Corporate insider · disclosed-activity record
Casdin Partners Master Fund, L.P.
10% Shareholder (via BMO Capital Markets)
Every row below is a public disclosure this person or firm filed, dated and linked to its source. This is a factual record of what was disclosed and when — what it means, and whether any timing is coincidence or signal, is a judgment this page deliberately does not make.
Bullish filings
7
Bearish filings
10
Names touched
3
Disclosed $ (bull / bear)
$1.9M / $162.1M
Most active in: BLFS (9) · LAB (7) · WGS (1)
Disclosures, last 12 months
17 of 17 · linked to source| Date | Name | What | Disclosed $ | Receipt |
|---|---|---|---|---|
| 2026-05-21 | BLFS | filed notice to sell | $15.6M | SEC ↗ |
| 2026-05-21 | BLFS | sold | $15.4M | SEC ↗ |
| 2026-05-20 | BLFS | filed notice to sell | $6.0M | SEC ↗ |
| 2026-05-20 | BLFS | sold | $5.9M | SEC ↗ |
| 2026-05-19 | BLFS | filed notice to sell | $6.7M | SEC ↗ |
| 2026-05-19 | BLFS | sold | $6.8M | SEC ↗ |
| 2025-11-17 | LAB | bought | $275K | SEC ↗ |
| 2025-11-14 | LAB | bought | $310K | SEC ↗ |
| 2025-11-13 | LAB | bought | $540K | SEC ↗ |
| 2025-10-15 | BLFS | filed notice to sell | $21.4M | SEC ↗ |
| 2025-09-09 | LAB | bought | $129K | SEC ↗ |
| 2025-08-26 | LAB | bought | $158K | SEC ↗ |
| 2025-08-25 | LAB | bought | $248K | SEC ↗ |
| 2025-08-22 | WGS | filed notice to sell | $60.5M | SEC ↗ |
| 2025-08-22 | LAB | bought | $252K | SEC ↗ |
| 2025-08-15 | BLFS | filed notice to sell | $12.7M | SEC ↗ |
| 2025-08-11 | BLFS | filed notice to sell | $11.2M | SEC ↗ |
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Public filings only, shown as filed; the linked filing is the authoritative record. Descriptive, not investment advice — and never an allegation: proximity of a disclosure to any event is a fact of dates, not a conclusion about intent. Methodology · Today's notable signals