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): December 2, 2021

GigCapital4, Inc.

(Exact Name of Registrant as Specified in Charter)

Delaware	001-40031	85-4164597
(State or Other Jurisdiction of Incorporation or Organization)	(Commission File Number)	(IRS Employer Identification No.)

1731 Embarcadero Rd., Suite 200

Palo Alto, CA 94303

(650) 276-7040

(Address of principal executive offices, including Zip Code)

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 (see General Instruction A.2. below):

☐ 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(b) of the Act:

Title of each class	Trading Symbols	Name of each exchange on which registered
Units, each consisting of one share of common stock, $0.0001 par value, and one-third of one redeemable warrant	GIGGU	The Nasdaq Stock Market LLC
Common stock, $0.0001 par value	GIG	The Nasdaq Stock Market LLC
Redeemable warrants, each full warrant exercisable for one share of common stock at an exercise price of $11.50 per share	GIGGW	The Nasdaq Stock Market LLC

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; Compensation Arrangements of Certain Officers

As previously disclosed by GigCapital4, Inc., a Delaware corporation (“GigCapital4”) under Item 8.01 of its Current Report on Form 8-K filed on June 4, 2021, GigCapital4 entered into an Agreement and Plan of Merger (the “Merger Agreement”), dated June 4, 2021, with GigCapital4 Merger Sub Corporation, a Delaware corporation and wholly owned subsidiary of GigCapital4, BigBear.ai Holdings, LLC, a Delaware limited liability company (“BigBear.ai”), and BBAI Ultimate Holdings, LLC, a Delaware limited liability company (the “Business Combination”). The Merger Agreement was subsequently amended by the parties on August 6, 2021 and November 29, 2021.

On December 2, 2021 the board of directors of GigCapital4 approved the payment of a one-time advisory fee in the amount of $20,000 to be paid to Mr. Brad Weightman, the Chief Financial Officer of GigCapital4, upon the closing of the Business Combination in connection with certain activities on behalf of GigCapital4 including Mr. Weightman’s extraordinary administrative and analytical service in assisting GigCapital4 in closing the Business Combination.

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.

Dated: December 6, 2021

By:	/s/ Dr. Raluca Dinu
Name:	Dr. Raluca Dinu
Title:	President and Chief Executive Officer of GigCapital4, Inc.