Romaine Mark

Officer · GLP

As of 2026-09-16, Romaine Mark has 50 Form 4 transactions on record across 1 company — 24 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Pattern in the record: open-market sales filed in March in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $7.1MIndirect: $0$7.1Mas of 2026-09-16
  • Direct $7.1M
  • Indirect $0
GLPdirect139,109 sh$7.1M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

GLP · 50 trades
2026-03-25: Sale, 2,065 sh ($93K)2026-03-23: Sale, 435 sh ($21K)2026-03-20: Sale, 2,020 sh ($97K)2026-03-19: Sale, 3,245 sh ($156K)2026-03-18: Sale, 4,735 sh ($226K)2026-03-17: Sale, 7,500 sh ($355K)2026-03-16: Sale, 3,376 sh ($159K)2026-03-13: Sale, 900 sh ($43K)2026-03-12: Sale, 1,148 sh ($55K)2026-03-11: Sale, 1,649 sh ($79K)2026-03-10: Sale, 252 sh ($12K)2026-03-09: Sale, 2,500 sh ($120K)2026-02-26: Award / grant, 24,498 sh ($0)2026-02-25: Withheld for tax, 22,826 sh ($1.1M)2026-02-25: Award / grant, 47,210 sh ($0)2026-01-06: Withheld for tax, 1,730 sh ($74K)2026-01-06: Option exercise, 5,444 sh ($0)2026-01-06: Option exercise, 5,444 sh ($0)2026-01-05: Withheld for tax, 2,322 sh ($98K)2026-01-05: Withheld for tax, 2,048 sh ($87K)2026-01-05: Option exercise, 6,981 sh ($0)2026-01-05: Option exercise, 7,869 sh ($0)2026-01-05: Option exercise, 6,981 sh ($0)2026-01-05: Option exercise, 7,869 sh ($0)2025-09-15: Sale, 9,000 sh ($463K)2025-08-15: Sale, 9,000 sh ($453K)2025-07-16: Sale, 1,881 sh ($97K)2025-07-15: Sale, 7,119 sh ($365K)2025-06-25: Sale, 2,341 sh ($121K)2025-06-24: Sale, 6,659 sh ($361K)2025-05-03: Withheld for tax, 16,268 sh ($835K)2025-05-03: Option exercise, 33,647 sh ($0)2025-05-03: Option exercise, 33,647 sh ($0)2025-03-25: Sale, 12,800 sh ($675K)2025-03-24: Withheld for tax, 5,396 sh ($287K)2025-03-24: Sale, 11 sh ($594)2025-03-24: Option exercise, 11,161 sh ($0)2025-03-24: Option exercise, 11,161 sh ($0)2025-03-21: Sale, 2,195 sh ($119K)2025-02-26: Withheld for tax, 27,536 sh ($1.6M)2025-02-26: Award / grant, 55,228 sh ($0)2025-01-06: Withheld for tax, 2,048 sh ($97K)2025-01-06: Option exercise, 6,981 sh ($0)2025-01-06: Option exercise, 6,981 sh ($0)2025-01-05: Withheld for tax, 2,309 sh ($109K)2025-01-05: Option exercise, 7,868 sh ($0)2025-01-05: Option exercise, 7,868 sh ($0)2025-01-01: Withheld for tax, 3,133 sh ($146K)2025-01-01: Option exercise, 9,203 sh ($0)2025-01-01: Option exercise, 9,203 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2026-03-25GLPSale2,065 @ $44.80$93K−1.5% of holding139,109Form 4
2026-03-23GLPSale435 @ $47.31$21K−0.3% of holding141,174Form 4
2026-03-20GLPSale2,020 @ $48.19$97K−1.4% of holding141,609Form 4
2026-03-19GLPSale3,245 @ $48.10$156K−2.2% of holding143,629Form 4
2026-03-18GLPSale4,735 @ $47.76$226K−3.1% of holding146,874Form 4
2026-03-17GLPSale7,500 @ $47.39$355K−4.7% of holding151,609Form 4
2026-03-16GLPSale3,376 @ $47.00$159K−2.1% of holding159,109Form 4
2026-03-13GLPSale900 @ $47.50$43K−0.6% of holding162,660Form 4
2026-03-12GLPSale1,148 @ $47.56$55K−0.7% of holding163,560Form 4
2026-03-11GLPSale1,649 @ $48.03$79K−1.0% of holding164,708Form 4
2026-03-10GLPSale252 @ $48.50$12K−0.2% of holding166,357Form 4
2026-03-09GLPSale2,500 @ $48.00$120K−1.5% of holding166,609Form 4
2025-09-15GLPSale9,000 @ $51.44$463K−6.5% of holding130,531Form 4
2025-08-15GLPSale9,000 @ $50.38$453K−6.1% of holding139,531Form 4
2025-07-16GLPSale1,881 @ $51.68$97K−1.3% of holding148,531Form 4
2025-07-15GLPSale7,119 @ $51.28$365K−4.5% of holding150,412Form 4
2025-06-25GLPSale2,341 @ $51.53$121K−1.5% of holding157,531Form 4
2025-06-24GLPSale6,659 @ $54.26$361K−4.0% of holding159,872Form 4
2025-03-25GLPSale12,800 @ $52.74$675K−7.9% of holding149,152Form 4
2025-03-24GLPSale11 @ $54.00$594−0.0% of holding156,187Form 4
2025-03-21GLPSale2,195 @ $54.06$119K−1.4% of holding156,198Form 4
29 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-02-26GLPAward / grant24,49824,498Form 4
2026-02-25GLPWithheld for tax22,826169,109Form 4
2026-02-25GLPAward / grant47,210191,935Form 4
2026-01-06GLPWithheld for tax1,730144,725Form 4
2026-01-06GLPOption exercise5,44410,887Form 4
2026-01-06GLPOption exercise5,444146,455Form 4
2026-01-05GLPWithheld for tax2,322136,078Form 4
2026-01-05GLPWithheld for tax2,048141,011Form 4
2026-01-05GLPOption exercise6,9816,981Form 4
2026-01-05GLPOption exercise7,8690Form 4
2026-01-05GLPOption exercise6,981143,059Form 4
2026-01-05GLPOption exercise7,869138,400Form 4
2025-05-03GLPWithheld for tax16,268166,531Form 4
2025-05-03GLPOption exercise33,6470Form 4
2025-05-03GLPOption exercise33,647182,799Form 4
2025-03-24GLPWithheld for tax5,396161,952Form 4
2025-03-24GLPOption exercise11,1610Form 4
2025-03-24GLPOption exercise11,161167,348Form 4
2025-02-26GLPWithheld for tax27,536158,393Form 4
2025-02-26GLPAward / grant55,228185,929Form 4
2025-01-06GLPWithheld for tax2,048130,701Form 4
2025-01-06GLPOption exercise6,98113,962Form 4
2025-01-06GLPOption exercise6,981132,749Form 4
2025-01-05GLPWithheld for tax2,309125,768Form 4
2025-01-05GLPOption exercise7,8687,869Form 4
2025-01-05GLPOption exercise7,868128,077Form 4
2025-01-01GLPWithheld for tax3,133120,209Form 4
2025-01-01GLPOption exercise9,203123,342Form 4
2025-01-01GLPOption exercise9,2030Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.