ACADIA Pharmaceuticals Inc.
MX ˙ BMV ˙ US0042251084
SecurityMX:ACAD / ACADIA Pharmaceuticals Inc.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership149,327 shares
Latest Disclosed Value $ 3,988,524
Alliancebernstein L.p. reports 4.43% decrease in ownership of ACAD / ACADIA Pharmaceuticals Inc.

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 149,327 shares of ACADIA Pharmaceuticals Inc. (MX:ACAD) valued at $3,988,524 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 156,243 shares of ACADIA Pharmaceuticals Inc.. This represents a change in shares of -4.43% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 149,327 -6,916 -4.43 3,989 -4.43 0.0011
2026-02-17 2025-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 156,243 1,250 0.81 4,173 26.19 0.0013
2025-11-14 2025-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 154,993 -57 -0.04 3,308 -1.11 0.0010
2025-08-14 2025-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 155,050 9,770 6.72 3,344 38.58 0.0011
2025-05-15 2025-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 145,280 -2,200 -1.49 2,413 -10.83 0.0009
2025-02-12 2024-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 147,480 0 0.00 2,706 19.31 0.0009
2024-11-14 2024-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 147,480 0 0.00 2,268 -5.34 0.0008
2024-08-14 2024-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 147,480 -401 -0.27 2,397 -12.36 0.0008
2024-05-14 2024-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 147,881 17,100 13.08 2,734 -33.22 0.0010
2024-02-14 2023-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 130,781 -520 -0.40 4,095 49.63 0.0016
2023-11-14 2023-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 131,301 -60,810 -31.65 2,736 -40.53 0.0012
2023-08-15 2023-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 192,111 39,910 26.22 4,601 60.65 0.0019
2023-05-15 2023-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 152,201 -50,000 -24.73 2,864 -11.03 0.0012
2023-02-15 2022-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 202,201 50,000 32.85 3,219 29.28 0.0014
2022-11-15 2022-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 152,201 -17,300 -10.21 2,490 4.27 0.0012
2022-08-15 2022-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 169,501 15,900 10.35 2,388 -35.81 0.0011
2022-05-13 2022-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 153,601 -49,649 -24.43 3,720 -21.59 0.0014
2022-02-14 2021-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 203,250 -73,800 -26.64 4,744 3.09 0.0017
2021-11-10 2021-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 277,050 122,660 79.45 4,602 22.20 0.0018
2021-07-30 2021-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 154,390 69,561 82.00 3,766 72.04 0.0015
2021-05-06 2021-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 84,829 -27,369 -24.39 2,189 -63.50 0.0010
2021-02-08 2020-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 112,198 33,299 42.20 5,998 84.27 0.0028
2020-11-12 2020-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 78,899 -12,871 -14.03 3,255 -26.82 0.0018
2020-08-13 2020-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 91,770 -149,999 -62.04 4,448 -56.46 0.0026
2020-05-14 2020-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 241,769 -3,300 -1.35 10,215 -2.57 0.0073
2020-02-18 2019-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 245,069 30,580 14.26 10,484 35.82 0.0060
2019-11-14 2019-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 214,489 50,790 31.03 7,719 76.39 0.0048
2019-08-14 2019-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 163,699 9,700 6.30 4,376 5.83 0.0027
2019-05-14 2019-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 153,999 -69,741 -31.17 4,135 14.29 0.0027
2019-02-13 2018-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 223,740 77,400 52.89 3,618 19.09 0.0027
2018-11-08 2018-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 146,340 0 0.00 3,038 35.93 0.0020
2018-08-13 2018-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 146,340 45,744 45.47 2,235 -1.11 0.0016
2018-05-14 2018-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 100,596 2,309 2.35 2,260 -23.62 0.0016
2018-02-13 2017-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 98,287 -150 -0.15 2,959 -20.20 0.0021
2017-11-13 2017-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 98,437 -58 -0.06 3,708 34.98 0.0028
2017-08-10 2017-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 98,495 -30,312 -23.53 2,747 -37.96 0.0021
2017-05-11 2017-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 128,807 -120 -0.09 4,428 19.10 0.0035
2017-02-13 2016-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 128,927 -443 -0.34 3,718 -9.65 0.0031
2016-11-10 2016-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 129,370 -4,900 -3.65 4,115 -5.58 0.0035
2016-08-11 2016-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 134,270 -50,290 -27.25 4,358 -15.54 0.0038
2016-05-13 2016-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 184,560 -1,356,372 -88.02 5,160 -90.61 0.0044
2016-02-16 2015-12-31 13F/A-1 ACADIA PHARMACEUTICALS COM 004225108 1,540,932 128,954 9.13 54,934 17.65 0.0467
2016-02-12 2015-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,540,932 50,959
2015-11-13 2015-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,411,978 1,261,578 838.82 46,694 641.29 0.0401
2015-08-14 2015-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 150,400 0 0.00 6,299 28.50 0.0052
2015-05-13 2015-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 150,400 400 0.27 4,902 2.92 0.0040
2015-02-13 2014-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 150,000 -3,400 -2.22 4,763 25.41 0.0040
2014-11-13 2014-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 153,400 0 0.00 3,798 9.61 0.0032
2014-08-13 2014-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 153,400 -69 -0.04 3,465 -7.20 0.0029
2014-05-13 2014-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 153,469 5,753 3.89 3,734 1.16 0.0032
2014-02-13 2013-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 147,716 -6 -0.00 3,691 -9.04 0.0033
2013-11-14 2013-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 147,722 13,601 10.14 4,058 66.72 0.0040
2013-08-13 2013-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 134,121 134,121 2,434 0.0026
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.