Gregory L Summe

Director, Avantor

Bought, 12 months

$2.1M

Sold, 12 months

$0.0M

Companies

Latest trade

Feb 12, 2026

Companies

AvantorDirector +$2.1M

Trades

AVTR Bought 100,000 shares at $9.40 $0.9M Feb 12

AVTR Bought 100,000 shares at $11.25 $1.1M Oct 30

Open-market trades from SEC Form 4 only: no grants, option exercises or gifts. People are matched by the name on their filings, so two people with the same name share this page. For information only — not investment advice.