Catalyst Pharmaceuticals, Inc.
US ˙ NasdaqCM ˙ US14888U1016

SecurityCPRX / Catalyst Pharmaceuticals, Inc.
InstitutionAlps Advisors Inc
Latest Disclosed Ownership21,317 shares
Latest Disclosed Value $ 527,809
Alps Advisors Inc reports 7.45% decrease in ownership of CPRX / Catalyst Pharmaceuticals, Inc.

On May 8, 2026 - Alps Advisors Inc filed a 13F-HR form disclosing ownership of 21,317 shares of Catalyst Pharmaceuticals, Inc. (US:CPRX) valued at $527,809 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 23,032 shares of Catalyst Pharmaceuticals, Inc.. This represents a change in shares of -7.45% during the quarter. The current value of the position is $666,796 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)
2026-05-08 2026-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 21,317 -1,715 -7.45 528 -1.86 0.0023
2026-02-12 2025-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 23,032 200 0.88 538 19.60 0.0031
2025-11-05 2025-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 22,832 6,154 36.90 450 24.38 0.0025
2025-08-11 2025-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 16,678 202 1.23 362 -9.52 0.0021
2025-04-30 2025-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 16,476 -633 -3.70 400 11.76 0.0023
2025-02-13 2024-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 17,109 -400 -2.28 357 2.59 0.0023
2024-11-12 2024-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 17,509 -3,960 -18.45 348 4.82 0.0023
2024-08-13 2024-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 21,469 -83,246 -79.50 333 -80.11 0.0023
2024-05-14 2024-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 104,715 32,284 44.57 1,669 37.14 0.0118
2024-02-14 2023-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 72,431 -6,279 -7.98 1,218 32.28 0.0096
2023-11-14 2023-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 78,710 -20,884 -20.97 920 -31.24 0.0076
2023-08-14 2023-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 99,594 9,501 10.55 1,339 -10.38 0.0116
2023-05-10 2023-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 90,093 -1,013 -1.11 1,494 -11.87 0.0132
2023-02-14 2022-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 91,106 14,291 18.60 1,695 71.81 0.0151
2022-11-14 2022-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 76,815 -29,943 -28.05 986 31.82 0.0093
2022-08-15 2022-06-30 13F/A-1 CATALYST PHARMACEUTICALS COM 14888U101 106,758 -45,483 -29.88 748 -40.73 0.0073
2022-08-11 2022-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 106,758 -45,483 748 0.0072
2022-05-16 2022-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 152,241 -42,253 -21.72 1,262 -4.18 0.0137
2022-02-09 2021-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 194,494 -5,906 -2.95 1,317 24.01 0.0148
2021-11-15 2021-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 200,400 -17,478 -8.02 1,062 -15.24 0.0102
2021-08-11 2021-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 217,878 -51,382 -19.08 1,253 0.97 0.0111
2021-05-07 2021-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 269,260 4,258 1.61 1,241 40.23 0.0121
2021-02-03 2020-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 265,002 52,699 24.82 885 40.25 0.0100
2020-11-05 2020-09-30 13F/A-1 CATALYST PHARMACEUTICALS COM 14888U101 212,303 71,223 50.48 631 -3.22 0.0093
2020-11-04 2020-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 212,303 71,223 631 8,087.0210
2020-08-05 2020-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 141,080 -46,268 -24.70 652 -9.57 0.0087
2020-05-06 2020-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 187,348 -21,842 -10.44 721 -8.04 0.0112
2020-02-07 2019-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 209,190 209,190 784 0.0061
2019-08-07 2019-06-30 13F CATALYST PHARMAC COMMON STOCK 14888U101 0 -248,154 -100.00 0 -100.00
2019-05-01 2019-03-31 13F CATALYST PHARMAC COMMON STOCK 14888U101 248,154 10,715 4.51 1,266 177.63 0.0090
2019-02-04 2018-12-31 13F CATALYST PHARMAC COMMON STOCK 14888U101 237,439 55,884 30.78 456 -33.53 0.0035
2018-10-25 2018-09-30 13F CATALYST PHARMAC COMMON STOCK 14888U101 181,555 32,661 21.94 686 47.53 0.0045
2018-08-02 2018-06-30 13F/A-2 Catalyst Pharmaceuticals COMMON STOCK 14888U101 148,894 11,453 8.33 465 41.77 0.0030
2018-07-31 2018-06-30 13F/A-1 Catalyst Pharmaceuticals COMMON STOCK 14888U101 111,179 -37,715 435 0.0028
2018-07-25 2018-06-30 13F Catalyst Pharmaceuticals COMMON STOCK 14888U101 111,179 -26,262 435
2018-05-01 2018-03-31 13F Catalyst Pharmaceuticals COMMON STOCK 14888U101 137,441 26,262 23.62 328 -24.60 0.0026
2018-02-20 2017-12-31 13F/A-1 Catalyst Pharmaceuticals COMMON STOCK 14888U101 111,179 111,179 435 0.0030
2018-02-05 2017-12-31 13F Catalyst Pharmaceuticals COMMON STOCK 14888U101 111,179 435 0.0030
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.