SLG

slg-20260722

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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):

July 22, 2026

SL GREEN REALTY CORP.

(Exact name of registrant as specified in its charter)

Maryland

(State or other jurisdiction of incorporation or organization)

1-1319913-3956775

(Commission File Number)       (I.R.S. Employer Identification No.)

One Vanderbilt Avenue                10017

New York,New York             (Zip Code)

(Address of principal executive offices)

(212) 594-2700

(Registrant's telephone number, including area code)

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:

RegistrantTrading SymbolTitle of Each ClassName of Each Exchange on Which Registered

SL Green Realty Corp.SLGCommon Stock, $0.01 par valueNew York Stock Exchange

SL Green Realty Corp.SLG.PRI6.500% Series I Cumulative Redeemable Preferred Stock, $0.01 par valueNew York Stock Exchange

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 [ ]

Item 2.02.    Results of Operations and Financial Condition

Following the issuance of a press release on July 22, 2026 announcing SL Green Realty Corp.’s, or the Company, results for the quarter ended June 30, 2026, the Company has made available on its website supplemental information regarding the Company’s operations that is too voluminous for a press release. The Company is attaching the press release as Exhibit 99.1 and the supplemental package as Exhibit 99.2 to this Current Report on Form 8-K.

The information (including Exhibits 99.1 and 99.2) being furnished pursuant to this “Item 2.02. Results of Operations and Financial Condition” shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section and shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Act, or the Exchange Act regardless of any general incorporation language in such filing.

Item 7.01.    Regulation FD Disclosure

As discussed in Item 2.02 above, on July 22, 2026, the Company issued a press release announcing its results for the quarter ended June 30, 2026, and that it is revising its net (loss) income guidance range of $(0.27) to $0.03 per share (diluted) for the year ending December 31, 2026 to $0.20 to $0.50 of net income per share (diluted), and revising its Nareit defined Funds From Operations ("FFO") guidance range of $4.40 to $4.70 per share (diluted) for the year ending December 31, 2026 to $5.60 to $5.90 of FFO per share (diluted).

The following table reconciles the estimated earnings per share (diluted) to FFO per share (diluted) range for the year ending December 31, 2026:

Year Ending

December 31,

20262026

Net income per share attributable to SL Green stockholders (diluted)$0.20 $0.50

Add:

Depreciation and amortization3.53 3.53

Joint ventures depreciation and noncontrolling interests adjustments3.23 3.23

Net income attributable to noncontrolling interests0.28 0.28

Depreciable real estate reserves and impairments0.46 0.46

Less:

Gain on sale of real estate, net1.09 1.09

Equity in net gain on sale of interest in unconsolidated joint venture / real estate0.95 0.95

Purchase price and other fair value adjustments(0.02)(0.02)

Depreciation on non-real estate assets0.08 0.08

Funds From Operations per share attributable to SL Green common stockholders and noncontrolling interests (diluted)$5.60 $5.90

The information being furnished pursuant to this “Item 7.01. Regulation FD Disclosure” shall not be deemed to be “filed” for the pu

slg-20260415

0001040971false00010409712026-04-162026-04-1600010409712026-01-282026-01-280001040971us-gaap:CommonStockMember2026-04-162026-04-160001040971us-gaap:PreferredStockMember2026-04-162026-04-16

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):

April 15, 2026

SL GREEN REALTY CORP.

(Exact name of registrant as specified in its charter)

Maryland

(State or other jurisdiction of incorporation or organization)

1-1319913-3956775

(Commission File Number)       (I.R.S. Employer Identification No.)

One Vanderbilt Avenue                10017

New York,New York             (Zip Code)

(Address of principal executive offices)

(212) 594-2700

(Registrant's telephone number, including area code)

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:

RegistrantTrading SymbolTitle of Each ClassName of Each Exchange on Which Registered

SL Green Realty Corp.SLGCommon Stock, $0.01 par valueNew York Stock Exchange

SL Green Realty Corp.SLG.PRI6.500% Series I Cumulative Redeemable Preferred Stock, $0.01 par valueNew York Stock Exchange

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 [ ]

Item 2.02.    Results of Operations and Financial Condition

Following the issuance of a press release on April 15, 2026 announcing SL Green Realty Corp.’s, or the Company, results for the quarter ended March 31, 2026, the Company has made available on its website supplemental information regarding the Company’s operations that is too voluminous for a press release. The Company is attaching the press release as Exhibit 99.1 and the supplemental package as Exhibit 99.2 to this Current Report on Form 8-K.

The information (including Exhibits 99.1 and 99.2) being furnished pursuant to this “Item 2.02. Results of Operations and Financial Condition” shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section and shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Act, or the Exchange Act regardless of any general incorporation language in such filing.

Item 7.01.    Regulation FD Disclosure

As discussed in Item 2.02 above, on April 15, 2026, the Company issued a press release announcing its results for the quarter ended March 31, 2026.

The information being furnished pursuant to this “Item 7.01. Regulation FD Disclosure” shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section and shall not be deemed to be incorporated by reference into any filing under the Securities Act or the Exchange Act regardless of any general incorporation language in such filing. This information will not be deemed an admission as to the materiality of such information that is required to be disclosed solely by Regulation FD.

Item 9.01.    Financial Statements and Exhibits

(d)     Exhibits

99.1    Press release regarding results for the quarter ended March 31, 2026.

99.2    Supplemental package.

Non-GAAP Supplemental Financial Measures

Funds from Operations (FFO)

FFO is a widely recognized non-GAAP financial measure of REIT performance. The Company computes FFO in accordance with standards established by the National Association of Real Estate Investment Trusts, or Nareit, which may not be comparable to FFO reported by other REITs that do not compute FFO in accordance with the Nareit definition, or that interpret the Nareit definition differently than the Company does. The revised White Paper on FFO approved by the Board of Governors of Nareit in April 2002, and subsequently amended in December 2018, defines FFO as net incom

slg-20260128

0001040971false00010409712026-01-282026-01-280001040971us-gaap:CommonStockMember2026-01-282026-01-280001040971us-gaap:PreferredStockMember2026-01-282026-01-28

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):

January 28, 2026

SL GREEN REALTY CORP.

(Exact name of registrant as specified in its charter)

Maryland

(State or other jurisdiction of incorporation or organization)

1-1319913-3956775

(Commission File Number)       (I.R.S. Employer Identification No.)

One Vanderbilt Avenue                10017

New York,New York             (Zip Code)

(Address of principal executive offices)

(212) 594-2700

(Registrant's telephone number, including area code)

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:

RegistrantTrading SymbolTitle of Each ClassName of Each Exchange on Which Registered

SL Green Realty Corp.SLGCommon Stock, $0.01 par valueNew York Stock Exchange

SL Green Realty Corp.SLG.PRI6.500% Series I Cumulative Redeemable Preferred Stock, $0.01 par valueNew York Stock Exchange

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 [ ]

Item 2.02.    Results of Operations and Financial Condition

Following the issuance of a press release on January 28, 2026 announcing SL Green Realty Corp.’s, or the Company, results for the quarter ended December 31, 2025, the Company has made available on its website supplemental information regarding the Company’s operations that is too voluminous for a press release. The Company is attaching the press release as Exhibit 99.1 and the supplemental package as Exhibit 99.2 to this Current Report on Form 8-K.

The information (including Exhibits 99.1 and 99.2) being furnished pursuant to this “Item 2.02. Results of Operations and Financial Condition” shall not be deemed to be “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities of that section and shall not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Securities Act, or the Exchange Act regardless of any general incorporation language in such filing.

Item 7.01.    Regulation FD Disclosure

As discussed in Item 2.02 above, on January 28, 2026, the Company issued a press release announcing its results for the quarter ended December 31, 2025.

The information being furnished pursuant to this “Item 7.01. Regulation FD Disclosure” shall not be deemed to be “filed” for the purposes of Section 18 of the Exchange Act or otherwise subject to the liabilities of that section and shall not be deemed to be incorporated by reference into any filing under the Securities Act or the Exchange Act regardless of any general incorporation language in such filing. This information will not be deemed an admission as to the materiality of such information that is required to be disclosed solely by Regulation FD.

Item 9.01.    Financial Statements and Exhibits

(d)     Exhibits

99.1    Press release regarding results for the quarter ended December 31, 2025.

99.2    Supplemental package.

Non-GAAP Supplemental Financial Measures

Funds from Operations (FFO)

FFO is a widely recognized non-GAAP financial measure of REIT performance. The Company computes FFO in accordance with standards established by the National Association of Real Estate Investment Trusts, or Nareit, which may not be comparable to FFO reported by other REITs that do not compute FFO in accordance with the Nareit definition, or that interpret the Nareit definition differently than the Company does. The revised White Paper on FFO approved by the Board of Governors of Nareit in April 2002, and subsequently amended in December 2018, defines FFO as net income (loss) (compu