New Listing Registration (Form 8-A12B)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-A

FOR REGISTRATION OF CERTAIN CLASSES OF

SECURITIES PURSUANT TO SECTION 12(b) OR (g) OF

THE SECURITIES EXCHANGE ACT OF 1934

JATT III Acquisition Corp

(Exact name of registrant as specified in its charter)

Cayman Islands		N/A
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification Number)

153 Central Avenue C/O 56 Westfield, NJ		07091
(Address of principal executive offices)		(Zip Code)

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

Title of each class to be so registered		Name of each exchange on which each class is to be registered
Ordinary Shares, par value $0.0001 per share		The Nasdaq Stock Market LLC

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box. ☒

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement or Regulation A offering statement file number to which this form relates: 333-298161

Securities to be registered pursuant to Section 12(g) of the Act: None

N/A

(Title of class)

Item 1. Description of Registrant's Securities to Be Registered.

The securities to be registered hereby are the ordinary shares, par value $0.0001 per share of JATT III Acquisition Corp (the "Company"). The description of the ordinary shares, contained in the section entitled "Description of Securities" in the prospectus included in the Company's Registration Statement on Form S-1 (File No. 333-298161), originally filed with the U.S. Securities and Exchange Commission on August 10, 2026, as amended from time to time (the "Registration Statement"), to which this Form 8-A relates, is incorporated herein by reference. Any form of prospectus or prospectus supplement to the Registration Statement that includes such descriptions and that is subsequently filed is also incorporated by reference herein.

Item 2. Exhibits.

Pursuant to the Instructions as to Exhibits for Form 8-A, no exhibits are required to be filed because no other securities of the Company are registered on The Nasdaq Stock Market LLC and the securities registered hereby are not being registered pursuant to Section 12(g) of the Securities Exchange Act of 1934, as amended.

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.

Date: August 25, 2026	JATT III ACQUISITION CORP
	By:	/s/ Nicholas Fernandez
	Name:	Nicholas Fernandez
	Title:	Chief Financial Officer

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