Monitor for announcement of a new COO or restructuring of executive responsibilities. The consulting period ends February 2027, so a permanent replacement may be named before or shortly after that date.
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Executive Summary
Spero Therapeutics disclosed that COO Timothy Keutzer will retire effective December 31, 2026, after 11 years of service. He is expected to enter a consulting arrangement through February 2027 to support the transition. The departure is a planned retirement with a transition plan, not an unexpected resignation.
Key Facts
- COO Timothy Keutzer will retire effective December 31, 2026
- Keutzer served 11 years at the company
- Company expects to enter a consulting agreement with Keutzer from ~January 1, 2027 through ~February 28, 2027
- Consulting agreement can be terminated by either party on 15 days notice
- Keutzer will be paid an hourly rate during the consulting period
- No replacement for COO has been named in the filing
Financial Impact
No material financial impact disclosed; consulting hourly rate not specified
Risk Factors
- No successor COO has been named, creating a temporary gap in operations leadership
- The CEO is also serving as CFO, concentrating key roles
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 8-K Filing (Primary) | 0001193125-26-434452 |
| Document: 0001193125-26-434452-index-headers.html | 0001193125-26-434452 |
| Document: 0001193125-26-434452-index.html | 0001193125-26-434452 |
| Document: 0001193125-26-434452.txt | 0001193125-26-434452 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 27, 2026 4d ago | 8-K | $1.17 | awaiting T+5 | awaiting T+5 | $1.06 (−9.40%) |
Sep 11, 2026 7w ago | EFFECT | $1.13 $1.13 | · 0.00% | ▼ −0.34% | $1.06 (+6.19%) |
Aug 28, 2026 9w ago | 8-K | $1.22 $1.19 | ▲ +2.46% | ▲ +2.32% | $1.06 (+13.11%) |
Aug 28, 2026 9w ago | S-3 | $1.22 $1.19 | ▲ +2.46% | ▲ +2.32% | $1.06 (+13.11%) |
Aug 12, 2026 11w ago | Press Release | $1.24 $1.22 | ▼ −1.61% | ▲ +0.35% | $1.06 (−14.52%) |
Jul 14, 2026 15w ago | 8-K | $1.70 $1.44 | ▼ −15.29% | ▼ −14.00% | $1.06 (−37.65%) |
Jul 14, 2026 15w ago | Press Release | $1.70 $1.44 | ▼ −15.29% | ▼ −14.00% | $1.06 (−37.65%) |
Jun 25, 2026 18w ago | 8-K | $2.26 $2.20 | ▼ −2.65% | ▼ −4.82% | $1.06 (−53.10%) |
Jun 22, 2026 18w ago | 8-K | $2.15 $2.26 | ▲ +5.12% | ▲ +4.10% | $1.06 (−50.70%) |
Jun 17, 2026 19w ago | Press Release | $2.11 $2.10 | ▼ −0.47% | ▲ +0.57% | $1.06 (−49.76%) |
US Market Status
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