X0306 4 2022-03-28 false 0001657573 Xometry, Inc. XMTR 0001352659 Rallo James M C/O XOMETRY, INC. 7529 STANDISH PLACE, SUITE 200 DERWOOD MD 20855 false true false false Chief Financial Officer Class A Common Stock 2022-03-28 4 M false 3434.00 3.65 A 25121.00 D Class A Common Stock 2022-03-28 4 M false 2283.00 3.65 A 27404.00 D Class A Common Stock 2022-03-28 4 S false 2283.00 35.0586 D 25121.00 D Class A Common Stock 2022-03-28 4 S false 3434.00 35.0586 D 21687.00 D Class A Common Stock 2022-03-29 4 M false 17812.00 3.65 A 39499.00 D Class A Common Stock 2022-03-29 4 S false 17812.00 35.00 D 21687.00 D Stock Option (Right to Buy) 3.65 2022-03-28 4 M false 2283.00 0.00 D 2030-05-05 Class A Common Stock 2283.00 385952.00 D Stock Option (Right to Buy) 3.65 2022-03-28 4 M false 3434.00 0.00 D 2030-05-05 Class A Common Stock 3434.00 382518.00 D Stock Option (Right to Buy) 3.65 2022-03-29 4 M false 17812.00 0.00 D 2030-05-05 Class A Common Stock 17812.00 364706.00 D The transaction reported in this Form 4 was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person at least 30 days prior to the trading date. Represents shares sold in a transaction that was effected automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person at least 30 days prior to the trading date. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.00 to $35.80, inclusive. The reporting person undertakes to provide to Xometry, Inc., any security holder of Xometry, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within this price range. One quarter (1/4) of the shares vested on April 13, 2021, and thereafter, the remainder of the shares vest in 36 monthly installments, subject to the Reporting Person's continuous service. /s/ Kristie Scott, Attorney-in-Fact 2022-03-30