REDDY JAGADEESH A (President & CEO) exercised options at MAYVILLE ENGINEERING COMPANY, INC.

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 1 exercise

REDDY JAGADEESH A

Filed: 7/21/2025ACC: 0000897069-25-001188

InsiderREDDY JAGADEESH ACIK 1937748

→

IssuerMAYVILLE ENGINEERING COMPANY, INC.CIK 1766368

Officer· President & CEO

Since Jul 2022

-15.06K

Net shares

Net seller

$230.5K

Total sold

Open market trades

0B · 0S

Total transactions

32.05K acquired · 47.12K disposed

Non-Derivative Transactions2

Common Stock

Direct

M · Option Exercise

+32.05K

Price / share

—

Trade value

—

% of position

26.3%

7/19/2025

121.80K→153.85K

Common Stock

Direct

F · Tax Withholding

−15.06K

Price / share

$15.30

Trade value

$230.48K

% of position

9.8%

7/19/2025

153.85K→138.78K

Total

Net shares

+16.99K

Net value

-$230.48K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	7/19/2025	M · Option Exercise	+32.05K	—	—	26.3%	121.80K	153.85K
Common Stock Direct	7/19/2025	F · Tax Withholding	−15.06K	$15.30	$230.48K	9.8%	153.85K	138.78K
Total			+16.99K		-$230.48K

Derivative Transactions1

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Common Shares

32.05K shares

−32.05K

Strike price

Held after

0.00

Exercisable

—

7/19/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Restricted Stock Units Direct	Common Shares32.05K shares	7/19/2025	M · Option Exercise	−32.05K	0	—	0.00

Non-Derivative Holdings (Post-Transaction)2

Common Stock

Indirect

Shares owned380.00

Common Stock

Indirect

Shares owned2.30K

Total

2.68K indirect2.68K

Security Title	Shares Owned	Ownership Type
Common Stock	380.00	Indirect
Common Stock	2.30K	Indirect
Total	2.68K	2.68K indirect

Derivative Holdings (Post-Transaction)3

Restricted Stock Units

Direct

Underlying security

Common Shares

Underlying shares

72.63K

Shares owned

72.63K

Exercise price

Expiration

—

Exercise window

—

Restricted Stock Units

Direct

Underlying security

Common Shares

Underlying shares

82.93K

Shares owned

82.93K

Exercise price

Expiration

—

Exercise window

—

Stock Option (right to buy)

Direct

Underlying security

Common Shares

Underlying shares

88.90K

Shares owned

88.90K

Exercise price

16.22

Expiration

—

Exercise window

—

Total

Underlying

244.46K

Owned

244.46K

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Restricted Stock Units Direct	Common Shares	0	—	—	72.63K	72.63K
Restricted Stock Units Direct	Common Shares	0	—	—	82.93K	82.93K
Stock Option (right to buy) Direct	Common Shares	16.22	—	—	88.90K	88.90K
Total					244.46K	244.46K