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Form 4 CORCEPT THERAPEUTICS For: Jun 01 Filed by: Maduck Sean

June 3, 2026 7:21 PM
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person *
Maduck Sean

(Last) (First) (Middle)
C/O CORCEPT THERAPEUTICS INCORPORATED
101 REDWOOD SHORES PARKWAY

(Street)
REDWOOD CITY CA 94065

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
CORCEPT THERAPEUTICS INC [ CORT ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
See Remarks
3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 06/01/2026 M 25,000 A $ 8.27 33,977 (1) D
Common Stock 06/01/2026 S (2) 21,069 D $ 70.1068 (3) 12,908 (1) D
Common Stock 06/01/2026 S (2) 3,931 D $ 70.7462 (4) 8,977 (1) D
Common Stock 06/01/2026 A 615 (5) A $ 70.44 (6) 9,592 (1) D
Common Stock 06/01/2026 A 615 (7) A $ 0 10,207 (1) D
Common Stock 06/02/2026 F (8) 452 D $ 70.44 (9) 9,755 (10) D
Common Stock 5,147 I See Footnote (11)
Common Stock 20,570 I See Footnote (12)
Common Stock 40,000 I See Footnote (13)
Common Stock 34,000 I See Footnote (14)
Common Stock 10,000 I See Footnote (15)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock option (right to buy) $ 8.27 06/01/2026 M 25,000 (16) 02/10/2027 Common Stock 25,000 $ 0 141,986 D
Explanation of Responses:
1. Includes 888 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer on June 2, 2025, 228 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer on September 2, 2025, 205 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer on December 1, 2025 and 454 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer March 2, 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.
2. This transaction was made pursuant to a 10b5-1 plan adopted by the Reporting Person on December 8, 2025 in effect at the time of this transaction.
3. Represents the weighted average sale price for the entire number of shares sold. The actual sale prices range from $69.49 to $70.48 per share. Information on the exact number of shares sold at each sale price can be obtained from the Issuer upon request.
4. Represents the weighted average sale price for the entire number of shares sold. The actual sale prices range from $70.49 to $70.95 per share. Information on the exact number of shares sold at each sale price can be obtained from the Issuer upon request.
5. 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 June 1, 2026.
6. In accordance with the Purchase Plan, the price was established based on the closing price on the day of the purchase.
7. 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.
8. 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.
9. The closing price on June 1, 2026 was used to calculate the withholding obligation.
10. Includes 228 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer on September 2, 2025, 205 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer on December 1, 2025 and 454 shares underlying unvested restricted stock awards granted to the Reporting Person by the Issuer March 2, 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.
11. Represents the shares held by Sean and Molly Maduck Living Trust of which the Reporting Person is a co-trustee.
12. Represents the shares held by MMM 2025, LLC of which the Reporting Person is a member and manager.
13. Represents the shares held by SNM 2025 Grantor Retained Annuity Trust of which the Reporting Person is the trustee.
14. Represents the shares held by SNM 2026 Grantor Retained Annuity Trust of which the Reporting Person is the trustee.
15. Represents the shares held by Duckhill Capital, LLC of which the Reporting Person is President and disclaims beneficial ownership of the shares except to the extent of his pecuniary interest therein.
16. Fully exercisable.
Remarks:
President, Corcept Endocrinology
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 Sean Maduck 06/03/2026
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

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