Gartner awards director Eileen Serra 149 stock-linked units

The director’s CSEs convert into Gartner common stock when continuous service as a director ends, or as otherwise provided in the Long-Term Incentive Plan.

Rhea-AI Filing Summary

Gartner Inc. director Eileen Serra received 149 Common Stock Equivalents (CSEs) as compensation on October 1, 2026, at a reported price of $192.80 per CSE. Her reported balance after the award was 3,511 CSEs. The CSEs were granted under Gartner’s Long-Term Incentive Plan for service as an outside director and convert into Gartner common stock when her continuous director status ends, or as otherwise provided in the plan.

Insider Trade Summary

Grant/Award: 149 shares

Grant/Award 1 txn

Insider Serra Eileen

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock Equivalents (CSE) F1	149	$192.80	$29K

Holdings After Transaction: Common Stock Equivalents (CSE) — 3,511 contracts (Direct)

Footnotes (1)

1. F1. These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Gartner, Inc. Long-Term Incentive Plan ("LTIP"). The CSEs convert into Gartner common stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the LTIP.

Key Figures

Common Stock Equivalents awarded: 149 CSEs Reported price per CSE: $192.80 per CSE CSEs after award: 3,511 CSEs

3 metrics

Common Stock Equivalents awarded 149 CSEs Awarded October 1, 2026

Reported price per CSE $192.80 per CSE October 1, 2026 award

CSEs after award 3,511 CSEs Reported following the October 1, 2026 award

Key Terms

Common Stock Equivalents, Long-Term Incentive Plan, continuous status as a director

3 terms

Common Stock Equivalents financial

"These are Common Stock Equivalents ("CSEs") received as compensation"

Common stock equivalents are financial instruments that can be converted into common shares or have a similar effect on a company's stock ownership, such as stock options or convertible bonds. They matter to investors because they can increase the total number of shares outstanding, potentially diluting existing ownership and affecting the company's stock value. Recognizing these equivalents helps investors understand the true potential for future share issuance and company ownership structure.

Long-Term Incentive Plan financial

"granted under the Gartner, Inc. Long-Term Incentive Plan"

A long-term incentive plan is a company program that pays executives or employees with stock, options, or cash tied to multi-year performance goals, where the rewards become theirs only after meeting conditions over time. Think of it as a delayed bonus or retirement-style reward that aligns employees’ interests with shareholders by encouraging them to boost long-term value; investors watch these plans because they affect pay costs, share dilution and management incentives.

continuous status as a director technical

"the outside director's continuous status as a director terminates"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many CSEs did IT director Eileen Serra receive?

Eileen Serra received 149 Common Stock Equivalents on October 1, 2026; her reported balance after the award was 3,511 CSEs.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/05/2026 - 04:28 PM Accepted by SEC EDGAR 10/05/2026 - 04:27 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Serra Eileen

(Last) (First) (Middle)

56 TOP GALLANT RD.

(Street)

STAMFORD CONNECTICUT 06902

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
GARTNER INC [ IT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/01/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Common Stock Equivalents (CSE)	$0	10/01/2026		A		149		(1)	(1)	Common Stock	149	$192.8	3,511	D

Explanation of Responses:

1. These are Common Stock Equivalents ("CSEs") received as compensation for service as an outside director of Gartner, Inc. They were granted under the Gartner, Inc. Long-Term Incentive Plan ("LTIP"). The CSEs convert into Gartner common stock on the date the outside director's continuous status as a director terminates, or as otherwise provided in the LTIP.

	/s/ Kevin Tang for Eileen Serra	10/05/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)