Sohn Catherine A. — SEC Form 4 filings
SEC reporting owner CIK 1555132. 8 Form 4 filings on record with FilingPulse; latest filed 2026-05-01.
Transaction summary — filings shown
Covers all 8 filings on record, filed 2024-09-30 to 2026-05-01. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 2 legs across 2 filings — 1,500 shares, $7,902 total (shares × price as filed).
- Open-market sales (code S, non-derivative): 2 legs across 1 filing — 29,413 shares, $1,149,054 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 13.
- Largest priced transaction: sale of 26,920 shares @ $39.11 ($1,052,785) in Maze Therapeutics, Inc., filed 2026-01-08.
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 |
|---|---|---|---|---|---|
| Maze Therapeutics, Inc. (MAZE) | Director | 2 | — | 2 legs · 29,413 sh · $1,149,054 | 9 |
| Altimmune, Inc. (ALT) | Director | 6 | 2 legs · 1,500 sh · $7,902 | — | 4 |
Form 4 filings — Sohn Catherine A.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-05-01 | 4 | Altimmune, Inc. (ALT) | Grant/award (A): 48,800 (derivative) @ $0 | EDGAR |
| 2026-01-08 | 4 | Maze Therapeutics, Inc. (MAZE) | Option exercise (M): 2,493 @ $10.42 · Sale (S): 2,493 @ $38.62 · Option exercise (M): 20,744 @ $10.42 · Option exercise (M): 2,895 @ $10.42 · Option exercise (M): 3,281 @ $10.42 · Sale (S): 26,920 @ $39.11 · +4 more | EDGAR |
| 2026-01-05 | 4 | Altimmune, Inc. (ALT) | Purchase (P): 500 @ $4.24 | EDGAR |
| 2025-09-29 | 4 | Altimmune, Inc. (ALT) | Grant/award (A): 48,800 (derivative) @ $0 | EDGAR |
| 2025-09-24 | 4 | Maze Therapeutics, Inc. (MAZE) | Grant/award (A): 18,000 (derivative) @ $0 | EDGAR |
| 2025-03-18 | 4 | Altimmune, Inc. (ALT) | Purchase (P): 1,000 @ $5.78 | EDGAR |
| 2025-02-07 | 4 | Altimmune, Inc. (ALT) | Grant/award (A): 18,600 (derivative) @ $0 | EDGAR |
| 2024-09-30 | 4 | Altimmune, Inc. (ALT) | Grant/award (A): 34,900 (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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