Dingemans Simon

SEC Form 4 insider trading activity

Dingemans Simon has filed 3 SEC Form 4 filings (3 transaction rows) across 1 company, with disclosures dating back to 2026. 3 of those filings fall inside the rolling window. Most recent filing: May 11, 2026.

On the most recent filing, Dingemans Simon is listed as Director at Avantor, Inc. Inside the rolling window, Dingemans Simon reported 1 open-market purchase totaling $204K in AVTR and no open-market sales.

Companies traded

Other insiders at AVTR

Insider Buying

$204K

reported purchases (SEC code P)

Insider Selling

$0

reported sales (SEC code S)

Companies

1

in the rolling window

Source
AVTR
Dingemans Simon
Purchase$204KMay 5SEC ↗
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Frequently asked questions

How many SEC Form 4 filings has Dingemans Simon made?

Dingemans Simon has filed 3 SEC Form 4 filings (3 transaction rows) across 1 company since 2026.

Which companies does Dingemans Simon trade?

Dingemans Simon has filed SEC Form 4 disclosures for 1 company, including AVTR.

When was Dingemans Simon's most recent SEC Form 4 filing?

Dingemans Simon's most recent SEC Form 4 filing on Tracefour is dated May 11, 2026.

What is Dingemans Simon's total buy and sell value in the current window?

Inside the rolling retention window, Dingemans Simon bought $204K and sold $0 based on SEC Form 4 filings.

What was Dingemans Simon's largest disclosed transaction?

The largest disclosed transaction in the current window is a purchase of 25,000 AVTR shares on 2026-05-01, worth $204K, per SEC Form 4 filings.