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).
| 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.
| 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 |