| Item 1. | |
| (a) | Name of issuer:
Mayville Engineering Company, Inc. |
| (b) | Address of issuer's principal executive offices:
715 SOUTH STREET, 715 SOUTH STREET, MAYVILLE, WISCONSIN, 53050. |
| Item 2. | |
| (a) | Name of person filing:
(i) Hilve Holdings Limited and (ii) Mikhail Stiskin (collectively, the "Reporting Persons"). |
| (b) | Address or principal business office or, if none, residence:
(i) For Hilve Holdings Ltd.: Spyrou Araouzou, 25, Beregaria 25, 5th Floor, Office 2, 3036, Limassol, Republic of Cyprus, and(ii) For Mikhail Stiskin: Onisilou, 8A, Rita Court 1, Block B, Flat/Office 208, Agios Tychonas, 4532, Limassol, Republic of Cyprus. |
| (c) | Citizenship:
(i) Hilve Holdings Limited was established under the laws of the Republic of Cyprus, and (ii) Mikhail Stiskin is a citizen of Israel. |
| (d) | Title of class of securities:
Common Stock, no par value |
| (e) | CUSIP No.:
578605107 |
| Item 4. | Ownership |
| (a) | Amount beneficially owned:
Hilve Holdings Limited directly holds 995,756 shares of Common Stock of no par value ("Common Stock"), of Mayville Engineering Company, Inc. (the "Issuer"). Mikhail Stiskin, as the sole shareholder of Hilve Holdings Limited, may be deemed the beneficial owner of 995,756 shares of Common Stockheld by Hilve Holdings Limited. |
| (b) | Percent of class:
Hilve Holdings Limited may be deemed the beneficial owner of 4.9% of the outstanding shares of Common Stock of the Issuer. Mikhail Stiskin may be deemed the beneficial owner of 4.9% of the outstanding shares of Common Stock. Such percentages are based on 20,317,825 shares of Common Stock of the Issuer outstanding as of September 30, 2025, as reported in the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 5, 2025. |
| (c) | Number of shares as to which the person has:
|
| | (i) Sole power to vote or to direct the vote:
As of the date hereof, Hilve Holdings Limited has the sole power to vote or to direct the vote of 995,756 shares of Common Stock of the Issuer. Mikhail Stiskin, as the sole shareholder of Hilve Holdings Limited, has the sole power to vote or to direct the vote of 995,756 shares of Common Stock of the Issuer.
|
| | (ii) Shared power to vote or to direct the vote:
As of the date hereof, each of the Reporting Persons has shared power to vote or direct the vote of 0 shares of Common Stock of the Issuer
|
| | (iii) Sole power to dispose or to direct the disposition of:
As of the date hereof, Hilve Holdings Limited has the sole power to dispose or to direct the disposition of 995,756 shares of Common Stock of the Issuer. Mikhail Stiskin has the sole power to dispose or to direct the disposition of 995,756 shares of Common Stock of the Issuer.
|
| | (iv) Shared power to dispose or to direct the disposition of:
As of the date hereof, each of the Reporting Persons has shared power to dispose or to direct the disposition of 0 shares of Common Stock of the Issuer.
|
| Item 5. | Ownership of 5 Percent or Less of a Class. |
| |
Not Applicable
|
| Item 6. | Ownership of more than 5 Percent on Behalf of Another Person. |
| |
Not Applicable
|
| Item 7. | Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person. |
| |
Not Applicable
|
| Item 8. | Identification and Classification of Members of the Group. |
| |
Not Applicable
|
| Item 9. | Notice of Dissolution of Group. |
| |
Not Applicable
|
Rule 13d-1(b)
Rule 13d-1(c)