Corcept Therapeutics Inc (CORT) Insider Ownership

Historic Ownership Trends

According to recent filings covering the 90 days ending December 12, 2025, the three most significant insider holders at Corcept Therapeutics are Chief Executive Officer Joseph K Belanoff (3.24Mn shares), Officer Sean Maduck (48.18K shares), Chief Business Officer Gary Charles Robb (25.48K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
G Leonard Jr Baker 4,355,141 15 Jun, 2021
Joseph K Belanoff Chief Executive Officer 3,240,598 02 Aug, 2024
James N Wilson 1,445,168 24 Jan, 2025
David L Mahoney 1,212,614 20 May, 2025
Hazel Hunt Chief Scientific Officer 183,405 13 Feb, 2025
Sean Maduck 48,179 03 Dec, 2025
Gary Charles Robb Chief Business Officer 25,481 03 Dec, 2025
Atabak Mokari Chief Financial Officer 14,559 03 Dec, 2025
Joseph Douglas Lyon 10,523 03 Dec, 2025
William Guyer Chief Development Officer 1,235 03 Dec, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
01 Dec, 2025 Joseph Douglas Lyon Common Stock A 5,000 $13.56 15,277 D M
01 Dec, 2025 Sean Maduck Common Stock A 20,000 $8.27 27,904 D M
01 Dec, 2025 William Guyer Common Stock A 224 $79.78 224 D A
01 Dec, 2025 Joseph K Belanoff Common Stock D 40,000 $79.77 2,701,370 I S
01 Dec, 2025 Atabak Mokari Common Stock A 178 $79.78 14,499 D A
01 Dec, 2025 Gary Charles Robb Common Stock A 224 $79.78 13,834 D A
01 Dec, 2025 William Guyer Common Stock A 224 $0.00 448 D A
01 Dec, 2025 Sean Maduck Common Stock D 20,000 $79.52 7,904 D S
01 Dec, 2025 Atabak Mokari Common Stock A 178 $0.00 14,677 D A
01 Dec, 2025 Gary Charles Robb Common Stock A 224 $0.00 14,058 D A
01 Dec, 2025 Joseph Douglas Lyon Common Stock D 5,000 $79.53 10,277 D S
02 Dec, 2025 Atabak Mokari Common Stock D 118 $79.78 14,559 D F
01 Dec, 2025 Joseph Douglas Lyon Common Stock A 178 $79.78 10,455 D A
02 Dec, 2025 Gary Charles Robb Common Stock D 148 $79.78 13,910 D F
01 Dec, 2025 Sean Maduck Common Stock A 205 $79.78 8,109 D A
02 Dec, 2025 William Guyer Common Stock D 787 $0.00 0 I G
01 Dec, 2025 Joseph Douglas Lyon Common Stock A 178 $0.00 10,633 D A
01 Dec, 2025 Sean Maduck Common Stock A 205 $0.00 8,314 D A
02 Dec, 2025 William Guyer Common Stock A 787 $0.00 1,235 D J
02 Dec, 2025 Sean Maduck Common Stock D 135 $79.78 8,179 D F