Catalyst Pharmaceuticals, Inc.
US ˙ NASDAQCM ˙ US14888U1016 ˙ Medical Devices
DIESES SYMBOL IST NICHT MEHR AKTIV

SecurityCPRX / Catalyst Pharmaceuticals, Inc.
InstitutionVTMSX - Vanguard Tax-Managed Small-Cap Fund Admiral Shares
Latest Disclosed Ownership746,249 shares
Latest Disclosed Value $ 18,477,125
VTMSX - Vanguard Tax-Managed Small-Cap Fund Admiral Shares ownership in CPRX / Catalyst Pharmaceuticals, Inc.

On May 28, 2026 - VTMSX - Vanguard Tax-Managed Small-Cap Fund Admiral Shares filed a NPORT-P form disclosing ownership of 746,249 shares of Catalyst Pharmaceuticals, Inc. (US:CPRX) valued at $18,477,125 USD as of March 31, 2026. The entity filed a previous NPORT-P on February 26, 2026 disclosing 746,249 shares of Catalyst Pharmaceuticals, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $23,499,381 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)
2026-05-28 2026-03-31 NP CATALYST PHARMAC EC US14888U1016 746,249 0 0.00 18,477 6.09 0.1915
2026-02-26 2025-12-31 NP CATALYST PHARMAC EC US14888U1016 746,249 0 0.00 17,417 18.47 0.1849
2025-11-25 2025-09-30 NP CATALYST PHARMAC EC US14888U1016 746,249 0 0.00 14,701 -9.21 0.1566
2025-08-27 2025-06-30 NP CATALYST PHARMAC EC US14888U1016 746,249 -17,556 -2.30 16,194 -12.57 0.1855
2025-05-28 2025-03-31 NP CATALYST PHARMAC EC US14888U1016 763,805 -18,693 -2.39 18,522 13.42 0.2168
2025-02-28 2024-12-31 NP CATALYST PHARMAC EC US14888U1016 782,498 -9,792 -1.24 16,331 3.68 0.1720
2024-11-26 2024-09-30 NP CATALYST PHARMAC EC US14888U1016 792,290 -70,145 -8.13 15,751 17.90 0.1633
2024-08-27 2024-06-30 NP CATALYST PHARMAC EC US14888U1016 862,435 0 0.00 13,359 -2.82 0.1521
2024-05-29 2024-03-31 NP CATALYST PHARMAC EC US14888U1016 862,435 79,511 10.16 13,747 4.46 0.1508
2024-02-29 2023-12-31 NP CATALYST PHARMAC EC US14888U1016 782,924 -24,609 -3.05 13,161 39.41 0.1466
2023-11-28 2023-09-30 NP CATALYST PHARMAC EC US14888U1016 807,533 -6,700 -0.82 9,440 -13.73 0.1201
2023-08-28 2023-06-30 NP CATALYST PHARMAC EC US14888U1016 814,233 -33,400 -3.94 10,943 -22.13 0.1313
2023-05-26 2023-03-31 NP CATALYST PHARMAC EC US14888U1016 847,633 33,533 4.12 14,054 -7.19 0.1735
2023-03-01 2022-12-31 NP CATALYST PHARMAC EC US14888U1016 814,100 0 0.00 15,142 44.98 0.1916
2022-11-29 2022-09-30 NP CATALYST PHARMAC EC US14888U1016 814,100 814,100 10,445 0.1427
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.