Company: SLG-PI
Filing Date: 2025-06-20
Form Type: S-8
Source: 0001104659-25-061169
Chunk: 1

Company: SL GREEN REALTY CORP
Filing Date: 2025-06-20
Form: S-8
Chunk 1
---
¨

<div align='center'>EXPLANATORY NOTE</div>

In accordance with the instructional Note to Part I
of Form S-8 as promulgated by the Securities and Exchange Commission (the “Commission”) and Rule 428(b)(1), the
information specified in Part I of Form S-8 has been omitted from this Registration Statement. This Registration Statement
on Form S-8 of SL Green Realty Corp. (the “Company”) is being filed pursuant to General Instruction E of Form S-8
in connection with the registration of an additional 2,400,000 shares of the Company’s common stock, par value $0.01 per share (“Common
Stock”), that may be issued pursuant to the Sixth Amended and Restated 2005 Stock Option and Incentive Plan (the “Sixth Amended
2005 Plan”). The contents of the Registration Statements on Form S-8 (Nos. 333-265707, Nos. 333-212108, 333-189362, 333-143721
and 333-127014) (the “Prior Equity Plan Registration Statements”), under which 17,875,000 shares of Common Stock were registered
for issuance, are incorporated herein by reference, except to the extent supplemented, amended or superseded by the information set forth
herein or in the Prior Equity Plan Registration Statements.

<div align='center'>PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</div>

Item 3. Incorporation of Documents by Reference.

The following documents of the Company previously
filed with the Commission are incorporated by reference in this Registration Statement:

| (a) 
 (b) | Annual Report on Form 10-K for the fiscal year ended December 31, 2024, filed on February 18, 2025, as amended by the Annual Report on Form 10-K/A for the fiscal year ended December 31, 2024, filed on April 17, 2025; 
 Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2025, filed on May 1, 2025;                                                                                                                       |
|:----|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| (c) | Current Reports on Form 8-K, filed on March 19, 2025                                                                                                                                                                     
 and June 3, 2025; and                                                                                                                                                                                                    |
| (d) | The description of the Company’s Common Stock contained                                                                                                                                                                  
 in the Company