Silgan : 2026 Proxy Card

Published: 2026-04-16 10:46:12 ET SLGN

Published on 04/16/2026 at 10:46 am EDT

Using a black ink pen, mark your votes with an X as shown in this example. Please do not write outside the designated areas.

Annual Meeting Proxy Card

▼ IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE.▼

Proposals - The Board of Directors recommends that you vote FOR all nominees with respect to Proposal 1 and FOR Proposals 2, 3 and 4.

A

ELECTION OF DIRECTORS (CLASS II)

Nominees (to serve until the Company's Annual Meeting of Stockholders in 2029 and until their successors are duly elected and qualified):

01 Leigh J. Abramson 02 Robert B. Lewis 03 Niharika Ramdev

all nominees listed below

to vote for all nominees listed below

To approve the First Amendment to the Silgan Holdings Inc. Second Amended and Restated 2004 Stock Incentive Plan.

To ratify the appointment of Ernst & Young LLP as the Company's independent registered

public accounting firm for the fiscal year ending December 31, 2026.

Advisory vote to approve the compensation of the Company's named executive officers.

B

To consider and act upon other business as may properly come before the annual meeting or any adjournment or postponement thereof.

Change of Address - Please print new address below.

Authorized Signatures - This section must be completed for your vote to be counted. Please date and sign below.

C

When signing as attorney, executor, administrator, trustee or guardian, please give full title as such. If a corporation, please provide the full name of the corporation and the signature of the authorized officer signing on its behalf.

Date (mm/dd/yyyy) - Please print date below. Signature 1 - Please keep signature within the box. Signature 2 - Please keep signature within the box.

1 U P X

049IZB

▼ IF VOTING BY MAIL, SIGN, DETACH AND RETURN THE BOTTOM PORTION IN THE ENCLOSED ENVELOPE.▼

The undersigned hereby appoints Adam J. Greenlee and Frank W. Hogan, III as Proxies, each with the power of substitution, and hereby authorizes each of them to represent and to vote, as designated below, all the shares of common stock, par value of $0.01 per share, of Silgan Holdings Inc., or the Company, held of record by the undersigned on April 2, 2026 at an Annual Meeting of Stockholders of the Company to be held on May 26, 2026 or any adjournment or postponement thereof.

(Continued and to be dated and signed on the reverse side.)

Disclaimer

Silgan Holdings Inc. published this content on April 16, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on April 16, 2026 at 14:45 UTC.