INSIGHT ENTERPRISES INC — Director's Dealing 2026

Feb 24, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: INSIGHT ENTERPRISES INC (NSIT)
CIK: 0000932696
Period of Report: 2026-02-20

Reporting Person: Crump Rachael Ann Bertrandt (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-20	Common Stock	M	191	—	Acquired	5189	Direct
2026-02-20	Common Stock	F	61	$85.50	Disposed	5128	Direct
2026-02-20	Common Stock	M	255	—	Acquired	5383	Direct
2026-02-20	Common Stock	F	81	$85.50	Disposed	5302	Direct
2026-02-20	Common Stock	M	192	—	Acquired	5494	Direct
2026-02-20	Common Stock	F	61	$85.50	Disposed	5433	Direct
2026-02-20	Common Stock	M	256	—	Acquired	5689	Direct
2026-02-20	Common Stock	F	82	$85.50	Disposed	5607	Direct
2026-02-20	Common Stock	M	121	—	Acquired	5728	Direct
2026-02-20	Common Stock	F	38	$85.50	Disposed	5690	Direct
2026-02-20	Common Stock	M	322	—	Acquired	6012	Direct
2026-02-20	Common Stock	F	103	$85.50	Disposed	5909	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-20	Restricted Stock Units	$	A	2340	Acquired		Common Stock (2340)	Direct
2026-02-20	Restricted Stock Units	$	A	1755	Acquired		Common Stock (1755)	Direct
2026-02-20	Restricted Stock Units	$	M	191	Disposed		Common Stock (191)	Direct
2026-02-20	Restricted Stock Units	$	M	255	Disposed		Common Stock (255)	Direct
2026-02-20	Restricted Stock Units	$	M	192	Disposed		Common Stock (192)	Direct
2026-02-20	Restricted Stock Units	$	M	256	Disposed		Common Stock (256)	Direct
2026-02-20	Restricted Stock Units	$	M	121	Disposed		Common Stock (121)	Direct
2026-02-20	Restricted Stock Units	$	M	322	Disposed		Common Stock (322)	Direct

Footnotes

F1: Insight Enterprises, Inc. has withheld the number of whole shares necessary to satisfy the minimum statutory tax withholding obligations. The value of the vested shares (and the taxable income) is calculated based on the closing price on the vesting date or next preceding trading date in the case that the vesting date is a non-trading date.

F2: Each restricted stock unit represents a contingent right to receive one share of Common Stock of Insight Enterprises, Inc.

F3: The restricted stock units were granted on February 20, 2026 with vesting to occur in three equal annual installments beginning February 20, 2027.

F4: The number of restricted stock units increases or decreases with the Company's performance against specific objectives defined in advance of the grant date, and the restricted stock units will vest in three equal annual installments beginning February 20, 2027.

F5: The number of restricted stock units increases or decreases with the Company's performance against specific objectives defined in advance of the grant date, and the restricted stock units will vest in three equal annual installments beginning February 20, 2024.

F6: The restricted stock units were granted on February 20, 2023 with vesting to occur in three equal annual installments beginning February 20, 2024.

F7: The number of restricted stock units increases or decreases with the Company's performance against specific objectives defined in advance of the grant date, and the restricted stock units will vest in three equal annual installments beginning February 20, 2025.

F8: The restricted stock units were granted on February 20, 2024 with vesting to occur in three equal annual installments beginning February 20, 2025.

F9: The number of restricted stock units increases or decreases with the Company's performance against specific objectives defined in advance of the grant date, and the restricted stock units will vest in three equal annual installments beginning February 20, 2026.

F10: The restricted stock units were granted on February 20, 2025 with vesting to occur in three equal annual installments beginning February 20, 2026.