10x Genomics, Inc. — Director's Dealing 2020

May 2, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 10x Genomics, Inc. (TXG)
CIK: 0001770787
Period of Report: 2020-05-01

Reporting Person: Venrock Associates VI, L.P. (10% Owner)
Reporting Person: Venrock Partners VI, L.P. (10% Owner)
Reporting Person: Venrock Management VI, LLC (10% Owner)
Reporting Person: Venrock Partners Management VI, LLC (10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-01	Class A Common Stock	C	1287825	—	Acquired	1287825	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-01	Class B Common Stock	$	C	1287825	Disposed		Class A Common Stock (1287825)	Indirect

Footnotes

F1: Each share of Class B Common Stock is convertible at any time at the option of the Reporting Person into one share of Class A Common Stock and has no expiration date. Additionally, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon transfer, whether or not for value (subject to certain exceptions) and upon the occurrence of certain other events set forth in the Issuer's Amended and Restated Certificate of Incorporation.

F2: Represents (a) 9,090,261 shares of Class B common stock held by Venrock Associates VI, L.P. ("VA VI") and (b) 713,730 shares of Class B common stock held by Venrock Partners VI, L.P. ("VP VI"). Venrock Management VI, LLC ("VM VI") is the sole general partner of VA VI. Venrock Partners Management VI, LLC ("VPM VI") is the sole general partner of VP VI. VM VI and VPM VI disclaim beneficial ownership over all shares held by VA VI and VP VI, respectively, except to the extent of their indirect pecuniary interests therein.

F3: Represents (a) 1,194,071 shares of Class A common stock held by VA VI and (b) 93,754 shares of Class A common stock held by VP VI. VM VI is the sole general partner of VA VI. VPM VI is the sole general partner of VP VI. VM VI and VPM VI disclaim beneficial ownership over all shares held by VA VI and VP VI, respectively, except to the extent of their indirect pecuniary interests therein.