Richard T. Kenney - 02 Dec 2025 Form 4 Insider Report for Sonnet BioTherapeutics Holdings, Inc. (SONN)

Signature
/s/ Richard T. Kenney
Issuer symbol
SONN
Transactions as of
02 Dec 2025
Net transactions value
$0
Form type
4
Filing time
04 Dec 2025, 17:15:35 UTC
Previous filing
15 Jul 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Kenney Richard T Chief Medical Officer 100 OVERLOOK CENTER, SUITE 102, PRINCETON /s/ Richard T. Kenney 04 Dec 2025 0001606653

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SONN Common Stock Disposed to Issuer -9,374 -100% 0 02 Dec 2025 Direct F1, F2, F7
transaction SONN Common Stock Options Exercise +86,505 86,505 02 Dec 2025 Direct F3, F4
transaction SONN Common Stock Tax liability -16,891 -20% 69,614 02 Dec 2025 Direct F3, F4
transaction SONN Common Stock Disposed to Issuer -69,614 -100% 0 02 Dec 2025 Direct F3, F4
transaction SONN Common Stock Options Exercise +163,760 163,760 02 Dec 2025 Direct F6
transaction SONN Common Stock Disposed to Issuer -163,760 -100% 0 02 Dec 2025 Direct F6

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SONN Warrant (Common Stock) Options Exercise -86,505 -100% 0 02 Dec 2025 Common Stock $1.16 Direct F3, F8
transaction SONN Warrant (Common Stock) Disposed to Issuer -320,000 -100% 0 02 Dec 2025 Common Stock $1.25 Direct F5, F8
transaction SONN Series 5 Preferred Stock Options Exercise -200 -100% 0 02 Dec 2025 Common Stock $1.25 Direct F6, F8
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Richard T. Kenney is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id Content
F1 On December 2, 2025, pursuant to the Business Combination Agreement (the "BCA"), dated July 11, 2025, by and among Sonnet BioTherapeutics Holdings, Inc. (the "Company"), Rorschach I LLC ("Rorschach"), Hyperliquid Strategies Inc ("HSI"), TBS Merger Sub Inc ("Company Merger Sub") and Rorschach Merger Sub, LLC ("Rorschach Merger Sub"), Rorschach Merger Sub merged with and into Rorschach with Rorschach surviving the merger as a direct wholly owned subsidiary of HSI and immediately following such merger, Company Merger Sub merged with and into the Company with the Company surviving the merger as a direct wholly owned subsidiary of HSI (the "Company Merger").
F2 (Continued from footnote 1) Includes (i) 8,000 restricted stock units granted on July 11, 2025 which, as a result of the Company Merger, vested at the Effective Time and (ii) 1,374 vested restricted stock units held by the Reporting Person at the Effective Time. Pursuant to the BCA, each restricted stock unit was exchanged at the Effective Time for (i) one-fifth of a share of HSI Common Stock and (ii) one CVR.
F3 On June 30, 2025, the Reporting Person was issued warrants to purchase up to 86,505 shares of Company Common Stock as partial consideration for a convertible note (the "Convertible Note") issued by the Company in favor of the Reporting Person in the principal amount of $200,000. The Convertible Note and warrants cannot be converted or exercised, respectively, to the extent that, after giving effect to such conversion or exercise, the Reporting Person would beneficially own in excess of 4.99% of the then issued and outstanding shares of Company Common Stock. At the Effective Time, the warrants were automatically exercised on a cashless basis pursuant to the terms of the warrants, and exchanged for (i) one-fifth of a share of HSI Common Stock and (ii) one CVR.
F4 (Continued from footnote 3) In connection with the cashless exercise, the Company withheld shares to pay the exercise price, based on a fair market value of $4.764 per share.
F5 On July 14, 2025, the Reporting Person was issued warrants to purchase up to 320,000 shares of Company Common Stock upon the conversion in full of the Convertible Note. The warrants cannot be exercised to the extent that, after giving effect to such exercise, the Reporting Person would beneficially own in excess of 4.99% of the then issued and outstanding shares of Common Stock. Pursuant to the BCA, at the Effective Time, the warrants shall (a) cease to represent a warrant in respect of shares of Company Common Stock and shall be assumed by HSI and automatically converted into a warrant to acquire the same number of shares of HSI Common Stock, subject to the same terms and conditions immediately prior to the Effective Time or (b) entitle the holder of warrant to such other consideration that such holder is entitled to receive pursuant to the terms of such warrant.
F6 On July 14, the Reporting Person was issued 200 shares of Series 5 Preferred Stock, initially convertible at a conversion price of $1.25 per share upon the conversion in full of the Convertible Note. The Series 5 Preferred Stock cannot be converted to the extent that, after giving effect to such conversion, the Reporting Person would beneficially own in excess of 4.99% of the then issued and outstanding shares of Common Stock. The Series 5 Preferred Stock is perpetual and therefore has no expiration date. Pursuant to the BCA, at the Effective Time, each share of Series 5 Preferred Stock was automatically converted into such number of Company Common Stock determined by dividing the stated value of such share of Series 5 Preferred Stock plus all unpaid accrued and accumulated Preferential Dividends on such share (whether or not declared) by the Conversion Price of $1.25, and exchanged for one-fifth of a share of HSI Common Stock.
F7 All amounts reflect the Company's 1:22 reverse stock split effective as of August 31, 2023 and 1:8 reverse stock split effective as of September 30, 2024.
F8 Represents securities previously acquired in transactions exempt under Rule 16b-3.