X0306 4/A 2022-06-08 2022-06-13 false 0001657573 Xometry, Inc. XMTR 0001869814 Altschuler Randolph C/O XOMETRY, INC. 7529 STANDISH PLACE, SUITE 200 DERWOOD MD 20855 true true false false Chief Executive Officer Class A Common Stock 2022-06-08 4 S false 144.00 34.1743 D 342389.00 I Held by The Matthew Sladkin Altschuler 2012 Trust Class A Common Stock 2022-06-08 4 S false 1245.00 35.0016 D 341144.00 I Held by The Matthew Sladkin Altschuler 2012 Trust Class A Common Stock 2022-06-08 4 S false 611.00 35.6681 D 340533.00 I Held by The Matthew Sladkin Altschuler 2012 Trust Represents shares sold in a transaction that was effected automatically pursuant to a Rule 10b-5 trading plan adopted by The Matthew Sladkin Altschuler 2012 Trust at least 14 days prior to the trading date. This amendment is filed to correct certain erroneous lines in the Form 4 filed on June 13, 2022 reporting sales on June 8, 2022. This amendment corrects the number of shares sold and/or the amount of securities beneficially owned following a transaction for certain of the indirectly owned securities. This amended report does not report any new transactions or otherwise modify the transaction details that were previously reported. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $33.32 to $34.30, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $34.48 to $35.40, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.48 to $36.02, inclusive. /s/ Kristie Scott, Attorney-in-Fact 2022-06-13