# EDGAR Filing Document

**Accession Number:** 0001510940
**File Stem:** 0000899140-25-001051
**Filing Date:** 2025-8
**Character Count:** 15210
**Document Hash:** 584cac68339b21869ecaef8c07080ff4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000899140-25-001051.hdr.sgml**: 20250826

**ACCESSION NUMBER**: 0000899140-25-001051

**CONFORMED SUBMISSION TYPE**: N-PX

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250826

**EFFECTIVENESS DATE**: 20250826

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ACK Asset Management LLC
- **CENTRAL INDEX KEY:** 0001510940

**ORGANIZATION NAME:**
- **EIN:** 203467522

**FILING VALUES:**
- **FORM TYPE:** N-PX
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-14060
- **FILM NUMBER:** 251257755

**BUSINESS ADDRESS:**
- **STREET 1:** 777 WEST PUTNAM AVENUE, SUITE 300
- **CITY:** GREENWICH
- **STATE:** CT
- **ZIP:** 06830
- **BUSINESS PHONE:** 914 220-8340

**MAIL ADDRESS:**
- **STREET 1:** 777 WEST PUTNAM AVENUE, SUITE 300
- **CITY:** GREENWICH
- **STATE:** CT
- **ZIP:** 06830

## FORM N-PX
### ANNUAL REPORT OF PROXY VOTING RECORD

## N-PX: Filer Information

**Filer CIK:** 0001510940

**Date of Report:** 06/30/2025

**Are you a Registered Management Investment Company or an Institutional Manager?:** Institutional Manager

**Is this a LIVE or TEST Filing?:** LIVE

**Is this an electronic copy of an official filing submitted in paper format?:** [ ]

### Submission Contact Information
_Not provided in this filing._

### Notification Information
**Notify via Filing Website only?:** [ ]

## N-PX: Cover Page

**Name of reporting person:** ACK Asset Management LLC

**Address:** 777 WEST PUTNAM AVENUE, SUITE 300, Greenwich, CT 06830

**Telephone number:** 914-358-3299

**Name of agent for service:** Andres Aguirre

**Agent Address:** 777 WEST PUTNAM AVENUE, SUITE 300, Greenwich, CT 06830

**Reporting Period:** Report for the year ended 06/30/2025

**SEC File Number:** 028-14060

**CRD Number (if any):** —

**Other SEC File Number (if any):** —

**LEI (if any):** —

**Report Type (check only one):**

Institutional Manager.

- [x] Institutional Manager Voting Report

- [ ] Institutional Manager Notice Report

- [ ] Institutional Manager Combination Report

Registered Management Investment Company.

- [ ] Fund Voting Report

- [ ] Fund Notice Report

**Do you wish to provide explanatory information pursuant to Special Instruction B.4?:**

- [x] No

- [ ] Yes

**Additional information:** —

## N-PX: Summary - Included Managers

**Number of Included Institutional Managers:** 0

**Included Institutional Managers:** —

## FORM N-PX PROXY VOTING RECORD

| NAME OF ISSUER                    | CUSIP     | MEETING DATE   | VOTE DESCRIPTION                                                                                                                  | VOTE CATEGORY                |   SHARES VOTED |   SHARES ON LOAN | HOW VOTED   |   SHARES VOTED FOR OR AGAINST MANAGEMENT | FOR OR AGAINST MANAGEMENT   | OTHER INFO   |
|:---|:---|:---|:---|:---|---:|---:|:---|---:|:---|:---|
| NEOGEN CORPORATION                | 640491106 | 10/24/2024     | To Approve, On An Advisory Basis, The Compensation of Named Executive Officers.                                                   | SECTION 14A SAY-ON-PAY VOTES |         371350 |                0 | F           |                                   371350 | NONE                        |  |
| NEOGEN CORPORATION                | 640491106 | 10/24/2024     | To Approve, On An Advisory Basis, The Compensation of Named Executive Officers.                                                   | SECTION 14A SAY-ON-PAY VOTES |        1288050 |                0 | F           |                                  1288050 | NONE                        |  |
| CENTURI HOLDINGS, INC.            | 155923105 | 04/16/2025     | Approval, on a non-binding, advisory basis, of executive compensation.                                                            | SECTION 14A SAY-ON-PAY VOTES |          59439 |                0 | F           |                                    59439 | NONE                        |  |
| CENTURI HOLDINGS, INC.            | 155923105 | 04/16/2025     | Approval, on a non-binding, advisory basis, of the frequency of the non-binding advisory vote on executive compensation.          | SECTION 14A SAY-ON-PAY VOTES |          59439 |                0 | 1           |                                    59439 | NONE                        |  |
| CENTURI HOLDINGS, INC.            | 155923105 | 04/16/2025     | Approval, on a non-binding, advisory basis, of executive compensation.                                                            | SECTION 14A SAY-ON-PAY VOTES |          23410 |                0 | F           |                                    23410 | NONE                        |  |
| CENTURI HOLDINGS, INC.            | 155923105 | 04/16/2025     | Approval, on a non-binding, advisory basis, of the frequency of the non-binding advisory vote on executive compensation.          | SECTION 14A SAY-ON-PAY VOTES |          23410 |                0 | 1           |                                    23410 | NONE                        |  |
| MYR GROUP INC.                    | 55405W104 | 04/24/2025     | ADVISORY APPROVAL OF THE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS.                                                            | SECTION 14A SAY-ON-PAY VOTES |          79561 |                0 | F           |                                    79561 | NONE                        |  |
| MYR GROUP INC.                    | 55405W104 | 04/24/2025     | ADVISORY APPROVAL OF THE COMPENSATION OF OUR NAMED EXECUTIVE OFFICERS.                                                            | SECTION 14A SAY-ON-PAY VOTES |         220439 |                0 | F           |                                   220439 | NONE                        |  |
| ROGERS CORPORATION                | 775133101 | 05/05/2025     | To approve, on a non-binding advisory basis, the compensation paid to our named executive officers.                               | SECTION 14A SAY-ON-PAY VOTES |         150347 |                0 | F           |                                   150347 | NONE                        |  |
| ROGERS CORPORATION                | 775133101 | 05/05/2025     | To approve, on a non-binding advisory basis, the compensation paid to our named executive officers.                               | SECTION 14A SAY-ON-PAY VOTES |         417153 |                0 | F           |                                   417153 | NONE                        |  |
| MATERION CORPORATION              | 576690101 | 05/07/2025     | To approve, by non-binding vote, named executive officer compensation.                                                            | SECTION 14A SAY-ON-PAY VOTES |         126270 |                0 | F           |                                   126270 | NONE                        |  |
| MATERION CORPORATION              | 576690101 | 05/07/2025     | To approve, by non-binding vote, named executive officer compensation.                                                            | SECTION 14A SAY-ON-PAY VOTES |         350348 |                0 | F           |                                   350348 | NONE                        |  |
| SITEONE LANDSCAPE SUPPLY, INC.    | 82982L103 | 05/14/2025     | Advisory vote to approve executive compensation.                                                                                  | SECTION 14A SAY-ON-PAY VOTES |          26521 |                0 | F           |                                    26521 | NONE                        |  |
| SITEONE LANDSCAPE SUPPLY, INC.    | 82982L103 | 05/14/2025     | Advisory vote to approve executive compensation.                                                                                  | SECTION 14A SAY-ON-PAY VOTES |          73479 |                0 | F           |                                    73479 | NONE                        |  |
| MIRION TECHNOLOGIES, INC.         | 60471A101 | 05/15/2025     | Approve, on an advisory basis, the compensation of our named executive officers as disclosed in the accompanying proxy statement. | SECTION 14A SAY-ON-PAY VOTES |         461403 |                0 | F           |                                   461403 | NONE                        |  |
| MIRION TECHNOLOGIES, INC.         | 60471A101 | 05/15/2025     | Approve, on an advisory basis, the compensation of our named executive officers as disclosed in the accompanying proxy statement. | SECTION 14A SAY-ON-PAY VOTES |        1280153 |                0 | F           |                                  1280153 | NONE                        |  |
| JBT MAREL CORPORATION             | 477839104 | 05/15/2025     | Approve, on an advisory basis, a non-binding resolution regarding the compensation of the company's named executive officers.     | SECTION 14A SAY-ON-PAY VOTES |         257988 |                0 | F           |                                   257988 | NONE                        |  |
| JBT MAREL CORPORATION             | 477839104 | 05/15/2025     | Approve, on an advisory basis, a non-binding resolution regarding the compensation of the company's named executive officers.     | SECTION 14A SAY-ON-PAY VOTES |         105406 |                0 | F           |                                   105406 | NONE                        |  |
| CECO ENVIRONMENTAL CORP.          | 125141101 | 05/20/2025     | To approve, on an advisory basis, the compensation of the Company's named executive officers.                                     | SECTION 14A SAY-ON-PAY VOTES |         670725 |                0 | F           |                                   670725 | NONE                        |  |
| CECO ENVIRONMENTAL CORP.          | 125141101 | 05/20/2025     | To recommend, on an advisory basis, the frequency of future advisory votes to approve named executive officer compensation.       | SECTION 14A SAY-ON-PAY VOTES |         670725 |                0 | 1           |                                   670725 | NONE                        |  |
| CECO ENVIRONMENTAL CORP.          | 125141101 | 05/20/2025     | To approve, on an advisory basis, the compensation of the Company's named executive officers.                                     | SECTION 14A SAY-ON-PAY VOTES |         331009 |                0 | F           |                                   331009 | NONE                        |  |
| CECO ENVIRONMENTAL CORP.          | 125141101 | 05/20/2025     | To recommend, on an advisory basis, the frequency of future advisory votes to approve named executive officer compensation.       | SECTION 14A SAY-ON-PAY VOTES |         331009 |                0 | 1           |                                   331009 | NONE                        |  |
| MASTEC, INC.                      | 576323109 | 05/22/2025     | Approval of a non-binding advisory resolution regarding the compensation of our named executive officers.                         | SECTION 14A SAY-ON-PAY VOTES |         131908 |                0 | F           |                                   131908 | NONE                        |  |
| MASTEC, INC.                      | 576323109 | 05/22/2025     | Approval of a non-binding advisory resolution regarding the compensation of our named executive officers.                         | SECTION 14A SAY-ON-PAY VOTES |         365992 |                0 | F           |                                   365992 | NONE                        |  |
| MRC GLOBAL INC.                   | 55345K103 | 05/29/2025     | Approve a non-binding advisory resolution approving the Company's named executive officer compensation                            | SECTION 14A SAY-ON-PAY VOTES |         414138 |                0 | F           |                                   414138 | NONE                        |  |
| MRC GLOBAL INC.                   | 55345K103 | 05/29/2025     | Recommend, on an advisory basis, the frequency of an advisory vote on the Company's named executive officer compensation          | SECTION 14A SAY-ON-PAY VOTES |         414138 |                0 | 1           |                                   414138 | NONE                        |  |
| MRC GLOBAL INC.                   | 55345K103 | 05/29/2025     | Approve a non-binding advisory resolution approving the Company's named executive officer compensation                            | SECTION 14A SAY-ON-PAY VOTES |        1072862 |                0 | F           |                                  1072862 | NONE                        |  |
| MRC GLOBAL INC.                   | 55345K103 | 05/29/2025     | Recommend, on an advisory basis, the frequency of an advisory vote on the Company's named executive officer compensation          | SECTION 14A SAY-ON-PAY VOTES |        1072862 |                0 | 1           |                                  1072862 | NONE                        |  |
| GRANITE CONSTRUCTION INCORPORATED | 387328107 | 06/05/2025     | Advisory vote to approve executive compensation of the named executive officers                                                   | SECTION 14A SAY-ON-PAY VOTES |         202906 |                0 | F           |                                   202906 | NONE                        |  |
| GRANITE CONSTRUCTION INCORPORATED | 387328107 | 06/05/2025     | Advisory vote to approve executive compensation of the named executive officers                                                   | SECTION 14A SAY-ON-PAY VOTES |          78294 |                0 | F           |                                    78294 | NONE                        |  |
| MASTERBRAND INC                   | 57638P104 | 06/05/2025     | Advisory resolution to approve executive compensation of the Company's named executive officers.                                  | SECTION 14A SAY-ON-PAY VOTES |         167928 |                0 | F           |                                   167928 | NONE                        |  |
| MASTERBRAND INC                   | 57638P104 | 06/05/2025     | Advisory resolution to approve executive compensation of the Company's named executive officers.                                  | SECTION 14A SAY-ON-PAY VOTES |         435072 |                0 | F           |                                   435072 | NONE                        |  |
| NLIGHT, INC.                      | 65487K100 | 06/10/2025     | To approve, on an advisory, non-binding basis, the compensation of our named executive officers.                                  | SECTION 14A SAY-ON-PAY VOTES |         517324 |                0 | F           |                                   517324 | NONE                        |  |
| NLIGHT, INC.                      | 65487K100 | 06/10/2025     | To approve, on an advisory, non-binding basis, the compensation of our named executive officers.                                  | SECTION 14A SAY-ON-PAY VOTES |         199674 |                0 | F           |                                   199674 | NONE                        |  |

## N-PX: Signature Block

**Reporting Person:** ACK Asset Management LLC

**By (Signature):** Andres Aguirre

**By (Printed Signature):** Andres Aguirre

**By (Title):** Senior Controller

**Date:** 08/21/2025