ACADIA Pharmaceuticals Inc.
MX ˙ BMV ˙ US0042251084
SecurityMX:ACAD / ACADIA Pharmaceuticals Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership1,272,611 shares
Latest Disclosed Value $ 28,328,322
Northern Trust Corp reports 2.98% increase in ownership of ACAD / ACADIA Pharmaceuticals Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 1,272,611 shares of ACADIA Pharmaceuticals Inc. (MX:ACAD) valued at $28,328,322 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,235,829 shares of ACADIA Pharmaceuticals Inc.. This represents a change in shares of 2.98% 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)
2026-05-14 2026-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,272,611 36,782 2.98 28,328 -14.18 0.0008
2026-02-17 2025-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,235,829 -67,707 -5.19 33,009 18.66 0.0042
2025-11-14 2025-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,303,536 920 0.07 27,817 -1.00 0.0036
2025-08-13 2025-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,302,616 -72,597 -5.28 28,097 23.01 0.0039
2025-05-13 2025-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,375,213 142,847 11.59 22,842 1.01 0.0034
2025-02-14 2024-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,232,366 106,236 9.43 22,614 30.57 0.0032
2024-11-13 2024-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,126,130 -18,628 -1.63 17,320 -6.90 0.0028
2024-08-14 2024-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,144,758 -47,068 -3.95 18,602 -15.58 0.0031
2024-05-14 2024-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,191,826 -22,307 -1.84 22,037 -42.03 0.0038
2024-02-13 2023-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,214,133 -6,544 -0.54 38,015 49.44 0.0069
2023-11-13 2023-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,220,677 57,555 4.95 25,439 -8.68 0.0049
2023-08-11 2023-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,163,122 -3,602 -0.31 27,857 26.87 0.0054
2023-05-15 2023-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,166,724 39,440 3.50 21,958 22.35 0.0044
2023-02-13 2022-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,127,284 10,345 0.93 17,946 -1.78 0.0038
2022-11-14 2022-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,116,939 -13,848 -1.22 18,272 14.68 0.0042
2022-08-12 2022-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,130,787 -39,779 -3.40 15,933 -43.80 0.0034
2022-05-13 2022-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,170,566 -54,096 -4.42 28,350 -0.82 0.0050
2022-02-08 2021-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,224,662 -74,657 -5.75 28,583 32.44 0.0047
2021-11-15 2021-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,299,319 -40,331 -3.01 21,582 -33.95 0.0038
2021-08-13 2021-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,339,650 733,652 121.07 32,674 108.98 0.0058
2021-05-12 2021-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 605,998 8,625 1.44 15,635 -51.04 0.0029
2021-02-11 2020-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 597,373 9,490 1.61 31,935 31.69 0.0062
2020-11-16 2020-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 587,883 -16,917 -2.80 24,250 -17.28 0.0053
2020-08-14 2020-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 604,800 -892,709 -59.61 29,314 -53.67 0.0069
2020-05-14 2020-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,497,509 21,989 1.49 63,270 0.23 0.0182
2020-02-14 2019-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,475,520 54,925 3.87 63,123 23.46 0.0141
2019-11-13 2019-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,420,595 -48,189 -3.28 51,128 30.23 0.0122
2019-08-13 2019-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,468,784 -17,862 -1.20 39,260 -1.64 0.0093
2019-05-13 2019-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,486,646 143,297 10.67 39,915 83.75 0.0099
2019-02-12 2018-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,343,349 56,449 4.39 21,722 -18.69 0.0061
2018-11-14 2018-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,286,900 25,365 2.01 26,716 38.68 0.0065
2018-09-18 2018-06-30 13F/A-1 ACADIA PHARMACEUTICALS COM 004225108 1,261,535 771,631 157.51 19,264 75.00 0.0049
2018-08-14 2018-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,269,645 779,741 19,388
2018-05-09 2018-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 489,904 17,680 3.74 11,008 -22.58 0.0029
2018-02-14 2017-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 472,224 691 0.15 14,219 -19.95 0.0036
2017-11-13 2017-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 471,533 2,090 0.45 17,762 35.66 0.0046
2017-08-11 2017-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 469,443 -4,885 -1.03 13,093 -19.71 0.0037
2017-05-12 2017-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 474,328 11,862 2.56 16,307 22.26 0.0047
2017-02-13 2016-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 462,466 26,318 6.03 13,338 -3.86 0.0041
2016-11-09 2016-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 436,148 27,821 6.81 13,873 4.66 0.0043
2016-08-12 2016-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 408,327 -576,878 -58.55 13,255 -52.11 0.0043
2016-08-19 2016-03-31 13F/A-1 ACADIA PHARMACEUTICALS COM 004225108 985,205 68,501 7.47 27,677 -15.31 0.0092
2016-05-13 2016-03-31 13F Acadia Pharmaceutica COMM 004225108 985,205 27,547
2016-02-12 2015-12-31 13F Acadia Pharmaceutica COMM 004225108 916,704 17,599 1.96 32,681 9.91 0.0108
2015-11-12 2015-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 899,105 51,668 6.10 29,734 -16.22 0.0099
2015-08-13 2015-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 847,437 -48,373 -5.40 35,491 21.57 0.0241
2015-05-14 2015-03-31 13F Acadia Pharmaceutica COMM 004225108 895,810 14,225 1.61 29,194 4.30 0.0088
2015-02-12 2014-12-31 13F Acadia Pharmaceutica COM 004225108 881,585 -24,565 -2.71 27,990 24.75 0.0085
2014-11-13 2014-09-30 13F Acadia Pharmaceutica COMM 004225108 906,150 -29,343 -3.14 22,437 6.18 0.0070
2014-08-14 2014-06-30 13F ACADIA PHARMACEUTICALS com 004225108 935,493 -26,063 -2.71 21,132 -9.67 0.0066
2014-05-14 2014-03-31 13F ACADIA PHARMACEUTICALS COMM 004225108 961,556 -36,174 -3.63 23,395 -6.17 0.0074
2014-02-21 2013-12-31 13F/A-1 ACADIA PHARMACEUTICALS COM 004225108 997,730 -45,949 -4.40 24,933 -13.03 0.0080
2014-02-12 2013-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 997,730 24,933
2013-11-13 2013-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,043,679 569,512 120.11 28,670 233.10 0.0101
2013-08-09 2013-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 474,167 474,167 8,607 0.0031
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.