| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 12% | $280,489,106 | 19,878,746 | BlackRock, Inc. | 31 Jan 2025 | |||
| RTW INVESTMENTS, LP | 4.2% | -20% | $152,464,142 | -$33,311,249 | 7,144,524 | -18% | RTW Investments, LP | 30 Sep 2025 |
As of 30 Sep 2025, 327 institutional investors reported holding 167,656,338 shares of ACADIA PHARMACEUTICALS INC - Common Stock, $0.0001 par value (ACAD). This represents 99% of the company’s total 170,107,714 outstanding shares.
The largest institutional shareholders of ACADIA PHARMACEUTICALS INC - Common Stock, $0.0001 par value (ACAD) together control 77% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BAKER BROS. ADVISORS LP | 25% | 42,896,690 | 0% | 6.6% | $915,415,365 |
| BlackRock, Inc. | 12% | 20,268,644 | -1.9% | 0.01% | $432,532,865 |
| VANGUARD GROUP INC | 8.9% | 15,179,371 | -0.56% | 0% | $323,927,778 |
| STATE STREET CORP | 4.3% | 7,255,476 | +17% | 0.01% | $154,831,858 |
| RTW INVESTMENTS, LP | 4.2% | 7,144,524 | -21% | 1.9% | $152,464,142 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.8% | 3,132,644 | +3.6% | 0% | $66,859,595 |
| DIMENSIONAL FUND ADVISORS LP | 1.6% | 2,798,134 | +17% | 0.01% | $59,711,574 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 1.5% | 2,484,156 | +311% | 0.08% | $53,011,889 |
| Palo Alto Investors LP | 1.5% | 2,466,684 | -3.8% | 9.7% | $52,639,037 |
| BRAIDWELL LP | 1.4% | 2,378,655 | 1.5% | $50,760,498 | |
| MARSHALL WACE, LLP | 1.4% | 2,358,881 | +20% | 0.06% | $50,338,520 |
| GOLDMAN SACHS GROUP INC | 1.2% | 2,102,450 | +43% | 0.01% | $44,866,283 |
| FIRST TRUST ADVISORS LP | 1.1% | 1,943,152 | -20% | 0.03% | $41,466,863 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.97% | 1,648,864 | +390% | 0.02% | $35,186,758 |
| CITIGROUP INC | 0.93% | 1,574,070 | -5.6% | 0.02% | $33,590,654 |
| FRED ALGER MANAGEMENT, LLC | 0.92% | 1,567,035 | -34% | 0.13% | $33,440,527 |
| D. E. Shaw & Co., Inc. | 0.92% | 1,561,161 | -21% | 0.03% | $33,315,176 |
| DEUTSCHE BANK AG\ | 0.89% | 1,522,200 | +107% | 0.01% | $32,483,748 |
| TANG CAPITAL MANAGEMENT LLC | 0.88% | 1,500,000 | 0% | 1.2% | $32,010,000 |
| Point72 Asset Management, L.P. | 0.87% | 1,486,357 | -53% | 0.07% | $31,718,857 |
| MILLENNIUM MANAGEMENT LLC | 0.87% | 1,483,235 | +2052% | 0.02% | $31,652,235 |
| Pictet Asset Management Holding SA | 0.86% | 1,463,048 | -7.7% | 0.03% | $31,214,589 |
| RENAISSANCE TECHNOLOGIES LLC | 0.85% | 1,449,533 | -6.3% | 0.04% | $30,933,034 |
| NORTHERN TRUST CORP | 0.77% | 1,303,536 | +0.07% | 0% | $27,817,459 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.71% | 1,204,088 | +1.2% | 0% | $25,695,238 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 2,450,225 | $65,160,558 | +$79,135 | $26.71 | 32 |
| 2025 Q3 | 167,656,338 | $3,576,602,165 | -$46,292,348 | $21.34 | 327 |
| 2025 Q2 | 169,807,590 | $3,663,065,967 | -$28,402,849 | $21.57 | 308 |
| 2025 Q1 | 171,410,883 | $2,847,553,365 | +$139,123,402 | $16.61 | 314 |
| 2024 Q4 | 162,841,758 | $2,987,254,268 | +$159,320,971 | $18.35 | 292 |
| 2024 Q3 | 154,563,806 | $2,377,701,697 | -$123,998,639 | $15.38 | 258 |
| 2024 Q2 | 161,195,738 | $2,619,390,257 | +$12,291,411 | $16.25 | 265 |
| 2024 Q1 | 159,787,542 | $2,953,979,014 | -$59,935,243 | $18.49 | 268 |
| 2023 Q4 | 560,215 | $17,551,454 | +$4,145,557 | $31.31 | 3 |
| 2023 Q3 | 154,758,492 | $3,225,305,553 | -$78,765,363 | $20.84 | 244 |
| 2023 Q2 | 156,954,935 | $3,759,194,061 | +$21,867,840 | $23.95 | 229 |
| 2023 Q1 | 157,362,324 | $2,961,588,513 | +$53,588,342 | $18.82 | 229 |
| 2022 Q4 | 155,617,197 | $2,477,395,120 | +$28,420,807 | $15.92 | 219 |
| 2022 Q3 | 148,105,367 | $2,423,292,810 | +$23,470,572 | $16.36 | 204 |
| 2022 Q2 | 149,989,177 | $2,113,382,794 | +$2,597,508 | $14.09 | 224 |
| 2022 Q1 | 146,404,040 | $3,547,060,125 | -$24,587,035 | $24.22 | 249 |
| 2021 Q4 | 147,772,564 | $3,448,380,945 | +$76,442,524 | $23.34 | 234 |
| 2021 Q3 | 144,737,445 | $2,404,684,227 | -$86,102,937 | $16.61 | 229 |
| 2021 Q2 | 147,857,728 | $3,605,769,819 | +$55,747,211 | $24.39 | 235 |
| 2021 Q1 | 144,591,141 | $3,730,307,677 | -$222,398,025 | $25.80 | 257 |
| 2020 Q4 | 147,100,691 | $7,863,948,207 | -$112,035,697 | $53.46 | 296 |
| 2020 Q3 | 149,918,017 | $6,183,452,550 | -$100,755,681 | $41.25 | 259 |
| 2020 Q2 | 152,566,605 | $7,391,584,748 | -$49,283,741 | $48.47 | 291 |
| 2020 Q1 | 153,616,187 | $6,487,929,410 | +$187,100,341 | $42.25 | 240 |
| 2019 Q4 | 149,176,836 | $6,381,669,394 | +$117,136,919 | $42.78 | 268 |
| 2019 Q3 | 146,260,795 | $5,264,979,974 | +$305,388,963 | $35.99 | 227 |
| 2019 Q2 | 138,167,128 | $3,692,810,124 | +$175,307,516 | $26.73 | 193 |
| 2019 Q1 | 137,769,473 | $3,699,077,593 | -$504,210 | $26.85 | 195 |
| 2018 Q4 | 139,133,391 | $2,249,597,616 | +$303,188,596 | $16.17 | 173 |
| 2018 Q3 | 118,220,695 | $2,454,530,088 | +$122,407,650 | $20.76 | 176 |
| 2018 Q2 | 116,880,555 | $1,784,761,158 | -$131,328,718 | $15.27 | 178 |
| 2018 Q1 | 122,154,833 | $2,744,874,235 | +$37,745,440 | $22.47 | 189 |
| 2017 Q4 | 119,959,795 | $3,612,265,167 | +$37,244,502 | $30.11 | 204 |
| 2017 Q3 | 116,797,545 | $4,400,657,149 | -$40,652,465 | $37.67 | 203 |
| 2017 Q2 | 117,940,535 | $3,288,085,727 | +$72,163,063 | $27.89 | 195 |
| 2017 Q1 | 119,485,095 | $4,107,785,889 | +$169,104,990 | $34.38 | 211 |
| 2016 Q4 | 119,942,754 | $3,459,110,173 | +$99,389,058 | $28.84 | 214 |
| 2016 Q3 | 117,841,646 | $3,747,670,757 | +$216,639,428 | $31.81 | 226 |
| 2016 Q2 | 110,439,270 | $3,587,406,539 | +$35,391,714 | $32.46 | 222 |
| 2016 Q1 | 109,653,220 | $3,065,299,226 | +$337,913,933 | $27.96 | 208 |
| 2015 Q4 | 97,377,894 | $3,471,525,840 | -$45,929,482 | $35.65 | 207 |
| 2015 Q3 | 98,502,576 | $3,257,410,567 | +$12,919,647 | $33.07 | 183 |
| 2015 Q2 | 97,402,557 | $4,080,339,564 | +$68,015,702 | $41.88 | 186 |
| 2015 Q1 | 97,286,433 | $3,170,725,843 | +$38,282,883 | $32.59 | 192 |
| 2014 Q4 | 96,242,104 | $3,055,689,395 | +$57,916,488 | $31.75 | 180 |
| 2014 Q3 | 94,226,006 | $2,333,141,119 | -$12,881,565 | $24.76 | 162 |
| 2014 Q2 | 95,048,115 | $2,147,110,372 | +$93,853,346 | $22.59 | 158 |
| 2014 Q1 | 90,888,457 | $2,210,531,887 | +$190,170,941 | $24.33 | 162 |