X0508 4 2026-03-02 false 0001657573 Xometry, Inc. XMTR 0001786790 Miln James C/O XOMETRY, INC. 6116 EXECUTIVE BLVD, SUITE 800 NORTH BETHESDA MD 20852 false true false false Chief Financial Officer true Class A Common Stock 2026-03-02 4 S false 262.00 41.261 D 172861.00 D Class A Common Stock 2026-03-02 4 S false 984.00 42.0632 D 171877.00 D Class A Common Stock 2026-03-02 4 S false 254.00 42.5871 D 171623.00 D Class A Common Stock 2026-03-02 4 S false 1400.00 41.042 D 170223.00 D Class A Common Stock 2026-03-02 4 S false 8174.00 42.0801 D 162049.00 D Class A Common Stock 2026-03-02 4 S false 1198.00 42.5645 D 160851.00 D 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 90 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 $40.50 to $41.405, 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 in the ranges set forth in footnotes (2), (3), (4), (6), (7) and (8) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.52 to $42.43, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.54 to $42.63, inclusive. These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of restricted stock units. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.50 to $41.405, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $41.52 to $42.505, inclusive. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.525 to $42.71, inclusive. /s/ Kristie Scott, Attorney-in-Fact 2026-03-03