촉매 제약, Inc.
US ˙ NasdaqCM ˙ US14888U1016

SecurityCPRX / Catalyst Pharmaceuticals, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership200,585 shares
Latest Disclosed Value $ 4,352,694
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 5.27% increase in ownership of CPRX / Catalyst Pharmaceuticals, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 200,585 shares of Catalyst Pharmaceuticals, Inc. (US:CPRX) valued at $4,352,694 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 190,540 shares of Catalyst Pharmaceuticals, Inc.. This represents a change in shares of 5.27% during the quarter. The current value of the position is $6,272,293 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)
2025-08-26 2025-06-30 NP Catalyst Pharmaceuticals EC US14888U1016 200,585 10,045 5.27 4,353 -5.80 0.0977
2025-05-28 2025-03-31 NP Catalyst Pharmaceuticals EC US14888U1016 190,540 2,023 1.07 4,621 17.44 0.1108
2025-02-25 2024-12-31 NP Catalyst Pharmaceuticals EC US14888U1016 188,517 -30,907 -14.09 3,934 -9.81 0.0859
2024-11-26 2024-09-30 NP Catalyst Pharmaceuticals EC US14888U1016 219,424 8,633 4.10 4,362 33.60 0.0825
2024-08-26 2024-06-30 NP Catalyst Pharmaceuticals EC US14888U1016 210,791 15,521 7.95 3,265 4.92 0.0665
2024-05-28 2024-03-31 NP Catalyst Pharmaceuticals EC US14888U1016 195,270 13,657 7.52 3,113 1.97 0.0649
2024-02-26 2023-12-31 NP Catalyst Pharmaceuticals EC US14888U1016 181,613 11,314 6.64 3,053 53.37 0.0652
2023-11-28 2023-09-30 NP Catalyst Pharmaceuticals EC US14888U1016 170,299 4,395 2.65 1,991 -10.72 0.0519
2023-08-25 2023-06-30 NP Catalyst Pharmaceuticals EC US14888U1016 165,904 12,325 8.03 2,230 -12.45 0.0529
2023-05-26 2023-03-31 NP Catalyst Pharmaceuticals EC US14888U1016 153,579 2,712 1.80 2,546 -9.27 0.0678
2023-02-24 2022-12-31 NP Catalyst Pharmaceuticals EC US14888U1016 150,867 285 0.19 2,806 45.31 0.0772
2022-11-25 2022-09-30 NP Catalyst Pharmaceuticals EC US14888U1016 150,582 0 0.00 1,932 83.03 0.0553
2022-08-25 2022-06-30 NP Catalyst Pharmaceuticals EC US14888U1016 150,582 0 0.00 1,056 -15.46 0.0291
2022-05-26 2022-03-31 NP Catalyst Pharmaceuticals EC US14888U1016 150,582 0 0.00 1,248 22.47 0.0291
2022-02-25 2021-12-31 NP Catalyst Pharmaceuticals EC US14888U1016 150,582 0 0.00 1,019 27.69 0.0221
2021-11-24 2021-09-30 NP Catalyst Pharmaceuticals EC US14888U1016 150,582 0 0.00 798 -7.75 0.0176
2021-08-26 2021-06-30 NP Catalyst Pharmaceuticals EC US14888U1016 150,582 0 0.00 866 24.64 0.0186
2021-05-27 2021-03-31 NP Catalyst Pharmaceuticals EC US14888U1016 150,582 -10,894 -6.75 694 28.76 0.0157
2021-02-25 2020-12-31 NP Catalyst Pharmaceuticals EC US14888U1016 161,476 0 0.00 539 12.53 0.0138
2020-11-25 2020-09-30 NP Catalyst Pharmaceuticals EC US14888U1016 161,476 0 0.00 480 -35.79 0.0154
2020-08-27 2020-06-30 NP Catalyst Pharmaceuticals EC US14888U1016 161,476 4,881 3.12 746 23.92 0.0244
2020-06-01 2020-03-31 NP Catalyst Pharmaceuticals EC US14888U1016 156,595 6,740 4.50 603 7.31 0.0246
2020-02-27 2019-12-31 NP Catalyst Pharmaceuticals EC 14888U101 149,855 -12,788 -7.86 562 -34.99 0.0169
2019-11-27 2019-09-30 NP Catalyst Pharmaceuticals EC US14888U1016 162,643 162,643 864 0.0285
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.