Allegion plc — Earnings Release 2026

Apr 28, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

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FORM 8-K

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CURRENT REPORT

Pursuant to Section 13 or 15 (d) of The

Securities Exchange Act of 1934

Date of Report – April 28, 2026

(Date of earliest event reported)

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ALLEGION PUBLIC LIMITED COMPANY

(Exact name of registrant as specified in its charter)

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Ireland	001-35971	98-1108930
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

Unit No. 233
The Capel Building
Mary’s Abbey
Dublin 7
Ireland	D07 X324
(Address of Principal Executive Offices)	(Zip Code)

( 353 ) ( 1 ) 6833399

(Registrant’s phone number, including area code)

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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	Name of exchange on which registered
Ordinary shares, par value $0.01 per share	ALLE	New York Stock Exchange
3.500% Senior Notes due 2029	ALLE 3 ½	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in 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 2.02 Results of Operations and Financial Condition

On April 28, 2026, Allegion plc (the “Company”) issued a press release announcing its first quarter 2026 results. 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, or otherwise subject to the liabilities under that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference.

Item 9.01	Financial Statements and Exhibits
(d)	Exhibits

Exhibit No.	Description
99.1	Press Release of Allegion plc dated April 28, 2026
104	Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101)

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ALLEGION PLC (Registrant) — /s/ Michael J. Wagnes
Michael J. Wagnes Senior Vice President and Chief Financial Officer