Gartner director Diana Sue Ferguson acquires 139 shares

Q: How many Gartner (IT) CSEs did Diana Sue Ferguson receive?

Diana Sue Ferguson received 139 Common Stock Equivalents as compensation for outside-director service on October 1, 2026, under the Gartner Long-Term Incentive Plan.

The CSEs convert into Gartner common stock when the outside director's continuous status as a director terminates, or as otherwise provided in the Long-Term Incentive Plan.

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Rhea-AI Filing Summary

Gartner Inc. (IT) director Diana Sue Ferguson acquired 139 Common Stock Equivalents (CSEs) as compensation for outside-director service on October 1, 2026, under the Gartner Long-Term Incentive Plan. She elected an immediate distribution: the reported transactions include disposition of 139 CSEs and acquisition of 139 common shares. Her reported direct common-stock holdings afterward were 2,946 shares. The award row reports $192.80 per CSE.

Insider Trade Summary

3 transactions reported

Mixed 3 txns

Insider FERGUSON DIANA SUE

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock Equivalents (CSE) ^F2	139	$192.80	$27K
Other	Common Stock Equivalents (CSE) ^{F1, F2}	139	$0.00	$0.00
Other	Common Stock ^F1	139	$0.00	$0.00

Holdings After Transaction: Common Stock Equivalents (CSE) — 81 contracts (Direct); Common Stock — 2,946 shares (Direct)

Footnotes (2)

F1. This reporting person has elected to receive an immediate distribution of the CSE shares.
F2. 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

CSEs awarded: 139 Common Stock Equivalents Reported amount per CSE: $192.80 per CSE Common shares acquired: 139 common shares +1 more

4 metrics

CSEs awarded 139 Common Stock Equivalents Compensation award dated October 1, 2026

Reported amount per CSE $192.80 per CSE Compensation award dated October 1, 2026

Common shares acquired 139 common shares Immediate distribution dated October 1, 2026

Direct common shares following transaction 2,946 shares Reported after the October 1, 2026 transaction

Key Terms

Common Stock Equivalents, Long-Term Incentive Plan, immediate distribution

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.

immediate distribution financial

"elected to receive an immediate distribution of the CSE shares"

FAQ

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

How many Gartner (IT) CSEs did Diana Sue Ferguson receive?

Diana Sue Ferguson received 139 Common Stock Equivalents as compensation for outside-director service on October 1, 2026, under the Gartner Long-Term Incentive Plan.

When do Gartner (IT) director CSEs convert into common stock?

The CSEs convert into Gartner common stock when the outside director's continuous status as a director terminates, or as otherwise provided in the Long-Term Incentive Plan.

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

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Available on EDGAR 10/05/2026 - 04:35 PM Accepted by SEC EDGAR 10/05/2026 - 04:34 PM

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^*

FERGUSON DIANA SUE

(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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/01/2026		J⁽¹⁾		139	A	$0	2,946	D

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock Equivalents (CSE)	$0	10/01/2026		A		139		⁽²⁾	⁽²⁾	Common Stock	139	$192.8	220	D
Common Stock Equivalents (CSE)	$0	10/01/2026		J⁽¹⁾			139	⁽²⁾	⁽²⁾	Common Stock	139	$0	81	D

Explanation of Responses:

1. This reporting person has elected to receive an immediate distribution of the CSE shares.

2. 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 Diana S. Ferguson	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)

Source: View Original Filing on SEC EDGAR