Monitor the next 8-K for the naming of a new Head of R&D appointment. The transition was pre-announced months ago and is not a surprise — no immediate trading catalyst.
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Executive Summary
Acadia Pharmaceuticals filed an 8-K confirming the departure of Elizabeth H.Z. Thompson, Ph.D., Executive Vice President and Head of Research and Development, effective October 23, 2026. Dr. Thompson had previously announced her planned retirement for personal reasons in April 2026. She will remain as a consultant through December 31, 2026, while the company searches for a replacement. This is a routine, pre-announced executive transition with no financial impact disclosed.
Key Facts
- Elizabeth H.Z. Thompson, Ph.D., EVP and Head of R&D, departed as employee effective October 23, 2026
- Departure was previously disclosed on May 1, 2026, as a planned retirement for personal reasons
- Dr. Thompson will provide limited consulting services through December 31, 2026
- Company is in the process of identifying a replacement for the Head of R&D role
Financial Impact
No financial figures disclosed in the filing
Risk Factors
- Extended vacancy in the Head of R&D role could slow pipeline execution if replacement is not named promptly
Investment Themes
Documents Analyzed
This report is based on 4 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 8-K Filing (Primary) | 0001193125-26-430596 |
| Document: 0001193125-26-430596-index-headers.html | 0001193125-26-430596 |
| Document: 0001193125-26-430596-index.html | 0001193125-26-430596 |
| Document: 0001193125-26-430596.txt | 0001193125-26-430596 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 23, 2026 3d ago | 8-K | $19.73 | awaiting T+20 | — | $19.75 (+0.10%) |
Sep 24, 2026 4w ago | 8-K | $20.68 $19.73 | ▼ −4.59% | ▼ −3.12% | $19.75 (−4.50%) |
Sep 11, 2026 6w ago | 8-K | $27.52 $19.41 | ▼ −29.47% | ▼ −31.73% | $19.75 (−28.23%) |
Aug 16, 2026 10w ago | Institutional Cluster | $29.01 $26.76 | ▼ −7.76% | ▼ −5.78% | $19.75 (−31.92%) |
Aug 7, 2026 11w ago | Insider Cluster | $29.39 $27.58 | ▼ −6.16% | ▼ −5.24% | $19.75 (−32.80%) |
Jun 11, 2026 19w ago | Institutional Cluster | $21.39 $26.41 | ▼ −23.47% | ▼ −21.58% | $19.75 (+7.67%) |
May 6, 2026 24w ago | 8-K | $22.56 $21.43 | ▲ +5.01% | ▲ +8.14% | $19.75 (+12.46%) |
May 4, 2026 25w ago | Insider Cluster | $22.19 $21.52 | ▼ −3.02% | ▼ −8.66% | $19.75 (−11.00%) |
Mar 25, 2026 30w ago | Insider Cluster | $22.01 $22.11 | ▲ +0.45% | ▼ −7.41% | $19.75 (−10.27%) |
Mar 5, 2026 33w ago | 8-K | $22.40 $22.20 | ▼ −0.89% | ▲ +2.90% | $19.75 (−11.83%) |
US Market Status
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