$ACAD

$19.85 +$0.11 (0.56%) Pre-market

$ACAD Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 172.3M shares outstanding

Who owns ACAD?

By type of holder

Institutions 97.9% Insiders 2.1% Everyone else 0.0%

Concentration Top 10 holders own 133.3%

Julian C. Baker 25.1% · Felix J. Baker 25.1%

Institutional ownership

97.9%

+2.2 pts vs last qtr

Institutional holders

353

+10 vs last qtr

Net shares bought

+3.8M

by institutions in Q2 2026

New / sold out

49 / 39

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Marshall Wace, LLP +1.7M
Norges Bank NEW +1.6M

Biggest sellers in Q2 2026

First Trust Advisors LP −3.2M
Braidwell LP −824.8K

Who is planning to sell?

Notices of proposed sale, last 12 months

$1.24M

4 notices from 4 people

Shares covered

52.7K

0.03% of the company

Arranged in advance

37%

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

James M Daly Director $671K
Kihara James Officer 10b5-1 $297K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2009–FY2025

+353.4%

+18.29% a year

Each share's claim on the business

−77.9%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $409M

over 10 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years71% 3–5 years9% 1–3 years13% Under 1 year7%

Quarterly turnover

8.9%

of institutional shares changed hands

Top 10 managers, median time held

5 years

Super Investors

Investment managers reporting ACAD on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
BB Baker Bros. Advisors LP 13D · 25.3%	42.9M	24.91%	+16.2K (+0.0%)	≤2021	5.4%
Shares held by quarter Peak holding42.9M (Q2'26) Change over 8 quarters+35.0K Share of the company24.910% Disclosed stake13D · 25.3% Baker Bros. Advisors LP's full portfolio →
B BlackRock, Inc.	22.5M	13.07%	+964.3K (+4.5%)	≤2021	0.0%
Shares held by quarter Peak holding22.5M (Q2'26) Change over 8 quarters+9.7M Share of the company13.070% BlackRock, Inc.'s full portfolio →

Baker Bros. Advisors LP

13D · 25.3%

42.9M

% of company

24.91%

Change vs last qtr

+16.2K (+0.0%)

Held since

≤2021

BlackRock, Inc.

22.5M

% of company

13.07%

Change vs last qtr

+964.3K (+4.5%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Acadia Pharmaceuticals Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ACAD on Form N-PORT; together they hold 33.7% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
IC iShares Core S&P Small-Cap ETF iShares Trust	$193M	7.6M	4.43%	0.17%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$103M	4.1M	2.36%	0.00%	June 30, 2026

iShares Core S&P Small-Cap ETF

iShares Trust

Position value

$193M

% of company

4.43%

% of the fund

0.17%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$103M

% of company

2.36%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Acadia Pharmaceuticals Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
JC Julian C. Baker 5%+ holder 13D · 25.4%	43.3M	25.13%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company25.130% Disclosed stake13D · 25.4% View the 13D/G filing →
FJ Felix J. Baker 5%+ holder 13D · 25.4%	43.3M	25.13%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company25.130% Disclosed stake13D · 25.4% View the 13D/G filing →

Julian C. Baker

5%+ holder13D · 25.4%

43.3M

% of company

25.13%

Change vs last qtr

—

Held since

—

Felix J. Baker

5%+ holder13D · 25.4%

43.3M

% of company

25.13%

Change vs last qtr

—

Held since

—

15 more holders behind a free account

See every insider and 5%+ holder of Acadia Pharmaceuticals Inc..

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