What is the 13F Pro Quality Score for SLG?

13F Pro ranks SL GREEN REALTY CORP (SLG) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View SLG's current score at https://13fpro.ai/research/SLG (free sign-up required for the full ranking).

Which hedge funds own the most SLG stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of SLG include BlackRock,, VANGUARD PORTFOLIO MANAGEMENT, STATE STREET. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/research/SLG as soon as new 13F filings post.

Where does 13F Pro source SLG data?

All SL GREEN REALTY CORP fundamentals and ownership data come directly from SEC EDGAR. SL GREEN REALTY CORP files with the SEC under CIK 1040971. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is SLG in?

SL GREEN REALTY CORP (SLG) is classified in the Real Estate sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/real-estate.

How often is SLG research updated on 13F Pro?

SLG's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

SL GREEN REALTY CORP(SLG)Stock Analysis

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13F Pro Quality Score

41.5/100

Rank #1,890 of 2,879 stocks

View Real Estate peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.

Revenue Growth

50.7/100

Profitability

20.6/100

Balance Sheet

33.1/100

Earnings Quality

30.0/100

Free Cash Flow

46.6/100

Institutional Flow

33.9/100

Revenue Scale

49.1/100

Dilution Risk

94.9/100

SLG Stock Analysis & AI Quality Score

AI stock analysis and institutional research for SL GREEN REALTY CORP (SLG), a Real Estate sector company. 13F Pro's AI-powered ranking engine scores SLG at 41.5/100 on a 32-signal composite quality model, placing it at rank #1,890 of 2,879 stocks — the bottom half of the AI-ranked universe. Areas of concern include profitability (20.6) and earnings quality (30.0), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q1 2026), SL GREEN REALTY CORP reports quarterly revenue of $253.1M, net income of $-80.7M, free cash flow of $-17.6M. Top institutional holders of SLG by reported 13-F value include BlackRock,, VANGUARD PORTFOLIO MANAGEMENT, STATE STREET, based on the most recent SEC filings. SLG trades on the NYSE exchange and files with the SEC under CIK 1040971. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate SLG daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for SL GREEN REALTY CORP directly from SEC EDGAR. SL GREEN REALTY CORP's 13F Pro composite quality score has ranged between 30 and 57 since 2021, currently 41.5 — a declining long-term trajectory across 28 quarterly and live scoring snapshots.

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Fun facts about SL GREEN REALTY CORP

Quirks, history, and lore behind SLG — the kind of stuff that makes a stock memorable.

1
The Basics
A U.S. real estate investment trust · large-cap · listed on the NYSE · headquartered in New York City.
2
The Numbers
It owns and operates roughly 30+ million square feet of commercial space, making it one of the largest office landlords in the country by square footage.
3
The History
Founded in the 1980s and taken public in the 1990s, it rode the Manhattan office boom and became the dominant player in a single, very expensive borough.
4
The Secret
Its entire empire is essentially a one-city bet — virtually all of its portfolio sits in Midtown Manhattan, making it uniquely exposed to New York's office market cycles.
5
The Lore
It owns a stake in One Vanderbilt, the supertall skyscraper right next to Grand Central Terminal — one of the most prestigious office addresses in the world.
6
The Giveaway
The king of Manhattan office REITs, its name pairs a founding family surname with the words Green Realty — and its ticker is just three letters long.

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Revenue

Q1 2026

$253.1M

Net Income

Q1 2026

$-80.7M

Free Cash Flow

Q1 2026

$-17.6M

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

-18.2% YoY

$861.3MFY 2021

FY18 $1.23BFY19 $1.24BFY20 $1.05BFY21 $861.3M

Net Income

+21.2% YoY

$449.8MFY 2021

FY18 $247.3MFY19 $270.4MFY20 $371.1MFY21 $449.8M

EPS (Diluted)

+29.7% YoY

$6.50FY 2021

FY18 $2.75FY19 $3.28FY20 $5.01FY21 $6.50

Total Assets

-5.5% YoY

$11.07BFY 2021

FY18 $12.75BFY19 $12.77BFY20 $11.71BFY21 $11.07B

Total Debt

-29.6% YoY

$1.39BFY 2021

FY18 $1.96BFY19 $2.18BFY20 $1.98BFY21 $1.39B

Op. Cash Flow

-53.8% YoY

$256.0MFY 2021

FY18 $441.5MFY19 $376.5MFY20 $554.2MFY21 $256.0M

Metric	FY 2021	FY 2020	FY 2019	FY 2018	FY 2016	FY 2014
Revenue	$861.3M -18.2%	$1.05B -15.0%	$1.24B +0.9%	$1.23B -34.2%	$1.86B +22.6%	$1.52B
Net Income	$449.8M +21.2%	$371.1M +37.2%	$270.4M +9.4%	$247.3M -1.1%	$249.9M -51.8%	$518.1M
EPS (Diluted)	$6.50 +29.7%	$5.01 +52.7%	$3.28 +19.3%	$2.75 +17.5%	$2.34 -55.3%	$5.23
Total Assets	$11.07B -5.5%	$11.71B -8.3%	$12.77B +0.1%	$12.75B -19.6%	$15.86B -7.2%	$17.10B
Total Debt	$1.39B -29.6%	$1.98B -9.3%	$2.18B +11.3%	$1.96B -51.9%	$4.07B -51.9%	$8.47B
Operating Cash Flow	$256.0M -53.8%	$554.2M +47.2%	$376.5M -14.7%	$441.5M -31.4%	$644.0M +31.3%	$490.4M

AI Insight: SLG Financial Trends

Operating income surged 27% from Q2 2024 to Q3 2025, but net income has turned deeply negative in recent quarters despite operational gains.

• Operating income jumped from $136M in Q1 2025 to $209M in Q3 2025, a 54% gain, signaling core operational strength.

• Revenue relatively stable at $240–276M across 2025, with Q4 2025 reaching $276M—highest in dataset.

• Equity declined 4.2% from $3,951M (Q4 2024) to $3,536M (Q1 2026), reflecting shareholder value erosion.

⚠ Net income swung to -$101M in Q4 2025 and -$81M in Q1 2026 despite positive operating income; large non-operating charges evident.

⚠ Operating cash flow turned negative (-$7M in Q3 2025, -$18M in Q1 2026) despite operating income gains; potential working-capital or investment pressure.

AI Insight: SLG Ratio Trends

SLG's core real estate operations remain solid (OpMargin 57.4%), but net losses and negative equity returns signal severe non-operating headwinds.

• Operating margin stable at 57.4% in Q1 2026, consistent with 56.7% in Q1 2025; core leasing fundamentals resilient.

• ROIC declined to 16.4% in Q1 2026 from 22.2% in Q3 2025; four-quarter trend shows deterioration from 18.7% TTM.

• Net profit margin negative 31.9% in Q1 2026, consistent with Q4 2025 (−36.5%); persistent below-the-line losses.

⚠ ROE/ROA deeply negative (−9.1% / −2.7%) despite positive OpMargin; suggests debt service, impairments, or non-recurring charges.

⚠ Q3 2025 spike in OpMargin (85.5%) and NPM (11.7%) not sustained; Q4–Q1 2026 reversion signals one-off gains.

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Available Research

13F Pro tracks comprehensive data for SL GREEN REALTY CORP including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of SLG

BlackRock, Inc.
$494.2M13,379,191 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$264.1M7,149,080 sh
STATE STREET CORP
$152.9M4,071,540 sh
VANGUARD CAPITAL MANAGEMENT LLC
$118.4M3,205,214 sh
Alyeska Investment Group, L.P.
$107.6M2,911,711 sh
GOLDMAN SACHS GROUP INC
$77.1M2,086,284 sh
GEODE CAPITAL MANAGEMENT, LLC
$70.9M1,917,974 sh
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$58.9M1,594,098 sh
NORTHERN TRUST CORP
$53.7M1,453,206 sh
Nuveen, LLC
$49.7M1,345,938 sh

Fund	Value	Shares
BlackRock, Inc.	$494.2M	13,379,191
VANGUARD PORTFOLIO MANAGEMENT LLC	$264.1M	7,149,080
STATE STREET CORP	$152.9M	4,071,540
VANGUARD CAPITAL MANAGEMENT LLC	$118.4M	3,205,214
Alyeska Investment Group, L.P.	$107.6M	2,911,711
GOLDMAN SACHS GROUP INC	$77.1M	2,086,284
GEODE CAPITAL MANAGEMENT, LLC	$70.9M	1,917,974
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	$58.9M	1,594,098
NORTHERN TRUST CORP	$53.7M	1,453,206
Nuveen, LLC	$49.7M	1,345,938

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Is SLG a good stock to buy?

13F Pro's AI-powered analysis of SL GREEN REALTY CORP (SLG) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Real Estate sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for SLG are available on the SLG stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.

Which hedge funds own SLG?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling SLG. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of SL GREEN REALTY CORP's investment landscape.