
| 2026-05-11 | 2026-05-11 | COAG Hemab Therapeutics Holdings, Inc. | 10% | Buy | 25,720 | $643.0K | -0.1% | open → |
| 2026-05-11 | 2026-05-11 | COAG Hemab Therapeutics Holdings, Inc. | 10% | Buy | 14,149 | $346.2K | +2.1% | open → |
| 2026-05-11 | 2026-05-08 | COAG Hemab Therapeutics Holdings, Inc. | 10% | Buy | 1,483 | $37.0K | +0.0% | open → |
| 2026-05-11 | 2026-05-07 | COAG Hemab Therapeutics Holdings, Inc. | 10% | Buy | 1,985 | $49.5K | +0.1% | open → |
| 2026-05-11 | 2026-05-07 | COAG Hemab Therapeutics Holdings, Inc. | 10% | Buy | 7,921 | $192.8K | +2.6% | open → |
| 2026-04-28 | 2026-04-27 | PRLD Prelude Therapeutics Inc | 10% | Other | 1,407,000 | $0.00 | — | open → |
| 2026-04-24 | 2026-04-22 | VOR Vor Biopharma Inc. | Director10% | Sale | 165,150 | $2.60M | -8.9% | open → |
| 2026-04-23 | 2026-04-22 | ACRV Acrivon Therapeutics, Inc. | Director10% | Grant | 3,888,888 | $7.00M | -17.8% | open → |
| 2026-04-21 | 2026-04-20 | VOR Vor Biopharma Inc. | Director10% | Sale | 171,963 | $2.71M | -8.9% | open → |
| 2026-04-21 | 2026-04-17 | VOR Vor Biopharma Inc. | Director10% | Sale | 458,411 | $7.46M | -11.8% | open → |
| 2026-04-15 | 2026-04-15 | VOR Vor Biopharma Inc. | Director10% | Sale | 53,644 | $858.8K | -10.3% | open → |
| 2026-04-15 | 2026-04-14 | VOR Vor Biopharma Inc. | Director10% | Sale | 153,735 | $2.46M | -10.1% | open → |
| 2026-04-15 | 2026-04-13 | VOR Vor Biopharma Inc. | Director10% | Sale | 530,610 | $8.57M | -11.1% | open → |
| 2026-04-13 | 2026-02-20 | ACET Adicet Bio, Inc. | 10% | Buy | 74,751 | $543.4K | — | open → |
| 2026-04-13 | 2026-02-19 | ACET Adicet Bio, Inc. | 10% | Buy | 74,268 | $535.5K | — | open → |
| 2026-04-13 | 2026-02-18 | ACET Adicet Bio, Inc. | 10% | Buy | 74,577 | $525.0K | — | open → |
| 2026-04-10 | 2026-04-10 | VOR Vor Biopharma Inc. | Director10% | Sale | 828 | $13.0K | -8.8% | open → |
| 2026-04-10 | 2026-04-09 | VOR Vor Biopharma Inc. | Director10% | Sale | 135,201 | $2.24M | -13.4% | open → |
| 2026-04-10 | 2026-04-08 | VOR Vor Biopharma Inc. | Director10% | Sale | 130,862 | $2.21M | -15.1% | open → |
| 2026-04-10 | 2026-04-08 | VOR Vor Biopharma Inc. | Director10% | Sale | 353,242 | $5.76M | -12.0% | open → |
| 2025-02-03 | 2025-01-30 | ETNB 89bio, Inc. | Director10% | Buy | 5,714,285 | $50.00M | — | open → |
| 2025-02-10 | 2025-02-10 | SION Sionna Therapeutics, Inc. | Director10% | Buy | 102,414 | $1.84M | +99.6% | open → |
| 2025-02-10 | 2025-02-10 | SION Sionna Therapeutics, Inc. | Director10% | Buy | 1,022,586 | $18.41M | +99.6% | open → |
| 2025-02-10 | 2025-02-10 | SION Sionna Therapeutics, Inc. | Director10% | C | 179,975 | — | — | open → |
| 2025-02-10 | 2025-02-10 | SION Sionna Therapeutics, Inc. | Director10% | C | 2,222,084 | — | — | open → |
| 2025-02-10 | 2025-02-10 | SION Sionna Therapeutics, Inc. | Director10% | C | 5,021,990 | — | — | open → |
| 2025-02-10 | 2025-02-10 | SION Sionna Therapeutics, Inc. | Director10% | C | 527,444 | — | — | open → |
| 2025-03-07 | 2025-03-05 | JANX Janux Therapeutics, Inc. | Director10% | Buy | 37,455 | $1.17M | -56.7% | open → |
| 2025-03-07 | 2025-03-05 | JANX Janux Therapeutics, Inc. | Director10% | Buy | 304,287 | $9.30M | -55.6% | open → |
| 2025-03-07 | 2025-03-07 | JANX Janux Therapeutics, Inc. | Director10% | Buy | 110,206 | $3.42M | -56.3% | open → |
| 2025-03-07 | 2025-03-06 | JANX Janux Therapeutics, Inc. | Director10% | Buy | 372,093 | $11.45M | -55.9% | open → |
| 2025-03-17 | 2025-03-13 | MLYS Mineralys Therapeutics, Inc. | Director | Buy | 1,296,296 | $17.50M | +75.0% | open → |
| 2025-04-30 | 2025-04-28 | JBIO Jade Biosciences, Inc. | 10% | Other | 1,062,326 | — | — | open → |
| 2025-05-14 | 2025-05-12 | HOWL Werewolf Therapeutics, Inc. | Director10% | Buy | 320,913 | $276.0K | -55.7% | open → |
| 2025-05-14 | 2025-05-14 | HOWL Werewolf Therapeutics, Inc. | Director10% | Buy | 162,539 | $159.3K | -61.1% | open → |
| 2025-05-14 | 2025-05-13 | HOWL Werewolf Therapeutics, Inc. | Director10% | Buy | 52,974 | $51.9K | -61.1% | open → |
| 2025-06-05 | 2025-06-04 | ABOS Acumen Pharmaceuticals, Inc. | Director10% | Grant | 12,800 | $0.00 | — | open → |
| 2025-06-06 | 2025-06-05 | TYRA Tyra Biosciences, Inc. | Director10% | Buy | 213,334 | $2.14M | +168.8% | open → |
| 2025-06-06 | 2025-06-04 | TYRA Tyra Biosciences, Inc. | Director10% | Buy | 997,864 | $9.61M | +180.3% | open → |
| 2025-06-11 | 2025-06-09 | TYRA Tyra Biosciences, Inc. | Director10% | Buy | 186,850 | $1.90M | +164.9% | open → |
| 2025-06-13 | 2025-06-11 | JANX Janux Therapeutics, Inc. | Director10% | Grant | 3,750 | $0.00 | — | open → |
| 2025-06-16 | 2025-06-13 | TYRA Tyra Biosciences, Inc. | Director10% | Buy | 120,167 | $1.23M | +164.6% | open → |
| 2025-06-16 | 2025-06-16 | TYRA Tyra Biosciences, Inc. | Director10% | Buy | 11,813 | $119.7K | +166.4% | open → |
| 2025-06-16 | 2025-06-12 | TYRA Tyra Biosciences, Inc. | Director10% | Buy | 31,307 | $319.3K | +164.6% | open → |
| 2025-06-30 | 2025-06-26 | CDTX Cidara Therapeutics, Inc. | Director10% | Buy | 2,272,727 | $100.00M | — | open → |
| 2026-05-06 | 2026-05-06 | COAG Hemab Therapeutics Holdings, Inc. | Director10% | Buy | 53,407 | $1.33M | +0.6% | open → |
| 2026-05-06 | 2026-05-06 | COAG Hemab Therapeutics Holdings, Inc. | Director10% | Buy | 14,611 | $347.3K | +5.1% | open → |
| 2026-05-06 | 2026-05-05 | COAG Hemab Therapeutics Holdings, Inc. | Director10% | Buy | 10,268 | $256.7K | -0.1% | open → |
| 2026-05-06 | 2026-05-05 | COAG Hemab Therapeutics Holdings, Inc. | Director10% | Buy | 87,143 | $2.14M | +1.6% | open → |
| 2026-05-06 | 2026-05-04 | COAG Hemab Therapeutics Holdings, Inc. | Director10% | Buy | 133,750 | $2.41M | +38.8% | open → |
| 2026-05-06 | 2026-05-04 | COAG Hemab Therapeutics Holdings, Inc. | Director10% | Buy | 2,541,250 | $45.74M | +38.8% | open → |
| 2026-05-06 | 2026-05-04 | COAG Hemab Therapeutics Holdings, Inc. | Director10% | C | 221,188 | $0.00 | — | open → |
| 2026-05-06 | 2026-05-04 | COAG Hemab Therapeutics Holdings, Inc. | Director10% | C | 1,009,052 | $0.00 | — | open → |
| 2026-05-06 | 2026-05-04 | COAG Hemab Therapeutics Holdings, Inc. | Director10% | C | 3,607,846 | $0.00 | — | open → |
| 2026-04-30 | 2026-04-27 | ACET Adicet Bio, Inc. | 10% | Other | 250,000 | $0.00 | — | open → |
| 2025-12-19 | 2025-12-18 | VOR Vor Biopharma Inc. | Director10% | Grant | 4,625,346 | $50.00M | +32.8% | open → |
| 2025-12-15 | 2025-12-12 | CLYM Climb Bio, Inc. | Director10% | Buy | 101,462 | $290.2K | +300.0% | open → |
| 2025-12-15 | 2025-12-11 | CLYM Climb Bio, Inc. | Director10% | Buy | 213,099 | $464.6K | +424.8% | open → |
| 2025-12-15 | 2025-12-11 | CLYM Climb Bio, Inc. | Director10% | Disp. | 20,440,000 | $0.00 | — | open → |
| 2025-12-10 | 2025-12-08 | FULC Fulcrum Therapeutics, Inc. | 10% | Sale | 91,722 | $1.37M | — | open → |
| 2025-12-10 | 2025-12-08 | FULC Fulcrum Therapeutics, Inc. | 10% | Sale | 2,706,397 | $38.65M | — | open → |
| 2025-12-10 | 2025-12-08 | FULC Fulcrum Therapeutics, Inc. | 10% | Sale | 1,377,020 | $18.36M | — | open → |
| 2025-11-24 | 2025-11-21 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 7,609 | $300.6K | -9.1% | open → |
| 2025-11-24 | 2025-11-21 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 6,440 | $254.4K | -9.1% | open → |
| 2025-11-24 | 2025-11-21 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 9,924 | $392.0K | -9.1% | open → |
| 2025-11-24 | 2025-11-21 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 1,210 | $47.8K | -9.1% | open → |
| 2025-11-24 | 2025-11-20 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 604 | $24.5K | -11.3% | open → |
| 2025-11-24 | 2025-11-20 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 512 | $20.7K | -11.3% | open → |
| 2025-11-24 | 2025-11-20 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 788 | $31.9K | -11.3% | open → |
| 2025-11-24 | 2025-11-20 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 96 | $3.9K | -11.3% | open → |
| 2025-11-24 | 2025-11-20 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 947 | $37.8K | -10.0% | open → |
| 2025-11-24 | 2025-11-20 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 801 | $32.0K | -10.0% | open → |
| 2025-11-24 | 2025-11-20 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 1,235 | $49.3K | -10.0% | open → |
| 2025-11-24 | 2025-11-20 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 150 | $6.0K | -10.0% | open → |
| 2025-11-19 | 2025-11-19 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 9 | $365.49 | -11.5% | open → |
| 2025-11-19 | 2025-11-19 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 8 | $324.88 | -11.5% | open → |
| 2025-11-19 | 2025-11-19 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 12 | $487.32 | -11.5% | open → |
| 2025-11-19 | 2025-11-19 | SION Sionna Therapeutics, Inc. | Director10% | Sale | 2 | $81.22 | -11.5% | open → |
