UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 14, 2025

LADRX CORPORATION

(Exact name of registrant as specified in its charter)

Delaware

000-15327

58-1642740

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

11726 San Vicente Boulevard, Suite 650

Los Angeles, California 90049

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code: (310) 826-5648

Former name or former address, if changed since last report: None

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(g) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, par value $0.001 per share Series B Junior Participating Preferred Stock Purchase Rights		LADX		OTC Markets

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter). Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On April 14, 2025, Joel Caldwell tendered his resignation from the board of directors (the “Board”) of LadRx Corporation (the “Company”) and all Board committees thereto, effective as of April 15, 2025. Mr. Caldwell’s resignation was not in connection with any disagreement with the Company on any matter relating to the Company’s operations, policies or practices.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	LADRX CORPORATION

Date: April 16, 2025	/s/ John Y. Caloz
	John Y. Caloz
	Chief Financial Officer

LadRx Corp 8-K