X0306 4 2019-09-16 0 0001770787 10x Genomics, Inc. TXG 0001786391 Hindson Benjamin J. C/O 10X GENOMICS, INC. 6230 STONERIDGE MALL ROAD PLEASANTON CA 94588 1 1 0 0 See Remarks Class A Common Stock 2019-09-16 4 J 0 3000000 0.00 D Class B Common Stock 3000000 0 D Class B Common Stock 2019-09-16 4 J 0 3000000 0.00 A Class A Common Stock 3000000 3000000 D Stock Option (right to buy) 0.88 2019-09-16 4 J 0 450000 0.00 D 2025-10-27 Class B Common Stock 450000 0 D Stock Option (right to buy) 0.88 2019-09-16 4 J 0 450000 0.00 A 2025-10-27 Class A Common Stock 450000 450000 D Stock Option (right to buy) 1.07 2019-09-16 4 J 0 125000 0.00 D 2026-11-18 Class B Common Stock 125000 0 D Stock Option (right to buy) 1.07 2019-09-16 4 J 0 125000 0.00 A 2026-11-18 Class A Common Stock 125000 125000 D Stock Option (right to buy) 1.20 2019-09-16 4 J 0 200000 0.00 D 2027-10-18 Class B Common Stock 200000 0 D Stock Option (right to buy) 1.20 2019-09-16 4 J 0 200000 0.00 A 2027-10-18 Class A Common Stock 200000 200000 D Stock Option (right to buy) 5.04 2019-09-16 4 J 0 175000 0.00 D 2028-11-02 Class B Common Stock 175000 0 D Stock Option (right to buy) 5.04 2019-09-16 4 J 0 175000 0.00 A 2028-11-02 Class A Common Stock 175000 175000 D Stock Option (right to buy) 11.48 2019-09-16 4 J 0 100000 0.00 D 2029-05-10 Class B Common Stock 100000 0 D Stock Option (right to buy) 11.48 2019-09-16 4 J 0 100000 0.00 A 2029-05-10 Class A Common Stock 100000 100000 D Pursuant to a reclassification exempt under Rule 16b-7, each share of Class A Common Stock was reclassified into one share of Class B Common Stock immediately prior to the completion of the Issuer's initial public offering. 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. Pursuant to a reclassification exempt under Rule 16b-7, each share of Class B Common Stock was reclassified into one share of Class A Common Stock immediately prior to the completion of the Issuer's initial public offering. All of the shares subject to the option are fully vested and exercisable as of the date hereof. One-fourth of the shares subject to the option vested on August 1, 2017 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. One forty-eighth of the shares subject to the option vested on October 1, 2017 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. One forty-eighth of the shares subject to the option vested 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. One forty-eighth of the shares subject to the option vested 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. Chief Scientific Officer and President /s/ Eric S. Whitaker, as Attorney-in-Fact 2019-09-16