Catalyst Pharmaceuticals, Inc.
Catalyst Pharmaceuticals, Inc. (CPRX) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · CPRX · as of Sep 30, 2025
Ownership Breakdown
367
Institutional Holders
▼ 2 vs Q2
$2.04B
Total Inst. Value
▼ $167.12M vs Q2
122.38M
Shares Outstanding
freeFloat 94.45%
103.33M
13F Shares Held
▲ 1.82M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
CPRX largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. pharmaceutical preparations | 18.22M | 14.91% | 14.91% | $358.86B | Nov 12, 2025 | ▼ 684.4K |
VANGUARD GROUP INC pharmaceutical preparations | 8.71M | 7.13% | 7.13% | $171.66B | Nov 7, 2025 | ▼ 52.3K |
STATE STREET CORP pharmaceutical preparations | 6.41M | 5.24% | 5.24% | $126.19B | Nov 14, 2025 | ▲ 927.0K |
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) pharmaceutical preparations | 4.97M | 4.07% | 4.07% | $98.00B | Nov 14, 2025 | ▲ 2.10M |
RENAISSANCE TECHNOLOGIES LLC pharmaceutical preparations | 3.54M | 2.90% | 2.90% | $69.83B | Nov 13, 2025 | ▲ 293.3K |
FUNDSMITH LLP pharmaceutical preparations | 3.36M | 2.75% | 2.75% | $66.27B | Nov 14, 2025 | ▲ 654.7K |
GEODE CAPITAL MANAGEMENT, LLC pharmaceutical preparations | 2.89M | 2.37% | 2.37% | $56.95B | Nov 12, 2025 | ▲ 23.6K |
AMERICAN CENTURY COMPANIES INC pharmaceutical preparations | 2.53M | 2.07% | 2.07% | $49.81B | Nov 12, 2025 | ▲ 770.2K |
DIMENSIONAL FUND ADVISORS LP pharmaceutical preparations | 2.46M | 2.01% | 2.01% | $48.42B | Nov 12, 2025 | ▲ 550.6K |
BANK OF AMERICA CORP /DE/ pharmaceutical preparations | 2.29M | 1.88% | 1.88% | $45.14B | Feb 3, 2026 | ▼ 74.3K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
28
Increased
+8.70M shares0
New Positions
first time holders20
Decreased
−5.49M shares0
Sold Out
fully exitedNet shares change (top 50)
+3.21M
+8.70M / −5.49M
Net new holders
+8
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
CPRX insider trading · insider activity
Source: SEC Form 4
1
Buy transactions
1
Sell transactions
1.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Andrews William T. Chief Medical Officer | Jun 3, 2026 | Tax Withhold | 743 | — | — | 2.3K | Form 4 ↗ |
Russo Gregg Chief HR Officer | Feb 17, 2026 | Tax Withhold | 211 | — | — | 476 | Form 4 ↗ |
Kalb Michael Wayne Executive Vice President & CFO | Jan 5, 2026 | Tax Withhold | 2,080 | — | — | 13.7K | Form 4 ↗ |
Daly Richard J President and CEO | Jan 5, 2026 | Tax Withhold | 10,577 | — | — | 271.3K | Form 4 ↗ |
Elsbernd Brian Chief Compliance/Legal Officer | Dec 29, 2025 | Tax Withhold | 2,623 | — | — | 242.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Catalyst Pharmaceuticals, Inc. (CPRX) is primarily owned by institutional investors, who hold approximately 84.4% of total shares outstanding. Company insiders own approximately 5.55%, while retail and public investors account for the remaining 10.02%.
The largest institutional shareholder of Catalyst Pharmaceuticals, Inc. is BLACKROCK, INC., holding approximately 18.22 million shares — equal to 14.91% of outstanding shares — as of September 30, 2025.
A total of 367 institutional investors currently hold CPRX stock, with a combined institutional value of approximately $2.04 billion as of the most recent 13F filing period.
Frequently asked questions
CPRX ownershipCatalyst Pharmaceuticals, Inc. (CPRX) is primarily owned by institutional investors, who hold approximately 84.4% of shares. The largest shareholder is BLACKROCK, INC. with a 14.91% stake. Company insiders hold 5.55%. Data sourced from SEC Form 13F as of September 30, 2025.