Keutzer Timothy
SEC insider (Form 3/4/5 filer). CIK 0001798155. Chief Operating Officer at Spero Therapeutics, Inc. (SPRO). 10 reported Form 4/5 transactions since Sep 2024; latest on Feb 6, 2026. Located in CAMBRIDGE, MA.
Companies Keutzer Timothy has filed insider reports for
- Spero Therapeutics, Inc. (SPRO): Officer, Chief Operating Officer
Keutzer Timothy
CIK: 0001798155
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Spero Therapeutics, Inc.
Discretionary Trading P&L
Holdings
Transaction History (10 total)
- Feb 6, 2026SPRO
Spero Therapeutics, Inc.
SaleDirect18.7K shares at avg. $2.36$44K - Feb 4, 2026SPRO
Spero Therapeutics, Inc.
SaleDirect3.5K shares at avg. $2.24$8K - Feb 3, 2026SPRO
Spero Therapeutics, Inc.
SaleDirect24.2K shares at avg. $2.14$52K - Feb 2, 2026SPRO
Spero Therapeutics, Inc.
AwardDirect68K shares- - Feb 2, 2026SPRO
Spero Therapeutics, Inc.
SaleDirect18.9K shares at avg. $2.20$42K - Aug 28, 2025SPRO
Spero Therapeutics, Inc.
SaleDirect1.7K shares at avg. $1.97$3K - Feb 5, 2025SPRO
Spero Therapeutics, Inc.
SaleDirect24.9K shares at avg. $0.78$19K - Feb 5, 2025SPRO
Spero Therapeutics, Inc.
SaleDirect27.6K shares at avg. $0.78$22K - Feb 5, 2025SPRO
Spero Therapeutics, Inc.
SaleDirect4K shares at avg. $0.78$3K - Feb 3, 2025SPRO
Spero Therapeutics, Inc.
AwardDirect266.1K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Feb 6, 2026 | SPRO Spero Therapeutics, Inc. | Sale | 18,652 | $2.36 | $44,019 | Direct |
| Feb 4, 2026 | SPRO Spero Therapeutics, Inc. | Sale | 3,471 | $2.24 | $7,775 | Direct |
| Feb 3, 2026 | SPRO Spero Therapeutics, Inc. | Sale | 24,224 | $2.14 | $51,839 | Direct |
| Feb 2, 2026 | SPRO Spero Therapeutics, Inc. | Award | 68,000 | - | $0 | Direct |
| Feb 2, 2026 | SPRO Spero Therapeutics, Inc. | Sale | 18,891 | $2.20 | $41,560 | Direct |
| Aug 28, 2025 | SPRO Spero Therapeutics, Inc. | Sale | 1,695 | $1.97 | $3,339 | Direct |
| Feb 5, 2025 | SPRO Spero Therapeutics, Inc. | Sale | 24,920 | $0.78 | $19,438 | Direct |
| Feb 5, 2025 | SPRO Spero Therapeutics, Inc. | Sale | 27,643 | $0.78 | $21,562 | Direct |
| Feb 5, 2025 | SPRO Spero Therapeutics, Inc. | Sale | 3,974 | $0.78 | $3,100 | Direct |
| Feb 3, 2025 | SPRO Spero Therapeutics, Inc. | Award | 266,139 | - | - | Direct |
1-10 of 10 transactions