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Form 8-K

sec.gov

8-K — Rigetti Computing, Inc.

Accession: 0001104659-26-098999

Filed: 2026-08-20

Period: 2026-08-19

CIK: 0001838359

SIC: 7371 (SERVICES-COMPUTER PROGRAMMING SERVICES)

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

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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):

August 19, 2026

RIGETTI

COMPUTING, INC.

(Exact name of registrant as specified in its

charter)

Delaware

001-40140

88-0950636

(State or other jurisdiction

of incorporation)

(Commission

File Number)

(I.R.S. Employer

Identification No.)

775

Heinz Avenue, Berkeley,

California

94710

(Address of principal

executive offices)

(Zip Code)

(510)

210-5550

(Registrant’s telephone number, including

area code)

N/A

(Former name or former address, if changed

since last report.)

Check the appropriate box below if the Form 8-K filing is intended

to simultaneously satisfy the filing obligations 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 communication 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

Symbol(s)

Name of each

exchange

on which registered

Common

Stock, $0.0001 par value per share

RGTI

The Nasdaq

Capital Market

Warrants,

each whole warrant exercisable for one share of Common Stock at an exercise price of $11.50 per share

RGTIW

The Nasdaq

Capital Market

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  x

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 August 19, 2026, Dr. Ray Johnson, a

member of the Board of Directors (the “Board”) of Rigetti Computing, Inc. (the “Company”), notified the

Company of his resignation from the Board, effective August 28, 2026. Dr. Johnson’s decision to resign was not due

to any disagreement with the Company on any matter relating to the Company’s operations, policies or practices. The Company

thanks Dr. Johnson for his commitment and service to the Company.

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.

Date: August 20, 2026

RIGETTI COMPUTING, INC.

By:

/s/ Jeffrey Bertelsen

Jeffrey Bertelsen

Chief Financial Officer

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