Filing of Certain Prospectuses and Communications in Connection With Business Combination Transactions (425)

Filing pursuant to Rule 425 under the

Securities Act of 1933, as amended

And deemed filed under Rule 14a-12 under the

Securities Exchange Act of 1934, as amended

Filer: PotlatchDeltic Corporation

Subject Company: CatchMark Timber Trust, Inc.

Filer’s Commission File Number: 001-36239

Date: May 31, 2022

PotlatchDeltic Corporation (“PotlatchDeltic”) issued the following to employees relating to the proposed transaction contemplated by that certain Agreement and Plan of Merger, dated as of May 29, 2022 (the “Merger Agreement”), by and among PotlatchDeltic, Horizon Merger Sub 2022, LLC, a wholly owned subsidiary of PotlatchDeltic, CatchMark Timber Trust, Inc. and CatchMark Timber Operating Partnership, L.P.

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