MARC HOLLIDAY

CIK 1216194 · PRESIDENT & CEO · last filed 2026-06-25

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$3.43M

Companies

3

Total Filings

114

Lifetime Open-Market Net

-$140.22M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
SLG PRESIDENT & CEO 10,227 $54.59 $558.3K -$140.01M 89 2026-06-25
GPT Chief Executive Officer 85,522 $33.55 $2.87M $0 5 2014-07-02
Gramercy Property Trust Inc. (GKK) Delisted Chief Executive Officer 237,244 -$205.5K 19 2013-02-07

Recent Filings · Page 9 of 12

114 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2012-01-04 SLG Mixed −14,960 -$996.9K EDGAR
2011-12-22 SLG Mixed −130,000 -$8.23M EDGAR
2011-10-20 Gramercy Property Trust Inc. (GKK) Delisted Grant (A) +4,777 $0 EDGAR
2011-08-08 Gramercy Property Trust Inc. (GKK) Delisted Grant (A) +4,950 $0 EDGAR
2011-06-24 SLG Mixed −6,296 -$535.4K EDGAR
2011-04-26 Gramercy Property Trust Inc. (GKK) Delisted Grant (A) +3,538 $0 EDGAR
2011-01-20 SLG Grant (A) $0 EDGAR
2011-01-07 SLG Grant (A) +35,416 $0 EDGAR
2011-01-06 Gramercy Property Trust Inc. (GKK) Delisted Grant (A) +7,994 $0 EDGAR
2010-12-23 SLG Gift (G) −4,000 $0 EDGAR
Showing 8190 of 114
Page 9 of 12
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.