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Mark Tkach

CIK 1880622 · Interim CEO · last filed 2026-06-08

Mark Tkach is an Interim CEO who has filed 12 SEC Form 4 insider transactions across 2 companies since 2021. The most recent filing, for RDNW, was dated Jun 8, 2026. Across all open-market trades the lifetime net is +$8.5M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $47.4M 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.

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Disclosed Exposure

$47.44M

Companies

2

Total Filings

12

Lifetime Open-Market Net

$8.54M

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
RDNW Director 6,945,985 $6.83 $47.44M $0 1 2026-06-08
RideNow Group, Inc. (RMBL) Delisted Director 6,933,082 $3.18 $22.05M $8.54M 11 2025-06-06

Recent Filings

12 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
2026-06-08 RDNW Grant (A) +12,903 $0 EDGAR
2025-06-06 RideNow Group, Inc. (RMBL) Delisted Grant (A) +61,728 $0 EDGAR
2024-12-16 RideNow Group, Inc. (RMBL) Delisted Exer (M) +433,884 $1.81M EDGAR
2024-08-13 RideNow Group, Inc. (RMBL) Delisted Grant (A) +28,531 $0 EDGAR
2024-03-27 RideNow Group, Inc. (RMBL) Delisted Grant (A) +6,374 $0 EDGAR
2023-12-12 RideNow Group, Inc. (RMBL) Delisted Exer (M) +2,859,591 $15.73M EDGAR
2023-12-12 RideNow Group, Inc. (RMBL) Delisted Buy (P) +860,822 $4.73M EDGAR
2023-12-07 RideNow Group, Inc. (RMBL) Delisted Exer (M) +2,794,278 $15.37M EDGAR
2023-09-05 RideNow Group, Inc. (RMBL) Delisted Grant (A) +61,125 $0 EDGAR
2022-06-02 RideNow Group, Inc. (RMBL) Delisted Buy (P) +30,000 $477.3K EDGAR
Showing 1–10 of 12
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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.