ACAD
Acadia Pharmaceuticals Inc.
Nasdaq · usd
Acadia Pharmaceuticals Inc. (ACAD) trades at $20.07 (-1.18%) as of 9:01:34 AM EDT on Oct 23, 2026, -20.13% over the past month. Market cap is $3.5B, with 2.9 days to cover in short interest.
Stock performance
How Acadia Pharmaceuticals Inc. (ACAD) stock has performed from one day to one year, with its 52-week range.
- 1D
- +0.59%
- 1W
- +3.04%
- 1M
- -20.13%
- YTD
- -23.96%
- 1Y
- -7.77%
- 52-wk range
- $18.39 – $30.96
Key statistics
Today's trading snapshot for ACAD: day range, open, previous close, volume and market cap.
- Day range
- $20.12 – $20.50
- Open
- $20.30
- Prev close
- $20.31
- Volume
- 1.23M
- Market cap
- $3.5B
- Shares out
- 172.31M
Valuation and profitability ratios: P/E, P/S, ROE
Valuation and profitability ratios for Acadia Pharmaceuticals Inc.: P/E, P/S, P/B, ROE and more.
- P/E
- 9.20
- P/S
- 3.07
- P/B
- 2.68
- P/FCF
- 24.03
- ROE
- 29.1%
- ROA
- 21.8%
- Debt/Equity
- 0.00
- Div yield
- 0.00%
As of Oct 22, 2026
8-K filings
Material corporate events Acadia Pharmaceuticals Inc. has disclosed to the SEC on Form 8-K.
- Business developmentsSep 24, 2026
For the primary endpoint of change from baseline in the Scale for the Assessment of Positive Symptoms-Hallucinations and Delusions subscales (SAPS-H+D), once daily 60 mg remlifanserin demonstrated a change of -12.6 versus a -10.4 change for placebo at week 6, yielding a standardized effect size of 0.26 (p=0.0603). For the key secondary endpoint, Clinical Global Impression – Severity (CGI-S-ADP), the 60 mg dose achieved a change from baseline of –1.3 versus a change of –0.9 for placebo at week 6, yielding a standardized effect size of 0.37 [p=0.0077 (nominal)].
- Material agreementsSep 11, 2026
On August 24, 2026, the United States District Court for the Southern District of California (the "Court") preliminarily approved the settlement ("Settlement") of the stockholder derivative action captioned Kanner et al. v. Biggar et al., Case No. 3:23-cv-02293-WQH-MSB.
- Shareholder meetingsMay 29, 2026
The election of three nominees to serve as Class I directors on the Company's Board of Directors until the Company's 2029 Annual Meeting of Stockholders and their successors are duly elected and qualified, or until their earlier death, resignation or removal, was carried out at the Annual Meeting. The following three Class I directors were elected by the votes indicated: James M. Daly (146,927,745 For, 3,521,002 Withheld), Edmund P. Harrigan, M.D. (128,460,130 For, 21,988,617 Withheld), Adora Ndu, Pharm.D., J.D. (134,540,552 For, 15,908,195 Withheld).
- Executive leadershipMay 1, 2026
On April 27, 2026, Elizabeth H.Z. Thompson, Ph.D., Head of Research and Development, informed Acadia Pharmaceuticals Inc. (the "Company") of her planned retirement. Dr. Thompson has decided to retire for personal reasons. She has committed to continuing in her role as Head of Research and Development for a transitional period until a successor is appointed, after which she intends to remain with the Company as a consultant through the end of 2026.
- Board of directorsMar 5, 2026
On March 3, 2026, the board of directors (the "Board") of Acadia Pharmaceuticals Inc. (the "Company"), upon recommendation of the Nominating and Corporate Governance Committee of the Board, appointed Jonathan M. Poole to the Board to fill a vacancy and as a member of the Audit Committee of the Board, effective immediately. Mr. Poole will serve as a Class II director, with an initial term expiring at the Company's 2027 Annual Meeting of Stockholders.
ACAD short interest
How heavily ACAD is shorted: shares short, days to cover and average daily volume.
- Days to cover
- 2.9
- Short interest
- 8.28M
- Avg volume
- 2.83M
As of · reported to FINRA twice monthly.
ACAD news
The latest news and headlines about Acadia Pharmaceuticals Inc. (ACAD).
- Alzheimer's Disease Clinical Trial and Competitive Landscape Enters a New Phase as 200+ Companies Advance Clinical Programs | DelveInsightpositiveGlobeNewswire Inc.· Oct 22, 2026
- Will Auvelity Continue to Aid Axsome's Top-Line Growth in Q3?positiveZacks Investment Research· Oct 21, 2026
- Can Nuplazid and Daybue Strengthen Acadia's Growth Prospects?positiveZacks Investment Research· Oct 13, 2026
- 4 CNS Drug Stocks Worth Watching This World Mental Health DaypositiveZacks Investment Research· Oct 9, 2026
- Acadia's Daybue Patent Allowance Extends U.S. Protection to March 2041positiveZacks Investment Research· Sep 29, 2026
Frequently asked questions
What is the Acadia Pharmaceuticals Inc. (ACAD) stock price today?
Acadia Pharmaceuticals Inc. (ACAD) is trading at $20.07 (-1.18% on the day) as of 9:01:34 AM EDT on Oct 23, 2026. Prices are delayed at least 15 minutes; real-time quotes are available from the Massive API.
What is Acadia Pharmaceuticals Inc.?
Acadia Pharmaceuticals Inc is a biopharmaceutical company focused on turning scientific promise into making a difference for underserved neurological and rare disease communities around the world. It has two franchises in neurological and rare diseases.
What is the short interest in ACAD?
As of Sep 30, 2026, ACAD has 8.28M shares short and 2.9 days to cover.
What exchange is ACAD listed on?
Acadia Pharmaceuticals Inc. (ACAD) trades on Nasdaq in USD, in the PHARMACEUTICAL PREPARATIONS industry.
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