ACADIA Pharmaceuticals Inc.
US ˙ NasdaqGS ˙ US0042251084

SecurityACAD / ACADIA Pharmaceuticals Inc.
InstitutionSquarepoint Ops LLC
Latest Disclosed Ownership370,458 shares
Latest Disclosed Value $ 8,246,395
Squarepoint Ops LLC ownership in ACAD / ACADIA Pharmaceuticals Inc.

On May 15, 2026 - Squarepoint Ops LLC filed a 13F-HR form disclosing ownership of 370,458 shares of ACADIA Pharmaceuticals Inc. (US:ACAD) valued at $8,246,395 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 40,709 shares of ACADIA Pharmaceuticals Inc.. This represents a change in shares of 810.01% during the quarter. The current value of the position is $7,938,915 USD.

Squarepoint Ops LLC has a history of taking positions in derivatives of the underlying security (ACAD) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

ACAD / ACADIA Pharmaceuticals Inc. Historical Put/Call Ratio
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 370,458 329,749 810.01 8,246 658.60 0.0097
2026-02-13 2025-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 40,709 40,709 1,087 0.0012
2025-08-27 2025-06-30 13F/A-1 ACADIA PHARMACEUTICALS COM 004225108 0 -47,588 -100.00 0 -100.00
2025-08-14 2025-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 0 -47,588 0
2025-08-27 2025-03-31 13F/A-1 ACADIA PHARMACEUTICALS COM 004225108 47,588 -137,725 -74.32 790 -76.76 0.0010
2025-05-15 2025-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 47,588 -137,725 790 0.0010
2025-02-14 2024-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 185,313 -387,577 -67.65 3,400 -61.41 0.0034
2024-11-14 2024-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 572,890 -275,551 -32.48 8,811 -36.09 0.0138
2024-08-14 2024-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 848,441 -160,542 -15.91 13,787 -26.10 0.0228
2024-05-15 2024-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 1,008,983 731,931 264.19 18,656 115.08 0.0321
2024-02-14 2023-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 277,052 118,040 74.23 8,674 161.82 0.0164
2023-11-14 2023-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 159,012 159,012 3,314 0.0082
2023-08-14 2023-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 0 -218,530 -100.00 0 -100.00
2023-05-15 2023-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 218,530 218,530 4,113 0.0168
2023-02-14 2022-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 0 -475,921 -100.00 0 -100.00
2022-11-14 2022-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 475,921 -18,781 -3.80 7,786 11.71 0.0393
2022-08-15 2022-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 494,702 295,079 147.82 6,970 44.16 0.0388
2022-05-16 2022-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 199,623 169,132 554.69 4,835 579.07 0.0207
2022-02-14 2021-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 30,491 -85,059 -73.61 712 -62.90 0.0019
2021-11-15 2021-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 115,550 115,550 1,919 0.0055
2021-05-17 2021-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 0 -32,616 -100.00 0 -100.00
2021-02-16 2020-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 32,616 -177,057 -84.44 1,744 -79.84 0.0130
2020-11-16 2020-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 209,673 143,534 217.02 8,649 169.78 0.1166
2020-08-14 2020-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 66,139 -13,197 -16.63 3,206 -4.36 0.0519
2020-05-15 2020-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 79,336 -152,621 -65.80 3,352 -66.22 0.0857
2020-02-14 2019-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 231,957 155,002 201.42 9,923 258.23 0.0590
2019-11-14 2019-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 76,955 76,955 2,770 0.0247
2019-05-15 2019-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 0 -27,541 -100.00 0 -100.00
2019-02-14 2018-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 27,541 -22,823 -45.32 445 -57.46 0.0052
2018-11-14 2018-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 50,364 50,364 1,046 0.0125
2018-08-14 2018-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 0 -67,965 -100.00 0 -100.00
2018-05-15 2018-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 67,965 -7,648 -10.11 1,527 -32.94 0.0242
2018-02-14 2017-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 75,613 42,357 127.37 2,277 81.72 0.0397
2017-11-14 2017-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 33,256 33,256 1,253 0.0241
2017-08-14 2017-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 0 -65,586 -100.00 0 -100.00
2017-05-15 2017-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 65,586 65,586 2,255 0.0622
2016-11-14 2016-09-30 13F ACADIA PHARMACEUTICALS COM 004225108 0 -73,600 -100.00 0 -100.00
2016-08-15 2016-06-30 13F ACADIA PHARMACEUTICALS COM 004225108 73,600 73,600 0.00 2,389 0.1491
2016-05-16 2016-03-31 13F ACADIA PHARMACEUTICALS COM 004225108 0 -10,300 -100.00 0 -100.00
2016-02-16 2015-12-31 13F ACADIA PHARMACEUTICALS COM 004225108 10,300 10,300 367 0.0402
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2025-08-27 2025-06-30 13F/A ACADIA PHARMACEUTICALS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F ACADIA PHARMACEUTICALS COM Put 0 0 n/a n/a n/a
2025-08-27 2025-03-31 13F/A ACADIA PHARMACEUTICALS COM Put 16,500 274 n/a n/a n/a
2025-05-15 2025-03-31 13F ACADIA PHARMACEUTICALS COM Put 16,500 274 n/a n/a n/a
2024-08-14 2024-06-30 13F ACADIA PHARMACEUTICALS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-05-15 2024-03-31 13F ACADIA PHARMACEUTICALS COM Put 20,200 373 n/a n/a n/a
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.