Casdin Capital, LLC
CIK 1534261 · last filed 2026-06-08
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
BLFS price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
SUITE 2600
NEW YORK, NY 10019
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| GeneDx Holdings Corp. (WGSWW) Delisted | Director | 39,764 | $0.00 | $8 | $56.27M | 5 | 2026-06-08 |
| LAB | Director | 16,840,699 | $0.60 | $10.10M | $112.43M | 4 | 2025-11-26 |
| BLFS | 10%+ Owner | 15,264,330 | $38.61 | $589.36M | $177.05M | 9 | 2025-08-21 |
| TNYA | Director | 6,078,860 | $0.41 | $2.48M | $63.96M | 2 | 2022-11-25 |
| MXCT | 10%+ Owner | 10,735,786 | $1.51 | $16.21M | -$55.65M | 1 | 2022-07-06 |
Recent Filings · Page 2 of 3
22 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-05-15 | GeneDx Holdings Corp. (WGSWW) Delisted | Buy (P) | +250,000 | $5.83M | EDGAR |
| 2024-03-06 | GeneDx Holdings Corp. (WGSWW) Delisted | Buy (P) | +204,500 | $1.79M | EDGAR |
| 2023-10-23 | BLFS | Buy (P) | +3,708,660 | $41.50M | EDGAR |
| 2023-08-11 | BLFS | Buy (P) | +233,860 | $3.09M | EDGAR |
| 2023-05-19 | LAB | Buy (P) | +7,200,000 | $15.79M | EDGAR |
| 2023-05-19 | BLFS | Other (J) | +525,712 | $0 | EDGAR |
| 2022-11-25 | TNYA | Buy (P) | +4,984,084 | $12.96M | EDGAR |
| 2022-07-06 | MXCT | Sell (S) | −12,942,192 | -$55.65M | EDGAR |
| 2021-08-04 | TNYA | Mixed | +14,347,272 | $51.00M | EDGAR |
| 2020-11-27 | BLFS | Buy (P) | +6,400,000 | $144.00M | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.