SEC Form 4Coverage since Aug 8, 2025Open-market trades only
$CORT insider trading
Over the last 12 months, Corcept Therapeutics insiders reported 1 buy totaling $3.3M and 53 sales totaling $102.5M across SEC Form 4 filings. 87% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- $3.3M 1 event
- Sold · 12m
- $102.5M 53 events
- Events · 12m
- 54 Form 4 filings, grouped
- Insiders · 12m
- 12 distinct reporters
- 10b5-1 share
- 87% of events, not dollars
Side
Price · $CORT · 3Mvia TradingView
Top insiders · 12m
Guyer WilliamChief Development Officer14× · $14.9M
Maduck SeanSee Remarks13× · $23.3M
Lyon Joseph DouglasSee Remarks6× · $2.8M
BELANOFF JOSEPH KChief Executive Officer6× · $13.8M
WILSON JAMES N—4× · $3.9M
All insider trades
50 of 62 events
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | WILSON JAMES ND | ▼ Sale | 10,000 | $110.69 | $1.1M | -0.9% | plan · 3 tranches · indirect |
| Sep 14, 2026 | Lyon Joseph DouglasSee Remarks · O | ▼ Sale | 10,000 | $113.49 | $1.1M | -63.8% | plan · 2 tranches |
| Sep 2, 2026 | Vieira Roberto WandenkolkPresident, Oncology · O | ▼ Sale | 58,333 | $110.76 | $6.5M | -93.2% | plan · 7 tranches |
| Sep 1, 2026 | Maduck SeanSee Remarks · O | ▼ Sale | 25,000 | $114.43 | $2.9M | -71.9% | plan · 3 tranches |
| Aug 26, 2026 | Park KimberlyD | ▼ Sale | 26,685 | $122.55 | $3.3M | -100% | — |
| Aug 25, 2026 | Maduck SeanSee Remarks · O | ▼ Sale | 30,955 | $125.58 | $3.9M | -76% | plan · 2 tranches |
| Aug 18, 2026 | MAHONEY DAVID LD | ▼ Sale | 103,606 | $118.25 | $12.3M | -8.4% | plan · 4 tranches · indirect |
| Aug 17, 2026 | Robb Gary CharlesChief Business Officer · O | ▼ Sale | 10,000 | $116.26 | $1.2M | -20.1% | indirect |
| Aug 14, 2026 | Maduck SeanSee Remarks · O | ▼ Sale | 3,664 | $114.49 | $419K | -27.3% | plan |
| Aug 14, 2026 | WILSON JAMES ND | ▼ Sale | 10,000 | $111.43 | $1.1M | -0.9% | plan · 3 tranches · indirect |
| Aug 10, 2026 | Maduck SeanSee Remarks · O | ▼ Sale | 1,031 | $114.52 | $118K | -9.6% | plan |
| Aug 10, 2026 | Guyer WilliamChief Development Officer · O | ▼ Sale | 16,300 | $113.43 | $1.8M | -80.4% | plan · 2 tranches |
| Aug 4, 2026 | Guyer WilliamChief Development Officer · O | ▼ Sale | 3,700 | $113.12 | $419K | -48.1% | plan |
| Aug 3, 2026 | Maduck SeanSee Remarks · O | ▼ Sale | 20,305 | $114.7 | $2.3M | -67.5% | plan |
| Aug 3, 2026 | Lyon Joseph DouglasSee Remarks · O | ▼ Sale | 1,540 | $114.16 | $176K | -21.9% | — |
| Jul 30, 2026 | Mokari AtabakChief Financial Officer · O | ▼ Sale | 80,000 | $114.71 | $9.2M | -83.2% | plan · 13 tranches |
| Jul 15, 2026 | WILSON JAMES ND | ▼ Sale | 10,000 | $88.3 | $883K | -0.9% | plan · 4 tranches · indirect |
| Jul 15, 2026 | Mokari AtabakChief Financial Officer · O | ▼ Sale | 40,000 | $87.71 | $3.5M | -71.3% | plan · 4 tranches |
| Jul 7, 2026 | Guyer WilliamChief Development Officer · O | ▼ Sale | 20,000 | $93.13 | $1.9M | -83.4% | plan · 2 tranches |
| Jul 1, 2026 | Maduck SeanSee Remarks · O | ▼ Sale | 25,000 | $88.35 | $2.2M | -71.9% | plan · 3 tranches |
| Jun 17, 2026 | MAHONEY DAVID LD | ▼ Sale | 20,000 | $84.53 | $1.7M | -43.3% | indirect |
| Jun 16, 2026 | WILSON JAMES ND | ▼ Sale | 10,000 | $83.2 | $832K | -0.9% | plan · 2 tranches · indirect |
| Jun 15, 2026 | Mokari AtabakChief Financial Officer · O | ▼ Sale | 40,000 | $81.15 | $3.2M | -71.3% | plan · 4 tranches |
| Jun 2, 2026 | Guyer WilliamChief Development Officer · O | ▼ Sale | 20,000 | $70.6 | $1.4M | -83.4% | plan |
| Jun 1, 2026 | Maduck SeanSee Remarks · O | ▼ Sale | 3,931 | $70.75 | $278K | -30.5% | plan |
| Jun 1, 2026 | Maduck SeanSee Remarks · O | ▼ Sale | 21,069 | $70.11 | $1.5M | -62% | plan |
| Jun 1, 2026 | Mokari AtabakChief Financial Officer · O | ▼ Sale | 40,000 | $70 | $2.8M | -72.4% | plan |
| Jun 1, 2026 | BELANOFF JOSEPH KChief Executive Officer · O·D | ▼ Sale | 12,837 | $69.74 | $895K | -0.5% | plan · indirect |
| May 27, 2026 | Lyon Joseph DouglasSee Remarks · O | ▼ Sale | 5,000 | $65 | $325K | -44.5% | — |
| May 27, 2026 | Maduck SeanSee Remarks · O | ▼ Sale | 20,425 | $66.16 | $1.4M | -69.5% | plan |
| May 27, 2026 | Maduck SeanSee Remarks · O | ▼ Sale | 54,575 | $65.37 | $3.6M | -65% | plan |
| May 5, 2026 | Guyer WilliamChief Development Officer · O | ▼ Sale | 20,000 | $51.83 | $1.0M | -90% | plan |
| May 1, 2026 | BELANOFF JOSEPH KChief Executive Officer · O·D | ▼ Sale | 40,000 | $50.1 | $2.0M | -1.4% | plan · indirect |
| Apr 7, 2026 | Guyer WilliamChief Development Officer · O | ▼ Sale | 20,000 | $40.97 | $819K | -90% | plan |
| Mar 25, 2026 | BELANOFF JOSEPH KChief Executive Officer · O·D | ▼ Sale | 26,198 | $50.07 | $1.3M | -0.9% | plan · indirect |
| Mar 20, 2026 | Guyer WilliamChief Development Officer · O | ▼ Sale | 11,767 | $36.01 | $424K | -84.1% | plan |
| Mar 17, 2026 | BAKER G LEONARD JRD | ▲ Buy | 100,000 | $33.14 | $3.3M | +9.6% | 2 tranches |
| Mar 4, 2026 | Guyer WilliamChief Development Officer · O | ▼ Sale | 8,233 | $35.99 | $296K | -78.7% | plan |
| Feb 3, 2026 | Guyer WilliamChief Development Officer · O | ▼ Sale | 20,000 | $40.87 | $817K | -94.2% | plan |
| Jan 6, 2026 | Guyer WilliamChief Development Officer · O | ▼ Sale | 20,000 | $35.18 | $704K | -94.2% | plan |
| Dec 2, 2025 | Guyer WilliamChief Development Officer · O | ▼ Sale | 20,000 | $80.08 | $1.6M | -94.2% | plan · 2 tranches |
| Dec 1, 2025 | Maduck SeanSee Remarks · O | ▼ Sale | 20,000 | $79.52 | $1.6M | -71.7% | plan |
| Dec 1, 2025 | Lyon Joseph DouglasSee Remarks · O | ▼ Sale | 5,000 | $79.53 | $398K | -32.7% | plan |
| Dec 1, 2025 | BELANOFF JOSEPH KChief Executive Officer · O·D | ▼ Sale | 40,000 | $79.77 | $3.2M | -1.5% | plan · indirect |
| Nov 25, 2025 | Guyer WilliamChief Development Officer · O | ▼ Sale | 4,500 | $80.9 | $364K | -85.1% | — |
| Nov 5, 2025 | Guyer WilliamChief Development Officer · O | ▼ Sale | 20,000 | $75.36 | $1.5M | -79.1% | plan · 3 tranches |
| Nov 5, 2025 | BELANOFF JOSEPH KChief Executive Officer · O·D | ▼ Sale | 40,000 | $74.58 | $3.0M | -1.4% | plan · 4 tranches · indirect |
| Nov 3, 2025 | Lyon Joseph DouglasSee Remarks · O | ▼ Sale | 5,000 | $73.65 | $368K | -32.7% | plan |
| Nov 3, 2025 | Maduck SeanSee Remarks · O | ▼ Sale | 20,000 | $73.99 | $1.5M | -71.7% | plan |
| Oct 10, 2025 | Swisher Daniel N JRD | ▼ Sale | 2,200 | $87.54 | $193K | -100% | plan |
Every $CORT filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Corcept Therapeutics filings can reach your inbox instead.
About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $CORT feed.