GRIFFON CORP

Rule 10b5-1 Trading Plans

During the fiscal quarter ended March 31, 2024, none of our directors or executive officers adopted orterminated any contract, instruction or written plan for the purchase or sale of our securities to satisfy the affirmative defense conditions of Rule 10b5-1(c) or any “non-Rule 10b5-1 trading arrangement.”

Amendment and Restatement of Employment Agreements and Severance Agreements with Named Executive Officers

Our Compensation Committee undertook a comprehensive review of our employment agreements with Ronald J. Kramer (our Chief Executive Officer and Chairman of the Board) and Robert F. Mehmel (our President and Chief Operating Officer), and our severance arrangements with Brian G. Harris (our Senior Vice President and Chief Financial Officer) and Seth L. Kaplan (our Senior Vice President, General Counsel and Secretary) (collectively, the “NEO Agreements”). Following this review, each NEO Agreement was amended and restated in its entirety. The material changes are summarized below.

The definition of “Change in Control” in each NEO Agreement was amended to align the definition across the NEO Agreements, such that “Change in Control” includes the following events: (i) the acquisition of 30% or more of Griffon’s common stock; (ii) a change in a majority of the current Griffon Board of Directors (the “Incumbent Board”) that is not approved by a majority of the Incumbent Board; (iii) completion of a business combination involving Griffon or a sale of all or substantially all of Griffon’s assets, unless certain conditions are satisfied; or (iv)approval by the stockholders of Griffon of a complete liquidation or dissolution of Griffon. The Griffon Corporation Amended and Restated 2016 Equity Incentive Plan (the “Equity Plan”) was also amended to incorporate the foregoing definition, except that “20%” is used in lieu of “30%” to align with the applicable threshold in the Equity Plan prior to this amendment.

Other material changes to the amended and restated NEO Agreements include: (i) clarifying that “Good Reason” includes any material diminution in status, office, title or reporting requirement, whether or not occurring solely as a result of Griffon ceasing to be a publicly traded entity or a Change in Control; (ii) providing that severance following a Change in Control will not be reduced by a decrease in the executive’s base salary or bonus after a Change in Control; (iii) requiring that any determination of Cause following a Change in Control must be approved by two-thirds of the applicable board of directors, after the executive has had a chance to address the board (with counsel present); and (iv) for the NEO Agreements with Messrs. Mehmel, Harris and Kaplan, removing Griffon’s unilateral right to terminate the NEO Agreement, upon a prescribed period of notice, without payment of severance.

The amended and restated NEO Agreements have also been revised to reflect the current structure of the cash bonus program in which the NEOs participate (the bonus program originally consisted of solely an annual cash bonus but was modified after the original NEO Agreements were in place to be split into an annual cash bonus and a long-term cash bonus), remove irrelevant legacy provisions, and incorporate prior amendments.

The foregoing is only a summary of the changes incorporated into the amended and restated NEO Agreements and the Equity Plan. This summary is qualified in its entirety by the actual amended and restated NEO Agreements and Amendment No. 2 to the Equity Plan, each of which is filed as an exhibit to this Quarterly Report on Form 10-Q.