촉매 제약, Inc.
US ˙ NasdaqCM ˙ US14888U1016

SecurityCPRX / Catalyst Pharmaceuticals, Inc.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership16,892,951 shares
Ownership 13.90%
BlackRock, Inc. ownership in CPRX / Catalyst Pharmaceuticals, Inc.

2025-04-28 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 16,892,951 shares of Catalyst Pharmaceuticals, Inc. (US:CPRX). This represents 13.9 percent ownership of the company. In their previous filing dated 2024-11-08 , BlackRock, Inc. had reported owning 19,016,873 shares, indicating a decrease of -11.17 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2025-04-28 2025-04-28 13G/A 19,016,873 16,892,951 -11.17 13.90 -13.12
2024-11-08 2024-11-08 13G/A 19,016,873 19,016,873 0.00 16.00 0.00
2024-10-18 2024-10-18 13G/A 19,016,873 16.00
2024-01-22 2024-01-22 13G/A 15,690,326 15,821,401 0.84 14.80 -1.99
2023-01-26 2023-01-26 13G/A 15,690,326 15,690,326 0.00 15.10 0.00
2023-01-20 2023-01-20 13G/A 15,268,931 15,690,326 2.76 15.10 1.34
2022-10-07 2022-10-07 13G/A 7,684,698 15,268,931 98.69 14.90 98.67
2022-02-03 2022-02-03 13G/A 7,744,197 7,684,698 -0.77 7.50 0.00
2021-01-29 2021-01-29 13G/A 8,444,965 7,744,197 -8.30 7.50 -8.54
2021-01-29 2021-01-29 13G/A 7,744,197 7,744,197 0.00 7.50 0.00
2020-02-05 2020-02-05 13G/A 6,970,873 8,444,965 21.15 8.20 20.59
2019-02-08 2019-02-08 13G 6,970,873 6,970,873 0.00 6.80 0.00
2019-02-07 2019-02-07 13G 6,970,873 6.80

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-13 2026-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 18,774,530 147,749 0.79 464,857 6.93 0.0006
2026-02-12 2025-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 18,626,781 410,721 2.25 434,749 21.15 0.0073
2025-11-12 2025-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 18,216,060 -684,378 -3.62 358,856 -12.50 0.0063
2025-08-12 2025-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 18,900,438 96,103 0.51 410,140 -10.06 0.0078
2025-05-02 2025-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 18,804,335 -620,794 -3.20 456,005 12.48 0.0096
2025-02-07 2024-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 19,425,129 407,638 2.14 405,402 7.23 0.0082
2024-11-13 2024-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 19,017,491 322,573 1.73 378,068 30.56 0.0079
2024-08-13 2024-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 18,694,918 962,276 5.43 289,584 2.45 0.0066
2024-05-10 2024-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 17,732,642 1,910,343 12.07 282,658 6.27 0.0066
2024-02-13 2023-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 15,822,299 439,279 2.86 265,973 47.90 0.0068
2023-11-13 2023-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 15,383,020 -468,842 -2.96 179,828 -15.59 0.0052
2023-08-11 2023-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 15,851,862 491,552 3.20 213,049 -16.34 0.0059
2023-05-12 2023-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 15,360,310 -330,016 -2.10 254,674 -12.74 0.0075
2023-02-13 2022-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 15,690,326 421,395 2.76 291,840 48.97 0.0091
2022-11-14 2022-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 15,268,931 8,317,115 119.64 195,902 302.00 0.0067
2022-08-12 2022-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 6,951,816 -490,793 -6.59 48,732 -21.01 0.0016
2022-05-12 2022-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 7,442,609 -242,089 -3.15 61,696 18.59 0.0017
2022-02-10 2021-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 7,684,698 -277,835 -3.49 52,024 23.28 0.0013
2021-11-09 2021-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 7,962,533 -43,304 -0.54 42,201 -8.32 0.0012
2021-08-11 2021-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 8,005,837 -268,849 -3.25 46,033 20.67 0.0013
2021-05-07 2021-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 8,274,686 530,489 6.85 38,147 47.48 0.0011
2021-02-05 2020-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 7,744,197 274,900 3.68 25,866 16.60 0.0008
2020-11-06 2020-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 7,469,297 -167,056 -2.19 22,184 -37.12 0.0008
2020-08-14 2020-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 7,636,353 -829,197 -9.79 35,280 8.24 0.0014
2020-05-01 2020-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 8,465,550 20,585 0.24 32,593 2.92 0.0016
2020-02-13 2019-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 8,444,965 189,943 2.30 31,668 -27.75 0.0012
2019-11-08 2019-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 8,255,022 176,027 2.18 43,833 41.29 0.0018
2019-08-22 2019-06-30 13F/A-1 CATALYST PHARMACEUTICALS COM 14888U101 8,078,995 1,090,271 15.60 31,023 -12.96 0.0013
2019-08-13 2019-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 8,078,995 1,090,271 31,023
2019-05-09 2019-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 6,988,724 17,851 0.26 35,643 166.31 0.0016
2019-02-08 2018-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 6,970,873 719,093 11.50 13,384 -43.37 0.0007
2018-11-09 2018-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 6,251,780 192,153 3.17 23,633 25.01 0.0010
2018-08-09 2018-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 6,059,627 1,361,096 28.97 18,905 68.34 0.0009
2018-05-09 2018-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 4,698,531 678,950 16.89 11,230 -28.55 0.0005
2018-02-09 2017-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 4,019,581 298,044 8.01 15,717 67.58 0.0007
2017-11-14 2017-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 3,721,537 134,251 3.74 9,379 -5.27 0.0005
2017-08-10 2017-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 3,587,286 3,034,483 548.93 9,901 819.31 0.0005
2017-05-12 2017-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 552,803 552,803 1,077 0.0001
2016-08-10 2016-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 0 -3,042 -100.00 0 -100.00
2016-05-10 2016-03-31 13F CATALYST PHARMACEUTICALS COM 14888U101 3,042 1,163 61.89 3 -40.00 0.0000
2016-02-11 2015-12-31 13F CATALYST PHARMACEUTICALS COM 14888U101 1,879 0 0.00 5 -16.67 0.0000
2015-11-13 2015-09-30 13F CATALYST PHARMACEUTICALS COM 14888U101 1,879 0 0.00 6 -25.00 0.0000
2015-08-07 2015-06-30 13F CATALYST PHARMACEUTICALS COM 14888U101 1,879 1,879 8 0.0000
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.