Wartinbee William James III 4

4 · GARTNER INC · Filed Feb 10, 2026

AI-generated summary of this filing

Updated Feb 10, 2026

Gartner (IT) EVP William Wartinbee Receives RSUs; Tax Withholding

What Happened

William James Wartinbee III, EVP, Global Sales & Service Operations at Gartner, had RSUs vest in early February 2026. A total of 820 shares were released to him (346 shares on Feb 6, 2026 and 474 shares on Feb 8, 2026) at no cash exercise price (RSUs convert one-for-one). To satisfy withholding obligations, 303 of those shares were surrendered/withheld (129 on Feb 6 and 174 on Feb 8) at an indicated per-share value of $156.33, totaling $47,368 withheld.
This is not an open‑market purchase or sale by the insider — it is the release/settlement of previously granted RSUs, with some shares withheld to cover taxes.

Key Details

Transaction dates and prices:
- Feb 6, 2026: 346 RSU shares released (acquired at $0); 129 shares withheld for taxes at $156.33 each = $20,167.
- Feb 8, 2026: 474 RSU shares released (acquired at $0); 174 shares withheld for taxes at $156.33 each = $27,201.
Net effect: 820 shares vested, 303 shares withheld; net increase to holdings = 517 shares.
Footnotes:
- F1: 346 shares = 2026 installment of performance-based RSUs awarded Feb 6, 2025 (vest in 4 equal annual installments beginning Feb 6, 2026).
- F3: 474 shares = 2026 installment of time-based RSUs awarded Feb 8, 2025 (vest in 4 equal annual installments beginning Feb 8, 2025).
- F2: 303 shares were withheld to cover income/payroll taxes.
Filing: Form shows transactions dated Feb 6 and Feb 8, 2026 and was filed with accession date Feb 10, 2026. (Check the filing for any timeliness flags.)

Context

These entries reflect vesting and conversion of RSUs into common stock (derivative conversion), not an open-market buy or discretionary sale. The withholding of shares to pay taxes is standard practice and is recorded as a disposition (code F) even though it’s a tax payment, not a market sale.
For retail investors, RSU vesting is routine compensation; it increases insider share count when not all vested shares are withheld. This filing shows a net increase of 517 shares for the insider.

Form 4

Period: 2026-02-06

EVP, Global Sales&Serv Ops

Transactions

Exercise/Conversion
Common Stock
[F1]
2026-02-06+346→ 8,265 total
Tax Payment
Common Stock
[F2]
2026-02-06$156.33/sh−129$20,167→ 8,136 total
Exercise/Conversion
Common Stock
[F3]
2026-02-08+474→ 8,610 total
Tax Payment
Common Stock
[F2]
2026-02-08$156.33/sh−174$27,201→ 8,436 total
Exercise/Conversion
Restricted Stock Units
[F1]
2026-02-06−346→ 1,035 total
Exercise: $0.00→ Common Stock (346 underlying)
Exercise/Conversion
Restricted Stock Units
[F3]
2026-02-08−474→ 947 total
Exercise: $0.00→ Common Stock (474 underlying)

Footnotes (3)

[F1]Represents shares acquired upon the release of the performance-based RSUs awarded on February 6, 2025 and certified in February 2026. These performance-based RSUs convert into common stock on a one-for-one basis and vest in four substantially equal annual installments commencing on February 6, 2026. This represents the 2026 installment.
[F2]Represents shares withheld for the payment of applicable income and payroll withholding taxes.
[F3]Represents shares acquired upon the release of RSUs, which convert into common stock on a one-for-one basis. These RSUs vest in four substantially equal annual installments commencing on February 8, 2025. This represents the 2026 installment.

Signature

/s/ Kevin Tang for William James Wartinbee III|2026-02-10

1 file