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Insider Trading Intelligence
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MH

Marc Holliday

SLG
PRESIDENT & CEO · SL GREEN REALTY CORP · CIK 0001216194
FILING MIX · LIFETIME66%/34%
BUYS
33
SELLS
17
TOTAL VALUE
$70.30M
COMPANIES
1
ACTIVE SINCE
Jan 2020
HOLDINGS NOW
1,524,548
AVG SELL PX
$56.98
TRADE KIND
SHOWING 50 / 50
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
3 backtested trades · 8 horizons · 2 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Marc Holliday, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d3+66.67%+4.96%-0.25%+5.21%+4.17%—
14d3+66.67%+11.28%+2.36%+8.92%+8.90%—
30d3+66.67%+5.06%+2.82%+2.24%+3.28%—
60d3+100.00%+0.38%+6.64%-6.26%-2.52%—
90d3+100.00%+6.17%+5.28%+0.89%+4.40%—
180d3+66.67%+9.19%+15.09%-5.91%-9.21%—
1y3(1 pending)+100.00%+27.39%+16.32%+11.07%+11.07%—
2y3(1 pending)+0.00%-40.92%+7.23%-48.15%-48.15%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
SLG · 1,524,548 shares · as of Jun 24, 2026
0404,143808,2871,212,4301,616,573202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 33 buys / 17 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
92,025$50.65$4.66M1,524,548Jun 24, 2026Jun 25, 2026 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
125,771——1,616,573Feb 12, 2026Feb 17, 2026 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
125,771——1,490,802Feb 12, 2026Feb 17, 2026 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
110,387——1,365,031Feb 12, 2026Feb 17, 2026 ↗View →
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
63,036$46.17$2.91M1,254,644Jan 30, 2026Feb 3, 2026 ↗View →
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
22,223$44.40$986.7K9,697.65Dec 23, 2025Dec 29, 2025 ↗View →
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
22,223——1,323,054Dec 22, 2025Dec 29, 2025 ↗View →
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
5,374$44.21$237.6K1,317,680Dec 22, 2025Dec 29, 2025 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASE
PRESIDENT & CEO
22,223——31,920.65Dec 22, 2025Dec 29, 2025 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
35,833——1,345,277Dec 16, 2025Dec 18, 2025 ↗View →
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
121,838$65.01$7.92M1,309,444Jun 23, 2025Jun 30, 2025 ↗View →
SLG
SL GREEN REALTY CORP
SALEGRANT
Gift
4,600——9,320.47Feb 20, 2025Feb 20, 2025 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASE
PRESIDENT & CEO
4,600——13,920.47Feb 18, 2025Feb 20, 2025 ↗View →
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
4,600——1,431,282Feb 18, 2025Feb 20, 2025 ↗View →
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
100,000$65.70$6.57M1,435,882Feb 13, 2025Feb 14, 2025 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
145,644——1,421,544Jan 29, 2025Jan 31, 2025 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
57,169——1,535,882Jan 29, 2025Jan 31, 2025 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
57,169——1,478,713Jan 29, 2025Jan 31, 2025 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
115,418——1,275,900Jan 29, 2025Jan 31, 2025 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
217,917——217,917Dec 27, 2024Dec 31, 2024 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
45,884——1,219,963Dec 18, 2024Dec 20, 2024 ↗View →
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
53,627$74.45$3.99M1,166,336Dec 18, 2024Dec 20, 2024 ↗View →
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
30,000$70.85$2.13M1,174,079Sep 30, 2024Oct 2, 2024 ↗View →
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
70,000$56.22$3.94M1,204,079Jun 28, 2024Jul 2, 2024 ↗View →
SLG
SL GREEN REALTY CORP
SALE
PRESIDENT & CEO
60,000$52.59$3.16M1,274,079Mar 29, 2024Mar 29, 2024 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
23,832——1,263,048Jan 29, 2024Jan 31, 2024 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
110,679——1,239,216Jan 29, 2024Jan 31, 2024 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
71,031——1,334,079Jan 29, 2024Jan 31, 2024 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
97,096——1,128,537Jan 29, 2024Jan 31, 2024 ↗View →
SLG
SL GREEN REALTY CORP
SALE
CHIEF EXECUTIVE OFFICER
177,000$46.63$8.25M1,063,011Dec 29, 2023Dec 29, 2023 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
34,467——1,240,011Dec 11, 2023Dec 13, 2023 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
10,337——1,200,656Jan 30, 2023Feb 1, 2023 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
4,888——1,205,544Jan 30, 2023Feb 1, 2023 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
80,772——1,190,319Jan 30, 2023Feb 1, 2023 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
134,156——1,109,547Jan 30, 2023Feb 1, 2023 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
24,292——1,132,247Dec 12, 2022Dec 14, 2022 ↗View →
SLG
SL GREEN REALTY CORP
SALE
CHIEF EXECUTIVE OFFICER
145,000$38.52$5.59M987,247Dec 12, 2022Dec 14, 2022 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
142,062——1,107,955Jan 31, 2022Feb 2, 2022 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
61,246——939,170Jan 19, 2022Jan 21, 2022 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
26,723——965,893Jan 19, 2022Jan 21, 2022 ↗View →
SLG
SL GREEN REALTY CORP
SALE
Chief Executive Officer
150,000$74.10$11.12M895,218Dec 20, 2021Dec 22, 2021 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
23,002——1,045,218Dec 13, 2021Dec 15, 2021 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASE
Chief Executive Officer
18,707$25.33$473.8K111,473Feb 26, 2021Mar 1, 2021 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASE
Chief Executive Officer
636$25.22$16.0K92,766Feb 25, 2021Mar 1, 2021 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
53,350——1,022,216Feb 4, 2021Feb 5, 2021 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
141,983——968,866Jan 22, 2021Jan 22, 2021 ↗View →
SLG
SL GREEN REALTY CORP
SALE
Chief Executive Officer
135,000$61.93$8.36M826,883Dec 17, 2020Dec 18, 2020 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
20,475——961,883Dec 11, 2020Dec 15, 2020 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
77,824——941,408Feb 3, 2020Feb 5, 2020 ↗View →
SLG
SL GREEN REALTY CORP
PURCHASEGRANT
Stock grant
49,294——863,584Jan 18, 2020Jan 22, 2020 ↗View →
Other insiders · SLG
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About this filer
CIK 0001216194
ROLE
PRESIDENT & CEO
PRIMARY
SLG
COMPANIES
1
ACTIVE SINCE
Jan 2020
MARKETPEEL · /INSIDER/0001216194DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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