# EDGAR Filing Document

**Accession Number:** 0000066570
**File Stem:** 0001193125-23-084668
**Filing Date:** 2023-3
**Character Count:** 9291
**Document Hash:** 22524c8bc33e202fa46397ec3faba671
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-23-084668.hdr.sgml**: 20230330

**ACCESSION NUMBER**: 0001193125-23-084668

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 6

**FILED AS OF DATE**: 20230330

**DATE AS OF CHANGE**: 20230330

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MSA Safety Inc
- **CENTRAL INDEX KEY:** 0000066570
- **STANDARD INDUSTRIAL CLASSIFICATION:** ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES [3842]
- **IRS NUMBER:** 464914539
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-15579
- **FILM NUMBER:** 23777400

**BUSINESS ADDRESS:**
- **STREET 1:** 1000 CRANBERRY WOODS DRIVE
- **CITY:** CRANBERRY TOWNSHIP
- **STATE:** PA
- **ZIP:** 16066
- **BUSINESS PHONE:** 724-776-8600

**MAIL ADDRESS:**
- **STREET 1:** 1000 CRANBERRY WOODS DRIVE
- **CITY:** CRANBERRY TOWNSHIP
- **STATE:** PA
- **ZIP:** 16066

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** MINE SAFETY APPLIANCES CO
- **DATE OF NAME CHANGE:** 19920703

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**SCHEDULE 14A** 

**Proxy Statement Pursuant to Section 14(a)** 

**of the Securities Exchange Act of 1934** 

**(Amendment No.)** 

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

Check the appropriate box:

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| | | | |
|:---|:---|:---|:---|
|  ☐ | Preliminary Proxy Statement | ☐ | **Confidential, for Use of the Commission<br>Only (as permitted by Rule 14a-6(e)(2))** |
|  ☐ | Definitive Proxy Statement | ☐ | **Confidential, for Use of the Commission<br>Only (as permitted by Rule 14a-6(e)(2))** |
|  ☒ | Definitive Additional Materials | ☐ | **Confidential, for Use of the Commission<br>Only (as permitted by Rule 14a-6(e)(2))** |
|  ☐ | Soliciting Material Pursuant to §240.14a-12 | ☐ | **Confidential, for Use of the Commission<br>Only (as permitted by Rule 14a-6(e)(2))** |

---

## MSA Safety Incorporated
**(Name of Registrant as Specified In Its Charter)** 

Payment of Filing Fee (Check all boxes that apply):

☒ No fee required.

☐ Fee paid previously with preliminary materials.

☐ Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.

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|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>MSA SAFETY INCORPORATED<br>1000 CRANBERRY WOODS DRIVE<br>CRANBERRY TOWNSHIP, PA 16066 | ![LOGO](g372884dspaa.jpg) |
|  | ![LOGO](g372884dspaa.jpg) |
|  | ![LOGO](g372884dspaa.jpg) |
|  | ![LOGO](g372884dspaa.jpg) |
|  | ![LOGO](g372884dspaa.jpg) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; D96980-P87549-Z84427<br>| ![LOGO](g372884dspaa.jpg) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ![LOGO](g372884dspab.jpg)  | ![LOGO](g372884dspaa.jpg) |
| &nbsp;&nbsp;&nbsp;&nbsp; You invested in MSA SAFETY INCORPORATED and it's time to vote!<br> You have the right to vote on proposals being presented at the Annual Meeting. **This is an important notice regarding the availability of proxy material for the shareholder meeting to be held on May 12, 2023.** | &nbsp;&nbsp;&nbsp;&nbsp; You invested in MSA SAFETY INCORPORATED and it's time to vote!<br> You have the right to vote on proposals being presented at the Annual Meeting. **This is an important notice regarding the availability of proxy material for the shareholder meeting to be held on May 12, 2023.** |
| &nbsp;&nbsp;&nbsp;&nbsp; Get informed before you vote<br> View the Annual Report to Shareholders, Notice of Annual Meeting and Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to April 28, 2023. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. | &nbsp;&nbsp;&nbsp;&nbsp; Get informed before you vote<br> View the Annual Report to Shareholders, Notice of Annual Meeting and Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to April 28, 2023. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. |
| ![LOGO](g372884dsp0002.jpg) | ![LOGO](g372884dsp0002.jpg) |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \*Please check the meeting materials for any special requirements for meeting attendance. | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \*Please check the meeting materials for any special requirements for meeting attendance. |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; V1.1  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; V1.1  |

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**Vote at www.ProxyVote.com**![LOGO](g3728845.jpg)

**THIS IS NOT A VOTABLE BALLOT** 

This is an overview of the proposals being presented at the

upcoming shareholder meeting. Please follow the instructions on

the reverse side to vote these important matters.

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| | | |
|:---|:---|:---|
| **Voting Items** | **Board**<br> **Recommends** | **Board**<br> **Recommends** |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;1. Election of Directors for a term expiring in 2026.<br>**Nominees:**<br>01) William M. Lambert<br> 02) Diane M. Pearse<br> 03) Nishan J. Vartanian<br>| ![LOGO](g372884dsp3b.jpg) | For |
|  &nbsp;&nbsp;&nbsp;&nbsp;2. Approval of Adoption of the Company's 2023 Management Equity Incentive Plan.<br>| ![LOGO](g372884dsp3b.jpg) | For |
|  &nbsp;&nbsp;&nbsp;&nbsp;3. Selection of Ernst & Young LLP as the Company's independent registered public accounting firm.<br>| ![LOGO](g372884dsp3b.jpg) | For |
|  &nbsp;&nbsp;&nbsp;&nbsp;4. To provide an advisory vote to approve the executive compensation of the Company's named executive officers.<br>| ![LOGO](g372884dsp3b.jpg) | For |
|  &nbsp;&nbsp;&nbsp;&nbsp;5. To provide an advisory vote on the frequency of the advisory vote to approve executive compensation.<br>| ![LOGO](g372884dsp3b.jpg) | For |
|  &nbsp;&nbsp;&nbsp;&nbsp;**NOTE:** Such other business as may properly come before the meeting or any adjournment thereof.<br>|  |  |

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Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click "Sign up for E-delivery".<br>

D96981-P87549-Z84427