Catalyst Pharmaceuticals, Inc.
US ˙ NasdaqCM ˙ US14888U1016

SecurityCPRX / Catalyst Pharmaceuticals, Inc.
InstitutionInvesco Ltd.
Latest Disclosed Ownership752,839 shares
Latest Disclosed Value $ 18,640,293
Invesco Ltd. reports 41.80% decrease in ownership of CPRX / Catalyst Pharmaceuticals, Inc.

On May 12, 2026 - Invesco Ltd. filed a 13F-HR form disclosing ownership of 752,839 shares of Catalyst Pharmaceuticals, Inc. (US:CPRX) valued at $18,640,294 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 19, 2026 disclosing 1,293,478 shares of Catalyst Pharmaceuticals, Inc.. This represents a change in shares of -41.80% during the quarter. The current value of the position is $23,556,332 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)
2026-05-12 2026-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 752,839 -540,639 -41.80 18,640 -38.26 0.0029
2026-02-19 2025-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 1,293,478 60,221 4.88 30,190 24.26 0.0046
2025-11-13 2025-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 1,233,257 19,557 1.61 24,295 -7.75 0.0038
2025-08-13 2025-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 1,213,700 14,073 1.17 26,337 -9.46 0.0045
2025-05-12 2025-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 1,199,627 352,776 41.66 29,091 64.60 0.0055
2025-02-13 2024-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 846,851 -92,675 -9.86 17,674 -5.38 0.0033
2024-11-12 2024-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 939,526 100,071 11.92 18,678 43.64 0.0036
2024-08-13 2024-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 839,455 -154,603 -15.55 13,003 -17.94 0.0028
2024-05-14 2024-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 994,058 74,411 8.09 15,845 2.50 0.0034
2024-02-13 2023-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 919,647 -107,954 -10.51 15,459 28.70 0.0037
2023-11-13 2023-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 1,027,601 -197,013 -16.09 12,013 -27.01 0.0032
2023-08-11 2023-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 1,224,614 89,766 7.91 16,459 -12.53 0.0043
2023-05-12 2023-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 1,134,848 -303,353 -21.09 18,816 -29.66 0.0052
2023-02-13 2022-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 1,438,201 -42,708 -2.88 26,751 40.79 0.0078
2022-11-14 2022-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 1,480,909 527,647 55.35 19,000 184.35 0.0061
2022-08-15 2022-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 953,262 479,765 101.32 6,682 70.24 0.0020
2022-05-16 2022-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 473,497 437,247 1,206.20 3,925 1,502.04 0.0010
2022-02-14 2021-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 36,250 -3,231 -8.18 245 17.22 0.0001
2021-11-15 2021-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 39,481 5,119 14.90 209 5.56 0.0001
2021-08-17 2021-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 34,362 3,257 10.47 198 38.46 0.0000
2021-05-17 2021-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 31,105 -4,515 -12.68 143 20.17 0.0000
2021-02-16 2020-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 35,620 7,304 25.79 119 41.67 0.0000
2020-11-16 2020-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 28,316 -13,594 -32.44 84 -56.70 0.0000
2020-08-14 2020-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 41,910 12,926 44.60 194 74.77 0.0001
2020-05-15 2020-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 28,984 8,311 40.20 111 44.16 0.0000
2020-02-14 2019-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 20,673 -373,673 -94.76 77 -96.32 0.0000
2019-11-14 2019-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 394,346 394,346 2,094 0.0005
2019-05-15 2019-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 0 -25,652 -100.00 0 -100.00
2019-02-14 2018-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 25,652 -946 -3.56 49 -51.49 0.0000
2018-11-14 2018-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 26,598 -1,960 -6.86 101 13.48 0.0000
2018-08-14 2018-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 28,558 28,558 89 0.0000
2016-05-16 2016-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 0 -413,770 -100.00 0 -100.00
2016-02-16 2015-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 413,770 1,017 0.25 1,014 -18.09 0.0004
2015-11-16 2015-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 412,753 411,371 29,766.35 1,238 20,533.33 0.0005
2015-08-14 2015-06-30 13F CATALYST PHARMACEUTICALS COMMON 14888U101 1,382 1,382 0.00 6 0.0000
2014-11-14 2014-09-30 13F CATALYST PHARMACEUTICAL PARTNE COMMON 14888U101 0 -67,393 -100.00 0 -100.00
2014-08-14 2014-06-30 13F CATALYST PHARMACEUTICAL PARTNE COMMON 14888U101 67,393 67,393 171 0.0001
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.