Catalyst Pharmaceuticals, Inc.
US ˙ NasdaqCM ˙ US14888U1016

SecurityCPRX / Catalyst Pharmaceuticals, Inc.
InstitutionAmalgamated Bank
Latest Disclosed Ownership33,272 shares
Latest Disclosed Value $ 824
Amalgamated Bank reports 0.53% decrease in ownership of CPRX / Catalyst Pharmaceuticals, Inc.

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 33,272 shares of Catalyst Pharmaceuticals, Inc. (US:CPRX) valued at $823,815 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 33,449 shares of Catalyst Pharmaceuticals, Inc.. The current value of the position is $1,040,748 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 33,272 -177 -0.53 1 0.0063
2026-02-05 2025-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 33,449 -300 -0.89 1 0.0056
2025-10-29 2025-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 33,749 1,130 3.46 1 0.0048
2025-08-04 2025-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 32,619 654 2.05 1 0.0055
2025-04-25 2025-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 31,965 -885 -2.69 1 0.0066
2025-02-04 2024-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 32,850 0 0.00 1 0.0056
2024-10-30 2024-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 32,850 -1,406 -4.10 1 0.0054
2024-08-12 2024-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 34,256 -1,088 -3.08 1 0.0045
2024-04-23 2024-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 35,344 -8,105 -18.65 1 0.0048
2024-02-06 2023-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 43,449 -879 -1.98 1 0.0058
2023-11-08 2023-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 44,328 0 0.00 1 0.0044
2023-08-11 2023-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 44,328 448 1.02 1 0.0048
2023-05-02 2023-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 43,880 -3,256 -6.91 1 0.0062
2023-02-10 2022-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 47,136 1,023 2.22 1 -100.00 0.0078
2022-11-09 2022-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 46,113 30,960 204.32 592 458.49 0.0057
2022-08-15 2022-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 15,153 3,463 29.62 106 9.28 0.0010
2022-08-25 2022-03-31 13F/A-1 CATALYST PHARMACEUTICALS COM 14888U101 11,690 -953 -7.54 97 12.79 0.0008
2022-06-30 2022-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 11,690 -953 97 0.0008
2022-02-15 2021-12-31 13F/A-1 CATALYST PHARMACEUTICALS COM 14888U101 12,643 -402 -3.08 86 24.64 0.0006
2022-02-15 2021-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 12,643 -402 86 0.0006
2021-10-29 2021-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 13,045 -593 -4.35 69 -11.54 0.0006
2021-08-16 2021-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 13,638 -1,463 -9.69 78 11.43 0.0006
2021-05-13 2021-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 15,101 0 0.00 70 40.00 0.0026
2021-02-12 2020-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 15,101 90 0.60 50 11.11 0.0019
2020-10-30 2020-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 15,011 -339 -2.21 45 -36.62 0.0020
2020-08-10 2020-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 15,350 -1,753 -10.25 71 7.58 0.0033
2020-05-13 2020-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 17,103 68 0.40 66 3.13 0.0016
2020-02-13 2019-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 17,035 0 0.00 64 -28.89 0.0012
2019-11-13 2019-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 17,035 -113 -0.66 90 36.36 0.0019
2019-08-14 2019-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 17,148 2,059 13.65 66 -14.29 0.0015
2019-05-15 2019-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 15,089 499 3.42 77 175.00 0.0019
2019-02-15 2018-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 14,590 14,590 28 0.0008
2018-11-14 2018-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 0 -14,892 -100.00 0 -100.00
2018-07-18 2018-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 14,892 3,390 29.47 46 70.37 0.0011
2018-05-22 2018-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 11,502 11,502 27 0.0007
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.