Expect limited stock reaction as CEO retirement is orderly and interim CEO is experienced. Monitor CEO search updates and near-term pipeline milestones for real catalysts.
Price Chart
Executive Summary
AC Immune announced the retirement of long-serving CEO Andrea Pfeifer at the June 11 AGM, with Board Chair Martin Zügel taking over as interim CEO. The transition appears orderly with a search underway. No financial details were provided, and the impact on the stock is likely neutral given the orderly succession and strong pipeline positioning.
Key Facts
- CEO Andrea Pfeifer to retire at AGM on June 11, 2026 after 23-year tenure
- Board Chair Martin Zügel appointed interim CEO while permanent search conducted
- Pfeifer to remain as advisor and honorary chair; CEO search led by external consultant
Financial Impact
No financial impact; routine leadership transition
Risk Factors
- Extended CEO search could create uncertainty
- Potential loss of Pfeifer's strategic vision despite advisory role
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 5 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 6-K Filing (Primary) | 0000950103-26-007082 |
| Document: dp246561_6k.htm | 0000950103-26-007082 |
| Document: 0000950103-26-007082-index-headers.html | 0000950103-26-007082 |
| Document: 0000950103-26-007082-index.html | 0000950103-26-007082 |
| Document: 0000950103-26-007082.txt | 0000950103-26-007082 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 9, 2026 17d ago | 3/A | $2.45 $2.40 | ▼ −2.04% | ▼ −2.03% | $2.07 (−15.51%) |
Oct 9, 2026 18d ago | 3 | $2.50 $2.45 | ▼ −2.00% | ▼ −1.94% | $2.07 (−17.20%) |
Oct 2, 2026 25d ago | 6-K | $2.73 $2.71 | ▼ −0.55% | ▼ −1.22% | $2.07 (−24.04%) |
Sep 23, 2026 4w ago | 6-K | $2.83 $2.66 | ▼ −6.01% | ▼ −5.92% | $2.07 (−26.86%) |
Sep 3, 2026 7w ago | 6-K | $2.93 $2.86 | ▼ −2.39% | ▼ −2.00% | $2.07 (−29.35%) |
Aug 20, 2026 9w ago | 6-K | $2.64 $2.90 | ▲ +9.85% | ▲ +9.44% | $2.07 (−21.59%) |
Aug 20, 2026 9w ago | Press Release | $2.64 $2.90 | ▲ +9.85% | ▲ +9.44% | $2.07 (−21.59%) |
Aug 11, 2026 11w ago | 6-K | $2.54 $2.62 | ▲ +3.15% | ▲ +2.90% | $2.07 (−18.50%) |
Aug 11, 2026 11w ago | Press Release | $2.54 $2.62 | ▲ +3.15% | ▲ +2.90% | $2.07 (−18.50%) |
Aug 5, 2026 11w ago | 6-K | $2.29 $2.32 | ▲ +1.31% | ▲ +1.47% | $2.07 (−9.61%) |
US Market Status
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