ACADIA Pharmaceuticals Inc.
US ˙ NasdaqGS ˙ US0042251084

SecurityACAD / ACADIA Pharmaceuticals Inc.
InstitutionMan Group plc
Latest Disclosed Ownership129,384 shares
Latest Disclosed Value $ 2,880,088
Man Group plc reports 62.84% decrease in ownership of ACAD / ACADIA Pharmaceuticals Inc.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 129,384 shares of ACADIA Pharmaceuticals Inc. (US:ACAD) valued at $2,880,088 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 348,160 shares of ACADIA Pharmaceuticals Inc.. This represents a change in shares of -62.84% during the quarter. The current value of the position is $2,772,699 USD.

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 129,384 -218,776 -62.84 2,880 -69.03 0.0052
2026-02-17 2025-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 348,160 -29,013 -7.69 9,299 15.54 0.0158
2025-11-14 2025-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 377,173 90,240 31.45 8,049 30.04 0.0140
2025-08-14 2025-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 286,933 90,615 46.16 6,189 89.85 0.0118
2025-05-15 2025-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 196,318 -1,024,704 -83.92 3,261 -85.45 0.0083
2025-02-14 2024-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,221,022 -54,411 -4.27 22,406 14.22 0.0590
2024-11-14 2024-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,275,433 1,218,288 2,131.92 19,616 2,013.79 0.0511
2024-08-14 2024-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 57,145 6,844 13.61 929 -0.22 0.0023
2024-05-15 2024-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 50,301 18,081 56.12 930 -7.74 0.0023
2024-02-14 2023-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 32,220 1,009 -38.95 0.0028
2023-11-14 2023-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 1,652 -75.13 0.0051
2023-08-14 2023-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 277,196 6,639 -47.88 0.0205
2023-05-15 2023-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 12,737 -16.28 0.0453
2023-02-14 2022-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 955,688 932,503 4,022.01 15,215 3,914.25 0.0545
2022-11-14 2022-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 23,185 23,185 379 0.0018
2022-08-15 2022-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 0 -19,436 -100.00 0 -100.00
2022-05-16 2022-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 19,436 19,436 470 0.0016
2021-05-17 2021-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 0 -50,129 -100.00 0 -100.00
2021-02-16 2020-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 50,129 -9,131 -15.41 2,680 9.66 0.0118
2020-11-16 2020-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 59,260 -56,160 -48.66 2,444 -56.31 0.0096
2020-08-14 2020-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 115,420 65,835 132.77 5,594 167.02 0.0282
2020-05-15 2020-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 49,585 -37,732 -43.21 2,095 -43.91 0.0136
2020-02-18 2019-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 87,317 87,317 3,735 0.0123
2019-08-14 2019-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 0 -48,215 -100.00 0 -100.00
2019-05-15 2019-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 48,215 -1,646 -3.30 1,294 60.55 0.0049
2019-02-14 2018-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 49,861 49,861 806 0.0036
2018-08-14 2018-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 0 -6,314 -100.00 0 -100.00
2018-05-15 2018-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 6,314 6,314 142 0.0006
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.