Avantor, Inc. — Director's Dealing 2021

May 13, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Avantor, Inc. (AVTR)
CIK: 0001722482
Period of Report: 2021-05-11

Reporting Person: Natauri Jo (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-11	Common Stock, par value $0.01 per share	S	2626771	$30.68	Disposed	24807517.77	Indirect
2021-05-11	Common Stock, par value $0.01 per share	J	24729495	$30.86	Disposed	175624.77	Indirect
2021-05-11	Common Stock, par value $0.01 per share	J	92661	$30.86	Acquired	92661	Direct

Footnotes

F1: The Reporting Person is a managing director of Goldman Sachs & Co. LLC ("Goldman Sachs"). Goldman Sachs is a direct subsidiary of The Goldman Sachs Group, Inc. ("GS Group"). Goldman Sachs is the investment manager of each of StoneBridge 2017, L.P. ("StoneBridge 2017"), StoneBridge 2017 Offshore, L.P. ("StoneBridge 2017 Offshore"), VWR Partners, L.P. ("VWR"), StoneBridge 2018, L.P. ("StoneBridge 2018") and StoneBridge 2018 Offshore, L.P. ("StoneBridge 2018 Offshore" and, together with StoneBridge 2017, StoneBridge 2017 Offshore, VWR and StoneBridge 2018, the "GS Funds"). Bridge Street Opportunity Advisors, L.L.C. ("Bridge Street") is the sole general partner of each of the GS Funds, a direct wholly-owned subsidiary of GS Fund Holdings, L.L.C. ("GS Fund Holdings") and an indirect wholly-owned subsidiary of GS Group. Goldman Sachs is the manager of Bridge Street and Broad Street Principal Investments, L.L.C. ("BSPI").

F2: Represents an open market sale by BSPI (the "Sale"). Does not reflect a sale by the Reporting Person.

F3: This transaction reflects the distribution of shares of the common stock (the "Common Stock") of Avantor, Inc. pursuant to a pro rata distribution-in-kind by the GS Funds (the "Distribution-in-Kind").

F4: This transaction reflects the receipt of shares of Common Stock by the Reporting Person pursuant to the pro rata Distribution-in-Kind.

F5: After giving effect to the Distribution-in-Kind and the Sale on May 11, 2021, Goldman Sachs and GS Group may be deemed to beneficially own indirectly 99,243 shares of Common Stock by reason of the direct beneficial ownership of such shares as follows: (i) GS Fund Holdings owns directly 97,602 shares of Common Stock, (ii) StoneBridge 2017 owns directly 338 shares of Common Stock, (iii) StoneBridge 2017 Offshore owns directly 151 shares of Common Stock, (iv) VWR owns directly 547 shares of Common Stock, (v) StoneBridge 2018 owns directly 457 shares of Common Stock and (vi) StoneBridge 2018 Offshore owns directly 148 shares of Common Stock.

F6: The Reporting Person disclaims beneficial ownership of the securities reported herein except to the extent of the Reporting Person's pecuniary interest therein, if any, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Exchange Act of 1934, or for any other purpose.