Ranpak Holdings Corp.

ELECTRONIC AVAILABILITY OF PROXY MATERIALS FOR THE ANNUAL MEETING

Important Notice Regarding the Availability of Proxy Materials for Stockholder Meeting to be Held on May 21, 2026: This Proxy Statement and the Company’s Annual Report on Form 10-K for fiscal year 2025 are available electronically atwww.proxyvote.com.

HOUSEHOLDING OF PROXY MATERIALS

The SEC has adopted rules that permit companies and intermediaries (e.g., brokers) to satisfy the delivery requirements for proxy statements and annual reports with respect to two or more stockholders sharing the same address by delivering a single proxy statement addressed to those stockholders. This process, which is commonly referred to as “householding,” potentially means extra convenience for stockholders and cost savings for companies.

Brokers with account holders who are Ranpak stockholders may be “householding” our proxy materials. A single proxy statement may be delivered to multiple stockholders sharing an address unless contrary instructions have been received from the affected stockholders. Once you have received notice from your broker that it will be “householding” communications to your address, “householding” will continue until you are notified otherwise or until you notify your broker or the Company that you no longer wish to participate in “householding.”

If, at any time, you no longer wish to participate in “householding” and would prefer to receive a separate proxy statement and annual report, you may (1) notify your broker or (2) direct your written request to our Investor Relations Department atir@ranpak.com, 440-354-4445 or at 7990 Auburn Road, Concord Township, OH 44077.

Stockholders who currently receive multiple copies of this Proxy Statement at their address and would like to request “householding” of their communications should contact their broker. In addition, the Company will promptly deliver, upon written request to the address above, a separate copy of the Annual Report on Form 10-K, Proxy Statement and Proxy Card or Notice of Internet Availability of Proxy Material to a stockholder at a shared address to which a single copy of the documents was delivered.

OTHER MATTERS

As of the date of this Proxy Statement, the Board does not intend to present any matters other than those described herein at the Annual Meeting and is unaware of any matters to be presented by other parties. If other matters are properly brought before the Annual Meeting for action by the stockholders, proxies will be voted in accordance with the recommendation of the Board or, in the absence of such a recommendation, in the discretion of the proxy holder.

We have filed our Annual Report on Form 10-K for fiscal year 2025 with the SEC. It is available free of charge at the SEC’s web site atwww.sec.gov. Upon written request by a Ranpak stockholder, we will mail without charge a copy of our Annual Report on Form 10-K, including the financial statements and financial statement schedules, but excluding exhibits to the Annual Report on Form 10-K. Exhibits to the Annual Report on Form 10-K are available upon payment of a reasonable fee, which is limited to our expenses in furnishing the requested exhibit. All requests should be directed to our Investor Relations department atir@ranpak.com,440-354-4445 or 7990 Auburn Road, Concord Township, OH 44077.

Ranpak 57 2026 Proxy Statement