Casdin Eli — SEC Form 4 filings
SEC reporting owner CIK 1534264. 59 Form 4 filings on record with FilingPulse; latest filed 2026-06-23.
Transaction summary — filings shown
Covers the 50 most recent of 59 filings on record, filed 2024-05-15 to 2026-06-23. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 59 legs across 26 filings — 27,966,221 shares, $80,039,487 total (shares × price as filed).
- Open-market sales (code S, non-derivative): 8 legs across 6 filings — 4,450,000 shares, $157,287,275 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 37.
- Largest priced transaction: sale of 500,000 shares @ $120.90 ($60,451,950) in GeneDx Holdings Corp., filed 2025-08-22.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| GeneDx Holdings Corp. (WGS) | Director, 10% owner | 14 | 12 legs · 1,090,000 sh · $40,759,306 | 1 leg · 500,000 sh · $60,451,950 | 16 |
| BIOLIFE SOLUTIONS INC (BLFS) | 10% owner | 7 | — | 7 legs · 3,950,000 sh · $96,835,325 | 1 |
| STANDARD BIOTOOLS INC. (LAB) | Director, 10% owner | 27 | 47 legs · 26,876,221 sh · $39,280,182 | — | 14 |
| 2seventy bio, Inc. (TSVT) | Director | 2 | — | — | 6 |
Form 4 filings — Casdin Eli
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-23 | 4 | STANDARD BIOTOOLS INC. (LAB) | Grant/award (A): 99,116 @ $0 · Grant/award (A): 175,923 (derivative) @ $0 | EDGAR |
| 2026-06-23 | 4 | GeneDx Holdings Corp. (WGS) | Option exercise (M): 3,576 @ $0 · Grant/award (A): 4,248 (derivative) @ $0 · Option exercise (M): 3,576 (derivative) @ $0 | EDGAR |
| 2026-06-08 | 4 | GeneDx Holdings Corp. (WGS) jointly with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC | Purchase (P): 150,000 @ $56.44 · Purchase (P): 50,000 @ $52.86 | EDGAR |
| 2026-05-21 | 4 | BIOLIFE SOLUTIONS INC (BLFS) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC | Sale (S): 300,000 @ $22.65 · Sale (S): 250,000 @ $23.70 · Sale (S): 650,000 @ $23.70 | EDGAR |
| 2026-05-20 | 4 | GeneDx Holdings Corp. (WGS) jointly with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC | Purchase (P): 175,000 @ $42.55 · Purchase (P): 185,000 @ $42.60 · Purchase (P): 140,000 @ $43.81 | EDGAR |
| 2026-05-11 | 4 | GeneDx Holdings Corp. (WGS) jointly with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC | Purchase (P): 500,000 (derivative) · Purchase (P): 300,000 (derivative) · Purchase (P): 50,000 (derivative) | EDGAR |
| 2026-03-02 | 4 | STANDARD BIOTOOLS INC. (LAB) | Grant/award (A): 52,991 @ $1.17 | EDGAR |
| 2025-12-04 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC, Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P. | Purchase (P): 125,000 @ $1.42 · Purchase (P): 75,000 @ $1.44 · Purchase (P): 150,000 @ $1.45 | EDGAR |
| 2025-11-26 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC, Casdin Capital, LLC, CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC, Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund, L.P. | Purchase (P): 150,000 @ $1.43 · Purchase (P): 7,550,000 @ $1.30 | EDGAR |
| 2025-11-20 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 275,000 @ $1.23 · Purchase (P): 350,000 @ $1.28 · Purchase (P): 450,000 @ $1.30 | EDGAR |
| 2025-11-17 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 450,000 @ $1.20 · Purchase (P): 250,000 @ $1.24 · Purchase (P): 225,000 @ $1.22 | EDGAR |
| 2025-11-12 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 225,000 @ $1.12 · Purchase (P): 275,000 @ $1.17 · Purchase (P): 300,000 @ $1.20 · Purchase (P): 375,000 @ $1.19 | EDGAR |
| 2025-10-17 | 4 | BIOLIFE SOLUTIONS INC (BLFS) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC | Sale (S): 750,000 @ $28.55 | EDGAR |
| 2025-09-11 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 100,000 @ $1.29 | EDGAR |
| 2025-09-05 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 250,000 @ $1.27 · Purchase (P): 250,000 @ $1.28 | EDGAR |
| 2025-08-26 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 200,000 @ $1.26 · Purchase (P): 200,000 @ $1.24 · Purchase (P): 125,000 @ $1.26 | EDGAR |
| 2025-08-22 | 4 | GeneDx Holdings Corp. (WGS) jointly with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC | Sale (S): 500,000 @ $120.90 | EDGAR |
| 2025-08-21 | 4 | BIOLIFE SOLUTIONS INC (BLFS) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC | Sale (S): 500,000 @ $24.40 | EDGAR |
| 2025-08-15 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 75,000 @ $1.31 · Purchase (P): 133,220 @ $1.21 · Purchase (P): 150,000 @ $1.22 | EDGAR |
| 2025-08-13 | 4 | BIOLIFE SOLUTIONS INC (BLFS) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC | Sale (S): 500,000 @ $22.60 | EDGAR |
| 2025-08-07 | 4/A | GeneDx Holdings Corp. (WGS) | Option exercise (M): 12,924 @ $0 · Grant/award (A): 3,576 (derivative) @ $0 · Option exercise (M): 12,924 (derivative) @ $0 | EDGAR |
| 2025-06-24 | 4 | STANDARD BIOTOOLS INC. (LAB) | Grant/award (A): 94,592 @ $0 · Grant/award (A): 125,660 (derivative) @ $0 | EDGAR |
| 2025-06-23 | 4 | GeneDx Holdings Corp. (WGS) | Option exercise (M): 12,924 @ $0 · Grant/award (A): 3,576 (derivative) @ $0 · Option exercise (M): 12,924 (derivative) @ $0 | EDGAR |
| 2025-06-12 | 4 | BIOLIFE SOLUTIONS INC (BLFS) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC | Sale (S): 1,000,000 @ $23.80 | EDGAR |
| 2025-05-15 | 4 | 2seventy bio, Inc. (TSVT) jointly with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC | Code (U): 22,625 @ $5 · Code (U): 2,000,000 @ $5 · Disposition to issuer (D): 12,050 (derivative) · Disposition to issuer (D): 33,400 (derivative) | EDGAR |
| 2025-04-29 | 4/A | BIOLIFE SOLUTIONS INC (BLFS) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC | Holdings only — no transactions reported | EDGAR |
| 2025-04-09 | 4 | BIOLIFE SOLUTIONS INC (BLFS) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC | Other (J): 27,994 | EDGAR |
| 2025-03-04 | 4/A | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., Casdin Amplify Fund, LP, CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Holdings only — no transactions reported | EDGAR |
| 2025-03-04 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., Casdin Amplify Fund, LP, CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 4,820,959 @ $1.06 · Other (J): 545,000 @ $1.06 · Other (J): 545,000 @ $1.06 · Grant/award (A): 58,215 @ $1.06 | EDGAR |
| 2024-08-29 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., Casdin Amplify Fund, LP, CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 250,000 @ $2.19 | EDGAR |
| 2024-08-26 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Amplify Fund, LP, Casdin Capital, LLC, Casdin Partners GP, LLC, CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC, Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund, L.P. | Purchase (P): 307,900 @ $1.96 · Purchase (P): 292,100 @ $2.13 · Purchase (P): 150,000 @ $2.15 | EDGAR |
| 2024-08-21 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., Casdin Amplify Fund, LP, CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 250,000 @ $1.85 · Purchase (P): 500,000 @ $1.87 · Purchase (P): 500,000 @ $1.90 | EDGAR |
| 2024-08-16 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Amplify Fund, LP, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 1,200,000 @ $1.59 | EDGAR |
| 2024-08-13 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., Casdin Amplify Fund, LP, CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Purchase (P): 525,408 @ $1.61 · Purchase (P): 500,000 @ $1.64 · Purchase (P): 550,000 @ $1.62 | EDGAR |
| 2024-08-09 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Amplify Fund, LP, Casdin Capital, LLC, Casdin Partners GP, LLC, CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC, Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund, L.P. | Purchase (P): 500,000 @ $1.57 · Purchase (P): 569,562 @ $1.64 | EDGAR |
| 2024-08-06 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Amplify Fund, LP, Casdin Capital, LLC, Casdin Partners GP, LLC, CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC, Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund, L.P. | Purchase (P): 1,000,000 @ $1.63 · Purchase (P): 200,000 @ $1.58 | EDGAR |
| 2024-08-05 | 4 | GeneDx Holdings Corp. (WGS) jointly with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC | Other (J): 413,655 @ $32.25 | EDGAR |
| 2024-07-23 | 4 | STANDARD BIOTOOLS INC. (LAB) | Grant/award (A): 1,588 @ $0 | EDGAR |
| 2024-07-02 | 4 | STANDARD BIOTOOLS INC. (LAB) | Grant/award (A): 43,128 @ $0 · Grant/award (A): 72,213 (derivative) @ $0 | EDGAR |
| 2024-06-27 | 4 | GeneDx Holdings Corp. (WGS) | Grant/award (A): 12,924 (derivative) @ $0 | EDGAR |
| 2024-06-24 | 4 | GeneDx Holdings Corp. (WGS) | Option exercise (M): 5,828 @ $0 · Option exercise (M): 5,828 (derivative) @ $0 | EDGAR |
| 2024-06-21 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Partners FO1-MSV, LP, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC | Other (J): 655,000 @ $2.05 · Other (J): 545,000 @ $2.05 · Other (J): 1,200,000 @ $2.05 | EDGAR |
| 2024-06-12 | 4 | 2seventy bio, Inc. (TSVT) jointly with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC | Grant/award (A): 6,025 · Grant/award (A): 12,050 (derivative) @ $3.93 | EDGAR |
| 2024-06-05 | 4 | GeneDx Holdings Corp. (WGS) jointly with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC, Casdin Partners FO1-MSV, LP | Purchase (P): 100,000 @ $20.82 · Purchase (P): 30,000 @ $22.52 | EDGAR |
| 2024-05-31 | 4 | GeneDx Holdings Corp. (WGS) jointly with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC, Casdin Partners FO1-MSV, LP | Purchase (P): 40,000 @ $21.07 | EDGAR |
| 2024-05-28 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC, Casdin Partners FO1-MSV, LP | Purchase (P): 100,000 @ $2.60 | EDGAR |
| 2024-05-28 | 4 | GeneDx Holdings Corp. (WGS) jointly with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC, Casdin Partners FO1-MSV, LP | Purchase (P): 7,500 @ $19.59 · Purchase (P): 144,196 @ $20.12 · Purchase (P): 18,304 @ $20.61 | EDGAR |
| 2024-05-22 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC, Casdin Partners FO1-MSV, LP | Purchase (P): 100,000 @ $2.58 · Purchase (P): 350,000 @ $2.56 · Purchase (P): 150,000 @ $2.58 | EDGAR |
| 2024-05-17 | 4 | STANDARD BIOTOOLS INC. (LAB) jointly with Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, Casdin Private Growth Equity Fund II, L.P., Casdin Private Growth Equity Fund II GP, LLC, Casdin Private Growth Equity Fund, L.P., CASDIN PRIVATE GROWTH EQUITY FUND GP, LLC, Casdin Partners FO1-MSV, LP | Purchase (P): 500,000 @ $2.57 · Purchase (P): 500,000 @ $2.54 · Purchase (P): 352,072 @ $2.56 | EDGAR |
| 2024-05-15 | 4 | GeneDx Holdings Corp. (WGS) jointly with Casdin Capital, LLC, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC, Casdin Partners FO1-MSV, LP | Purchase (P): 50,000 @ $23.31 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-09 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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