Avantor SEC Filings

Gregory L. Summe, a director of Avantor, Inc. (AVTR), reported insider transactions dated 08/21/2025. The Form 4 shows a purchase of 100,000 shares of Avantor common stock at a weighted average price of $12.56 per share and a reported disposition of 58,111 shares. After the purchase, the reporting person discloses beneficial ownership of 200,000 shares held by a trust, with a disclaimer of ownership except for his pecuniary interest. The filing was signed by Scott Baker by power of attorney on 08/22/2025. The filing does not include option or derivative transactions.

Avantor, Inc. director and President & CEO Emmanuel Ligner was granted equity on 08/18/2025. The filing reports 195,924 restricted stock units issued with vesting in three equal installments beginning 08/18/2026 and stock options to purchase 573,394 shares with an exercise price of $14.04, vesting in three equal annual installments beginning 08/18/2026 and expiring 08/18/2035. Following the reported transactions, Mr. Ligner beneficially owns 195,924 shares (direct) and 573,394 shares underlying options (direct). The Form 4 was signed by a power of attorney on 08/21/2025.

Emmanuel Ligner filed an Initial Statement of Beneficial Ownership (Form 3) reporting his relationship to Avantor, Inc. (ticker AVTR) as President and CEO and a director. The date of the event requiring the statement is 08/18/2025. The filing states no securities are beneficially owned by the reporting person. The submission was signed on behalf of Mr. Ligner by Scott Baker under power of attorney on 08/21/2025. The form is filed by one reporting person and contains no holdings or derivative positions disclosed.

Insider transaction disclosure for Avantor, Inc. (AVTR). Brittany Hankamer, EVP and Chief HR Officer, reported a withholding transaction on 08/14/2025 related to vested restricted stock units. The form shows 181 shares were withheld by the issuer to satisfy tax withholding at an effective price of $12.98 per share. After the withholding, Ms. Hankamer beneficially owned 171,563 shares, held directly. The Form 4 was signed on behalf of the reporting person by an attorney-in-fact on 08/15/2025.

Avantor, Inc. elected Emmanuel Ligner as a director, with an initial term commencing on August 18, 2025 and expiring at the company’s 2026 Annual Meeting of Stockholders. The Board selected Mr. Ligner to fill a vacant seat and the company disclosed that he will receive no additional compensation for his service on the Board. The company noted that Mr. Ligner will begin serving as President and Chief Executive Officer as previously reported.

The filing references prior disclosure of his employment terms and states that an employment contract dated July 15, 2025 between VWR International Ltd., a subsidiary, and Mr. Ligner will be filed with the quarterly report for the period ending September 30, 2025. The company also reported there are no arrangements or understandings with other persons about his selection and that he has no direct or indirect material interest in transactions requiring disclosure.

Summary: Dodge & Cox filed a Schedule 13G/A reporting beneficial ownership of 117,433,484 shares of Avantor, representing 17.2% of the class. The filer reports sole voting power over 111,093,684 shares and sole dispositive power over 117,433,484 shares.

The filing discloses that clients of Dodge & Cox, including the Dodge & Cox Stock Fund, have the right to dividends and proceeds; the Stock Fund holds 74,871,715 shares ( 11.0%). Dodge & Cox certifies these securities are held in the ordinary course of business and not for the purpose of changing or influencing control.

Avantor insider reporting: Christophe Couturier, listed as Executive Vice President, AMEA, received a grant of restricted stock units that vest on 08/08/2027. The Form 4 shows an acquisition of 65,217 shares (reported as an award), bringing his total beneficial ownership to 211,271 shares. The filing also notes 1,140 shares held from the Avantor Employee Stock Purchase Plan.

The disclosure is a routine equity award for an officer rather than a market transaction, increasing the officer's stake through time‑based vesting. The record lists the transaction as an acquisition through restricted stock units and specifies the vesting date without additional conditions in the filing.

Form 4 summary: Steven W. Eck, SVP & Chief Accounting Officer of Avantor, Inc. (AVTR), reported a sale of 3,476 shares of common stock on 08/05/2025 at a price of $11.39 per share. Beneficial ownership following the reported transaction is 55,068 shares. The Form 4 was signed by attorney-in-fact Scott Baker on 08/06/2025. No derivative securities are reported on Table II.