X0609 4 2026-09-01 0001088856 CORCEPT THERAPEUTICS INC CORT 0001879013 Guyer William false C/O CORCEPT THERAPEUTICS INCORPORATED 101 REDWOOD SHORES PARKWAY REDWOOD CITY CA 94065 false true false false Chief Development Officer false Common Stock 2026-09-01 4 A false 164 113.38 A 4149 D Common Stock 2026-09-01 4 A false 164 0 A 4313 D 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 September 1, 2026. In accordance with the Purchase Plan, the price was established based on the closing price on the day of the purchase. Includes 224 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer on December 1, 2025, 498 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer on March 2, 2026 and 877 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer on June 1, 2026. 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. 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. The power of attorney under which this form was signed is on file with the Commission. /s/ Joseph Douglas Lyon, as attorney-in-fact for William Guyer 2026-09-03