ACADIA Pharmaceuticals Inc.
US ˙ NasdaqGS ˙ US0042251084

SecurityACAD / ACADIA Pharmaceuticals Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership100,399 shares
Latest Disclosed Value $ 2,235
Natixis Advisors, L.p. reports 40.12% increase in ownership of ACAD / ACADIA Pharmaceuticals Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 100,399 shares of ACADIA Pharmaceuticals Inc. (US:ACAD) valued at $2,234,882 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 71,652 shares of ACADIA Pharmaceuticals Inc.. This represents a change in shares of 40.12% during the quarter. The current value of the position is $2,151,551 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)
2026-05-13 2026-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 100,399 28,747 40.12 2 100.00 0.0031
2026-02-10 2025-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 71,652 7,418 11.55 2 0.00 0.0027
2025-11-13 2025-09-30 13F ACADIA PHARMACEUTICALS IN COM 004225108 64,234 -7,944 -11.01 1 0.00 0.0020
2025-08-13 2025-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 72,178 9,283 14.76 2 0.00 0.0025
2025-05-08 2025-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 62,895 15,888 33.80 1 0.0019
2025-02-10 2024-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 47,007 6,519 16.10 1 0.0016
2024-11-06 2024-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 40,488 14,961 58.61 1 0.0012
2024-08-01 2024-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 25,527 7,697 43.17 0 0.0009
2024-04-25 2024-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 17,830 -23,045 -56.38 0 -100.00 0.0008
2024-02-06 2023-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 40,875 6,112 17.58 1 0.0034
2023-11-13 2023-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 34,763 9,676 38.57 1 0.0022
2023-08-15 2023-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 25,087 11,110 79.49 1 0.0019
2023-05-11 2023-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 13,977 13,977 0 0.0009
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.