STOLPER MARK

Director · Officer · TOI, RDNT

As of 2026-09-16, STOLPER MARK has 8 Form 4 transactions on record across 2 companies — 5 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.

Reconstructed holdings

Direct: $9.6MIndirect: $0$9.6Mas of 2026-09-16
  • Direct $9.6M
  • Indirect $0
RDNTdirect121,943 sh$9.2M
TOIdirect56,957 sh$351K

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

RDNT · 6 trades
2026-03-03: Award / grant, 18,228 sh ($0)2025-12-10: Option exercise, 35,703 sh ($217K)2025-12-10: Option exercise, 35,703 sh ($0)2025-09-16: Sale, 35,000 sh ($2.6M)2025-01-08: Award / grant, 22,889 sh ($0)2024-12-16: Gift, 275 sh ($0)
TOI · 2 trades
2026-07-27: Award / grant, 31,124 sh ($0)2026-07-07: Award / grant, 25,833 sh ($0)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-09-16RDNTSale35,000 @ $73.89$2.6M−34.0% of holding68,012Form 4
7 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-07-27TOIAward / grant31,12456,957Form 4
2026-07-07TOIAward / grant25,83325,833Form 4
2026-03-03RDNTAward / grant18,228121,943Form 4
2025-12-10RDNTOption exercise35,703103,715Form 4
2025-12-10RDNTOption exercise35,7030Form 4
2025-01-08RDNTAward / grant22,889103,012Form 4
2024-12-16RDNTGift27580,123Form 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.