X0508 4 2025-12-01 0001088856 CORCEPT THERAPEUTICS INC CORT 0001817838 Lyon Joseph Douglas C/O CORCEPT THERAPEUTICS INCORPORATED 101 REDWOOD SHORES PARKWAY REDWOOD CITY CA 94065 false true false false See Remarks true Common Stock 2025-12-01 4 M false 5000 13.56 A 15277 D Common Stock 2025-12-01 4 S false 5000 79.5263 D 10277 D Common Stock 2025-12-01 4 A false 178 79.78 A 10455 D Common Stock 2025-12-01 4 A false 178 0.00 A 10633 D Common Stock 2025-12-02 4 F false 110 79.78 D 10523 D Stock option (right to buy) 13.56 2025-12-01 4 M false 5000 0 D 2030-02-07 Common Stock 5000 11571 D Includes 216 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer on March 3, 2025, 749 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer on June 2, 2025 and 200 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer on September 2, 2025. 100% of the shares underlying the restricted stock awards will vest on the one-year anniversary of the grant date provided the Reporting Person satisfies certain requirements. The transaction was made pursuant to a 10b5-1 plan adopted by the Reporting Person on August 30, 2024 in effect at the time of this transaction. Represents the weighted average sale price for the entire number of shares sold. The actual sale prices range from $79.40 to $79.73 per share. Information on the exact number of shares sold at each sale price can be obtained from the Issuer upon request. The Reporting Person purchased shares ("Purchase Plan Shares") of the Issuer's common stock pursuant to a purchase plan ("Purchase Plan") established under the Corcept Therapeutics Incorporated 2024 Incentive Award Plan on December 1, 2025. In accordance with the Purchase Plan, the price was established based on the closing price on the day of the purchase. Shares underlie unvested restricted stock awards granted to the Reporting Person by the Issuer under the Purchase Plan. 100% of the shares underlying the restricted stock awards will vest on the one-year anniversary of the grant date provided the Reporting Person remains the beneficial owner of the Purchase Plan Shares through such one-year anniversary. These shares were withheld by the Issuer in order to satisfy certain tax withholding obligations in connection with the issuance of shares upon the vesting of restricted stock units. The closing price on December 1, 2025 was used to calculate the withholding obligation. Fully exercisable. Chief Accounting & Technology Officer /s/ Joseph Douglas Lyon 2025-12-03