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Mark T. Walsh

CIK 1977188 · CEO & Director · last filed 2026-08-07

Mark T. Walsh is a CEO & Director who has filed 33 SEC Form 4 insider transactions across 1 company since 2024. The most recent filing, for SVV, was dated Aug 10, 2026. Across all open-market trades the lifetime net is −$5.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.8M 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

$1.81M

Companies

1

Total Filings

33

Lifetime Open-Market Net

-$5.54M

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
SVV CEO & Director 147,363 $12.29 $1.81M -$5.54M 17 2026-08-07

Recent Filings

33 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
2026-08-10 SVV Notice (144) −100,000 -$1.20M EDGAR
2026-08-07 SVV Mixed — -$1.93M EDGAR
2026-08-05 SVV Notice (144) −7,941 -$87.5K EDGAR
2026-06-23 SVV Sell (S) −41,600 -$419.2K EDGAR
2026-06-18 SVV Sell (S) −3,400 -$34.5K EDGAR
2026-06-18 SVV Notice (144) −41,600 -$419.2K EDGAR
2026-06-17 SVV Notice (144) −300 -$3.0K EDGAR
2026-06-16 SVV Notice (144) −3,100 -$31.4K EDGAR
2026-03-16 SVV Mixed +92,363 $741.7K EDGAR
2025-09-26 SVV Mixed — -$398.8K EDGAR
Showing 1–10 of 33
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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.