Debt

3 Months Ended

Mar. 31, 2026

Debt Disclosure [Abstract]

Debt

Debt

The Company’s total outstanding borrowings are summarized in the table below (in thousands).

	March 31,		December 31,
Description	2026		2025
2024 Credit Agreement - Revolving credit facility (1)	$	—	$	—
4.50% Senior Notes due 2028 (“2028 Notes”)	800,000		800,000
3.63% Senior Notes due 2029 (“2029 Notes”)	600,000		600,000
3.75% Senior Notes due 2030 (“2030 Notes”)	800,000		800,000
4.95% Senior Notes due 2031 (“2031 Notes”)	350,000		350,000
5.60% Senior Notes due 2035 (“2035 Notes”)	450,000		450,000
Other (2)	5,000		5,000
Principal amount outstanding (3)	3,005,000		3,005,000
Less: Deferred financing fees and unamortized discounts (4)	(22,029)		(23,326)
Net balance sheet carrying amount	$	2,982,971	$	2,981,674

(1)The Company had approximately $1.0 billion of available borrowing capacity on the 2024 Credit Agreement revolver (not including the expansion feature) as of March 31, 2026.

(2)Consists of a State of Connecticut economic development loan originated in 2019 with a 10-year maturity and bears interest at a fixed rate of 1.75%. The Company repaid the loan in April 2026.

(3)The weighted average annual effective rate on the Company’s outstanding debt for the three months ended March 31, 2026, was 4.34%.

(4)Deferred financing fees and unamortized discounts are being amortized to Interest expense, net over the term of the related debt obligation.

2024 Credit Agreement

On March 26, 2024, the Company entered into a Credit Agreement (the “2024 Credit Agreement”) among the Company, as borrower, the lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent (the “Administrative Agent”).

The 2024 Credit Agreement provides for a $1.0 billion senior unsecured five-year revolving facility. The facility may be increased, at the Company’s option and under certain conditions, by up to an additional $750 million in the aggregate. The facility may be used for revolving loans, and up to $75.0 million may be used for letters of credit. The revolving loans may be borrowed, repaid and re-borrowed until March 26, 2029, at which time all amounts borrowed must be repaid, subject to customary extension mechanics. The 2024 Credit Agreement contains certain customary restrictive loan covenants, including, among others, a financial covenant requiring a maximum leverage ratio and covenants limiting the Company’s ability to grant liens, make acquisitions, be acquired and the ability of the Company’s subsidiaries to incur indebtedness. The Company was in compliance with all financial covenants as of March 31, 2026.

Interest under the revolving facility accrues, at a variable rate, based on, at our option, (i) the Secured Overnight Funding Rate (“SOFR”) plus a credit spread adjustment of 0.10% or (ii) an alternate base rate (“Base Rate”) plus, in each case, an applicable margin, and is payable monthly. The applicable margin ranges between 1.125% and 1.75%, depending on the lower rate determined by either the Company’s leverage ratio or the credit rating of the Company’s senior unsecured debt. At March 31, 2026, the applicable all-in margin on the revolving facility was 1.48% (including the credit spread adjustment). The contractual annualized interest rate as of March 31, 2026 on the 2024 Credit Agreement was 5.23%, which consisted of Term Secured Overnight Financing Rate (“SOFR”) of 3.75% plus a margin of 1.48%. The commitment fee payable on the unused portion of the facility is equal to between 0.125% and 0.25% based on utilization of the facility. The Company has also agreed to pay customary letter of credit fees.

2031 and 2035 Notes

On November 20, 2025, the Company completed the public offering and issuance of $350.0 million aggregate principal amount of its 4.950% Senior Notes due 2031 and $450.0 million aggregate principal amount of its 5.600% Senior Notes due 2035 (together, the “Notes”). The 2031 Notes were issued at an issue price of 99.970% and the 2035 Notes were issued at an issue price of 99.992%. The Notes were offered and sold pursuant to Gartner’s automatic shelf registration statement on Form S-3 (File No. 333-291447) and the prospectus included therein, filed with the Securities and Exchange Commission on November 12, 2025, and supplemented by the prospectus supplement dated November 13, 2025.

The Company received approximately $799.9 million in net proceeds, after discounts and before underwriting fees and offering expenses, from the sale of the Notes. The Company used a portion of the net proceeds from the offering of the notes to repay the $274.4 million then outstanding under the 2024 Credit Agreement and to pay related fees and expenses, with remaining amounts to be used for general corporate purposes, which may include, without limitation, potential repurchases of its common stock.

2029 Notes

On June 18, 2021, the Company issued $600.0 million aggregate principal amount of 3.625% Senior Notes due 2029. The 2029 Notes were issued at an issue price of 100.0% and bear interest at a rate of 3.625% per annum. Interest on the 2029 Notes is payable on June 15 and December 15 of each year, beginning on December 15, 2021. The 2029 Notes will mature on June 15, 2029. The Company may redeem some or all of the 2029 Notes at any time on or after June 15, 2024 for cash at the redemption prices set forth in the 2029 Notes Indenture, plus accrued and unpaid interest to, but excluding, the redemption date.

2030 Notes

On September 28, 2020, the Company issued $800.0 million aggregate principal amount of 3.75% Senior Notes due 2030. The 2030 Notes were issued at an issue price of 100.0% and bear interest at a rate of 3.75% per annum. Interest on the 2030 Notes is payable on April 1 and October 1 of each year, beginning on April 1, 2021. The 2030 Notes will mature on October 1, 2030.

The Company may redeem some or all of the 2030 Notes at any time on or after October 1, 2025 for cash at the redemption prices set forth in the 2030 Note Indenture, plus accrued and unpaid interest to, but excluding, the redemption date. Prior to October 1, 2025, the Company may redeem up to 40% of the aggregate principal amount of the 2030 Notes in connection with certain equity offerings, or some or all of the 2030 Notes with a “make-whole” premium, in each case subject to the terms set forth in the 2030 Note Indenture.

2028 Notes

On June 22, 2020, the Company issued $800.0 million aggregate principal amount of 4.50% Senior Notes due 2028. The 2028 Notes were issued at an issue price of 100.0% and bear interest at a rate of 4.50% per annum. Interest on the 2028 Notes is payable on January 1 and July 1 of each year, beginning on January 1, 2021. The 2028 Notes will mature on July 1, 2028.

The Company may redeem some or all of the 2028 Notes at any time on or after July 1, 2023 for cash at the redemption prices set forth in the 2028 Note Indenture, plus accrued and unpaid interest to, but excluding, the redemption date.