REZI · Resideo Technologies, Inc.

Issued under the 2018 Stock Plan for Non-Employee Directors of Resideo Technologies, Inc. in lieu of annual cash retainer fees and to be settled by issuance of shares of Common Stock in a lump sum following termination of service as a director. These stock units are fully vested upon grant.

Issued under the 2018 Stock Plan for Non-Employee Directors of Resideo Technologies, Inc. in lieu of annual cash retainer fees and to be settled by issuance of shares of Common Stock in a lump sum following termination of service as a director. These stock units are fully vested upon grant.

The reported securities represent restricted stock units ("RSUs") which each entitle the Reporting Person to receive a share of Common Stock on the earlier of June 3, 2027 or the date of the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's service through such date. The Reporting Person holds the RSUs for the benefit of, and is obligated to transfer the shares of Common Stock received in settlement thereof to, CD&R Channel Holdings, L.P. or an affiliate thereof ("CDR"), and the Reporting Person therefore disclaims beneficial ownership of the reported securities.

The reported securities represent restricted stock units ("RSUs") which each entitle the Reporting Person to receive a share of Common Stock on the earlier of June 3, 2027 or the date of the Issuer's 2027 annual meeting of stockholders, subject to the Reporting Person's service through such date. The Reporting Person holds the RSUs for the benefit of, and is obligated to transfer the shares of Common Stock received in settlement thereof to, CD&R Channel Holdings, L.P. or an affiliate thereof ("CDR"), and the Reporting Person therefore disclaims beneficial ownership of the reported securities.

The reporting person's Form 3 filed on August 13, 2024 inadvertently understated the reporting person's direct holdings by 100 shares.

Issued under the 2018 Stock Plan for Non-Employee Directors of Resideo Technologies, Inc. in lieu of annual cash retainer fees and to be settled by issuance of shares of Common Stock in a lump sum following termination of service as a director. These stock units are fully vested upon grant.

Issued under the 2018 Stock Plan for Non-Employee Directors of Resideo Technologies, Inc. in lieu of annual cash retainer fees and to be settled by issuance of shares of Common Stock in a lump sum following termination of service as a director. These stock units are fully vested upon grant.

Includes 461 shares acquired pursuant to the Issuer's employee stock purchase plan.

Includes 523 shares acquired pursuant to the Issuer's employee stock purchase plan.

Issued under the 2018 Stock Plan for Non-Employee Directors of Resideo Technologies, Inc. in lieu of annual cash retainer fees and to be settled by issuance of shares of Common Stock in a lump sum following termination of service as a director. These stock units are fully vested upon grant.

Issued under the 2018 Stock Plan for Non-Employee Directors of Resideo Technologies, Inc. in lieu of annual cash retainer fees and to be settled by issuance of shares of Common Stock in a lump sum following termination of service as a director. These stock units are fully vested upon grant.

Consists of shares withheld by the issuer to satisfy the reporting person's exercise price and tax withholding obligation upon the exercise of stock options.