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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

## FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): December 05, 2025

POTLATCHDELTIC CORPORATION

(Exact name of Registrant as Specified in Its Charter)

Delaware | 1-32729 | 82-0156045
(State or Other Jurisdiction of Incorporation) | (Commission File Number) | (IRS Employer Identification No.)
601 West First Avenue, Suite 1600 |
Spokane, Washington |  | 99201
(Address of Principal Executive Offices) |  | (Zip Code)

Registrant’s Telephone Number, Including Area Code: 509 835-1500

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class |  | Trading Symbol(s) |  | Name of each exchange on which registered
Common Stock ($1 par value) |  | PCH |  | Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

## Item 7.01 Regulation FD Disclosure.

On December 5, 2025, PotlatchDeltic Corporation (the “Company”) posted presentation materials on the Investor Relations section of the Company’s website. The presentation materials are attached as Exhibit 99.1 to this report and incorporated herein by reference. The Company expects to use the presentation materials, in whole or in part, in connection with presentations to investors, analysts and others.

The presentation materials include a reconciliation of all non-GAAP financial measures used in the presentation materials to the most directly comparable GAAP measures.

The information in this Form 8-K and the Exhibit attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference in such filing.

## Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number | Description
99.1 | PotlatchDeltic Presentation Materials
104 | Cover Page interactive data file (Embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

|  |  | PotlatchDeltic Corporation
Date: | December 5, 2025 | By: | /s/ Michele L. Tyler
|  |  | Michele L. Tyler Vice President, General Counsel and Corporate Secretary