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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) through (7) to this Form 4."}],"balance_after":184231,"source":{"system":"sec-edgar","filing":"0001786790-26-000008","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000178679026000008/primarydocument.xml","form_type":"4"}},{"id":780384,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-05-13T21:42:59.000Z","date":"2026-05-11","kind":"sale","planned":true,"acquired":false,"shares":636,"price":80.0063,"value":50884.0068,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. 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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), (4) and (5) to this Form 4."}],"balance_after":188415,"source":{"system":"sec-edgar","filing":"0001786790-26-000006","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000178679026000006/primarydocument.xml","form_type":"4"}},{"id":845474,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-03-12T21:04:25.000Z","date":"2026-03-10","kind":"grant","planned":false,"acquired":true,"shares":29064,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock unit (\"RSU\") grant. 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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 (4), (5), (6) and (7) to this Form 4."}],"balance_after":187266,"source":{"system":"sec-edgar","filing":"0001786790-26-000003","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000178679026000003/primarydocument.xml","form_type":"4"}},{"id":879245,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-27T00:19:23.000Z","date":"2026-02-24","kind":"grant","planned":true,"acquired":true,"shares":54428,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents restricted stock units (\"RSU\") that were granted in March 2025 subject to performance-based vesting conditions pertaining to 2025 performance, the achievement of which was certified by the Board on February 24, 2026. Of these RSUs, 1/3rd of the shares vested on February 24, 2026, and the remainder of the shares underlying the RSUs will vest in equal installments on each of February 24, 2027 and February 24, 2028, subject to the reporting person's continuous service."}],"balance_after":188226,"source":{"system":"sec-edgar","filing":"0001786790-26-000003","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000178679026000003/primarydocument.xml","form_type":"4"}},{"id":919019,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-02-04T21:27:43.000Z","date":"2026-02-02","kind":"sale","planned":true,"acquired":false,"shares":498,"price":59.2975,"value":29530.155,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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 90 days prior to the trading date."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. 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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) and (3) to this Form 4."}],"balance_after":134296,"source":{"system":"sec-edgar","filing":"0001786790-26-000002","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000178679026000002/primarydocument.xml","form_type":"4"}},{"id":945642,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-06T21:50:52.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":1113,"price":67.6923,"value":75341.5299,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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 90 days prior to the trading date."},{"field":"kind","element":"transactionCoding","label":"F4","text":"These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F9","text":"The price reported in Column 4 is a weighted average price. 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These shares were sold in multiple transactions at prices ranging from $64.005 to $64.47, inclusive."}],"balance_after":139748,"source":{"system":"sec-edgar","filing":"0001786790-26-000001","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000178679026000001/primarydocument.xml","form_type":"4"}},{"id":945638,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-06T21:50:52.000Z","date":"2026-01-05","kind":"sale","planned":true,"acquired":false,"shares":455,"price":63.3543,"value":28826.2065,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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 90 days prior to the trading date."},{"field":"kind","element":"transactionCoding","label":"F4","text":"These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. 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These shares were sold in multiple transactions at prices ranging from $61.785 to $62.625, inclusive."}],"balance_after":140600,"source":{"system":"sec-edgar","filing":"0001786790-26-000001","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000178679026000001/primarydocument.xml","form_type":"4"}},{"id":945636,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2026-01-06T21:50:52.000Z","date":"2026-01-02","kind":"sale","planned":true,"acquired":false,"shares":188,"price":60.8312,"value":11436.2656,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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 90 days prior to the trading date."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $60.24 to $61.205, 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), (5), (6), (7), (8) and (9) to this Form 4."}],"balance_after":141010,"source":{"system":"sec-edgar","filing":"0001786790-26-000001","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000178679026000001/primarydocument.xml","form_type":"4"}},{"id":981060,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-12-03T21:17:36.000Z","date":"2025-12-01","kind":"sale","planned":true,"acquired":false,"shares":52,"price":56.8635,"value":2956.902,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. 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These shares were sold in multiple transactions at prices ranging from $55.51 to $56.50, 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) and (3) to this Form 4."}],"balance_after":141250,"source":{"system":"sec-edgar","filing":"0001786790-25-000005","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000178679025000005/primarydocument.xml","form_type":"4"}},{"id":1003415,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-11-10T21:33:30.000Z","date":"2025-11-07","kind":"sale","planned":true,"acquired":false,"shares":76,"price":64.4739,"value":4900.0164,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"price","element":"transactionPricePerShare","label":"F5","text":"The price reported in Column 4 is a weighted average price. 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These shares were sold in multiple transactions at prices ranging from $49.17 to $49.97, 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) and (3) to this Form 4."}],"balance_after":144508,"source":{"system":"sec-edgar","filing":"0001562180-25-006074","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000156218025006074/primarydocument.xml","form_type":"4"}},{"id":1177368,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2025-04-04T20:35:18.000Z","date":"2025-04-02","kind":"sale","planned":true,"acquired":false,"shares":1346,"price":25.1309,"value":33826.1914,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"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."},{"field":"kind","element":"transactionCoding","label":"F2","text":"These shares were sold by the reporting person to cover tax withholding obligations in connection with the vesting of restricted stock units."},{"field":"price","element":"transactionPricePerShare","label":"F3","text":"The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $24.74 to $25.455, inclusive. 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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 (3) and (4) to this Form 4."}],"balance_after":102857,"source":{"system":"sec-edgar","filing":"0001562180-25-000173","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000156218025000173/primarydocument.xml","form_type":"4"}},{"id":1571884,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-03-18T23:35:53.000Z","date":"2024-03-14","kind":"grant","planned":false,"acquired":true,"shares":71810,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F3","text":"Represents a restricted stock unit (\"RSU\") grant. Sixty percent of the shares underlying the RSUs will vest on March 1, 2025, 30% will vest on March 1, 2026 and the remainder of the shares underlying the RSUs will vest on March 1, 2027, subject to the Reporting Person's continuous service."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Each RSU represents a contingent right to receive one share of the Class A Common Stock of the Issuer."}],"balance_after":107715,"source":{"system":"sec-edgar","filing":"0001562180-24-002783","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000156218024002783/primarydocument.xml","form_type":"4"}},{"id":1571883,"issuer":{"id":1915,"kind":"organization","name":"Xometry, Inc.","symbol":"XMTR"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Chief Financial Officer"}}],"security":"Class A Common Stock","published_at":"2024-03-18T23:35:53.000Z","date":"2024-03-14","kind":"grant","planned":false,"acquired":true,"shares":35905,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents a restricted stock unit (\"RSU\") grant. One quarter (1/4) of the shares underlying the RSUs will vest on January 1, 2025 and the remainder of the shares underlying the RSUs vest quarterly for the 3 years thereafter, subject to the Reporting Person's continuous service."},{"field":"price","element":"transactionPricePerShare","label":"F2","text":"Each RSU represents a contingent right to receive one share of the Class A Common Stock of the Issuer."}],"balance_after":35905,"source":{"system":"sec-edgar","filing":"0001562180-24-002783","document":"primarydocument.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1657573/000156218024002783/primarydocument.xml","form_type":"4"}},{"id":3288290,"issuer":{"id":1782,"kind":"organization","name":"YELP INC","symbol":"YELP"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Interim CFO"}}],"security":"Common Stock","published_at":"2020-02-05T22:47:10.000Z","date":"2020-02-03","kind":"sale","acquired":false,"shares":1201,"price":32.7,"value":39272.7,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Shares were sold pursuant to a duly adopted 10b5-1 trading plan adopted by the reporting person on November 13, 2019."}],"balance_after":36690,"source":{"system":"sec-edgar","filing":"0001209191-20-007018","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1345016/000120919120007018/doc4.xml","form_type":"4"}},{"id":3360914,"issuer":{"id":1782,"kind":"organization","name":"YELP INC","symbol":"YELP"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Interim CFO"}}],"security":"Common Stock","published_at":"2019-11-22T21:36:56.000Z","date":"2019-11-20","kind":"tax_withholding","acquired":false,"shares":635,"price":34.23,"value":21736.05,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of certain RSUs, previously reported in Table I following the date of grant."}],"balance_after":37891,"source":{"system":"sec-edgar","filing":"0001209191-19-057807","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1345016/000120919119057807/doc4.xml","form_type":"4"}},{"id":3416034,"issuer":{"id":1782,"kind":"organization","name":"YELP INC","symbol":"YELP"},"owners":[{"id":25334,"kind":"person","name":"Miln James","position":1,"cik":"0001786790","reported_name":"Miln James","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Interim CFO"}}],"security":"Common Stock","published_at":"2019-09-13T00:05:40.000Z","date":"2019-09-11","kind":"grant","acquired":true,"shares":14688,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents the grant of restricted stock units that vest in equal quarterly installments over two years measured from August 20, 2019."}],"balance_after":38526,"source":{"system":"sec-edgar","filing":"0001209191-19-049391","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1345016/000120919119049391/doc4.xml","form_type":"4"}}]}