SORRENTO THERAPEUTICS, INC. Form 8-K (Dec. 20, 2022)

Summary

Current report on Form 8-K for an event dated December 20, 2022, filed by Sorrento Therapeutics, Inc. Under Item 8.01, the report states that on December 20, 2022 the arbitrator in the Cynviloq Arbitration against NantPharma, LLC issued an award granting contractual damages of $125 million to the company, reflecting the value of lost milestone payments for the approval of Cynviloq for the treatment of breast and lung cancers. The report describes other pending actions filed by the company against Dr. Soon-Shiong and entities he controls. One is a derivative action in the Los Angeles Superior Court, in which the report says a jury trial is likely in 2023. Henry Ji signed on December 21, 2022.

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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): December 20, 2022

SORRENTO THERAPEUTICS, INC.

(Exact Name of Registrant as Specified
in its Charter)

Delaware | 001-36150 | 33-0344842
(State or Other Jurisdiction of Incorporation) | (Commission File Number) | (IRS Employer Identification No.)

4955 Directors Place

San Diego , CA 92121

(Address of Principal Executive Offices)
(Zip Code)

Registrant’s telephone number,
including area code: ( 858 ) 203-4100

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 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(b) of the Act:

Title of each class | Trading Symbol | Name of each exchange on which registered
Common Stock, $0.0001 par value | SRNE | 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 8.01. Other Events.

As previously disclosed, Sorrento Therapeutics,
Inc. (the “Company”) has been engaged in arbitration before the American Arbitration Association against NantPharma, LLC (“NantPharma”)
relating to alleged breaches of the May 14, 2015 Stock Sale and Purchase Agreement entered into between the Company and NantPharma related
to the development of the cancer drug Cynviloq™ (the “Cynviloq Arbitration”).

On December 20, 2022, the arbitrator in the Cynviloq
Arbitration issued an award granting contractual damages of $125 million to the Company, reflecting the value of lost milestone payments
for the approval of Cynviloq for the treatment of breast and lung cancers.

The Cynviloq Arbitration is just one of several
pending actions filed by the Company against Dr. Soon-Shiong and entities he controls. As previously disclosed, in April 2019, the
Company filed an action in the Los Angeles Superior Court derivatively on behalf of Immunotherapy NANTibody LLC (“NANTibody”)
against NantCell, Inc. (“NantCell”) and Patrick Soon-Shiong, among others, related to several breaches of the June 11, 2015
Limited Liability Company Agreement for NANTibody entered into between the Company and NantCell (the “Derivative Action”).
The suit alleges breaches of fiduciary duties and seeks, inter alia, a declaration that the Assignment Agreement entered into on July
2, 2017, between NantPharma and NANTibody is void and an equitable unwinding of the Assignment Agreement. The suit calls for the
restoration of $90.05 million to the NANTibody capital account, thereby restoring the Company’s equity method investment in NANTibody
to its invested amount as of June 30, 2017 of $40.0 million. The parties are currently engaged in discovery in the Derivative Action,
with a jury trial likely in 2023.

In 2020, the Company additionally filed a legal
action against Patrick Soon-Shiong in Los Angeles Superior Court, asserting claims for fraudulent inducement and common law fraud alleging
that, among other things, Dr. Soon-Shiong acquired the drug Cynviloq for the purpose of halting its progression to the market. The
Los Angeles Superior Court claims against Dr. Soon-Shiong had been stayed pending resolution of the Cynviloq Arbitration, and the Company
expects that they will now resume. The Company will have the right to a jury trial to pursue these claims.

Item
9.01. Financial Statements and Exhibits.

(d) Exhibit.

104 | Cover Page Interactive Data File, formatted in Inline Extensible Business Reporting Language (iXBRL).

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.

SORRENTO THERAPEUTICS, INC.
Date: December 21, 2022 | By: | /s/ Henry Ji, Ph.D.
Name: Henry Ji, Ph.D.
Title: Chairman of the Board, President and Chief Executive Officer

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