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Ken Vroman

CIK 1429863 · Chief Transformation Officer · last filed 2026-03-17

Ken Vroman is a Chief Transformation Officer who has filed 35 SEC Form 4 insider transactions across 1 company since 2008. The most recent filing, for CME, was dated Mar 17, 2026. Across all open-market trades the lifetime net is −$3.9M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $5.4M 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

$5.40M

Companies

1

Total Filings

35

Lifetime Open-Market Net

-$3.90M

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
CME Chief Transformation Officer 18,851 $286.45 $5.40M -$3.90M 33 2026-03-17

Recent Filings

35 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
2026-03-17 CME Mixed +3,941 $1.23M EDGAR
2026-03-12 CME Notice (144) −5,160 -$1.59M EDGAR
2026-03-12 CME Sell (S) −5,160 -$1.59M EDGAR
2025-09-17 CME Mixed +1,312 $339.3K EDGAR
2025-03-18 CME Mixed +2,043 $528.5K EDGAR
2025-02-14 CME Sell (S) −5,066 -$1.27M EDGAR
2025-02-13 CME Notice (144) −5,066 -$1.27M EDGAR
2024-09-17 CME Mixed +1,796 $394.5K EDGAR
2024-03-19 CME Mixed +2,843 $618.4K EDGAR
2023-09-18 CME Mixed +2,149 $444.5K EDGAR
Showing 1–10 of 35
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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.