ACADACADIA Pharmaceuticals Inc.

$19.78-19% 1Y

Who owns ACAD

349 institutions reported holding ACAD for 2026Q2, together 98% of the company, more than the 338 a quarter earlier.

349

Institutions reporting a position · as of 2026Q2 · up from 338 the quarter before

Shares held by institutions
168.6M

Shares held by institutions · 98% of the company · long US equity positions only, as reported on Form 13F

Reported value
$4.26B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
56%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
53
New positions
50
Positions exited
41
Added to
122
Reduced
107
Top 10 holdersof the company
65%
Shares sold shortsettled Sep 15, 2026
9.7M
Short interestof shares outstanding
5.6%
Days to coverat the average daily volume
7.2
Change in the short positionsince the Aug 31, 2026 count
−0.75%
Institutional ownership by quarter, 2013Q2 to 2026Q2
QuarterFilersSharesReported value
2026Q2349168.6M$4.26B
2026Q1338164.6M$3.66B
2025Q4332166.1M$4.44B
2025Q3330167.4M$3.57B
2025Q2308169.8M$3.66B
2025Q1316173.0M$2.87B
2024Q4293162.9M$2.99B
2024Q3256156.0M$2.40B
2024Q2265161.2M$2.62B
2024Q1267161.4M$2.98B
2023Q4273159.5M$4.99B
2023Q3246156.0M$3.25B
2023Q2234159.2M$3.81B
2023Q1229156.9M$2.95B
2022Q4226155.3M$2.47B
2022Q3220152.3M$2.49B
Largest reported holders, 2026Q2
HolderShares% of companyValue
BAKER BROS. ADVISORS LP42.9M25%$1.09B
BlackRock Inc.22.5M13%$570M
VANGUARD GROUP INC15.7M9.1%$398M
STATE STREET CORP9.1M5.3%$230M
RTW INVESTMENTS, LP7.1M4.1%$181M
DIMENSIONAL FUND ADVISORS LP3.7M2.1%$93M
GEODE CAPITAL MANAGEMENT LLC3.4M1.9%$85M
Palo Alto Investors LP2.9M1.7%$72M
GOLDMAN SACHS GROUP INC2.6M1.5%$65M
Qube Research & Technologies Ltd2.4M1.4%$62M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 20269.7M5.6%7.2
Aug 31, 20269.7M5.6%6.9
Aug 14, 20269.5M5.5%4.5
Jul 31, 202610.8M6.3%8.0
Jul 15, 202611.0M6.4%7.6
Jun 30, 202611.0M6.3%4.8
Jun 15, 202611.8M6.8%11.3
May 29, 202611.8M6.8%8.1
May 15, 202611.4M6.6%5.9
Apr 30, 202611.2M6.5%5.9
Apr 15, 202611.0M6.4%7.4
Mar 31, 202610.6M6.2%4.9

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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