Director’s trust buys Allegion (ALLE) shares in open-market purchases

Rhea-AI Filing Summary

Allegion plc director Sue Main reported open-market purchases of company stock through her trust. On March 11, 2026, the Main-Schweitzer Revocable Trust bought a total of 2,000 Allegion ordinary shares in three transactions at weighted average prices around $147–$150 per share. Following these purchases, the trust held 2,000 shares indirectly, and Main also reported 2,355 Allegion ordinary shares held directly.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MAIN SUE

(Last) (First) (Middle)

C/O SCHLAGE LOCK COMPANY LLC

11819 N. PENNSYLVANIA STREET

(Street)

CARMEL IN 46032

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Allegion plc [ ALLE ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/11/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares	03/11/2026		P		100	A	$147.26	100	I	By Reporting Person's Trust(1)
Ordinary Shares	03/11/2026		P		1,300	A	$149.5827(2)	1,400	I	By Reporting Person's Trust(1)
Ordinary Shares	03/11/2026		P		600	A	$150.0533(3)	2,000	I	By Reporting Person's Trust(1)
Ordinary Shares								2,355	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents ordinary shares held by the Main-Schweitzer Revocable Trust.

2. This transaction was executed in multiple purchases ranging from $148.895 to $149.74 per share, inclusive. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer, or any security holder of the Issuer full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

3. This transaction was executed in multiple purchases ranging from $150.04 to $150.12 per share, inclusive. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer, or any security holder of the Issuer full information regarding the number of shares purchased at each separate price within the range set forth in this footnote.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Tandra M. Foster, Attorney-In-Fact	03/12/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Allegion (ALLE) disclose for Sue Main?

Allegion disclosed that director Sue Main’s revocable trust bought 2,000 ordinary shares in open-market transactions on March 11, 2026. These indirect purchases increased the trust’s stake while Main also reported a separate direct holding in Allegion shares.

How many Allegion (ALLE) shares did Sue Main’s trust purchase?

Sue Main’s revocable trust purchased a total of 2,000 Allegion ordinary shares. The buys occurred in three separate open-market trades, with the combined result reported as indirect ownership held by the Main-Schweitzer Revocable Trust associated with the director.

At what prices were the Allegion (ALLE) shares bought by Sue Main’s trust?

The trust’s Allegion share purchases were executed at weighted average prices of $147.26, $149.5827, and $150.0533 per share. Two of the transactions involved multiple trades within narrow price ranges, with full price breakdowns available on request from the reporting person.

What is Sue Main’s reported Allegion (ALLE) share ownership after the Form 4?

After the reported transactions, the Main-Schweitzer Revocable Trust held 2,000 Allegion ordinary shares indirectly. In addition, Sue Main reported 2,355 Allegion ordinary shares held directly, reflecting both indirect trust holdings and her separate direct position in the company.

Were Sue Main’s Allegion (ALLE) transactions direct or through a trust?

The 2,000 Allegion shares were purchased indirectly through the Main-Schweitzer Revocable Trust. The Form 4 notes that these ordinary shares are held by the trust, while a separate line item reports Sue Main’s direct ownership of additional Allegion shares.

What type of transaction code appears in Sue Main’s Allegion (ALLE) Form 4?

The Form 4 shows transaction code “P,” indicating open-market or private purchase of Allegion ordinary shares. All three reported transactions on March 11, 2026 are classified as non-derivative purchases, reflecting straightforward buying activity rather than option exercises or gifts.