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): July 14, 2026

Disciplined Growth Acquisition Corporation

(Exact name of registrant as specified in its charter)

169 Rockaway Avenue

Garden City, New York 11530

(Address of principal executive offices, including zip code)

Registrant’s telephone number, including area code: (516) 550-4122

Not Applicable

(Former name or former address, if changed since last report)

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

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:

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 8.01. Other Events.

Separate Trading of Class A Ordinary Shares and Rights

On July 14, 2026, Disciplined Growth Acquisition Corporation (the “Company”) announced that, commencing on July 17, 2026, the holders of the units issued in its initial public offering (the “Units”), each Unit consisting of one Class A ordinary share of the Company, par value $0.0001 per share (the “Class A Ordinary Shares”), and one right (“Right”) to receive one-fourth (1/4) of a Class A Ordinary Share upon the consummation of an initial business combination, may elect to separately trade the Class A Ordinary Shares and the Rights included in the Units. No fractional Rights will be issued upon separation of the Units and only whole Rights will trade. Any Units not separated will continue to trade on the New York Stock Exchange under the symbol “DGACU.” The Class A Ordinary Shares and the Rights are expected to trade on the New York Stock Exchange under the symbols “DGAC” and “DGACR,” respectively. Holders of Units will need to have their brokers contact Odyssey Transfer and Trust Company, the Company’s transfer agent, in order to separate the Units into Class A Ordinary Shares and Rights.

Item 9.01. Financial Statements and Exhibits.

SIGNATURE

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.