Schenkein David P — SEC Form 4 filings
SEC reporting owner CIK 1578200. 14 Form 4 filings on record with FilingPulse; latest filed 2026-06-08.
Transaction summary — filings shown
Covers all 14 filings on record, filed 2024-02-27 to 2026-06-08. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 6 legs across 3 filings — 196,912 shares, $6,591,208 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 31.
- Largest priced transaction: sale of 57,471 shares @ $34.89 ($2,005,163) in AGIOS PHARMACEUTICALS, INC., filed 2024-02-29.
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 |
|---|---|---|---|---|---|
| AGIOS PHARMACEUTICALS, INC. (AGIO) | Director | 4 | — | 4 legs · 137,471 sh · $4,658,543 | 12 |
| Denali Therapeutics Inc. (DNLI) | Director | 4 | — | 2 legs · 59,441 sh · $1,932,665 | 8 |
| Prime Medicine, Inc. (PRME) | Director | 4 | — | — | 7 |
| REGENERON PHARMACEUTICALS, INC. (REGN) | Director | 2 | — | — | 4 |
Form 4 filings — Schenkein David P
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-08 | 4 | Prime Medicine, Inc. (PRME) | Grant/award (A): 75,000 (derivative) @ $0 | EDGAR |
| 2026-06-05 | 4 | Denali Therapeutics Inc. (DNLI) | Grant/award (A): 6,408 @ $0 · Grant/award (A): 19,226 (derivative) @ $0 | EDGAR |
| 2026-01-06 | 4 | REGENERON PHARMACEUTICALS, INC. (REGN) | Grant/award (A): 155 @ $0 · Grant/award (A): 1,962 (derivative) @ $0 | EDGAR |
| 2025-08-05 | 4 | Prime Medicine, Inc. (PRME) | Disposition to issuer (D): 39,062 (derivative) · Grant/award (A): 39,062 (derivative) · Disposition to issuer (D): 45,000 (derivative) · Grant/award (A): 45,000 (derivative) | EDGAR |
| 2025-06-05 | 4 | Prime Medicine, Inc. (PRME) | Grant/award (A): 55,000 (derivative) @ $0 | EDGAR |
| 2025-06-05 | 4 | Denali Therapeutics Inc. (DNLI) | Grant/award (A): 6,037 @ $0 · Grant/award (A): 18,111 (derivative) @ $0 | EDGAR |
| 2025-01-06 | 4 | REGENERON PHARMACEUTICALS, INC. (REGN) | Grant/award (A): 166 @ $0 · Grant/award (A): 1,958 (derivative) @ $0 | EDGAR |
| 2024-11-13 | 4 | Denali Therapeutics Inc. (DNLI) | Option exercise (M): 47,165 @ $18 · Sale (S): 27,129 @ $32.09 · Sale (S): 32,312 @ $32.87 · Option exercise (M): 47,165 (derivative) @ $0 | EDGAR |
| 2024-06-24 | 4 | AGIOS PHARMACEUTICALS, INC. (AGIO) | Grant/award (A): 2,120 (derivative) @ $0 · Grant/award (A): 11,774 (derivative) @ $0 | EDGAR |
| 2024-06-17 | 4 | AGIOS PHARMACEUTICALS, INC. (AGIO) | Option exercise (M): 3,388 @ $0 · Option exercise (M): 3,388 (derivative) @ $0 | EDGAR |
| 2024-06-14 | 4 | Prime Medicine, Inc. (PRME) | Grant/award (A): 45,000 (derivative) @ $0 | EDGAR |
| 2024-06-04 | 4 | Denali Therapeutics Inc. (DNLI) | Grant/award (A): 5,967 @ $0 · Grant/award (A): 17,901 (derivative) @ $0 | EDGAR |
| 2024-02-29 | 4 | AGIOS PHARMACEUTICALS, INC. (AGIO) | Option exercise (M): 11,858 @ $31.64 · Sale (S): 11,858 @ $33.60 · Option exercise (M): 57,471 @ $31.64 · Sale (S): 57,471 @ $34.89 · Option exercise (M): 11,858 (derivative) @ $0 · Option exercise (M): 57,471 (derivative) @ $0 | EDGAR |
| 2024-02-27 | 4 | AGIOS PHARMACEUTICALS, INC. (AGIO) | Option exercise (M): 47,731 @ $31.64 · Sale (S): 47,731 @ $33.05 · Option exercise (M): 20,411 @ $31.64 · Sale (S): 20,411 @ $33.19 · Option exercise (M): 47,731 (derivative) @ $0 · Option exercise (M): 20,411 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 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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