10x Genomics, Inc. — Director's Dealing 2021

May 5, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 10x Genomics, Inc. (TXG)
CIK: 0001770787
Period of Report: 2021-05-04

Reporting Person: Saxonov Serge (Director, Chief Executive Officer, 10% Owner)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-04	Class A Common Stock	M	5208	$5.04	Acquired	885676	Direct
2021-05-04	Class A Common Stock	M	9792	$11.48	Acquired	895468	Direct
2021-05-04	Class A Common Stock	S	200	$179.705	Disposed	895268	Direct
2021-05-04	Class A Common Stock	S	505	$180.9354	Disposed	894763	Direct
2021-05-04	Class A Common Stock	S	1200	$182.1417	Disposed	893563	Direct
2021-05-04	Class A Common Stock	S	2100	$183.0561	Disposed	891463	Direct
2021-05-04	Class A Common Stock	S	6644	$184.2045	Disposed	884819	Direct
2021-05-04	Class A Common Stock	S	2951	$185.0363	Disposed	881868	Direct
2021-05-04	Class A Common Stock	S	1100	$185.9132	Disposed	880768	Direct
2021-05-04	Class A Common Stock	S	100	$186.75	Disposed	880668	Direct
2021-05-04	Class A Common Stock	S	200	$188.745	Disposed	880468	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-05-04	Stock Option (right to buy)	$5.04	M	5208	Disposed	2028-11-02	Class A Common Stock (5208)	Direct
2021-05-04	Stock Option (right to buy)	$11.48	M	9792	Disposed	2029-05-10	Class A Common Stock (9792)	Direct

Footnotes

F1: The option exercises and sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan entered into by the Reporting Person.

F2: This transaction was executed in multiple trades at prices ranging from $179.42 to $179.99. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

F3: This transaction was executed in multiple trades at prices ranging from $180.51 to $181.08. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

F4: This transaction was executed in multiple trades at prices ranging from $181.53 to $182.50. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

F5: This transaction was executed in multiple trades at prices ranging from $182.56 to $183.55. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

F6: This transaction was executed in multiple trades at prices ranging from $183.61 to $184.60. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

F7: This transaction was executed in multiple trades at prices ranging from $184.61 to $185.59. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

F8: This transaction was executed in multiple trades at prices ranging from $185.61 to $186.37. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

F9: This transaction was executed in multiple trades at prices ranging from $188.61 to $188.88. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price.

F10: This option, originally for 250,000 shares, of which 160,218 have been exercised, vested as to one forty-eighth of the shares on October 1, 2018, and one-forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.

F11: This option, originally for 145,786 shares, of which 48,490 have been exercised, vested as to one forty-eighth of the shares on May 1, 2019, and one-forty-eighth of the shares subject to the option vest each month thereafter, subject to the Reporting Person continuing as a service provider through each such date.