ACAD Institutional Ownership & Shareholders
ACADIA PHARMACEUTICALS INC (ACAD) is currently held by 343 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $4.25B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Baker Bros. Advisors Lp is currently the largest disclosed institutional shareholder of ACAD tracked by InsiderSet, reporting ownership valued at approximately $1.09B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $883.58M, representing an estimated loss of -18.62% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 65% of the total disclosed ACAD value among the investors covered in this analysis. Major shareholders include Baker Bros. Advisors Lp, Blackrock, Inc., State Street Corp, and several other long-term asset managers with concentrated positions in ACADIA PHARMACEUTICALS INC (ACAD).
This page ranks the largest institutional ACAD shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
343
Total Reported Value
$4.25B
Largest Holder
Baker Bros. Advisors Lp
Largest Position
$1.09B
Insider Transactions (90d)
6
Latest Filing Quarter
Q2 2026
New Institutional Positions
44
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Baker Bros. Advisors Lp | 5.44% | 42,912,904 | $1,085,696,471 | $883,576,693 | -$202,119,778 | -18.62% | |
| Blackrock, Inc. | 0.01% | 22,515,173 | $569,633,876 | $463,587,412 | -$106,046,464 | -18.62% | |
| State Street Corp | 0.01% | 9,076,212 | $229,628,164 | $186,879,205 | -$42,748,959 | -18.62% | |
| Vanguard Portfolio Management Llc | 0.01% | 8,838,450 | $223,612,785 | $181,983,686 | -$41,629,100 | -18.62% | |
| Rtw Investments, Lp | 1.54% | 7,144,524 | $180,756,457 | $147,105,749 | -$33,650,708 | -18.62% | |
| Vanguard Capital Management Llc | 0.00% | 5,763,750 | $145,822,875 | $118,675,613 | -$27,147,263 | -18.62% | |
| Dimensional Fund Advisors Lp | 0.02% | 3,694,988 | $93,482,749 | $76,079,803 | -$17,402,946 | -18.62% | |
| Geode Capital Management, Llc | 0.00% | 3,358,129 | $84,977,229 | $69,143,876 | -$15,833,353 | -18.63% | |
| Palo Alto Investors Lp | 10.01% | 2,864,096 | $72,461,629 | $58,971,737 | -$13,489,892 | -18.62% | |
| Goldman Sachs Group Inc | 0.01% | 2,580,115 | $65,276,910 | $53,124,568 | -$12,152,342 | -18.62% | |
| Qube Research & Technologies Ltd | 0.07% | 2,446,610 | $61,899,233 | $50,375,700 | -$11,523,533 | -18.62% | |
| Point72 Asset Management, L.P. | 0.09% | 2,433,168 | $61,559,150 | $50,098,929 | -$11,460,221 | -18.62% | |
| Citadel Advisors Llc | 0.03% | 2,182,177 | $55,209,078 | $44,931,024 | -$10,278,054 | -18.62% | |
| Pictet Asset Management Holding Sa | 0.05% | 1,983,198 | $50,146,450 | $40,834,047 | -$9,312,403 | -18.57% | |
| Arrowstreet Capital, Limited Partnership | 0.02% | 1,969,445 | $49,826,959 | $40,550,873 | -$9,276,086 | -18.62% | |
| Marshall Wace, Llp | 0.04% | 1,764,838 | $44,650,402 | $36,338,014 | -$8,312,388 | -18.62% | |
| D. E. Shaw & Co., Inc. | 0.03% | 1,697,937 | $42,957,806 | $34,960,523 | -$7,997,283 | -18.62% | |
| Braidwell Lp | 1.54% | 1,646,399 | $41,653,895 | $33,899,355 | -$7,754,540 | -18.62% | |
| Norges Bank | 0.00% | 1,623,308 | $41,069,692 | $33,423,912 | -$7,645,780 | -18.62% | |
| Frazier Life Sciences Management, L.P. | 0.79% | 1,438,198 | $36,386,409 | $29,612,497 | -$6,773,912 | -18.62% | |
| Northern Trust Corp | 0.00% | 1,367,422 | $34,595,776 | $28,155,219 | -$6,440,557 | -18.62% | |
| Nuveen, Llc | 0.01% | 1,348,192 | $34,109,259 | $27,759,273 | -$6,349,986 | -18.62% | |
| Artisan Partners Limited Partnership | 0.05% | 1,325,134 | $33,525,890 | $27,284,509 | -$6,241,381 | -18.62% | |
| Bank Of America Corp | 0.00% | 1,300,385 | $32,899,740 | $26,774,927 | -$6,124,813 | -18.62% | |
| Renaissance Technologies LLC | Jim Simons | 0.04% | 1,282,596 | $32,449,679 | $26,408,652 | -$6,041,027 | -18.62% |
| Charles Schwab Investment Management Inc | 0.00% | 1,206,336 | $30,520,301 | $24,838,458 | -$5,681,843 | -18.62% | |
| Allspring Global Investments Holdings, Llc | 0.04% | 1,132,566 | $28,540,663 | $23,319,534 | -$5,221,129 | -18.29% | |
| Rockefeller Capital Management L.P. | 0.04% | 1,015,420 | $25,690,127 | $20,907,498 | -$4,782,629 | -18.62% | |
| Morgan Stanley | 0.00% | 946,639 | $23,949,976 | $19,491,297 | -$4,458,679 | -18.62% | |
| Two Sigma Investments, Lp | 0.02% | 926,992 | $23,452,898 | $19,086,765 | -$4,366,133 | -18.62% | |
| Vanguard Fiduciary Trust Co | 0.01% | 912,370 | $23,082,961 | $18,785,698 | -$4,297,263 | -18.62% | |
| Massachusetts Financial Services Co | 0.01% | 855,435 | $21,642,506 | $17,613,407 | -$4,029,099 | -18.62% | |
| Invesco Ltd. | 0.00% | 810,462 | $20,504,689 | $16,687,413 | -$3,817,276 | -18.62% | |
| Principal Financial Group Inc | 0.01% | 789,196 | $19,966,658 | $16,249,546 | -$3,717,112 | -18.62% | |
| Bank Of New York Mellon Corp | 0.00% | 760,629 | $19,243,919 | $15,661,351 | -$3,582,568 | -18.62% | |
| Allianz Asset Management Gmbh | 0.02% | 757,195 | $19,157,034 | $15,590,645 | -$3,566,389 | -18.62% | |
| Panagora Asset Management Inc | 0.06% | 710,906 | $17,985,922 | $14,637,555 | -$3,348,367 | -18.62% | |
| Fisher Asset Management, Llc | 0.01% | 699,230 | $17,690,535 | $14,397,146 | -$3,293,389 | -18.62% | |
| Fred Alger Management, Llc | 0.05% | 648,611 | $16,409,858 | $13,354,900 | -$3,054,958 | -18.62% | |
| Rice Hall James & Associates, Llc | 0.76% | 618,887 | $15,657,841 | $12,742,883 | -$2,914,958 | -18.62% | |
| Ameriprise Financial Inc | 0.00% | 606,536 | $15,348,144 | $12,488,576 | -$2,859,568 | -18.63% | |
| Millennium Management Llc | 0.01% | 589,924 | $14,925,077 | $12,146,535 | -$2,778,542 | -18.62% | |
| Manufacturers Life Insurance Company, The | 0.01% | 583,852 | $14,771,456 | $12,021,513 | -$2,749,943 | -18.62% | |
| Aqr Capital Management Llc | 0.00% | 522,749 | $13,225,551 | $10,763,402 | -$2,462,149 | -18.62% | |
| Adage Capital Partners Gp, L.L.C. | 0.02% | 510,000 | $12,903,000 | $10,500,900 | -$2,402,100 | -18.62% | |
| Glenmede Trust Co Na | 0.05% | 488,546 | $12,360,212 | $10,059,162 | -$2,301,050 | -18.62% | |
| Hudson Bay Capital Management Lp | 0.06% | 465,000 | $11,764,500 | $9,574,350 | -$2,190,150 | -18.62% | |
| Ubs Group Ag | 0.00% | 460,053 | $11,639,341 | $9,472,491 | -$2,166,850 | -18.62% | |
| Jupiter Asset Management Ltd | 0.06% | 458,466 | $11,599,190 | $9,439,815 | -$2,159,375 | -18.62% | |
| Public Sector Pension Investment Board | 0.03% | 435,375 | $11,014,988 | $8,964,371 | -$2,050,617 | -18.62% |
Frequently asked questions about ACAD
Who are the largest institutional holders of ACAD?
The largest institutional holders of ACAD reported in the latest SEC Form 13F filings include Baker Bros. Advisors Lp, Blackrock, Inc., State Street Corp, Vanguard Portfolio Management Llc, and Rtw Investments, Lp. InsiderSet ranks institutional holders by their latest reported ACAD position.
What is ACAD institutional ownership?
This page tracks ACAD positions reported by institutional investment managers through SEC Form 13F. ACADIA PHARMACEUTICALS INC (ACAD) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own ACAD?
InsiderSet currently tracks 343 institutional managers reporting ACAD holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of ACAD shareholders.
How much ACAD stock do institutions own?
Institutional investment managers disclosed approximately $4.25B in ACAD holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was ACAD institutional ownership last updated?
The latest ACAD institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional ACAD holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its ACAD position after the reporting date.
Are institutions buying or selling ACAD?
Institutional buying and selling can be analyzed by comparing ACAD positions across consecutive 13F reporting periods. InsiderSet's ACAD Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ACAD ownership changes.
How has ACAD institutional ownership changed over time?
InsiderSet tracks ACAD institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.