CORT insider buying and SEC filings, explained
Corcept Therapeutics Inc. · CIK 1088856
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Company profile
- Exchanges
- Nasdaq
- Industry (SIC)
- Pharmaceutical Preparations
- State of incorporation
- DE
- Fiscal year end
- Dec 31
Insider activity in the last 12 months
Bought
$3.3M
Insiders who bought
1
Sold (not marked 10b5-1)
$3.7M
Planned sales (10b5-1)
$94.2M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 15, 2026 | Planned (10b5-1) | James N. Wilson (Director) sold 10,000 shares indirectly (by trust) at about $114.81 ($1.1M), marked as a 10b5-1 plan trade. Holdings by trust down 1% to 1,054,543 shares. | SEC filing Filed Oct 16, 2026, 6:24 PM ET |
| Oct 2, 2026 | Planned (10b5-1) | Roberto Wandenkolk Vieira (President / COO) sold 8,333 shares at about $116.10 ($967K), marked as a 10b5-1 plan trade. Holdings down 68% to 3,946 shares. | SEC filing Filed Oct 5, 2026, 7:58 PM ET |
| Oct 1–2, 2026 | Planned (10b5-1) | Joseph Douglas Lyon (Chief Accounting & Technology Officer) sold 10,000 shares between Oct 1 and Oct 2 at about $116.07 ($1.2M), marked as a 10b5-1 plan trade. Holdings down 64% to 5,683 shares. | SEC filing Filed Oct 5, 2026, 7:54 PM ET |
| Oct 1–2, 2026 | Planned (10b5-1) | Sean Maduck (President / COO) sold 25,000 shares between Oct 1 and Oct 2 at about $116.26 ($2.9M), marked as a 10b5-1 plan trade. Holdings down 72% to 9,938 shares. | SEC filing Filed Oct 5, 2026, 7:49 PM ET |
| Sep 16, 2026 | Planned (10b5-1) | Roberto Wandenkolk Vieira (President / COO) sold 296 shares at $100.82 ($30K), marked as a 10b5-1 plan trade. Holdings down 7% to 3,946 shares. | SEC filing Filed Sep 18, 2026 |
| Sep 15, 2026 | Planned (10b5-1) | James N. Wilson (Director) sold 10,000 shares indirectly (by trust) at about $110.69 ($1.1M), marked as a 10b5-1 plan trade. Holdings by trust down 1% to 1,064,543 shares. | SEC filing Filed Sep 16, 2026 |
| Sep 14, 2026 | Planned (10b5-1) | Joseph Douglas Lyon (Chief Accounting & Technology Officer) sold 10,000 shares at about $113.50 ($1.1M), marked as a 10b5-1 plan trade. Holdings down 64% to 5,683 shares. | SEC filing Filed Sep 16, 2026 |
| Sep 1, 2026 | Planned (10b5-1) | Sean Maduck (President / COO) sold 25,000 shares at about $114.43 ($2.9M), marked as a 10b5-1 plan trade. Holdings down 72% to 9,755 shares. | SEC filing Filed Sep 3, 2026 |
| Sep 2, 2026 | Planned (10b5-1) | Roberto Wandenkolk Vieira (President / COO) sold 58,333 shares at about $110.76 ($6.5M), marked as a 10b5-1 plan trade. Holdings down 93% to 4,242 shares. | SEC filing Filed Sep 3, 2026 |
| Aug 25, 2026 | Planned (10b5-1) | Sean Maduck (President / COO) sold 30,955 shares at about $125.58 ($3.9M), marked as a 10b5-1 plan trade. Holdings down 76% to 9,755 shares. | SEC filing Filed Aug 27, 2026 |
| Aug 18, 2026 | Planned (10b5-1) | David L. Mahoney (Director) sold 103,606 shares indirectly (by trust) at about $118.25 ($12.3M), marked as a 10b5-1 plan trade. Holdings by trust down 8% to 1,133,539 shares. | SEC filing Filed Aug 20, 2026 |
| Aug 17, 2026 | Sale | Gary Charles Robb (Chief Business Officer) sold 10,000 shares indirectly (by trust) at about $116.26 ($1.2M). Holdings by trust down 20% to 39,716 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 18, 2026 |
| Aug 14, 2026 | Planned (10b5-1) | Sean Maduck (President / COO) sold 3,664 shares at $114.49 ($419K), marked as a 10b5-1 plan trade. Holdings down 27% to 9,755 shares. | SEC filing Filed Aug 18, 2026 |
| Aug 14, 2026 | Planned (10b5-1) | James N. Wilson (Director) sold 10,000 shares indirectly (by trust) at about $111.42 ($1.1M), marked as a 10b5-1 plan trade. Holdings by trust down 1% to 1,074,543 shares. | SEC filing Filed Aug 18, 2026 |
| Aug 10, 2026 | Planned (10b5-1) | Sean Maduck (President / COO) sold 1,031 shares at about $114.52 ($118K), marked as a 10b5-1 plan trade. Holdings down 10% to 9,755 shares. | SEC filing Filed Aug 12, 2026 |
| Aug 10, 2026 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 16,300 shares at about $113.43 ($1.8M), marked as a 10b5-1 plan trade. Holdings down 80% to 3,985 shares. | SEC filing Filed Aug 12, 2026 |
| Aug 4, 2026 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 3,700 shares at about $113.12 ($419K), marked as a 10b5-1 plan trade. Holdings down 48% to 3,985 shares. | SEC filing Filed Aug 6, 2026 |
| Aug 3, 2026 | Planned (10b5-1) | Sean Maduck (President / COO) sold 20,305 shares at about $114.70 ($2.3M), marked as a 10b5-1 plan trade. Holdings down 68% to 9,755 shares. | SEC filing Filed Aug 5, 2026 |
| Aug 3, 2026 | Sale | Joseph Douglas Lyon (Chief Accounting & Technology Officer) sold 1,540 shares at $114.16 ($176K). Holdings down 22% to 5,495 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Aug 5, 2026 |
| Jul 30, 2026 | Planned (10b5-1) | Atabak Mokari (CFO) sold 80,000 shares at about $114.72 ($9.2M), marked as a 10b5-1 plan trade. Holdings down 83% to 16,130 shares. | SEC filing Filed Aug 3, 2026 |
| Jul 15, 2026 | Planned (10b5-1) | James N. Wilson (Director) sold 10,000 shares indirectly (by trust) at about $88.30 ($883K), marked as a 10b5-1 plan trade. Holdings by trust down 1% to 1,084,543 shares. | SEC filing Filed Jul 17, 2026 |
| Jul 15, 2026 | Planned (10b5-1) | Atabak Mokari (CFO) sold 40,000 shares at about $87.71 ($3.5M), marked as a 10b5-1 plan trade. Holdings down 71% to 16,130 shares. | SEC filing Filed Jul 17, 2026 |
| Jul 7, 2026 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 20,000 shares at about $93.13 ($1.9M), marked as a 10b5-1 plan trade. Holdings down 83% to 3,985 shares. | SEC filing Filed Jul 8, 2026 |
| Jul 1, 2026 | Planned (10b5-1) | Sean Maduck (President / COO) sold 25,000 shares at about $88.35 ($2.2M), marked as a 10b5-1 plan trade. Holdings down 72% to 9,755 shares. | SEC filing Filed Jul 6, 2026 |
| Jun 17, 2026 | Sale | David L. Mahoney (Director) sold 20,000 shares indirectly (by entity) at about $84.53 ($1.7M). Holdings by entity down 43% to 26,147 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jun 18, 2026 |
| Jun 16, 2026 | Planned (10b5-1) | James N. Wilson (Director) sold 10,000 shares indirectly (by trust) at about $83.20 ($832K), marked as a 10b5-1 plan trade. Holdings by trust down 1% to 1,094,543 shares. | SEC filing Filed Jun 18, 2026 |
| Jun 15, 2026 | Planned (10b5-1) | Atabak Mokari (CFO) sold 40,000 shares at about $81.15 ($3.2M), marked as a 10b5-1 plan trade. Holdings down 71% to 16,130 shares. | SEC filing Filed Jun 17, 2026 |
| Jun 2, 2026 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 20,000 shares at about $70.60 ($1.4M), marked as a 10b5-1 plan trade. Holdings down 83% to 3,985 shares. | SEC filing Filed Jun 4, 2026 |
| Jun 1, 2026 | Planned (10b5-1) | Sean Maduck (President / COO) sold 25,000 shares at about $70.21 ($1.8M), marked as a 10b5-1 plan trade. Holdings down 74% to 8,977 shares. | SEC filing Filed Jun 3, 2026 |
| Jun 1, 2026 | Planned (10b5-1) | Atabak Mokari (CFO) sold 40,000 shares at about $70.00 ($2.8M), marked as a 10b5-1 plan trade. Holdings down 72% to 15,257 shares. | SEC filing Filed Jun 3, 2026 |
| Jun 1, 2026 | Planned (10b5-1) | Joseph K. Belanoff (CEO and Director) sold 12,837 shares indirectly (by trust) at $69.74 ($895K), marked as a 10b5-1 plan trade. Holdings by trust down <1% to 2,565,489 shares. | SEC filing Filed Jun 2, 2026 |
| May 27, 2026 | Sale | Joseph Douglas Lyon (Chief Accounting & Technology Officer) sold 5,000 shares at $65.00 ($325K). Holdings down 45% to 6,230 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 29, 2026 |
| May 27, 2026 | Planned (10b5-1) | Sean Maduck (President / COO) sold 75,000 shares at about $65.59 ($4.9M), marked as a 10b5-1 plan trade. Holdings down 89% to 8,977 shares. | SEC filing Filed May 29, 2026 |
| May 5, 2026 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 20,000 shares at about $51.83 ($1.0M), marked as a 10b5-1 plan trade. Holdings down 90% to 2,231 shares. | SEC filing Filed May 7, 2026 |
| May 1, 2026 | Planned (10b5-1) | Joseph K. Belanoff (CEO and Director) sold 40,000 shares indirectly (by trust) at about $50.10 ($2.0M), marked as a 10b5-1 plan trade. Holdings by trust down 1% to 2,878,326 shares. | SEC filing Filed May 5, 2026 |
| Apr 7, 2026 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 20,000 shares at about $40.97 ($819K), marked as a 10b5-1 plan trade. Holdings down 90% to 2,231 shares. | SEC filing Filed Apr 8, 2026 |
| Mar 25, 2026 | Planned (10b5-1) | Joseph K. Belanoff (CEO and Director) sold 26,198 shares indirectly (by trust) at about $50.07 ($1.3M), marked as a 10b5-1 plan trade. Holdings by trust down 1% to 2,918,326 shares. | SEC filing Filed Mar 27, 2026 |
| Mar 20, 2026 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 11,767 shares at about $36.01 ($424K), marked as a 10b5-1 plan trade. Holdings down 84% to 2,231 shares. | SEC filing Filed Mar 24, 2026 |
| Mar 17, 2026 | Purchase (code P) | G. Leonard Baker Jr. (Director) bought 100,000 shares at about $33.14 ($3.3M), reported as a purchase (code P). Holdings up 10% to 1,146,631 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 19, 2026 |
| Mar 4, 2026 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 8,233 shares at about $35.99 ($296K), marked as a 10b5-1 plan trade. Holdings down 79% to 2,231 shares. | SEC filing Filed Mar 6, 2026 |
| Feb 3, 2026 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 20,000 shares at about $40.87 ($817K), marked as a 10b5-1 plan trade. Holdings down 94% to 1,235 shares. | SEC filing Filed Feb 5, 2026 |
| Jan 6, 2026 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 20,000 shares at about $35.18 ($704K), marked as a 10b5-1 plan trade. Holdings down 94% to 1,235 shares. | SEC filing Filed Jan 8, 2026 |
| Dec 2, 2025 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 20,000 shares at about $80.08 ($1.6M), marked as a 10b5-1 plan trade. Holdings down 94% to 1,235 shares. | SEC filing Filed Dec 3, 2025 |
| Dec 1, 2025 | Planned (10b5-1) | Sean Maduck (President / COO) sold 20,000 shares at about $79.52 ($1.6M), marked as a 10b5-1 plan trade. Holdings down 72% to 7,904 shares. | SEC filing Filed Dec 3, 2025 |
| Dec 1, 2025 | Planned (10b5-1) | Joseph Douglas Lyon (Chief Accounting & Technology Officer) sold 5,000 shares at about $79.53 ($398K), marked as a 10b5-1 plan trade. Holdings down 33% to 10,277 shares. | SEC filing Filed Dec 3, 2025 |
| Dec 1, 2025 | Planned (10b5-1) | Joseph K. Belanoff (CEO and Director) sold 40,000 shares indirectly (by trust) at about $79.77 ($3.2M), marked as a 10b5-1 plan trade. Holdings by trust down 1% to 2,701,370 shares. | SEC filing Filed Dec 3, 2025 |
| Nov 25, 2025 | Sale Amended filing | William Guyer (Chief Development Officer) sold 4,500 shares indirectly (by trust) at about $80.90 ($364K). Holdings by trust down 85% to 787 shares. Not marked as a 10b5-1 plan trade. This amends an earlier filing that is not in our records. | SEC filing Filed Dec 3, 2025 |
| Nov 25, 2025 | Sale | William Guyer (Chief Development Officer) sold 4,500 shares at about $80.90 ($364K). Holdings down 85% to 787 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Nov 26, 2025 |
| Nov 5, 2025 | Planned (10b5-1) | William Guyer (Chief Development Officer) sold 20,000 shares at about $75.36 ($1.5M), marked as a 10b5-1 plan trade. Holdings down 79% to 5,287 shares. | SEC filing Filed Nov 7, 2025 |
| Nov 3, 2025 | Planned (10b5-1) | Joseph Douglas Lyon (Chief Accounting & Technology Officer) sold 5,000 shares at about $73.65 ($368K), marked as a 10b5-1 plan trade. Holdings down 33% to 10,277 shares. | SEC filing Filed Nov 5, 2025 |
| Nov 3–5, 2025 | Planned (10b5-1) | Joseph K. Belanoff (CEO and Director) sold 40,000 shares indirectly (by trust) between Nov 3, 2025 and Nov 5, 2025 at about $74.58 ($3.0M), marked as a 10b5-1 plan trade. Holdings by trust down 1% to 2,741,370 shares. | SEC filing Filed Nov 5, 2025 |
| Nov 3, 2025 | Planned (10b5-1) | Sean Maduck (President / COO) sold 20,000 shares at about $73.99 ($1.5M), marked as a 10b5-1 plan trade. Holdings down 72% to 7,904 shares. | SEC filing Filed Nov 5, 2025 |
86 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
| Filed | Items | Tag | Source |
|---|---|---|---|
| Nov 3, 2026, 4:09 PM ET 8-K | Earnings released (Item 2.02) Reg FD disclosure (Item 7.01) | SEC filing |
Red flags are objective triggers only: the item or form filed, never an opinion.
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