SEC Form 4
Corcept Therapeutics Inc. (CORT) insider trading
In the 12 months to Oct 26, 2026, 10 CORT insiders reported open-market sales of $101.2M across 51 filings; one director bought $3.3M.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $101.2M
- 51 filings · 10 insiders
- Open-market purchases
- $3.3M
- 1 filing · G. Leonard Baker Jr., Director
- Pre-arranged sales (10b5-1)
- 45 of 51
- $94.2M of $101.2M sold (93%)
Who traded CORT, and when
- Purchase
- Sale
- Sale, pre-arranged (10b5-1)
CORT daily close from Oct 27, 2025 to Oct 26, 2026, between $32.15 and $123.57, last $87.74. 51 sale and 1 purchase filings by 11 insiders, marked at their filing dates. Sean Maduck, Officer (see filing): sold $24.5M across 11 filings, first filed Nov 5, 2025, last Oct 5, 2026. Atabak Mokari, Chief Financial Officer: sold $18.7M across 4 filings, first filed Jun 3, 2026, last Aug 3, 2026. David L. Mahoney, Director: sold $13.9M across 2 filings, first filed Jun 18, 2026, last Aug 20, 2026. William Guyer, Chief Development Officer: sold $13.1M across 13 filings, first filed Nov 7, 2025, last Aug 12, 2026. Joseph K. Belanoff, Chief Executive Officer: sold $10.4M across 5 filings, first filed Nov 5, 2025, last Jun 2, 2026. Roberto Wandenkolk Vieira, President, Oncology: sold $7.5M across 3 filings, first filed Sep 3, 2026, last Oct 5, 2026. G. Leonard Baker Jr., Director: bought $3.3M across 1 filing, first filed Mar 19, 2026, last Mar 19, 2026. 4 others: sold $13.1M across 13 filings, first filed Nov 5, 2025, last Oct 16, 2026.
Largest mark · tap a row for others
David L. Mahoney · Director
Sale $12,251,411
103,606 shares at $118.25 avg
Filed Aug 20, 2026 · traded Aug 18
Pre-arranged (10b5-1) · close on filing date $121.05
Sean Maduck · Officer (see filing)
Officer (see filing)
$24.5M soldAtabak Mokari · Chief Financial Officer
Chief Financial Officer
$18.7M soldDavid L. Mahoney · Director
Director
$13.9M soldWilliam Guyer · Chief Development Officer
Chief Development Officer
$13.1M soldJoseph K. Belanoff · Chief Executive Officer
Chief Executive Officer
$10.4M soldRoberto Wandenkolk Vieira · President, Oncology
President, Oncology
$7.5M soldG. Leonard Baker Jr. · Director
Director
$3.3M bought4 others
Combined, one mark per week
$13.1M soldOpen-market trades
52 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Sean Maduck | Officer (see filing) | $24.5M | — | 11 | 100% of sales | |
| Atabak Mokari | Chief Financial Officer | $18.7M | — | 4 | 100% of sales | |
| David L. Mahoney | Director | $13.9M | — | 2 | 88% of sales | |
| William Guyer | Chief Development Officer | $13.1M | — | 13 | 97% of sales | |
| Joseph K. Belanoff | Chief Executive Officer | $10.4M | — | 5 | 100% of sales | |
| Roberto Wandenkolk Vieira | President, Oncology | $7.5M | — | 3 | 100% of sales | |
| James N. Wilson | Director | $5.1M | — | 5 | 100% of sales | |
| Joseph Douglas Lyon | Officer (see filing) | $3.6M | — | 6 | 86% of sales | |
| G. Leonard Baker Jr. | Director | — | $3.3M | 1 | — | |
| Kimberly Park | Director | $3.3M | — | 1 | — | |
| Gary Charles Robb | Chief Business Officer | $1.2M | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | James N. Wilson Director | SalePre-arranged (10b5-1) | 10,000 | $114.81 | $1.1M | 1,054,843 | |
traded | Sean Maduck Officer (see filing) | SalePre-arranged (10b5-1) | 25,000 | $116.26 | $2.9M | 9,938 | |
traded | Joseph Douglas Lyon Officer (see filing) | SalePre-arranged (10b5-1) | 10,000 | $116.07 | $1.2M | 10,427 | |
traded | Roberto Wandenkolk Vieira President, Oncology | SalePre-arranged (10b5-1) | 8,333 | $116.10 | $967.4K | 3,946 | |
traded | Roberto Wandenkolk Vieira President, Oncology | SalePre-arranged (10b5-1) | 296 | $100.82 | $29.8K | 3,946 | |
traded | James N. Wilson Director | SalePre-arranged (10b5-1) | 10,000 | $110.69 | $1.1M | 1,064,543 | |
traded | Joseph Douglas Lyon Officer (see filing) | SalePre-arranged (10b5-1) | 10,000 | $113.49 | $1.1M | 7,871 | |
traded | Roberto Wandenkolk Vieira President, Oncology | SalePre-arranged (10b5-1) | 58,333 | $110.76 | $6.5M | 15,205 | |
traded | Sean Maduck Officer (see filing) | SalePre-arranged (10b5-1) | 25,000 | $114.43 | $2.9M | 12,036 | |
traded | Kimberly Park Director | Sale | 26,685 | $122.55 | $3.3M | 0 | |
traded | Sean Maduck Officer (see filing) | SalePre-arranged (10b5-1) | 30,955 | $125.58 | $3.9M | 15,625 | |
traded | David L. Mahoney Director | SalePre-arranged (10b5-1) | 103,606 | $118.25 | $12.3M | 1,133,939 | |
traded | Gary Charles Robb Chief Business Officer | Sale | 10,000 | $116.26 | $1.2M | 39,716 | |
traded | James N. Wilson Director | SalePre-arranged (10b5-1) | 10,000 | $111.43 | $1.1M | 1,074,543 | |
traded | Sean Maduck Officer (see filing) | SalePre-arranged (10b5-1) | 3,664 | $114.49 | $419.5K | 9,755 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 16,300 | $113.43 | $1.8M | 8,755 | |
traded | Sean Maduck Officer (see filing) | SalePre-arranged (10b5-1) | 1,031 | $114.52 | $118.1K | 9,755 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 3,700 | $113.12 | $418.6K | 3,985 | |
traded | Joseph Douglas Lyon Officer (see filing) | Sale | 1,540 | $114.16 | $175.8K | 5,495 | |
traded | Sean Maduck Officer (see filing) | SalePre-arranged (10b5-1) | 20,305 | $114.70 | $2.3M | 9,755 | |
traded | Atabak Mokari Chief Financial Officer | SalePre-arranged (10b5-1) | 80,000 | $114.71 | $9.2M | 82,574 | |
traded | Atabak Mokari Chief Financial Officer | SalePre-arranged (10b5-1) | 40,000 | $87.71 | $3.5M | 16,130 | |
traded | James N. Wilson Director | SalePre-arranged (10b5-1) | 10,000 | $88.30 | $883.0K | 1,086,521 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 20,000 | $93.13 | $1.9M | 3,985 | |
traded | Sean Maduck Officer (see filing) | SalePre-arranged (10b5-1) | 25,000 | $88.35 | $2.2M | 23,731 | |
traded | David L. Mahoney Director | Sale | 20,000 | $84.53 | $1.7M | 26,147 | |
traded | James N. Wilson Director | SalePre-arranged (10b5-1) | 10,000 | $83.20 | $832.0K | 1,094,543 | |
traded | Atabak Mokari Chief Financial Officer | SalePre-arranged (10b5-1) | 40,000 | $81.15 | $3.2M | 46,696 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 20,000 | $70.60 | $1.4M | 3,985 | |
traded | Atabak Mokari Chief Financial Officer | SalePre-arranged (10b5-1) | 40,000 | $70.00 | $2.8M | 15,257 | |
traded | Sean Maduck Officer (see filing) | SalePre-arranged (10b5-1) | 25,000 | $70.21 | $1.8M | 8,977 | |
traded | Joseph K. Belanoff Chief Executive Officer | SalePre-arranged (10b5-1) | 12,837 | $69.74 | $895.3K | 2,565,489 | |
traded | Sean Maduck Officer (see filing) | SalePre-arranged (10b5-1) | 75,000 | $65.59 | $4.9M | 8,977 | |
traded | Joseph Douglas Lyon Officer (see filing) | Sale | 5,000 | $65.00 | $325.0K | 6,230 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 20,000 | $51.83 | $1.0M | 2,231 | |
traded | Joseph K. Belanoff Chief Executive Officer | SalePre-arranged (10b5-1) | 40,000 | $50.10 | $2.0M | 2,878,326 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 20,000 | $40.97 | $819.4K | 2,231 | |
traded | Joseph K. Belanoff Chief Executive Officer | SalePre-arranged (10b5-1) | 26,198 | $50.07 | $1.3M | 2,918,326 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 11,767 | $36.01 | $423.7K | 2,231 | |
traded | G. Leonard Baker Jr. Director | Purchase | 100,000 | $33.14 | $3.3M | 1,146,631 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 8,233 | $35.99 | $296.3K | 2,231 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 20,000 | $40.87 | $817.3K | 1,235 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 20,000 | $35.18 | $703.7K | 1,235 | |
traded | William Guyer Chief Development Officer | Sale | 4,500 | $80.90 | $364.1K | 787 | |
traded | Joseph K. Belanoff Chief Executive Officer | SalePre-arranged (10b5-1) | 40,000 | $79.77 | $3.2M | 2,701,370 | |
traded | Joseph Douglas Lyon Officer (see filing) | SalePre-arranged (10b5-1) | 5,000 | $79.53 | $397.6K | 10,277 | |
traded | Sean Maduck Officer (see filing) | SalePre-arranged (10b5-1) | 20,000 | $79.52 | $1.6M | 7,904 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 20,000 | $80.08 | $1.6M | 1,875 | |
traded | William Guyer Chief Development Officer | SalePre-arranged (10b5-1) | 20,000 | $75.36 | $1.5M | 5,587 | |
traded | Sean Maduck Officer (see filing) | SalePre-arranged (10b5-1) | 20,000 | $73.99 | $1.5M | 7,904 | |
traded | Joseph K. Belanoff Chief Executive Officer | SalePre-arranged (10b5-1) | 40,000 | $74.58 | $3.0M | 2,755,797 | |
traded | Joseph Douglas Lyon Officer (see filing) | SalePre-arranged (10b5-1) | 5,000 | $73.65 | $368.2K | 10,277 |
GET /stocks/filings/vX/form-4?tickers=CORT&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"CORT"
],
"issuer_cik": "0001088856",
"owner_cik": "0001236387",
"accession_number": "0001193125-26-424350",
"form_type": "4",
"filing_date": "2026-10-16",
"period_of_report": "2026-10-15",
"issuer_name": "CORCEPT THERAPEUTICS INC",
"issuer_trading_symbol": "CORT",
"owner_name": "WILSON JAMES N",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-15",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 6654,
"transaction_price_per_share": 114.4751,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 1057889,
"transaction_value": 761717.3154,
"direct_or_indirect": "I",
"nature_of_ownership": "James N. Wilson and Pamela D. Wilson Trust",
"footnotes": [
{
"id": "F1",
"description": "This transaction was made pursuant to a 10b5-1 plan adopted by the Reporting Person on March 12, 2026 in effect at the time of this transaction."
},
{
"id": "F2",
"description": "Represents the weighted average sale price for the entire number of shares sold. The actual sale prices range from $114.13 to $115.12 per share. Information on the exact number of shares sold at each sale price can be obtained from the Issuer upon request."
},
{
"id": "F5",
"description": "Reporting Person has voting power over the shares held by the James N. Wilson and Pamela D. Wilson Trust pursuant to voting agreements and disclaims beneficial ownership of all of such shares, except to the extent of his pecuniary interest therein."
}
],
"remarks": "The power of attorney under which this form was signed is on file with the Commission."
},
{
"tickers": [
"CORT"
],
"issuer_cik": "0001088856",
"owner_cik": "0001236387",
"accession_number": "0001193125-26-424350",
"form_type": "4",
"filing_date": "2026-10-16",
"period_of_report": "2026-10-15",
"issuer_name": "CORCEPT THERAPEUTICS INC",
"issuer_trading_symbol": "CORT",
"owner_name": "WILSON JAMES N",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-15",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 300,
"transaction_price_per_share": 116.2967,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 1054543,
"transaction_value": 34889.01,
"direct_or_indirect": "I",
"nature_of_ownership": "James N. Wilson and Pamela D. Wilson Trust",
"footnotes": [
{
"id": "F1",
"description": "This transaction was made pursuant to a 10b5-1 plan adopted by the Reporting Person on March 12, 2026 in effect at the time of this transaction."
},
{
"id": "F4",
"description": "Represents the weighted average sale price for the entire number of shares sold. The actual sale prices range from $116.19 to $116.35 per share. Information on the exact number of shares sold at each sale price can be obtained from the Issuer upon request."
},
{
"id": "F5",
"description": "Reporting Person has voting power over the shares held by the James N. Wilson and Pamela D. Wilson Trust pursuant to voting agreements and disclaims beneficial ownership of all of such shares, except to the extent of his pecuniary interest therein."
}
],
"remarks": "The power of attorney under which this form was signed is on file with the Commission."
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 154 records
- Option exercises50 records
- Tax withholding23 records
- Grants and awards42 records
- Gifts30 records
- Other9 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
- Counted once
- When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.
Frequently asked questions
Has Corcept Therapeutics Inc.'s CEO sold stock?
Yes. Joseph K. Belanoff (CEO) sold 159,035 shares ($10.4M) between Nov 2025 and Jun 2026, all under a pre-arranged 10b5-1 plan.
How current is CORT’s insider data?
These are CORT Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for CORT every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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