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: October 19, 2026

(Date of earliest event reported)

PRINCIPAL FINANCIAL GROUP, INC.

(Exact name of registrant as specified in its charter)

Delaware 1-16725 42-1520346
(State or other jurisdiction (Commission file number) (I.R.S. Employer
of incorporation) Identification Number)

711 High Street, Des Moines, Iowa 50392

(Address of principal executive offices)

(515) 247-5111

(Registrant’s telephone number, including area code)

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))
¨ Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§203.405 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.
Title of each class Trading symbol(s) Name of each exchange on which registered
Common Stock PFG Nasdaq Global Select Market
Item 7.01Regulation FD Disclosure

This report is filed quarterly to disclose assets under management (“AUM”) by asset manager, prior to the availability of Principal Financial Group, Inc's (the "Company") quarterly earnings release. The amounts presented herein will be consistent with the format of AUM by asset manager and presented again in such format within the Company's financial supplement for the quarter ended September 30, 2026, when that document is posted to the Company's investor relations website on or about October 26, 2026.

As of September 30, 2026, the assets under management for Principal Financial Group were $785.0 billion, of which $581.7 billion is managed by Principal Asset Management - Investment Management and $166.2 billion is managed by Principal Asset Management - International Pension.

For the quarter ended September 30, 2026, a combination of foreign currency translation, market performance, operations disposed, and other items not reported as part of the Company’s net cash flow, had an approximate 1.5% negative impact as a percentage of beginning period AUM. Operations disposed AUM in the current quarter was negative $2.2 billion primarily due to the sale of Chile annuity business in the Principal Asset Management – International Pension.

During times of market dislocations and a wider dispersion of returns, it is important to note our exposure to small, mid-cap, and international products in equity AUM, high yield and preferred securities exposure in fixed income AUM, and exchange rate movement in emerging markets.

SIGNATURE

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.

PRINCIPAL FINANCIAL GROUP, INC.
By: /s/ Humphrey Lee
Name: Humphrey Lee
Title: Vice President – Investor Relations and Financial Planning & Analysis

Date: October 19, 2026