Robert C. Malenka

CIK 2021198 · last filed 2026-04-17

Robert C. Malenka is a corporate insider who has filed 20 SEC Form 4 insider transactions across 1 company since 2025. The most recent filing, for MPLT, was dated Jul 15, 2026. Across all open-market trades the lifetime net is −$1.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.5M 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

$3.55M

Companies

1

Total Filings

20

Lifetime Open-Market Net

-$1.60M

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
MPLT Director 348,138 $10.20 $3.55M -$1.60M 7 2026-04-17

Recent Filings

20 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
2026-07-15 MPLT Notice (144) −17,537 -$664.8K EDGAR
2026-04-17 MPLT Sell (S) −8,593 -$231.2K EDGAR
2026-04-15 MPLT Notice (144) −8,593 -$232.2K EDGAR
2026-02-24 MPLT Sell (S) −14,195 -$260.4K EDGAR
2026-02-24 MPLT Notice (144) −736 -$13.4K EDGAR
2026-02-23 MPLT Notice (144) −11,264 -$207.5K EDGAR
2026-02-20 MPLT Notice (144) −2,195 -$39.6K EDGAR
2026-02-18 MPLT Sell (S) −12,116 -$220.6K EDGAR
2026-02-13 MPLT Notice (144) −12,116 -$220.7K EDGAR
2026-02-12 MPLT Sell (S) −6,863 -$124.3K EDGAR
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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.