SEC ownership of CATALYST PHARMACEUTICALS, INC.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001369568.

Comparable stake leader

BlackRock, Inc.

Disclosed value leader

BlackRock, Inc.

Comparable rows

50/50

Latest evidence

31 Mar 2026

Top shareholders Insider holders Latest transactions
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
Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
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 Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001369568
Issuer location
Coral Gables, FL

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
13F 13D/G
14%
from 13D/G
$464,857,361
18,774,530 shares
 — 31 Mar 2026
STATE STREET CORP
13F 13D/G
Company · STATE STREET CORPORATION
13F 13D/G
5.2%
from 13D/G
$169,929,366
6,863,060 shares
 — 31 Mar 2026
James E. Flynn
13D/G
Deerfield Mgmt, L.P.
13D/G
2.6%
$74,033,050
3,133,011 shares
 $0 31 Dec 2024
VANGUARD CAPITAL MANAGEMENT LLC
13F
Company
13F
4.2%
$126,837,210
5,122,666 shares
 — 31 Mar 2026
AMERICAN CENTURY COMPANIES INC
13F
Company
13F
3.4%
$102,467,180
4,138,416 shares
 — 31 Mar 2026
DEERFIELD MANAGEMENT COMPANY, L.P.
13F
Company
13F
3.2%
$97,643,536
3,943,600 shares
 — 31 Mar 2026
DIMENSIONAL FUND ADVISORS LP
13F
Company
13F
2.8%
$84,907,655
3,429,615 shares
 — 31 Mar 2026
BANK OF AMERICA CORP /DE/
13F
Company
13F
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
03 Jun 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Patrick J. McEnany Director, Chairman of Board of Directors $105,777,977 Mixed 29 Dec 2025
Steve Miller Chief Op. & Scientific Officer $29,217,712 -$2,332,200 -7.4% Mixed 29 Dec 2025
Donald A. Denkhaus Director $12,120,589 Mixed 29 Dec 2025
Richard J. Daly President and CEO, Director $11,337,222 -$473,641 -4% Mixed 05 Jan 2026
David S. Tierney Director $9,508,911 -$525,200 -5.2% Mixed 29 Dec 2025
Brian Elsbernd Chief Compliance/Legal Officer $8,121,002 -$688,200 -7.8% Mixed 29 Dec 2025
Gary Ingenito Chief Med. & Reg. Officer $3,901,700 Mixed 13 May 2025
Preethi Sundaram Chief Strategy Officer $2,812,514 Mixed 29 Dec 2025
Jeffrey del Carmen Chief Commercial Officer $2,423,667 -$256,244 -9.6% Mixed 29 Dec 2025
Michael W. Kalb Executive Vice President & CFO $2,226,495 Mixed 05 Jan 2026
Charles B. O'Keeffe Director $2,107,267 Mixed 14 Feb 2025
Alicia Grande VP, Treasurer and CFO $1,404,569 Mixed 27 Dec 2023
Tamar Thompson Director $475,599 Mixed 08 Dec 2025
Molly Harper Director $372,235 -$621,920 -63% Mixed 29 Dec 2025
Philip H. Coelho Director $231,522 Mixed 04 May 2023
William T. Andrews Chief Medical Officer $57,170 Mixed 03 Jun 2026
Gregg Russo Chief HR Officer $11,700 Mixed 17 Feb 2026
Daniel J. Curran Director $0 Mixed 20 Nov 2025

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
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
Richard J. Daly CPRX Common Stock, par value $0.001 per share Options Exercise 17.6% 42,105 281,843 05 Jan 2026 Direct
Richard J. Daly CPRX Restricted Stock Units Options Exercise -1.58% -42,105 2,618,539 05 Jan 2026 Direct
Donald A. Denkhaus CPRX Common Stock, par value $0.001 per share Options Exercise 0.27% 1,334 498,773 29 Dec 2025 Direct
Donald A. Denkhaus CPRX Restricted Stock Units Options Exercise -0.74% -1,334 178,163 29 Dec 2025 Direct
Brian Elsbernd CPRX Common Stock, par value $0.001 per share Tax liability -1.07% -2,623 242,501 29 Dec 2025 Direct
Brian Elsbernd CPRX Common Stock, par value $0.001 per share Options Exercise 2.8% 6,667 245,124 29 Dec 2025 Direct
Brian Elsbernd CPRX Restricted Stock Units Options Exercise -0.69% -6,667 956,142 29 Dec 2025 Direct
David S. Tierney CPRX Common Stock, par value $0.001 per share Options Exercise 0.35% 1,334 383,314 29 Dec 2025 Direct
David S. Tierney CPRX Restricted Stock Units Options Exercise -0.74% -1,334 178,163 29 Dec 2025 Direct
Preethi Sundaram CPRX Common Stock, par value $0.001 per share Tax liability -4.14% -2,369 54,804 29 Dec 2025 Direct
Preethi Sundaram CPRX Common Stock, par value $0.001 per share Options Exercise 13.2% 6,667 57,173 29 Dec 2025 Direct
Preethi Sundaram CPRX Restricted Stock Units Options Exercise -0.83% -6,667 798,437 29 Dec 2025 Direct
Steve Miller CPRX Common stock, par value $0.001 per share Options Exercise 1.3% 14,000 1,093,803 29 Dec 2025 Direct
Steve Miller CPRX Restricted Stock Units Options Exercise -0.94% -14,000 1,471,649 29 Dec 2025 Direct
Molly Harper CPRX Common Stock, par value $0.001 per share Options Exercise 56.5% 1,334 3,694 29 Dec 2025 Direct
Molly Harper CPRX Restricted Stock Units Options Exercise -1.04% -1,334 127,163 29 Dec 2025 Direct
Patrick J. McEnany CPRX Common Stock, par value $0.001 per share Tax liability -0.16% -6,786 4,171,559 29 Dec 2025 Direct
Patrick J. McEnany CPRX Common Stock, par value $0.001 per share Options Exercise 0.63% 26,334 4,178,345 29 Dec 2025 Direct
Patrick J. McEnany CPRX Restricted Stock Units Options Exercise -1.4% -26,334 1,851,948 29 Dec 2025 Direct
Richard J. Daly CPRX Common Stock, par value $0.001 per share Tax liability -0.22% -524 239,738 29 Dec 2025 Direct
Richard J. Daly CPRX Common Stock, par value $0.001 per share Options Exercise 0.56% 1,334 240,262 29 Dec 2025 Direct
Richard J. Daly CPRX Restricted Stock Units Options Exercise -0.05% -1,334 2,660,644 29 Dec 2025 Direct
Jeffrey del Carmen CPRX Common Stock, par value $0.001 per share Tax liability -21.1% -3,839 14,337 29 Dec 2025 Direct
Jeffrey del Carmen CPRX Common Stock, par value $0.001 per share Options Exercise 91.2% 8,667 18,176 29 Dec 2025 Direct
Jeffrey del Carmen CPRX Restricted Stock Units Options Exercise -0.83% -8,667 1,036,846 29 Dec 2025 Direct
Molly Harper CPRX Common stock, par value $0.001 per share Sale -91.9% $621,920 $23.25 -26,746 2,360 12 Dec 2025 Direct
Molly Harper CPRX Common stock, par value $0.001 per share Options Exercise 219.6% 20,000 29,106 12 Dec 2025 Direct
Molly Harper CPRX Options to purchase common stock Options Exercise -13.5% -20,000 128,497 12 Dec 2025 Direct
Brian Elsbernd CPRX Common Stock, par value $0.001 per share Tax liability -1.15% -2,780 238,457 08 Dec 2025 Direct
Brian Elsbernd CPRX Common Stock, par value $0.001 per share Options Exercise 3.02% 7,067 241,237 08 Dec 2025 Direct
Brian Elsbernd CPRX Restricted Stock Units Options Exercise -0.73% -7,067 962,809 08 Dec 2025 Direct
Steve Miller CPRX Common stock, par value $0.001 per share Options Exercise 1.11% 11,873 1,079,803 08 Dec 2025 Direct
Steve Miller CPRX Restricted Stock Units Options Exercise -0.79% -11,873 1,485,649 08 Dec 2025 Direct
David S. Tierney CPRX Common Stock, par value $0.001 per share Options Exercise 0.37% 1,413 381,980 08 Dec 2025 Direct
David S. Tierney CPRX Restricted Stock Units Options Exercise -0.78% -1,413 179,497 08 Dec 2025 Direct
Tamar Thompson CPRX Common Stock, par value $0.001 per share Options Exercise 59.9% 1,413 3,773 08 Dec 2025 Direct
Tamar Thompson CPRX Restricted Stock Units Options Exercise -1.17% -1,413 119,663 08 Dec 2025 Direct
Jeffrey del Carmen CPRX Common Stock, par value $0.001 per share Tax liability -20.8% -2,492 9,509 08 Dec 2025 Direct
Jeffrey del Carmen CPRX Common Stock, par value $0.001 per share Options Exercise 202.9% 8,039 12,001 08 Dec 2025 Direct
Jeffrey del Carmen CPRX Restricted Stock Units Options Exercise -0.76% -8,039 1,045,513 08 Dec 2025 Direct
Patrick J. McEnany CPRX Common Stock, par value $0.001 per share Options Exercise 0.09% 3,534 4,152,011 08 Dec 2025 Direct
* marks a reported price that did not pass the local price check.
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