Insider transactions

Mark L Reuss

CIK 1492362 · President · last filed 2026-08-05

Mark L Reuss is a President who has filed 108 SEC Form 4 insider transactions across 5 companies since 2010. The most recent filing, for HONA, was dated Aug 5, 2026. Across all open-market trades the lifetime net is −$157.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $13.1M across reported positions. 104 SEC filings were submitted jointly with Motors Co General.

"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

$13.15M

Companies

5

Total Filings

108

Lifetime Open-Market Net

-$157.00M

Charts

Trading activity, where the exposure sits, and each trade against the stock price.

Filer Profile

Reported Address
1240 WOODWARD AVENUE
DETROIT, MI 48265
Related Filers
Motors Co General — 104 joint filings, latest 2026-07-29
Exelis Inc. — 7 joint filings, latest 2015-06-02
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
HONA Director 12 $155.44 $1.9K $0 2 2026-08-05
GM President 163,372 $80.47 $13.15M -$134.15M 50 2026-07-29
General Motors Co (GM.WS.B) Delisted President 313,469 — — -$22.35M 20 2019-02-19
General Motors Co (GM.WS.C) Delisted Executive Vice President 40,337 — — -$497.5K 19 2015-10-02
Exelis Inc. (XLS) Delisted Director 29,346 — — $0 4 2015-05-14

Recent Filings

108 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
2026-08-05 HONA Grant (A) — $0 EDGAR
2026-07-29 GM Mixed — -$2.88M EDGAR
2026-07-28 GM Notice (144) −71,079 -$6.19M EDGAR
2026-07-01 HONA Grant (A) — $0 EDGAR
2026-02-18 GM Mixed −250,666 -$29.17M EDGAR
2026-02-17 GM Notice (144) −480,724 -$38.98M EDGAR
2026-02-10 GM Mixed +228,641 -$14.79M EDGAR
2026-02-05 GM Mixed +16,312 -$733.6K EDGAR
2025-10-24 GM Mixed −33,030 -$8.96M EDGAR
2025-10-22 GM Notice (144) −260,600 -$17.32M EDGAR
Showing 1–10 of 108
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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.