Casdin Partners Master Fund, L.P.
CIK 1534265
Transactions on file
44
Open-market buys
30
Win rate (buys)
13%
30 scored
Avg % since filing (buys)
-21.3%
Tickers traded
Recent activity
| Filed | Txn date | Issuer | Roles | Code | Shares | Value | % since Filing | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-08 | 2026-06-05 | WGS GeneDx Holdings Corp. | Director10% | Buy | 50,000 | $2.64M | +6.6% | open → |
| 2026-06-08 | 2026-06-04 | WGS GeneDx Holdings Corp. | Director10% | Buy | 150,000 | $8.47M | -0.2% | open → |
| 2026-05-21 | 2026-05-21 | BLFS BIOLIFE SOLUTIONS INC | 10% | Sale | 650,000 | $15.40M | +16.2% | open → |
| 2026-05-21 | 2026-05-20 | BLFS BIOLIFE SOLUTIONS INC | 10% | Sale | 250,000 | $5.92M | +16.2% | open → |
| 2026-05-21 | 2026-05-19 | BLFS BIOLIFE SOLUTIONS INC | 10% | Sale | 300,000 | $6.79M | +21.6% | open → |
| 2026-05-20 | 2026-05-20 | WGS GeneDx Holdings Corp. | Director10% | Buy | 140,000 | $6.13M | +28.6% | open → |
| 2026-05-20 | 2026-05-19 | WGS GeneDx Holdings Corp. | Director10% | Buy | 185,000 | $7.88M | +32.2% | open → |
| 2026-05-20 | 2026-05-18 | WGS GeneDx Holdings Corp. | Director10% | Buy | 175,000 | $7.45M | +32.4% | open → |
| 2025-03-04 | 2025-02-28 | LAB STANDARD BIOTOOLS INC. | Director10% | Grant | 58,215 | $62.3K | -17.2% | open → |
| 2025-03-04 | 2025-02-28 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 4,820,959 | $5.16M | -17.2% | open → |
| 2025-03-04 | 2025-02-28 | LAB STANDARD BIOTOOLS INC. | Director10% | Other | 545,000 | $583.1K | -17.2% | open → |
| 2025-03-04 | 2025-02-28 | LAB STANDARD BIOTOOLS INC. | Director10% | Other | 545,000 | $583.1K | -17.2% | open → |
| 2025-04-09 | 2025-04-07 | BLFS BIOLIFE SOLUTIONS INC | 10% | Other | 27,994 | — | — | open → |
| 2025-05-15 | 2025-05-13 | TSVT 2seventy bio, Inc. | Director | U | 2,000,000 | $10.00M | — | open → |
| 2025-05-15 | 2025-05-13 | TSVT 2seventy bio, Inc. | Director | U | 22,625 | $113.1K | — | open → |
| 2025-06-12 | 2025-06-10 | BLFS BIOLIFE SOLUTIONS INC | 10% | Sale | 1,000,000 | $23.80M | +15.8% | open → |
| 2025-12-04 | 2025-12-04 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 150,000 | $217.0K | -38.7% | open → |
| 2025-12-04 | 2025-12-03 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 75,000 | $108.0K | -38.5% | open → |
| 2025-12-04 | 2025-12-02 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 125,000 | $177.5K | -37.6% | open → |
| 2025-11-26 | 2025-11-25 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 7,550,000 | $9.84M | -32.0% | open → |
| 2025-11-26 | 2025-11-24 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 150,000 | $214.9K | -38.1% | open → |
| 2025-11-20 | 2025-11-20 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 450,000 | $586.3K | -32.0% | open → |
| 2025-11-20 | 2025-11-19 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 350,000 | $448.9K | -30.9% | open → |
| 2025-11-20 | 2025-11-18 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 275,000 | $339.4K | -28.2% | open → |
| 2025-11-17 | 2025-11-17 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 225,000 | $275.6K | -27.6% | open → |
| 2025-11-17 | 2025-11-14 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 250,000 | $309.8K | -28.5% | open → |
| 2025-11-17 | 2025-11-13 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 450,000 | $541.4K | -26.3% | open → |
| 2025-11-12 | 2025-11-12 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 375,000 | $445.8K | -25.5% | open → |
| 2025-11-12 | 2025-11-11 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 300,000 | $358.8K | -25.9% | open → |
| 2025-11-12 | 2025-11-10 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 275,000 | $321.9K | -24.3% | open → |
| 2025-11-12 | 2025-11-07 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 225,000 | $252.8K | -21.1% | open → |
| 2025-10-17 | 2025-10-15 | BLFS BIOLIFE SOLUTIONS INC | 10% | Sale | 750,000 | $21.41M | -3.5% | open → |
| 2025-08-13 | 2025-08-11 | BLFS BIOLIFE SOLUTIONS INC | 10% | Sale | 500,000 | $11.30M | +21.9% | open → |
| 2025-08-15 | 2025-08-15 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 150,000 | $183.0K | -27.4% | open → |
| 2025-08-15 | 2025-08-14 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 133,220 | $161.2K | -26.8% | open → |
| 2025-08-15 | 2025-08-13 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 75,000 | $98.3K | -32.4% | open → |
| 2025-08-21 | 2025-08-15 | BLFS BIOLIFE SOLUTIONS INC | 10% | Sale | 500,000 | $12.20M | +12.9% | open → |
| 2025-08-22 | 2025-08-22 | WGS GeneDx Holdings Corp. | Director10% | Sale | 500,000 | $60.45M | -53.4% | open → |
| 2025-08-26 | 2025-08-26 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 125,000 | $157.5K | -29.7% | open → |
| 2025-08-26 | 2025-08-22 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 200,000 | $252.0K | -29.7% | open → |
| 2025-08-26 | 2025-08-25 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 200,000 | $248.0K | -28.5% | open → |
| 2025-09-05 | 2025-09-03 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 250,000 | $317.5K | -30.2% | open → |
| 2025-09-05 | 2025-09-04 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 250,000 | $320.0K | -30.8% | open → |
| 2025-09-11 | 2025-09-09 | LAB STANDARD BIOTOOLS INC. | Director10% | Buy | 100,000 | $129.0K | -31.3% | open → |
