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 | $0.62 | $10.40M | $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 | $2.51M | $63.96M | 2 | 2022-11-25 |
| MXCT | 10%+ Owner | 10,735,786 | $1.59 | $17.12M | -$55.65M | 1 | 2022-07-06 |
Recent Filings · Page 3 of 3
22 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2020-05-18 | BLFS | Buy (P) | +7,619,048 | $80.00M | EDGAR |
| 2019-11-21 | BLFS | Buy (P) | +160,000 | $2.47M | 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.