| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
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Chief Operating Officer | Chief Development Officer
1 company
Keutzer Timothy is a Chief Operating Officer at Spero Therapeutics, Inc.. Recent SEC Form 4 filings include 0 buys and 12 sells.
Estimated insider holdings value: $1.9M based on current market prices.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Feb 6, 2026 | SPRO Spero Therapeutics, Inc. | Chief Operating Officer | Sell | 18,652 | $2.36 | $44,018.72 | -2.5% | +3.7% | - | |
| Feb 4, 2026 | SPRO Spero Therapeutics, Inc. | Chief Operating Officer | Sell | 46,586 | $2.17 | $101,174.60 | -2.0% | +5.7% | - | |
| Aug 28, 2025 | SPRO Spero Therapeutics, Inc. | Chief Operating Officer | Sell | 1,695 | $1.97 | $3,339.15 | -0.2% | +16.5% | - | |
| Feb 5, 2025 | SPRO Spero Therapeutics, Inc. | Chief Operating Officer | Sell | 56,537 | $0.78 | $44,098.86 | -2.4% | -32.7% | +162.3% | |
| Aug 27, 2024 | SPRO Spero Therapeutics, Inc. | Chief Operating Officer | Sell | 2,213 | $1.35 | $2,987.55 | -0.4% | -16.7% | +43.5% | |
| Feb 2, 2024 | SPRO Spero Therapeutics, Inc. | Chief Operating Officer | Sell | 30,971 | $1.36 | $42,120.56 | -5.5% | +10.7% | -41.1% | |
| Aug 28, 2023 | SPRO Spero Therapeutics, Inc. | Chief Development Officer | Sell | 1,854 | $1.26 | $2,336.04 | -0.6% | -7.1% | +9.5% | |
| Feb 2, 2023 | SPRO Spero Therapeutics, Inc. | Chief Operating Officer | Sell | 3,394 | $1.86 | $6,312.84 | -1.0% | -1.1% | -20.5% |