UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON,D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 2, 2026 (June 2, 2026)

SL GREEN REALTY CORP.

(Exact name of registrant as specified in its charter)

Registrants’ telephone number, including area code: (212) 594-2700

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company   ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act  ¨

(a)  SL Green Realty Corp. (the “Company”) held its Annual Meeting of Stockholders (the “Annual Meeting”) on June 2, 2026.

(b)  The Annual Meeting was held for the purpose of: (i) electing eight directors to serve on the Company’s Board of Directors until the Company’s 2027 annual meeting of stockholders and until their successors are duly elected and qualify; (ii) approving, on an advisory basis, the Company’s executive compensation; and (iii) ratifying the appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026. Further information regarding the foregoing proposals is contained in the Company’s Definitive Proxy Statement on Schedule 14A, filed with the Securities and Exchange Commission on April 22, 2026. The total number of shares of common stock entitled to vote at the Annual Meeting was 71,116,386 of which 60,652,639 shares, or approximately 85.3%, were present in person or by proxy.  The results of the meeting are as follows:

Proposal 1

John H. Alschuler, Carol N. Brown, Lauren B. Dillard, Stephen L. Green, Craig M. Hatkoff, Marc Holliday, Peggy Lamb and Andrew W. Mathias were elected, with approximately 90.5%, 99.0%, 94.3%, 95.8%, 91.7%, 96.6%, 92.3% and 90.8%, respectively, of the votes cast voting in favor, as the directors of the Company for a one-year term and until their successors are duly elected and qualify.

Proposal 2

The proposal to approve, on an advisory basis, the Company’s executive compensation was approved, with approximately 70.3% of the votes cast voting in favor.

Proposal 3

The appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026 was ratified, with approximately 99.9% of the votes cast voting in favor.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date:  June 2, 2026