Keutzer Timothy — SEC Form 4 filings
SEC reporting owner CIK 1798155. 6 Form 4 filings on record with FilingPulse; latest filed 2026-02-09.
Transaction summary — filings shown
Covers all 6 filings on record, filed 2024-02-05 to 2026-02-09. 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): 10 legs across 6 filings — 156,654 shares, $237,739 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 4.
- Largest priced transaction: sale of 24,224 shares @ $2.14 ($51,839) in Spero Therapeutics, Inc., filed 2026-02-05.
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 |
|---|---|---|---|---|---|
| Spero Therapeutics, Inc. (SPRO) | Chief Operating Officer | 6 | — | 10 legs · 156,654 sh · $237,739 | 4 |
Form 4 filings — Keutzer Timothy
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-02-09 | 4 | Spero Therapeutics, Inc. (SPRO) | Sale (S): 18,652 @ $2.36 | EDGAR |
| 2026-02-05 | 4 | Spero Therapeutics, Inc. (SPRO) | Grant/award (A): 68,000 @ $0 · Sale (S): 18,891 @ $2.20 · Sale (S): 24,224 @ $2.14 · Sale (S): 3,471 @ $2.24 · Grant/award (A): 137,000 (derivative) @ $0 | EDGAR |
| 2025-09-03 | 4 | Spero Therapeutics, Inc. (SPRO) | Sale (S): 1,695 @ $1.97 | EDGAR |
| 2025-02-05 | 4 | Spero Therapeutics, Inc. (SPRO) | Grant/award (A): 266,139 @ $0 · Sale (S): 3,974 @ $0.78 · Sale (S): 27,643 @ $0.78 · Sale (S): 24,920 @ $0.78 | EDGAR |
| 2024-08-29 | 4 | Spero Therapeutics, Inc. (SPRO) | Sale (S): 2,213 @ $1.35 | EDGAR |
| 2024-02-05 | 4 | Spero Therapeutics, Inc. (SPRO) | Grant/award (A): 239,731 @ $0 · Sale (S): 30,971 @ $1.36 | 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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