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MEC (MEC) CEO Reddy sells 1,300 shares, retains large stock and RSU stake

Filing Impact
(Neutral)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Mayville Engineering Company, Inc. President & CEO Jagadeesh A. Reddy reported an open-market sale of 1,300 shares of MEC common stock at a weighted average price of about $35.01 per share on June 8, 2026. The sale was made under a pre-arranged Rule 10b5-1 trading plan adopted on December 12, 2025, meaning the trades were scheduled in advance.

After this sale, he directly holds 139,793 MEC common shares. He also has indirect holdings of 380 shares held by his daughter and 2,300 shares through an ESOP and/or 401(k) plan. In addition, he retains stock options covering 88,901 common shares at an exercise price of $16.22, plus several restricted stock unit awards tied to 74,986, 55,284 and 36,317 underlying common shares that vest in equal annual installments between March 15, 2025 and March 15, 2029.

Positive

  • None.

Negative

  • None.
Insider Reddy Jagadeesh A
Role President & CEO
Sold 1,300 shs ($46K)
Type Security Shares Price Value
Sale Common Stock 1,300 $35.0077 $46K
holding Restricted Stock Units -- -- --
holding Restricted Stock Units -- -- --
holding Restricted Stock Units -- -- --
holding Stock Option (right to buy) -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 139,793 shares (Direct, null); Restricted Stock Units — 36,317 shares (Direct, null); Stock Option (right to buy) — 88,901 shares (Direct, null); Common Stock — 2,300 shares (Indirect, by ESOP and/or 401(k) Plan)
Footnotes (1)
  1. The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025. The price in Column 4 is a weighted average price. The prices actually received ranged from $35.00 to $35.02. 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 sold at each price within the range for all transactions reported in this Form 4 utilizing a weighted average price. Reflects the most recent ESOP and 401(k) balance. The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027. The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028. The restricted stock units will vest 1/3 on each of March 15, 2027, 2028 and 2029. The options will vest 50% on each of February 28, 2024 and February 28, 2025.
Shares sold 1,300 shares Open-market sale on June 8, 2026
Weighted average sale price $35.0077 per share Open-market sale range $35.00–$35.02
Direct common shares after sale 139,793 shares CEO direct ownership following transaction
Indirect holdings by daughter 380 shares Common stock held indirectly
ESOP/401(k) holdings 2,300 shares Most recent ESOP and 401(k) balance
Stock option underlying shares 88,901 shares Option with $16.22 exercise price
RSU award underlying shares 1 74,986 shares Vesting in thirds 2025–2027
RSU award underlying shares 2 55,284 shares Vesting in thirds 2026–2028
Rule 10b5-1 trading plan regulatory
"The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
restricted stock units financial
"The restricted stock units will vest 1/3 on each of March 15"
Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.
ESOP financial
"Reflects the most recent ESOP and 401(k) balance."
An Employee Stock Ownership Plan (ESOP) is a program that gives employees ownership shares in their company, often as part of their benefits package. It acts like a company-sponsored savings plan, allowing workers to have a stake in the company's success, which can boost motivation and loyalty. For investors, ESOPs can influence company decisions and stock value, making them an important aspect of corporate ownership and governance.
401(k) Plan financial
"by ESOP and/or 401(k) Plan"
A 401(k) plan is a workplace retirement account that lets employees set aside part of their pay into a tax-advantaged savings pot, often with employers adding matching contributions — like a workplace piggy bank for future income. It matters to investors because the amount people save and how employers fund these plans influence consumer spending, corporate payroll costs and the flow of money into financial markets, which can affect stock prices and company valuations.
weighted average price financial
"The price in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
stock option (right to buy) financial
"Stock Option (right to buy)"
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SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Reddy Jagadeesh A

(Last)(First)(Middle)
135 SOUTH 84TH STREET
SUITE 300

(Street)
MILWAUKEE WISCONSIN 53214

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Mayville Engineering Company, Inc. [ MEC ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
President & CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/08/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock06/08/2026S(1)1,300D$35.0077(2)139,793D
Common Stock2,300(3)Iby ESOP and/or 401(k) Plan
Common Stock380IBy Daughter
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Restricted Stock Units$0 (4) (4)Common Shares36,31736,317D
Restricted Stock Units$0 (5) (5)Common Shares55,28455,284D
Restricted Stock Units$0 (6) (6)Common Shares74,98674,986D
Stock Option (right to buy)$16.22 (7) (7)Common Shares88,90188,901D
Explanation of Responses:
1. The reported transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025.
2. The price in Column 4 is a weighted average price. The prices actually received ranged from $35.00 to $35.02. 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 sold at each price within the range for all transactions reported in this Form 4 utilizing a weighted average price.
3. Reflects the most recent ESOP and 401(k) balance.
4. The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.
5. The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.
6. The restricted stock units will vest 1/3 on each of March 15, 2027, 2028 and 2029.
7. The options will vest 50% on each of February 28, 2024 and February 28, 2025.
/s/ Garrett F. Bishop, Attorney-in-Fact for Jagadeesh A. Reddy06/10/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did MEC CEO Jagadeesh Reddy report in this Form 4?

MEC President & CEO Jagadeesh A. Reddy reported selling 1,300 shares of Mayville Engineering common stock at a weighted average price of $35.0077 per share. The transaction was an open-market sale executed on June 8, 2026 under a pre-arranged Rule 10b5-1 trading plan.

How many Mayville Engineering (MEC) shares does the CEO hold after the reported sale?

After the sale, the CEO directly holds 139,793 MEC common shares. He also has indirect ownership of 380 shares held by his daughter and 2,300 shares through an ESOP and/or 401(k) plan, providing additional indirect exposure to Mayville Engineering stock beyond his direct holdings.

What is the significance of the Rule 10b5-1 trading plan mentioned in the MEC Form 4?

The filing states the sale was made under a Rule 10b5-1 trading plan adopted on December 12, 2025. Such plans pre-schedule trades, helping separate routine portfolio management from discretionary timing decisions, and can reduce the informational value of the exact trade date for outside investors.

What stock options and RSUs does the MEC CEO retain after this transaction?

The CEO retains stock options over 88,901 common shares at a $16.22 exercise price and multiple restricted stock unit awards over 74,986, 55,284 and 36,317 shares. The RSUs vest in equal one-third installments on March 15 dates from 2025 through 2029, subject to their terms.

At what price range were the MEC CEO’s shares sold according to the filing footnote?

The weighted average sale price reported is $35.0077 per share, with actual sale prices ranging from $35.00 to $35.02. The CEO has committed to provide detailed breakdowns of shares sold at each price within this range to the company, security holders, or SEC staff upon request.