PC Connection, Inc.

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On October 14, 2026, PC Connection, Inc. (the “Company”) announced that Matthew Zafirovski joined the Company as President and Chief Operating Officer effective October 12, 2026. Prior to joining the Company, Mr. Zafirovski, 41, served as Chief Executive Officer of Tusker, a full-service technology solutions provider, from 2022 to 2026, after previously serving as Chief Operating Officer of Tusker from 2020 to 2022. Mr. Zafirovski has also held leadership roles with Groupon, Apple, McKinsey & Company and Meadowood Associates. He earned an MBA from Northwestern University’s Kellogg School of Management and a bachelor’s degree in public policy from Duke University. In connection with his appointment, the Company entered into an offer letter with Mr. Zafirovski, dated October 8, 2026 (the “Offer Letter”). Mr. Zafirovski’s annual base salary will be $700,000, and he will be eligible to participate in the Company’s Executive Bonus Plan at a basic rate of 100% of base salary, subject to performance-based acceleration tables. Additionally, Mr. Zafirovski will be granted 25,000 restricted stock units entitling him to receive an equal number of shares of the Company’s common stock, such restricted stock units to vest at a rate of 25% per year, beginning with the first anniversary of the date of grant. Pursuant to the terms of the Offer Letter, in the event Mr. Zafirovski’s employment is terminated by the Company for any reason other than death, disability, or cause, he is entitled to receive severance payments in an amount equal to his base salary at the rate in effect on the date of termination (the “Termination Date”) for a period of (i) six months or (ii) until such time as he secures other employment, whichever is shorter. The foregoing description of the Offer Letter is qualified in its entirety by reference to the Offer Letter, which is filed as Exhibit 10.1 to this Current Report on Form 8-K and incorporated herein by reference. In connection with Mr. Zafirovski’s appointment, Timothy J. McGrath ceased serving as President of the Company, effective October 12, 2026. Mr. McGrath continues to serve as the Company’s Chief Executive Officer. On October 12, 2026, PC Connection, Inc. a Delaware corporation (the “Company”), appointed Matt Zafirovski as Chief Operating Officer, effective October 12, 2026.