SL Green Realty Corp. (SLG) has 16 known insider and institutional holders on record. The largest holder is HOLLIDAY MARC with 1,365,031 shares. Other notable holders include MATHIAS ANDREW W and LEVINE ANDREW S.
Over the last 12 months, insiders have made 27 transactions in SLG stock — 13 buys (valued at $4.05M) and 5 sells (valued at $1.45M). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
SLG Insider Ownership
Top Holder
HOLLIDAY MARC
1,365,031 shares
Buys (12 mo)
13
$4.05M value
Sells (12 mo)
5
$1.45M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Holliday Marc |
President & CEO |
1,365,031 |
2026-02-17 |
|
| 2 |
Mathias Andrew W |
Director |
1,123,752 |
2026-02-17 |
|
| 3 |
Levine Andrew S |
Chief Legal Officer & Gc |
244,704 |
2026-02-17 |
|
| 4 |
Sitomer Harrison |
President & CIO |
149,468 |
2026-03-10 |
|
| 5 |
Diliberto Matthew J. |
Chief Financial Officer |
100,000 |
2026-02-17 |
|
| 6 |
Levy John S |
Director |
98,765 |
2023-04-21 |
|
| 7 |
Green Stephen L |
Director |
33,333 |
2026-01-06 |
|
| 8 |
Hughes Gregory F |
COO & CFO |
30,731 |
2010-10-04 |
|
| 9 |
Mead James E |
Chief Financial Officer |
22,744 |
2015-01-05 |
|
| 10 |
Dillard Lauren B. |
Director |
20,448 |
2026-01-06 |
|
| 11 |
Alschuler John H Jr |
Director |
16,496 |
2026-01-09 |
|
| 12 |
Lamb Peggy |
Director |
9,088 |
2026-01-06 |
|
| 13 |
Atkins Betsy S |
Director |
6,886 |
2024-01-26 |
|
| 14 |
Burton Edwin T Iii |
Director |
5,207 |
2024-01-09 |
|
| 15 |
Brown Carol N |
Director |
5,004 |
2026-01-06 |
|
| 16 |
Hatkoff Craig M |
Director |
2,052 |
2026-02-02 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-30 |
Brown Carol N |
Director |
Informative Sell |
5,004 |
$36.33 |
$181.77K |
| 2026-02-27 |
Sitomer Harrison |
President & CIO |
RSU Award |
85,492 |
- |
- |
| 2026-02-27 |
Sitomer Harrison |
President & CIO |
Unknown |
33,365 |
- |
- |
| 2026-02-12 |
Diliberto Matthew J. |
Chief Financial Officer |
RSU Award |
100,000 |
$40.49 |
$4.05M |
| 2026-02-12 |
Mathias Andrew W |
Director |
RSU Award |
100,617 |
- |
- |
| 2026-02-12 |
Levine Andrew S |
Chief Legal Officer & Gc |
RSU Award |
32,012 |
- |
- |
| 2026-02-12 |
Holliday Marc |
President & CEO |
RSU Award |
110,387 |
- |
- |
| 2026-01-30 |
Diliberto Matthew J. |
Chief Financial Officer |
Return of Shares |
11,600 |
- |
- |
| 2026-01-30 |
Levine Andrew S |
Chief Legal Officer & Gc |
Return of Shares |
10,830 |
- |
- |
| 2026-01-30 |
Holliday Marc |
President & CEO |
Return of Shares |
63,036 |
- |
- |
| 2026-01-30 |
Hatkoff Craig M |
Director |
Return of Shares |
5,004 |
$45.44 |
$227.38K |
| 2026-01-09 |
Alschuler John H Jr |
Director |
Discretionary Sell |
1,645 |
- |
- |
| 2026-01-05 |
Alschuler John H Jr |
Director |
Discretionary Sell |
5,004 |
- |
- |
| 2026-01-05 |
Brown Carol N |
Director |
RSU Award |
5,004 |
- |
- |
| 2026-01-05 |
Lamb Peggy |
Director |
RSU Award |
5,004 |
- |
- |
| 2026-01-05 |
Dillard Lauren B. |
Director |
RSU Award |
5,004 |
- |
- |
| 2026-01-05 |
Mathias Andrew W |
Director |
RSU Award |
5,004 |
- |
- |
| 2026-01-05 |
Green Stephen L |
Director |
RSU Award |
5,004 |
- |
- |
| 2026-01-05 |
Hatkoff Craig M |
Director |
RSU Award |
5,004 |
- |
- |
| 2025-12-23 |
Holliday Marc |
President & CEO |
Informative Sell |
22,223 |
$44.40 |
$986.7K |
| 2025-12-22 |
Holliday Marc |
President & CEO |
Conversion (Buy) |
22,223 |
- |
- |
| 2025-12-22 |
Levine Andrew S |
Chief Legal Officer & Gc |
Informative Sell |
1,493 |
$45.27 |
$67.59K |
| 2025-12-16 |
Holliday Marc |
President & CEO |
RSU Award |
35,833 |
- |
- |
| 2025-09-11 |
Brown Carol N |
Director |
Informative Sell |
937 |
$63.09 |
$59.12K |
| 2025-07-18 |
Brown Carol N |
Director |
Informative Sell |
2,500 |
$60.61 |
$151.53K |
