{"transactions":[{"id":3152902,"issuer":{"id":5472,"kind":"organization","name":"Mayville Engineering Company, Inc."},"owners":[{"id":149311,"kind":"person","name":"St. Peter John A","position":1,"cik":"0001776171","reported_name":"St. Peter John A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Director Restricted Stock Units","published_at":"2020-05-12T18:24:28.000Z","date":"2020-05-08","kind":"exercise","acquired":true,"shares":5883,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The restricted stock units will vest 100% on May 8, 2020."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The restricted stock units will vest 100% on May 8, 2020."}],"balance_after":0,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":5883},"source":{"system":"sec-edgar","filing":"0001567619-20-009639","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1776171/000156761920009639/doc1.xml","form_type":"4"}},{"id":3152901,"issuer":{"id":5472,"kind":"organization","name":"Mayville Engineering Company, Inc."},"owners":[{"id":149311,"kind":"person","name":"St. Peter John A","position":1,"cik":"0001776171","reported_name":"St. Peter John A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-05-12T18:24:28.000Z","date":"2020-05-08","kind":"exercise","acquired":true,"shares":5883,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":8383,"source":{"system":"sec-edgar","filing":"0001567619-20-009639","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1776171/000156761920009639/doc1.xml","form_type":"4"}},{"id":3209121,"issuer":{"id":5472,"kind":"organization","name":"Mayville Engineering Company, Inc."},"owners":[{"id":149311,"kind":"person","name":"St. Peter John A","position":1,"cik":"0001776171","reported_name":"St. Peter John A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2020-03-16T14:59:35.000Z","date":"2020-03-13","kind":"purchase","acquired":true,"shares":2000,"price":5.2756,"value":10551.2,"ownership":{"direct":true},"footnotes":[{"field":"price","element":"transactionPricePerShare","label":"F1","text":"The price in Column 4 is a weighted average price. The prices actually received ranged from $5.2496 to $5.2796. The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares purchased at each price within the range for all transactions reported in this Form 4 utilizing an average weighted price."}],"balance_after":2500,"source":{"system":"sec-edgar","filing":"0001567619-20-006405","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1776171/000156761920006405/doc1.xml","form_type":"4"}},{"id":3526200,"issuer":{"id":5472,"kind":"organization","name":"Mayville Engineering Company, Inc."},"owners":[{"id":149311,"kind":"person","name":"St. Peter John A","position":1,"cik":"0001776171","reported_name":"St. Peter John A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Director Restricted Stock Units","published_at":"2019-05-15T16:32:04.000Z","date":"2019-05-13","kind":"grant","acquired":true,"shares":5883,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The restricted stock units will vest 100% on May 8, 2020."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The restricted stock units will vest 100% on May 8, 2020."}],"balance_after":5883,"derivative":{"exercise_price":0,"underlying":"Common Stock","underlying_shares":5883},"source":{"system":"sec-edgar","filing":"0001567619-19-011268","document":"doc1.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1776171/000156761919011268/doc1.xml","form_type":"4"}},{"id":3526199,"issuer":{"id":5472,"kind":"organization","name":"Mayville Engineering Company, Inc."},"owners":[{"id":149311,"kind":"person","name":"St. Peter John A","position":1,"cik":"0001776171","reported_name":"St. Peter John A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2019-05-15T16:32:04.000Z","date":"2019-05-13","kind":"purchase","acquired":true,"shares":500,"price":17,"value":8500.0,"ownership":{"direct":true},"balance_after":500,"source":{"system":"sec-edgar","filing":"0001567619-19-011268","document":"doc1.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1776171/000156761919011268/doc1.xml","form_type":"4"}}]}