Company: AVNT
Filing Date: 2025-03-27
Form Type: DEF 14A
Source: 0001122976-25-000019
Chunk: 4

Company: AVIENT CORP
Filing Date: 2025-03-27
Form: DEF 14A
Chunk 4
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| 3.Ratification of the appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2025 |     | Vote FOR              |

Shareholders will also consider and transact any other business that may properly come before the Annual Meeting or any adjournment or postponement thereof.

Please confirm that your shares are represented at the Annual Meeting by promptly voting and submitting your proxy by using the internet or telephone as further explained in this proxy statement, or by completing, signing, dating, and mailing a proxy card and/or voting instruction card.

March 27, 2025

For the Board of Directors

#### Amy M. Sanders
Senior Vice President, General Counsel, Secretary and Corporate Ethics Officer

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#### PROXY SUMMARY

#### Avient Corporation

#### 33587 Walker Road

#### Avon Lake, Ohio 44012
Proxy Statement

We are providing the enclosed proxy materials to you in connection with the solicitation by the Board of Directors (the “Board”) of Avient Corporation ("Avient," "Avient Corporation," or the “Company”) of proxies to be voted at the Annual Meeting of Shareholders to be held on Wednesday, May 14, 2025 (the “Annual Meeting”), and at any adjournments or postponements thereof. We began making our proxy materials available to shareholders on March 27, 2025.

Proxy Summary

This summary does not contain all of the information that you should consider, and you should read the entire proxy statement carefully before voting.

Voting and Meeting Information

Your vote is important to the future of the Company. Please carefully review the proxy materials for the Annual Meeting, which will be held virtually via live webcast on Wednesday, May 14, 2025 at 9:00 a.m. Eastern Time at www.virtualshareholdermeeting.com/AVNT2025 . Follow the instructions below to cast your vote on all of the voting matters.

The Annual Meeting will be conducted virtually because doing so enables greater shareholder attendance and participation from any location around the world, and reduces the cost and environmental impact of the Annual Meeting. We have designed the virtual Annual Meeting to provide substantially the same opportunities to participate as you would have at an in-person meeting.

Attendance and Participation

Our Annual Meeting will be conducted on the internet via live webcast. You will be able to attend and participate in the Annual Meeting online and submit your questions during the Annual Meeting by visiting www