Corcept officer plans sale of 10,000 shares

A company officer filed a Rule 144 notice to sell 10,000 CORT shares from a stock option exercise, plus disclosed a smaller sale in the prior three months.

Available on EDGAR 09/14/2026 - 01:59 PM EDT Accepted by SEC EDGAR 09/14/2026 - 01:58 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

CORCEPT THERAPEUTICS INC (CORT) received a Rule 144 notice from officer Joseph Douglas Lyon regarding a planned sale of company stock. The notice reports an intended sale of 10,000 shares of common stock, to be issued through a stock option exercise for cash on September 14, 2026, with sales through broker Stifel Nicolaus on NASDAQ.

The filing also reports that over the prior three months, Joseph D. Lyon sold 1,540 shares of common stock on August 3, 2026. Rule 144 requires this disclosure of planned and recent sales by affiliates of the issuer.

Key Figures

Planned shares to be sold: 10,000 shares Shares underlying stock option exercise: 10,000 shares Shares sold in past 3 months: 1,540 shares +2 more

5 metrics

Planned shares to be sold 10,000 shares Common stock intended for sale under Rule 144 on September 14, 2026

Shares underlying stock option exercise 10,000 shares Stock Option Exercise for cash dated September 14, 2026

Shares sold in past 3 months 1,540 shares Common stock sold by Joseph D. Lyon on August 3, 2026

Planned sale date September 14, 2026 Date listed for the 10,000-share stock option exercise and planned sale

Prior sale date August 3, 2026 Date of 1,540-share sale disclosed for the past 3 months

Key Terms

Rule 144, Stock Option Exercise, securities to be sold

3 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Stock Option Exercise financial

"Common | 09/14/2026 | Stock Option Exercise | Issuer"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

securities to be sold regulatory

"Name of Person for Whose Account the Securities are To Be Sold"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the Form 144 filing disclose for CORCEPT THERAPEUTICS INC (CORT)?

The Form 144 discloses that officer Joseph Douglas Lyon intends to sell 10,000 shares of CORCEPT THERAPEUTICS INC common stock, to be issued via a stock option exercise for cash on September 14, 2026, with transactions through broker Stifel Nicolaus on NASDAQ.

How many CORT shares are planned to be sold under this Form 144?

The filing reports an intended sale of 10,000 shares of common stock of CORCEPT THERAPEUTICS INC. These shares are tied to a stock option exercise and are expected to be sold on September 14, 2026, subject to Rule 144 conditions.

What recent CORT stock sales by Joseph D. Lyon are disclosed in the Form 144?

The notice states that 1,540 shares of CORCEPT THERAPEUTICS INC common stock were sold by Joseph D. Lyon on August 3, 2026. Rule 144 requires disclosure of such securities sold during the past 3 months when filing a new sale notice.

How will the 10,000 CORT shares in this Form 144 be obtained for sale?

The 10,000 shares are associated with a Stock Option Exercise reported for September 14, 2026. The Form 144 indicates the exercise will be paid in cash, after which the resulting shares of common stock may be sold under Rule 144.

Who is the broker for the planned CORT stock sale in this Form 144?

The filing lists Stifel Nicolaus, located in St. Louis, Missouri, as the broker for the 10,000-share planned sale of CORCEPT THERAPEUTICS INC common stock, which is listed on NASDAQ according to the Form 144 disclosure.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001817838
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	CORCEPT THERAPEUTICS INC
SEC File Number	000-50679
Address of Issuer	101 REDWOOD SHORES PARKWAY REDWOOD CITY CALIFORNIA 94065
Phone	650.688.8803
Name of Person for Whose Account the Securities are To Be Sold	Lyon Joseph Douglas
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Stifel Nicholas 501 N Broadway St Louis MO 63102	10000	1134423.74	108100000	09/14/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	09/14/2026	Stock Option Exercise	Issuer			10000	09/14/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Joseph D. Lyon 101 Redwood Shores Parkway Redwood City CA 94065	Common	08/03/2026	1540	175725.77

144: Remarks and Signature

Remarks
Date of Notice	09/14/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/10/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	Joseph D. Lyon
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)