Comparable stake leader
BlackRock, Inc.
SEC ownership of CATALYST PHARMACEUTICALS, INC.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001369568.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- CPRX on Nasdaq
- Parsed ownership sources
-
13F and 13D/G
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001369568
- Issuer location
- Coral Gables, FL
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of CATALYST PHARMACEUTICALS, INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
31 Mar 2026
13F
13D/G
Lead comparable stake: 14%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 14%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
14%
STATE STREET CORP
5.2%
James E. Flynn
2.6%
VANGUARD CAPITAL MANAGEMENT LLC
4.2%
AMERICAN CENTURY COMPANIES INC
3.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
14%
from 13D/G
|
$464,857,361
18,774,530 shares
|
— | 31 Mar 2026 |
| STATE STREET CORP |
13F
13D/G
Company · STATE STREET CORPORATION
|
5.2%
from 13D/G
|
$169,929,366
6,863,060 shares
|
— | 31 Mar 2026 |
| James E. Flynn |
13D/G
Deerfield Mgmt, L.P.
|
2.6%
|
$74,033,050
3,133,011 shares
|
$0 | 31 Dec 2024 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
4.2%
|
$126,837,210
5,122,666 shares
|
— | 31 Mar 2026 |
| AMERICAN CENTURY COMPANIES INC |
13F
Company
|
3.4%
|
$102,467,180
4,138,416 shares
|
— | 31 Mar 2026 |
| DEERFIELD MANAGEMENT COMPANY, L.P. |
13F
Company
|
3.2%
|
$97,643,536
3,943,600 shares
|
— | 31 Mar 2026 |
| DIMENSIONAL FUND ADVISORS LP |
13F
Company
|
2.8%
|
$84,907,655
3,429,615 shares
|
— | 31 Mar 2026 |
| BANK OF AMERICA CORP /DE/ |
13F
Company
|
2.5%
|
$75,184,880
3,036,546 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$4,897,406.
Buys
$908,000
Insiders: 1
Sells
$5,805,406
Insiders: 6
Net
-$4,897,406
Shares: -241,699
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 40,000
Shares: 281,699
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 40,000 | 37,729 | $908,000 | $878,165 | +$29,835 |
| 9-12 | 0 | 243,970 | $0 | $4,927,241 | -$4,927,241 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-18 of 18 reporting-owner rows connected to CATALYST PHARMACEUTICALS, INC.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
18
Largest Forms 3/4/5 holder
Patrick J. McEnany
Net 12M change
-$4,897,405
Latest report
15 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Patrick J. McEnany | Director, Chairman of Board of Directors | $7,370,901 | Mixed | 15 Jul 2026 | ||
| Richard J. Daly | President and CEO, Director | $5,005,847 | -$473,641 | -8.6% | Mixed | 15 Jul 2026 |
| Gary Ingenito | Chief Med. & Reg. Officer | $3,901,700 | Mixed | 13 May 2025 | ||
| Steve Miller | Chief Op. & Scientific Officer | $3,414,900 | -$2,332,200 | -41% | Mixed | 15 Jul 2026 |
| Brian Elsbernd | Chief Legal Officer | $2,400,404 | -$688,200 | -22% | Mixed | 15 Jul 2026 |
| Charles B. O'Keeffe | Director | $2,107,267 | Mixed | 14 Feb 2025 | ||
| Jeffrey del Carmen | Chief Commercial Officer | $2,085,458 | -$256,244 | -11% | Mixed | 15 Jul 2026 |
| Michael W. Kalb | Chief Financial Officer | $1,907,553 | Mixed | 15 Jul 2026 | ||
| Preethi Sundaram | Chief Strategy Officer | $1,519,688 | Mixed | 15 Jul 2026 | ||
| Alicia Grande | VP, Treasurer and CFO | $1,404,569 | Mixed | 27 Dec 2023 | ||
| David S. Tierney | Director | $466,534 | -$525,200 | -53% | Mixed | 15 Jul 2026 |
| Tamar Thompson | Director | $394,744 | Mixed | 15 Jul 2026 | ||
| Donald A. Denkhaus | Director | $354,534 | Mixed | 15 Jul 2026 | ||
| Molly Harper | Director | $285,094 | -$621,920 | -69% | Mixed | 15 Jul 2026 |
| Philip H. Coelho | Director | $231,522 | Mixed | 04 May 2023 | ||
| William T. Andrews | Chief Medical Officer | $0 | Mixed | 15 Jul 2026 | ||
| Gregg Russo | Chief HR Officer | $0 | Mixed | 15 Jul 2026 | ||
| Daniel J. Curran | Director | $0 | Mixed | 15 Jul 2026 |
Recent insider transactions for CATALYST PHARMACEUTICALS, INC.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Brian Elsbernd | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -242,501 | 0 | 15 Jul 2026 | Direct | ||
| Brian Elsbernd | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -47,165 | 0 | 15 Jul 2026 | Direct | ||
| Brian Elsbernd | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -908,977 | 0 | 15 Jul 2026 | Direct | ||
| Daniel J. Curran | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -5,468 | 0 | 15 Jul 2026 | Direct | ||
| Daniel J. Curran | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -58,115 | 0 | 15 Jul 2026 | Direct | ||
| David S. Tierney | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -383,314 | 0 | 15 Jul 2026 | Direct | ||
| David S. Tierney | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -8,776 | 0 | 15 Jul 2026 | Direct | ||
| David S. Tierney | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -169,387 | 0 | 15 Jul 2026 | Direct | ||
| Steve Miller | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -1,093,803 | 0 | 15 Jul 2026 | Direct | ||
| Steve Miller | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -76,233 | 0 | 15 Jul 2026 | Direct | ||
| Steve Miller | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -1,395,416 | 0 | 15 Jul 2026 | Direct | ||
| Tamar Thompson | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -3,773 | 0 | 15 Jul 2026 | Direct | ||
| Tamar Thompson | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -8,776 | 0 | 15 Jul 2026 | Direct | ||
| Tamar Thompson | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -110,887 | 0 | 15 Jul 2026 | Direct | ||
| Gregg Russo | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -476 | 0 | 15 Jul 2026 | Direct | ||
| Gregg Russo | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -8,949 | 0 | 15 Jul 2026 | Direct | ||
| Gregg Russo | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -62,837 | 0 | 15 Jul 2026 | Direct | ||
| Patrick J. McEnany | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -4,171,559 | 0 | 15 Jul 2026 | Direct | ||
| Patrick J. McEnany | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -17,626 | 0 | 15 Jul 2026 | Direct | ||
| Patrick J. McEnany | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -1,834,322 | 0 | 15 Jul 2026 | Direct | ||
| Donald A. Denkhaus | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -498,773 | 0 | 15 Jul 2026 | Direct | ||
| Donald A. Denkhaus | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -8,776 | 0 | 15 Jul 2026 | Direct | ||
| Donald A. Denkhaus | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -169,387 | 0 | 15 Jul 2026 | Direct | ||
| Jeffrey del Carmen | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -14,337 | 0 | 15 Jul 2026 | Direct | ||
| Jeffrey del Carmen | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -51,502 | 0 | 15 Jul 2026 | Direct | ||
| Jeffrey del Carmen | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -985,344 | 0 | 15 Jul 2026 | Direct | ||
| Preethi Sundaram | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -54,804 | 0 | 15 Jul 2026 | Direct | ||
| Preethi Sundaram | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -50,318 | 0 | 15 Jul 2026 | Direct | ||
| Preethi Sundaram | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -748,119 | 0 | 15 Jul 2026 | Direct | ||
| Richard J. Daly | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -271,266 | 0 | 15 Jul 2026 | Direct | ||
| Richard J. Daly | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -281,612 | 0 | 15 Jul 2026 | Direct | ||
| Richard J. Daly | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -2,336,927 | 0 | 15 Jul 2026 | Direct | ||
| William T. Andrews | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -2,309 | 0 | 15 Jul 2026 | Direct | ||
| William T. Andrews | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -41,985 | 0 | 15 Jul 2026 | Direct | ||
| William T. Andrews | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -223,099 | 0 | 15 Jul 2026 | Direct | ||
| Molly Harper | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -3,694 | 0 | 15 Jul 2026 | Direct | ||
| Molly Harper | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -8,776 | 0 | 15 Jul 2026 | Direct | ||
| Molly Harper | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -118,387 | 0 | 15 Jul 2026 | Direct | ||
| Michael W. Kalb | CPRX | Common Stock, par value $0.001 per share | Disposed to Issuer | -100% | -13,665 | 0 | 15 Jul 2026 | Direct | ||
| Michael W. Kalb | CPRX | Restricted Stock Units | Disposed to Issuer | -100% | -74,905 | 0 | 15 Jul 2026 | Direct | ||
| Michael W. Kalb | CPRX | Options to purchase common stock | Disposed to Issuer | -100% | -557,998 | 0 | 15 Jul 2026 | Direct | ||
| William T. Andrews | CPRX | Common Stock, par value $0.001 per share | Tax liability | -24.3% | -743 | 2,309 | 03 Jun 2026 | Direct | ||
| William T. Andrews | CPRX | Common Stock, par value $0.001 per share | Options Exercise | 3,052 | 3,052 | 03 Jun 2026 | Direct | |||
| Gregg Russo | CPRX | Common Stock, par value $0.001 per share | Tax liability | -30.7% | -211 | 476 | 17 Feb 2026 | Direct | ||
| Gregg Russo | CPRX | Common Stock, par value $0.001 per share | Options Exercise | 687 | 687 | 17 Feb 2026 | Direct | |||
| Gregg Russo | CPRX | Restricted Stock Units | Options Exercise | -0.95% | -687 | 71,786 | 17 Feb 2026 | Direct | ||
| Michael W. Kalb | CPRX | Common Stock, par value $0.001 per share | Tax liability | -13.2% | -2,080 | 13,665 | 05 Jan 2026 | Direct | ||
| Michael W. Kalb | CPRX | Common Stock, par value $0.001 per share | Options Exercise | 83% | 7,139 | 15,745 | 05 Jan 2026 | Direct | ||
| Michael W. Kalb | CPRX | Restricted Stock Units | Options Exercise | -1.12% | -7,139 | 632,903 | 05 Jan 2026 | Direct | ||
| Richard J. Daly | CPRX | Common Stock, par value $0.001 per share | Tax liability | -3.75% | -10,577 | 271,266 | 05 Jan 2026 | Direct |
* marks a reported price that did not pass the local price check.