Home

Mark Romaine

CIK 1578638 · Chief Operating Officer · last filed 2026-03-26

Mark Romaine is a Chief Operating Officer who has filed 35 SEC Form 4 insider transactions across 1 company since 2017. The most recent filing shows the insider sold $92.5K of GLP on Mar 26, 2026. Across all open-market trades the lifetime net is −$4.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $6.7M across reported positions.

"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.

Loading insider history…
Disclosed Exposure

$6.74M

Companies

1

Total Filings

35

Lifetime Open-Market Net

-$4.18M

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
GLP Chief Operating Officer 139,109 $48.46 $6.74M -$4.18M 32 2026-03-26

Recent Filings

35 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
2026-03-26 GLP Sell (S) −2,065 -$92.5K EDGAR
2026-03-23 GLP Sell (S) −5,700 -$274.0K EDGAR
2026-03-19 GLP Sell (S) −2,223 -$105.8K EDGAR
2026-03-18 GLP Sell (S) −15,611 -$740.2K EDGAR
2026-03-13 GLP Sell (S) −3,697 -$176.6K EDGAR
2026-03-11 GLP Sell (S) −2,752 -$132.2K EDGAR
2026-03-09 GLP Notice (144) −30,000 -$1.50M EDGAR
2026-02-27 GLP Mixed +24,384 -$1.10M EDGAR
2026-01-07 GLP Mixed +14,194 -$259.0K EDGAR
2025-09-16 GLP Sell (S) −9,000 -$463.0K EDGAR
Showing 1–10 of 35
Page 1 of 4
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.