SUMME GREGORY L 4

What Happened
Gregory L. Summe, a director of Avantor, acquired 100,000 shares of Avantor, Inc. (AVTR) common stock in an open-market purchase on February 12, 2026. The shares were bought at $9.40 per share for an aggregate purchase price of approximately $940,000. This was a straight purchase (code P), not a sale or option exercise.

Key Details

• Transaction date and price: 2026-02-12 — 100,000 shares at $9.40 each (total ≈ $940,000).
• Filing date: Form 4 filed on 2026-02-12 (filed same day as the transaction).
• Shares owned after transaction: Not specified in the filing.
• Footnote: Shares are held by a trust. The reporting person disclaims beneficial ownership except to the extent of his pecuniary interest in the trust (per filing footnote F1).
• No 10b5-1 plan, option exercise, gift, or tax-withholding details were reported.

Context

• This was an open-market purchase by a company director. Purchases by insiders are often watched by investors as potentially informative, though filings do not explain motivation.
• The trust disclosure means the shares are held in a trust vehicle; Summe reports beneficial ownership only to the extent of his pecuniary interest in that trust.