X0508 4 2023-12-13 0 0001679788 Coinbase Global, Inc. COIN 0001851492 Armstrong Brian C/O COINBASE GLOBAL, INC. NOT APPLICABLE DE 1 1 1 0 Chairman and CEO 0001856705 Brian Armstrong Living Trust C/O COINBASE GLOBAL, INC. NOT APPLICABLE DE 0 0 1 0 1 Class A Common Stock 2023-12-13 4 C 0 9153 0.00 A 9153 I By The Brian Armstrong Living Trust Class A Common Stock 2023-12-13 4 S 0 9153 150.0082 D 0 I By The Brian Armstrong Living Trust Class B Common Stock 2023-12-13 4 C 0 9153 0.00 D Class A Common Stock 9153 26654722 I By The Brian Armstrong Living Trust Class B Common Stock Class A Common Stock 3008393 3008393 I The Ehrsam 2014 Irrevocable Trust Represents the conversion of Class B Common Stock held of record by The Brian Armstrong Living Trust into Class A Common Stock. The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 16, 2023, during an open trading window. Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date. Represents the weighted average sale price. The lowest price at which shares were sold was $150.00 and the highest price at which shares were sold was $150.05. The Reporting Person undertakes to provide upon request to the staff of the Securities and Exchange Commission, the Issuer or its stockholders, full information regarding the total number of shares sold at each separate price within the range set forth herein. /s/ Brian Armstrong, by Doug Sharp, Attorney-in-Fact 2023-12-15 /s/ The Brian Armstrong Living Trust, by Doug Sharp, Attorney-in-Fact 2023-12-15