Massivemarkets

ACAD

Acadia Pharmaceuticals Inc.

Nasdaq · usd

$20.07-0.24 (-1.18%)
As of 9:01:34 AM EDT on Oct 23, 2026 · 15-minute delayed

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.

-0.05%
-$0.01 over 1D
$20.07$20.08$20.08$20.097:15 AM8:10 AM8:45 AM$20.08
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).

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.

Build with AI

Build an analysis of ACAD with your agent

Point Claude or ChatGPT at the Massive MCP server and recreate this page from live data.

Connect the Massive MCP server (API reference: massive.com/docs/llms.txt) and build a ACAD analysis: the latest quote, key ratios (P/E, P/S, ROE), short interest, recent insider activity and the latest news.

Want the most up-to-date, real-time data? Connect to the Massive API and MCP server — the source behind every number on this page — covering stocks, options, indices, currencies and futures. Docs: https://massive.com/docs/rest. Get a free API key.

Nothing on this page is investment advice. All data and content is provided for informational purposes under our Terms of Service.