Mastantuono Gina

Director · Officer · RBLX, NOW

As of 2026-09-16, Mastantuono Gina has 138 Form 4 transactions on record across 2 companies — 69 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 May in multiple years since 2023 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.

Reconstructed holdings

Direct: $507KIndirect: $0$507Kas of 2026-09-16
  • Direct $507K
  • Indirect $0
NOWdirect3,190 sh$446K
RBLXdirect1,296 sh$61K

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

NOW · 115 trades
2026-08-17: Withheld for tax, 858 sh ($101K)2026-08-17: Option exercise, 1,595 sh ($0)2026-08-17: Option exercise, 1,595 sh ($0)2026-08-14: Withheld for tax, 3,012 sh ($373K)2026-08-14: Withheld for tax, 1,266 sh ($157K)2026-08-14: Option exercise, 2,355 sh ($0)2026-08-14: Option exercise, 5,602 sh ($0)2026-08-14: Option exercise, 2,355 sh ($0)2026-08-14: Option exercise, 5,602 sh ($0)2026-08-07: Withheld for tax, 2,121 sh ($265K)2026-08-07: Option exercise, 3,945 sh ($0)2026-08-07: Option exercise, 3,945 sh ($0)2026-05-15: Withheld for tax, 3,012 sh ($286K)2026-05-15: Withheld for tax, 1,264 sh ($120K)2026-05-15: Withheld for tax, 858 sh ($82K)2026-05-15: Option exercise, 5,602 sh ($0)2026-05-15: Option exercise, 2,350 sh ($0)2026-05-15: Option exercise, 1,595 sh ($0)2026-05-15: Option exercise, 2,350 sh ($0)2026-05-15: Option exercise, 1,595 sh ($0)2026-05-15: Option exercise, 5,602 sh ($0)2026-05-07: Withheld for tax, 2,121 sh ($199K)2026-05-07: Option exercise, 3,945 sh ($0)2026-05-07: Option exercise, 3,945 sh ($0)2026-04-29: Award / grant, 39,155 sh ($25.7M)2026-02-17: Withheld for tax, 23,869 sh ($2.5M)2026-02-17: Withheld for tax, 858 sh ($91K)2026-02-17: Option exercise, 44,407 sh ($0)2026-02-17: Option exercise, 1,595 sh ($0)2026-02-17: Award / grant, 67,225 sh ($0)2026-02-17: Option exercise, 44,407 sh ($0)2026-02-17: Option exercise, 1,595 sh ($0)2026-02-13: Withheld for tax, 1,168 sh ($125K)2026-02-13: Option exercise, 2,355 sh ($0)2026-02-13: Option exercise, 2,355 sh ($0)2026-02-12: Withheld for tax, 613 sh ($63K)2026-02-12: Option exercise, 1,140 sh ($0)2026-02-12: Option exercise, 1,140 sh ($0)2026-02-09: Award / grant, 22,207 sh ($0)2026-02-06: Withheld for tax, 7,512 sh ($757K)2026-02-06: Withheld for tax, 1,956 sh ($197K)2026-02-06: Option exercise, 18,005 sh ($0)2026-02-06: Option exercise, 3,945 sh ($0)2026-02-06: Option exercise, 3,945 sh ($0)2026-02-06: Option exercise, 18,005 sh ($0)2026-02-03: Award / grant, 18,005 sh ($0)2025-12-05: Sale, 415 sh ($353K)2025-11-28: Sale, 417 sh ($337K)2025-11-17: Withheld for tax, 172 sh ($144K)2025-11-17: Option exercise, 319 sh ($0)2025-11-17: Option exercise, 319 sh ($0)2025-11-14: Withheld for tax, 253 sh ($215K)2025-11-14: Option exercise, 470 sh ($0)2025-11-14: Option exercise, 470 sh ($0)2025-11-12: Withheld for tax, 123 sh ($106K)2025-11-12: Option exercise, 227 sh ($0)2025-11-12: Option exercise, 227 sh ($0)2025-11-07: Withheld for tax, 425 sh ($366K)2025-11-07: Option exercise, 789 sh ($0)2025-11-07: Option exercise, 789 sh ($0)2025-08-18: Sale, 1,762 sh ($1.5M)2025-08-15: Withheld for tax, 2,388 sh ($2.1M)2025-08-15: Withheld for tax, 254 sh ($220K)2025-08-15: Withheld for tax, 172 sh ($149K)2025-08-15: Option exercise, 4,442 sh ($0)2025-08-15: Option exercise, 471 sh ($0)2025-08-15: Option exercise, 319 sh ($0)2025-08-15: Option exercise, 471 sh ($0)2025-08-15: Option exercise, 319 sh ($0)2025-08-15: Option exercise, 4,442 sh ($0)2025-08-13: Sale, 84 sh ($72K)2025-08-12: Withheld for tax, 123 sh ($105K)2025-08-12: Option exercise, 228 sh ($0)2025-08-12: Option exercise, 228 sh ($0)2025-08-08: Sale, 292 sh ($256K)2025-08-07: Withheld for tax, 425 sh ($372K)2025-08-07: Option exercise, 789 sh ($0)2025-08-07: Option exercise, 789 sh ($0)2025-07-24: Award / grant, 7,831 sh ($5.1M)2025-05-19: Sale, 118 sh ($122K)2025-05-16: Withheld for tax, 172 sh ($179K)2025-05-16: Option exercise, 319 sh ($0)2025-05-16: Option exercise, 319 sh ($0)2025-05-15: Withheld for tax, 253 sh ($262K)2025-05-15: Option exercise, 470 sh ($0)2025-05-15: Option exercise, 470 sh ($0)2025-05-13: Sale, 84 sh ($86K)2025-05-12: Withheld for tax, 123 sh ($125K)2025-05-12: Option exercise, 227 sh ($0)2025-05-12: Option exercise, 227 sh ($0)2025-05-08: Sale, 292 sh ($288K)2025-05-07: Withheld for tax, 425 sh ($418K)2025-05-07: Option exercise, 789 sh ($0)2025-05-07: Option exercise, 789 sh ($0)2025-02-21: Sale, 4,442 sh ($4.3M)2025-02-18: Award / grant, 5,647 sh ($0)2025-02-14: Withheld for tax, 1,653 sh ($1.6M)2025-02-14: Withheld for tax, 159 sh ($157K)2025-02-14: Option exercise, 319 sh ($0)2025-02-14: Option exercise, 3,332 sh ($0)2025-02-14: Option exercise, 319 sh ($0)2025-02-14: Option exercise, 3,332 sh ($0)2025-02-12: Withheld for tax, 2,485 sh ($2.4M)2025-02-12: Withheld for tax, 114 sh ($112K)2025-02-12: Option exercise, 5,019 sh ($0)2025-02-12: Option exercise, 228 sh ($0)2025-02-12: Option exercise, 5,019 sh ($0)2025-02-12: Option exercise, 228 sh ($0)2025-02-10: Award / grant, 2,509 sh ($0)2025-02-07: Withheld for tax, 273 sh ($275K)2025-02-07: Withheld for tax, 68 sh ($69K)2025-02-07: Option exercise, 176 sh ($0)2025-02-07: Option exercise, 176 sh ($0)2025-02-07: Option exercise, 789 sh ($0)2025-02-07: Option exercise, 789 sh ($0)
RBLX · 23 trades
2026-08-20: Other acquisition, 1,296 sh ($0)2026-08-20: Other acquisition, 1,296 sh ($0)2026-05-28: Award / grant, 5,185 sh ($0)2026-05-27: Other acquisition, 1,126 sh ($0)2026-05-27: Other acquisition, 1,126 sh ($0)2026-02-20: Other acquisition, 1,125 sh ($0)2026-02-20: Other acquisition, 1,125 sh ($0)2025-11-20: Other acquisition, 1,125 sh ($0)2025-11-20: Other acquisition, 1,125 sh ($0)2025-08-20: Other acquisition, 1,125 sh ($0)2025-08-20: Other acquisition, 1,125 sh2025-08-20: Other acquisition, 1,125 sh2025-05-29: Award / grant, 4,501 sh ($0)2025-05-28: Other acquisition, 1,835 sh ($0)2025-05-28: Other acquisition, 1,835 sh2025-05-28: Other acquisition, 1,835 sh2025-02-20: Other acquisition, 1,833 sh ($0)2025-02-20: Other acquisition, 1,833 sh2025-02-20: Other acquisition, 1,833 sh2023-05-04: Sale, 13 sh ($442)2023-03-03: Purchase, 13 sh ($535)2022-10-04: Sale, 9 sh ($348)2022-08-02: Purchase, 9 sh ($416)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-12-05NOWSale415 @ $850.00$353K−3.3% of holding12,228Form 4
2025-11-28NOWSale417 @ $808.00$337K−3.2% of holding12,643Form 4
2025-08-18NOWSale1,762 @ $866.45$1.5M−12.6% of holding12,228Form 4
2025-08-13NOWSale84 @ $860.57$72K−0.7% of holding11,572Form 4
2025-08-08NOWSale292 @ $878.39$256K−2.5% of holding11,551Form 4
2025-05-19NOWSale118 @ $1030.25$122K−1.0% of holding11,464Form 4
2025-05-13NOWSale84 @ $1023.00$86K−0.7% of holding11,218Form 4
2025-05-08NOWSale292 @ $985.00$288K−2.5% of holding11,198Form 4
2025-02-21NOWSale4,442 @ $964.70$4.3M−28.5% of holding11,126Form 4
2023-05-04RBLXSale13 @ $33.98$442−0.1% of holding16,623Form 4
2023-03-03RBLXPurchase13 @ $41.13$535+0.1% of holding16,636Form 4
2022-10-04RBLXSale9 @ $38.68$348−0.1% of holding16,623Form 4
2022-08-02RBLXPurchase9 @ $46.19$416+0.1% of holding16,632Form 4
125 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-20RBLXOther acquisition1,29618,261Form 4
2026-08-20RBLXOther acquisition1,2961,296Form 4
2026-08-17NOWWithheld for tax858109,256Form 4
2026-08-17NOWOption exercise1,5953,190Form 4
2026-08-17NOWOption exercise1,595110,114Form 4
2026-08-14NOWWithheld for tax3,012108,519Form 4
2026-08-14NOWWithheld for tax1,266105,929Form 4
2026-08-14NOWOption exercise2,355107,195Form 4
2026-08-14NOWOption exercise5,60256,021Form 4
2026-08-14NOWOption exercise2,35514,120Form 4
2026-08-14NOWOption exercise5,602111,531Form 4
2026-08-07NOWWithheld for tax2,121104,840Form 4
2026-08-07NOWOption exercise3,945106,961Form 4
2026-08-07NOWOption exercise3,9453,950Form 4
2026-05-28RBLXAward / grant5,18519,557Form 4
2026-05-27RBLXOther acquisition1,12614,372Form 4
2026-05-27RBLXOther acquisition1,1264,501Form 4
2026-05-15NOWWithheld for tax3,012102,938Form 4
2026-05-15NOWWithheld for tax1,264100,348Form 4
2026-05-15NOWWithheld for tax85899,262Form 4
2026-05-15NOWOption exercise5,602105,950Form 4
2026-05-15NOWOption exercise2,350101,612Form 4
2026-05-15NOWOption exercise1,595100,120Form 4
2026-05-15NOWOption exercise2,35016,475Form 4
2026-05-15NOWOption exercise1,5954,785Form 4
2026-05-15NOWOption exercise5,60261,623Form 4
2026-05-07NOWWithheld for tax2,12198,525Form 4
2026-05-07NOWOption exercise3,945100,646Form 4
2026-05-07NOWOption exercise3,9457,895Form 4
2026-04-29NOWAward / grant39,155234,930Form 4
2026-02-20RBLXOther acquisition1,1253,375Form 4
2026-02-20RBLXOther acquisition1,12515,498Form 4
2026-02-17NOWWithheld for tax23,86996,701Form 4
2026-02-17NOWWithheld for tax85876,163Form 4
2026-02-17NOWOption exercise44,4070Form 4
2026-02-17NOWOption exercise1,5956,380Form 4
2026-02-17NOWAward / grant67,22567,225Form 4
2026-02-17NOWOption exercise44,407120,570Form 4
2026-02-17NOWOption exercise1,59577,021Form 4
2026-02-13NOWWithheld for tax1,16875,426Form 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.