CORT · Insider Trading

Corcept Therapeutics Inc.

Every open-market purchase and sale reported by CORT officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
10
code S
Reporting Insiders
12
current holders
CORT — Recent Form 4 Transactions (latest 2026-10-16)
FiledInsiderRole TypeSharesValue
2026-10-16 James N Wilson Director Sell −10,000 −$1.15M
2026-10-05 Justin Frederick Gunn See Remarks A +100,000 deriv. —
2026-10-05 Sean Maduck See Remarks MIXED — −$2.70M
2026-10-05 Roberto Wandenkolk Vieira President, Oncology MIXED — −$787.21K
2026-10-05 Joseph Douglas Lyon See Remarks MIXED — −$991.88K
2026-09-28 Gary Charles Robb Chief Business Officer G −7,100 —
2026-09-18 Roberto Wandenkolk Vieira President, Oncology Sell −296 −$29.84K
2026-09-18 Gary Charles Robb Chief Business Officer M +17,493 +$144.67K
2026-09-16 James N Wilson Director Sell −10,000 −$1.11M
2026-09-16 Joseph Douglas Lyon See Remarks MIXED — −$1.01M
2026-09-03 William Guyer Chief Development Officer A +328 +$18.59K
2026-09-03 Gary Charles Robb Chief Business Officer MIXED +237 +$8.28K
2026-09-03 Joseph Douglas Lyon See Remarks MIXED +188 +$6.58K
2026-09-03 Atabak Mokari Chief Financial Officer MIXED +174 +$4.08K
2026-09-03 Roberto Wandenkolk Vieira President, Oncology MIXED +174 −$5.19M
2026-09-03 Sean Maduck See Remarks MIXED +183 −$2.65M
2026-08-28 Kimberly Park Director MIXED — −$3.27M
2026-08-27 Sean Maduck See Remarks MIXED — −$3.54M
2026-08-20 David L Mahoney Director Sell −103,606 −$12.25M
2026-08-18 Gary Charles Robb Chief Business Officer MIXED −10,125 −$1.16M
2026-08-18 James N Wilson Director Sell −10,000 −$1.11M
2026-08-18 Sean Maduck See Remarks MIXED — −$389.19K
2026-08-14 Gary Charles Robb Chief Business Officer G −5,530 —
2026-08-12 William Guyer Chief Development Officer MIXED — −$1.50M
2026-08-12 Sean Maduck See Remarks MIXED — −$109.54K
2026-08-06 William Guyer Chief Development Officer MIXED — −$338.46K
2026-08-06 William Guyer Chief Development Officer MIXED — −$338.46K
2026-08-05 Joseph Douglas Lyon See Remarks Sell −1,540 −$175.81K
2026-08-05 Sean Maduck See Remarks MIXED — −$2.16M
2026-08-03 Atabak Mokari Chief Financial Officer MIXED — −$7.33M
2026-07-17 Atabak Mokari Chief Financial Officer MIXED — −$2.65M
2026-07-17 James N Wilson Director Sell −10,000 −$882.99K
2026-07-08 William Guyer Chief Development Officer MIXED — −$1.43M
2026-07-08 Gary Charles Robb Chief Business Officer G −600 —
2026-07-06 Sean Maduck See Remarks MIXED — −$2.00M
2026-06-18 David L Mahoney Director Sell −20,000 −$1.69M
2026-06-18 James N Wilson Director Sell −10,000 −$832.05K
2026-06-17 Atabak Mokari Chief Financial Officer MIXED — −$2.48M
2026-06-04 William Guyer Chief Development Officer MIXED — −$979.00K
2026-06-03 Gary Charles Robb Chief Business Officer MIXED +1,194 +$29.44K
2026-06-03 Atabak Mokari Chief Financial Officer MIXED +873 −$2.01M
2026-06-03 Sean Maduck See Remarks MIXED +778 −$1.54M
2026-06-03 William Guyer Chief Development Officer A +1,754 +$61.78K
2026-06-03 Joseph Douglas Lyon See Remarks MIXED +805 +$18.88K
2026-06-02 Joseph K Belanoff Chief Executive Officer MIXED −12,837 −$895.25K
2026-05-29 James N Wilson Director G −892,056 —
2026-05-29 Sean Maduck See Remarks MIXED — −$4.30M
2026-05-29 Joseph Douglas Lyon See Remarks Sell −5,000 −$325.00K
2026-05-26 Kimberly Park Director A +12,500 deriv. —
2026-05-26 David L Mahoney Director A +12,500 deriv. —
CORT — Current Insider Holders
InsiderRole Shares HeldValue
G Leonard Baker Jr Director 4,454,934 $361.38M
David L Mahoney Director 1,163,939 $94.42M
James N Wilson Director 1,057,889 $85.82M
Joseph K Belanoff Chief Executive Officer 393,154 $31.89M
Hazel Hunt Chief Scientific Officer 255,437 $20.72M
Sean Maduck See Remarks 68,525 $5.56M
Gary Charles Robb Chief Business Officer 34,627 $2.81M
Atabak Mokari Chief Financial Officer 16,304 $1.32M
Roberto Wandenkolk Vieira President, Oncology 11,179 $906.84K
Joseph Douglas Lyon See Remarks 6,493 $526.71K
William Guyer Chief Development Officer 4,313 $349.87K
Daniel N Swisher JR Director 2,200 $178.46K
CORT Insider Trading FAQ
Who are the insiders at CORT?
12 officers, directors and 10%+ beneficial owners currently report holdings in CORT via SEC Form 4.
Are CORT insiders buying or selling?
Across the 50 most recent Form 4 filings for CORT, 0 were open-market purchases (code P) and 10 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is CORT insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent CORT filing is dated 2026-10-16.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the CORT quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.