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person · Reporting owner

Butz Todd M

Disclosed activity across 2 companies

Tapewire entity
73803
SEC CIK
0001775975

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Aptera Motors CorpSEV · Entity 6800DirectorOctober 28, 2025October 29, 2025
Mayville Engineering Company, Inc.MEC · Entity 5472Chief Financial OfficerMarch 15, 2025March 18, 2025

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Aptera Motors Corp

Report date October 28, 2025 · Filed October 29, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect73,068 Reported balance After 2025-10-28 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2025-10-28 · Grant · Acquired 73,068 · Balance 73,068

F1: Each Restricted Stock Unit ("RSU") represents the right to receive one share of Class B Common Stock.

F2: On October 28, 2025, the reporting person was granted 73,068 RSUs that vest as follows: 15,761 RSUs vested on October 28, 2025; 14,327 RSUs vest on October 28, 2026, 14,327 RSUs vest on October 28, 2027, 14,327 RSUs vest on October 28, 2028 and the remaining 14,326 RSUs vest on October 28, 2029. Vesting is contingent on the reporting person's continuous service through each applicable vesting date. The RSUs do not have an expiration date.

Filing footnotes · ownership attribution and instrument terms

F1: Each Restricted Stock Unit ("RSU") represents the right to receive one share of Class B Common Stock.

F2: On October 28, 2025, the reporting person was granted 73,068 RSUs that vest as follows: 15,761 RSUs vested on October 28, 2025; 14,327 RSUs vest on October 28, 2026, 14,327 RSUs vest on October 28, 2027, 14,327 RSUs vest on October 28, 2028 and the remaining 14,326 RSUs vest on October 28, 2029. Vesting is contingent on the reporting person's continuous service through each applicable vesting date. The RSUs do not have an expiration date.

Mayville Engineering Company, Inc.

Report date March 15, 2025 · Filed March 18, 2025

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect173,743 Ending reported balance After 2025-03-15 transaction · row 2
2 source rows · reconciled sequence

Row 1 · 2025-03-15 · Exercise / conversion · Acquired 17,614 · Balance 179,380

Row 2 · 2025-03-15 · Tax withholding · Disposed 5,637 · Balance 173,743

Restricted Stock UnitsSEC Table II · derivative / convertible security · Conversion / exercise price $0.00Direct35,227 Reported balance After 2025-03-15 transaction · row 4 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 4 · 2025-03-15 · Exercise / conversion · Disposed 17,614 · Balance 35,227

F2: The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.

Common StockSEC Table I · non-derivativeIndirectby ESOP and/or 401(k) Plan40,998 Reported balance Holding disclosure · report date 2025-03-15 · row 3 Holding and transaction disclosures are not merged.
1 source row

Row 3 · Balance 40,998

F1: Reflects the most recent ESOP and 401(k) balance.

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $17.00 · Expires 2029-05-08Direct39,127 Reported balance Holding disclosure · report date 2025-03-15 · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · Balance 39,127

F3: The options will vest 50% on each of May 8, 2020 and May 8, 2021.

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $14.01 · Expires 2031-02-28Direct39,683 Reported balance Holding disclosure · report date 2025-03-15 · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · Balance 39,683

F4: The options will vest 50% on each of February 28, 2022 and February 28, 2023.

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $10.32 · Expires 2032-02-28Direct69,963 Reported balance Holding disclosure · report date 2025-03-15 · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · Balance 69,963

F5: The options will vest 50% on each of February 28, 2023 and February 28, 2024

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $16.22 · Expires 2033-02-28Direct40,410 Reported balance Holding disclosure · report date 2025-03-15 · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · Balance 40,410

F6: The options will vest 50% on each of February 28, 2024 and February 28, 2025.

Filing footnotes · ownership attribution and instrument terms

F1: Reflects the most recent ESOP and 401(k) balance.

F2: The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.

F3: The options will vest 50% on each of May 8, 2020 and May 8, 2021.

F4: The options will vest 50% on each of February 28, 2022 and February 28, 2023.

F5: The options will vest 50% on each of February 28, 2023 and February 28, 2024

F6: The options will vest 50% on each of February 28, 2024 and February 28, 2025.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
October 28, 2025 Filed Oct 29, 2025 20:31 UTC Aptera Motors Corp SEV · Entity 6800 GrantRestricted Stock Units · Derivative 73,068 $0.00 $0.00
Disclosure

SEC source: 0001493152-25-020085 · ownership.xml · derivative · entry 1

Butz Todd M · CIK 0001775975 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 73,068

Underlying: Class B Common Stock · 73,068 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents the right to receive one share of Class B Common Stock.

F2 · derivative.exercise_date: On October 28, 2025, the reporting person was granted 73,068 RSUs that vest as follows: 15,761 RSUs vested on October 28, 2025; 14,327 RSUs vest on October 28, 2026, 14,327 RSUs vest on October 28, 2027, 14,327 RSUs vest on October 28, 2028 and the remaining 14,326 RSUs vest on October 28, 2029. Vesting is contingent on the reporting person's continuous service through each applicable vesting date. The RSUs do not have an expiration date.

F2 · derivative.expiration_date: On October 28, 2025, the reporting person was granted 73,068 RSUs that vest as follows: 15,761 RSUs vested on October 28, 2025; 14,327 RSUs vest on October 28, 2026, 14,327 RSUs vest on October 28, 2027, 14,327 RSUs vest on October 28, 2028 and the remaining 14,326 RSUs vest on October 28, 2029. Vesting is contingent on the reporting person's continuous service through each applicable vesting date. The RSUs do not have an expiration date.

Read SEC document
March 15, 2025 Filed Mar 18, 2025 21:27 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 17,614 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000897069-25-000636 · form4.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,227

Underlying: Common Stock · 17,614 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.

F2 · derivative.expiration_date: The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.

Read SEC document
March 15, 2025 Filed Mar 18, 2025 21:27 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Tax withholdingCommon Stock 5,637 $14.35 $80,890.95
Disclosure

SEC source: 0000897069-25-000636 · form4.xml · nonDerivative · entry 2

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 173,743

Read SEC document
March 15, 2025 Filed Mar 18, 2025 21:27 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionCommon Stock 17,614 $0.00 $0.00
Disclosure

SEC source: 0000897069-25-000636 · form4.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 179,380

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 28, 2025 Filed Mar 4, 2025 23:50 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 11,560 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000897069-25-000473 · form4.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,560 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 28, 2024 and February 28, 2025.

F2 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 28, 2024 and February 28, 2025.

Read SEC document
February 28, 2025 Filed Mar 4, 2025 23:50 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Tax withholdingCommon Stock 3,700 $14.95 $55,315.00
Disclosure

SEC source: 0000897069-25-000473 · form4.xml · nonDerivative · entry 2

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 161,766

Read SEC document
February 28, 2025 Filed Mar 4, 2025 23:50 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionCommon Stock 11,560 $0.00 $0.00
Disclosure

SEC source: 0000897069-25-000473 · form4.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 165,466

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 07, 2024 Filed Nov 8, 2024 19:38 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 PurchaseCommon Stock 1,272 $15.79 $20,078.90
Disclosure

SEC source: 0000897069-24-002131 · form4.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Indirect · by ESOP and/or 401(k) Plan

Disclosed balance after: 40,998

F1 · balance_after: Reflects the most recent ESOP and 401(k) balance.

Read SEC document
August 21, 2024 Filed Aug 22, 2024 21:17 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionStock Option (right to buy) · Derivative 88,029 $0.00 Strike: $7.12 $0.00
Disclosure

SEC source: 0000897069-24-001735 · form4.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 88,029 shares

Expires 2030-02-27

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The options will vest 50% on each of February 27, 2021 and February 27, 2022.

Read SEC document
August 21, 2024 Filed Aug 22, 2024 21:17 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Tax withholdingCommon Stock 58,719 $19.15 $1,124,468.85
Disclosure

SEC source: 0000897069-24-001735 · form4.xml · nonDerivative · entry 2

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 153,906

Read SEC document
August 21, 2024 Filed Aug 22, 2024 21:17 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionCommon Stock 88,029 $0.00 $0.00
Disclosure

SEC source: 0000897069-24-001735 · form4.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 212,625

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 15, 2024 Filed Mar 19, 2024 20:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 GrantRestricted Stock Units · Derivative 52,841 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000897069-24-000718 · form4.xml · derivative · entry 3

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,841

Underlying: Common Stock · 52,841 shares

Expires not disclosed

F2 · derivative.exercise_date: The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.

F2 · derivative.expiration_date: The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.

Read SEC document
February 28, 2024 Filed Mar 1, 2024 21:47 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 11,560 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000897069-24-000544 · form4.xml · derivative · entry 5

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,560

Underlying: Common Stock · 11,560 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 28, 2024 and February 28, 2025.

F3 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 28, 2024 and February 28, 2025.

Read SEC document
February 28, 2024 Filed Mar 1, 2024 21:47 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 18,168 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0000897069-24-000544 · form4.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18,168 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 28, 2023 and February 28, 2024.

F2 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 28, 2023 and February 28, 2024.

Read SEC document
February 28, 2024 Filed Mar 1, 2024 21:47 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Tax withholdingCommon Stock 9,512 $11.97 $113,858.64
Disclosure

SEC source: 0000897069-24-000544 · form4.xml · nonDerivative · entry 2

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 124,596

Read SEC document
February 28, 2024 Filed Mar 1, 2024 21:47 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionCommon Stock 29,728 $0.00 $0.00
Disclosure

SEC source: 0000897069-24-000544 · form4.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 134,108

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 28, 2023 Filed Mar 2, 2023 23:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 GrantStock Option (right to buy) · Derivative 40,410 $0.00 Strike: $16.22 $0.00
Disclosure

SEC source: 0001567619-23-004260 · doc1.xml · derivative · entry 7

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,410

Underlying: Common Stock · 40,410 shares

Expires 2033-02-28

F5 · derivative.exercise_date: The options will vest 50% on each of February 28, 2024 and February 28, 2025.

Read SEC document
February 28, 2023 Filed Mar 2, 2023 23:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 GrantRestricted Stock Units · Derivative 23,120 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-23-004260 · doc1.xml · derivative · entry 6

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,120

Underlying: Common Stock · 23,120 shares

Expires not disclosed

F4 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 28, 2024 and February 28, 2025.

F4 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 28, 2024 and February 28, 2025.

Read SEC document
February 28, 2023 Filed Mar 2, 2023 23:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 18,169 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-23-004260 · doc1.xml · derivative · entry 5

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,168

Underlying: Common Stock · 18,169 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 28, 2023 and February 28, 2024.

F3 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 28, 2023 and February 28, 2024.

Read SEC document
February 28, 2023 Filed Mar 2, 2023 23:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 9,814 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-23-004260 · doc1.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 9,814 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 28, 2022 and February 28, 2023.

F2 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 28, 2022 and February 28, 2023.

Read SEC document
February 28, 2023 Filed Mar 2, 2023 23:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Tax withholdingCommon Stock 8,954 $16.06 $143,801.24
Disclosure

SEC source: 0001567619-23-004260 · doc1.xml · nonDerivative · entry 2

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 104,380

Read SEC document
February 28, 2023 Filed Mar 2, 2023 23:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionCommon Stock 27,983 $0.00 $0.00
Disclosure

SEC source: 0001567619-23-004260 · doc1.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 113,334

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
August 10, 2022 Filed Aug 11, 2022 16:26 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 PurchaseCommon Stock 2,000 $7.25 $14,499.20
Disclosure

SEC source: 0001567619-22-015541 · doc1.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,351

Read SEC document
February 28, 2022 Filed Mar 3, 2022 00:34 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 9,815 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-22-006114 · doc1.xml · derivative · entry 5

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 9,814

Underlying: Common Stock · 9,815 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 28, 2022 and February 28, 2023.

F3 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 28, 2022 and February 28, 2023.

Read SEC document
February 28, 2022 Filed Mar 3, 2022 00:34 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 17,556 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-22-006114 · doc1.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 17,556 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 27, 2021 and February 27, 2022.

F2 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 27, 2021 and February 27, 2022.

Read SEC document
February 28, 2022 Filed Mar 3, 2022 00:34 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Tax withholdingCommon Stock 8,758 $10.32 $90,382.56
Disclosure

SEC source: 0001567619-22-006114 · doc1.xml · nonDerivative · entry 2

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 83,351

Read SEC document
February 28, 2022 Filed Mar 3, 2022 00:34 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionCommon Stock 27,371 $0.00 $0.00
Disclosure

SEC source: 0001567619-22-006114 · doc1.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 92,109

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 28, 2022 Filed Mar 18, 2022 21:15 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 GrantStock Option (right to buy) · Derivative 69,963 $0.00 Strike: $10.32 $0.00
Disclosure

SEC source: 0001567619-22-007229 · doc1.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 69,963

Underlying: Common Stock · 69,963 shares

Expires 2032-02-28

F3 · derivative.exercise_date: The options will vest 50% on each of February 28, 2023 and February 28, 2024.

Read SEC document
February 28, 2022 Filed Mar 18, 2022 21:15 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 GrantRestricted Stock Units · Derivative 36,337 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-22-007229 · doc1.xml · derivative · entry 3

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,337

Underlying: Common Stock · 36,337 shares

Expires not disclosed

F2 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 28, 2023 and February 28, 2024.

F2 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 28, 2023 and February 28, 2024.

Read SEC document
May 08, 2021 Filed May 11, 2021 19:34 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 6,985 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-21-009554 · doc1.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 6,985 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The restricted stock units will vest 50% on each of May 8, 2020 and May 8, 2021.

F2 · derivative.expiration_date: The restricted stock units will vest 50% on each of May 8, 2020 and May 8, 2021.

Read SEC document
May 08, 2021 Filed May 11, 2021 19:34 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Tax withholdingCommon Stock 2,235 $17.32 $38,710.20
Disclosure

SEC source: 0001567619-21-009554 · doc1.xml · nonDerivative · entry 2

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,738

Read SEC document
May 08, 2021 Filed May 11, 2021 19:34 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionCommon Stock 6,985 $0.00 $0.00
Disclosure

SEC source: 0001567619-21-009554 · doc1.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,973

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 28, 2021 Filed Mar 2, 2021 19:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 GrantStock Option (right to buy) · Derivative 39,683 $0.00 Strike: $14.01 $0.00
Disclosure

SEC source: 0001567619-21-005309 · doc1.xml · derivative · entry 6

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,683

Underlying: Common Stock · 39,683 shares

Expires 2031-02-28

F4 · derivative.exercise_date: The options will vest 50% on each of February 28, 2022 and February 28, 2023.

Read SEC document
February 28, 2021 Filed Mar 2, 2021 19:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 GrantRestricted Stock Units · Derivative 19,629 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-21-005309 · doc1.xml · derivative · entry 5

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,629

Underlying: Common Stock · 19,629 shares

Expires not disclosed

F3 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 28, 2022 and February 28, 2023.

F3 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 28, 2022 and February 28, 2023.

Read SEC document
February 27, 2021 Filed Mar 2, 2021 19:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 17,557 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-21-005309 · doc1.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,556

Underlying: Common Stock · 17,557 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 27, 2021 and February 27, 2022.

F2 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 27, 2021 and February 27, 2022.

Read SEC document
February 27, 2021 Filed Mar 2, 2021 19:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Tax withholdingCommon Stock 5,618 $14.01 $78,708.18
Disclosure

SEC source: 0001567619-21-005309 · doc1.xml · nonDerivative · entry 2

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,988

Read SEC document
February 27, 2021 Filed Mar 2, 2021 19:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionCommon Stock 17,557 $0.00 $0.00
Disclosure

SEC source: 0001567619-21-005309 · doc1.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,606

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 08, 2020 Filed May 12, 2020 22:09 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 20,589 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-20-009623 · doc1.xml · derivative · entry 5

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,589 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The restricted stock units will vest 100% on May 8, 2020.

F3 · derivative.expiration_date: The restricted stock units will vest 100% on May 8, 2020.

Read SEC document
May 08, 2020 Filed May 12, 2020 22:09 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionRestricted Stock Units · Derivative 6,986 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-20-009623 · doc1.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,986

Underlying: Common Stock · 6,986 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The restricted stock units will vest 50% on each of May 8, 2020 and May 8, 2021.

F2 · derivative.expiration_date: The restricted stock units will vest 50% on each of May 8, 2020 and May 8, 2021.

Read SEC document
May 08, 2020 Filed May 12, 2020 22:09 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionCommon Stock 20,589 $0.00 $0.00
Disclosure

SEC source: 0001567619-20-009623 · doc1.xml · nonDerivative · entry 2

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,049

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
May 08, 2020 Filed May 12, 2020 22:09 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Exercise / conversionCommon Stock 6,986 $0.00 $0.00
Disclosure

SEC source: 0001567619-20-009623 · doc1.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,460

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 12, 2020 Filed Mar 13, 2020 13:34 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 PurchaseCommon Stock 5,000 $4.23 $21,130.50
Disclosure

SEC source: 0001567619-20-006247 · doc1.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,474

F1 · price: The price reported in Column 4 is a weighted average price. The prices actually received ranged from $4.155 to $4.31. 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 a weighted average price.

Read SEC document
February 27, 2020 Filed Mar 2, 2020 19:52 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 GrantRestricted Stock Units · Derivative 35,113 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-20-005270 · doc1.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,113

Underlying: Common Stock · 35,113 shares

Expires not disclosed

F2 · derivative.exercise_date: The restricted stock units will vest 50% on each of February 27, 2021 and February 27, 2022.

F2 · derivative.expiration_date: The restricted stock units will vest 50% on each of February 27, 2021 and February 27, 2022.

Read SEC document
February 27, 2020 Filed Mar 2, 2020 19:52 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 GrantStock Option (right to buy) · Derivative 88,029 $0.00 Strike: $7.12 $0.00
Disclosure

SEC source: 0001567619-20-005270 · doc1.xml · derivative · entry 3

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,029

Underlying: Common Stock · 88,029 shares

Expires 2030-02-27

F1 · derivative.exercise_date: The options will vest 50% on each of February 27, 2021 and February 27, 2022.

Read SEC document
October 30, 2019 Filed Nov 1, 2019 18:19 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 PurchaseCommon Stock 10,000 $8.75 $87,531.00
Disclosure

SEC source: 0001567619-19-020275 · doc1.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,474

F1 · price: The price in Column 4 is a weighted average price. The prices actually received ranged from $8.695 to $8.99. 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.

Read SEC document
June 12, 2019 Filed Jun 14, 2019 19:59 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 PurchaseCommon Stock 4,421 $13.19 $58,305.03
Disclosure

SEC source: 0001567619-19-013392 · doc1.xml · nonDerivative · entry 3

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,474

Read SEC document
June 12, 2019 Filed Jun 14, 2019 19:59 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 PurchaseCommon Stock 453 $12.95 $5,866.35
Disclosure

SEC source: 0001567619-19-013392 · doc1.xml · nonDerivative · entry 2

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,053

Read SEC document
June 12, 2019 Filed Jun 14, 2019 19:59 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 PurchaseCommon Stock 600 $12.59 $7,553.46
Disclosure

SEC source: 0001567619-19-013392 · doc1.xml · nonDerivative · entry 1

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 600

Read SEC document
May 13, 2019 Filed May 15, 2019 19:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 Disposition to issuerDeferred Compensation · Derivative 65,926.16 $0.00 $0.00
Disclosure

SEC source: 0001567619-19-011145 · doc1.xml · derivative · entry 5

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · by Plan

Disclosed balance after: 0

Underlying: Common Stock · 65,926.16 shares

Expires not disclosed

F5 · derivative.exercise_price: In connection with the Issuer's initial public offering, all amounts under the Mayville Engineering Company Deferred Compensation Plan, which formerly were deemed to be invested in shares of the Issuer's common stock, were converted into and are deemed invested in alternative investment options (not the Issuer's common stock).

F5 · derivative.exercise_date: In connection with the Issuer's initial public offering, all amounts under the Mayville Engineering Company Deferred Compensation Plan, which formerly were deemed to be invested in shares of the Issuer's common stock, were converted into and are deemed invested in alternative investment options (not the Issuer's common stock).

F5 · derivative.expiration_date: In connection with the Issuer's initial public offering, all amounts under the Mayville Engineering Company Deferred Compensation Plan, which formerly were deemed to be invested in shares of the Issuer's common stock, were converted into and are deemed invested in alternative investment options (not the Issuer's common stock).

Read SEC document
May 13, 2019 Filed May 15, 2019 19:56 UTC Mayville Engineering Company, Inc. MEC · Entity 5472 GrantRestricted Stock Units · Derivative 20,589 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001567619-19-011145 · doc1.xml · derivative · entry 4

Butz Todd M · CIK 0001775975 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,589

Underlying: Common Stock · 20,589 shares

Expires not disclosed

F4 · derivative.exercise_date: The restricted stock units will vest 100% on May 8, 2020.

F4 · derivative.expiration_date: The restricted stock units will vest 100% on May 8, 2020.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.