Catalyst Pharmaceuticals, Inc.
US ˙ NasdaqCM ˙ US14888U1016

SecurityCPRX / Catalyst Pharmaceuticals, Inc.
InstitutionHancock Whitney Corp
Latest Disclosed Ownership25,929 shares
Latest Disclosed Value $ 729,383
Hancock Whitney Corp reports 21.30% decrease in ownership of CPRX / Catalyst Pharmaceuticals, Inc.

On May 15, 2026 - Hancock Whitney Corp filed a 13F-HR form disclosing ownership of 25,929 shares of Catalyst Pharmaceuticals, Inc. (US:CPRX) valued at $642,002 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 32,948 shares of Catalyst Pharmaceuticals, Inc.. This represents a change in shares of -21.30% during the quarter. The current value of the position is $811,059 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.

Upgrade to unlock premium data and export to Excel .

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 CATALYST PHARMACEUTICALS COM 14888U101 25,929 -7,019 -21.30 729 -5.20 0.0127
2026-02-17 2025-12-31 13F CATALYST PHARMA COM 14888U101 32,948 292 0.89 769 19.60 0.0139
2025-11-17 2025-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 32,656 -5,629 -14.70 643 -22.53 0.0117
2025-08-14 2025-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 38,285 -562 -1.45 831 -11.89 0.0159
2025-05-15 2025-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 38,847 525 1.37 942 17.90 0.0307
2025-02-14 2024-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 38,322 -606 -1.56 800 3.36 0.0253
2024-11-13 2024-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 38,928 -1,928 -4.72 774 22.31 0.0249
2024-08-13 2024-06-30 13F CATALYST PHARMACEUTICALS COMMON STOCK 14888U101 40,856 88 0.22 633 -2.62 0.0215
2024-05-16 2024-03-31 13F CATALYST PHARMACEUTICALS COMMON STOCK 14888U101 40,768 12,361 43.51 650 36.06 0.0224
2024-02-14 2023-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 28,407 -470 -1.63 478 41.54 0.0177
2023-11-13 2023-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 28,877 -65 -0.22 338 -13.14 0.0139
2023-11-13 2023-06-30 13F/A-1 CATALYST PHARMACEUTICALS COM 14888U101 28,942 14,227 96.68 388 59.02 0.0153
2023-08-10 2023-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 28,942 14,227 0 0.0153
2023-11-13 2023-03-31 13F/A-2 CATALYST PHARMACEUTICALS COM 14888U101 14,715 -103 -0.70 244 -11.27 0.0098
2023-05-16 2023-03-31 13F/A-1 CATALYST PHARMACEUTICALS COM 14888U101 14,715 -103 0 0.0052
2023-05-15 2023-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 14,818 0 0 0.0057
2023-11-13 2022-12-31 13F/A-1 CATALYST PHARMACEUTICALS COM 14888U101 14,818 14,818 275 0.0106
2023-02-03 2022-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 14,818 14,818 0 0.0106
2021-11-04 2021-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 0 -238,281 -100.00 0 -100.00
2021-08-09 2021-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 238,281 -208 -0.09 1,370 24.66 0.0437
2021-05-14 2021-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 238,489 -803 -0.34 1,099 37.55 0.0373
2021-02-09 2020-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 239,292 -53,928 -18.39 799 -8.27 0.0267
2020-11-05 2020-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 293,220 -24,690 -7.77 871 -40.71 0.0322
2020-07-30 2020-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 317,910 317,910 1,469 0.0563
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.