As of October 27, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of Allegion Plc. The largest reported stake is Vanguard Capital Management's, at 7.5%. 7 filings are on record since February 13, 2026 (Schedule 13G, April 28, 2026).
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Key facts
- · Holder: State Street Corporation · Percent: 5.1% · SCHEDULE 13G
- · Holder: Boston Partners · Percent: 5.18% · SCHEDULE 13G/A
- · Holder: Boston Partners · Percent: 4.95% · SCHEDULE 13G/A
- · Holder: Vanguard Capital Management · Percent: 7.5% · SCHEDULE 13G
- · Holder: Vanguard Portfolio Management · Percent: 5.34% · SCHEDULE 13G
Allegion Plc has 7 Schedule 13D or 13G filings on record since 2026-02-13. 4 holders' latest filing reports 5% or more of common stock. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| Vanguard Capital Management | 7.5% | 6,464,700 | SCHEDULE 13G, 2026-04-28 | 2026-03-31 |
| Vanguard Portfolio Management | 5.34% | 4,601,917 | SCHEDULE 13G, 2026-04-28 | 2026-03-31 |
| Boston Partners | 5.18% | 4,451,622 | SCHEDULE 13G/A, 2026-08-03 | 2026-06-30 |
| State Street Corporation | 5.1% | 4,348,530 | SCHEDULE 13G, 2026-08-07 | 2026-06-30 |
| Kayne Anderson Rudnick Investment Management, LLC | 4.7% | 4,042,593 | SCHEDULE 13G/A, 2026-02-13 | 2025-12-31 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-26 | 2026-03-13 |
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What the Full Report on Allegion Plc covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
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Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-02-13 | Kayne Anderson Rudnick Investment Management, LLC | 4.7% | SCHEDULE 13G/A |
| 2026-03-26 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-28 | Vanguard Capital Management | 7.5% | SCHEDULE 13G |
| 2026-04-28 | Vanguard Portfolio Management | 5.34% | SCHEDULE 13G |
| 2026-05-14 | Boston Partners | 4.95% | SCHEDULE 13G/A |
| 2026-08-03 | Boston Partners | 5.18% | SCHEDULE 13G/A |
| 2026-08-07 | State Street Corporation | 5.1% | SCHEDULE 13G |
Questions about who owns Allegion Plc
Who owns Allegion Plc?
On this page, 4 holders' latest ownership filings report 5% or more of Allegion Plc: Vanguard Capital Management (7.5%, Schedule 13G, filed 2026-04-28), Vanguard Portfolio Management (5.34%, Schedule 13G, filed 2026-04-28), Boston Partners (5.18%, Schedule 13G/A, filed 2026-08-03) and State Street Corporation (5.1%, Schedule 13G, filed 2026-08-07).
Who are the largest shareholders of Allegion Plc?
By the share each holder's latest filing reports, the largest holders of Allegion Plc on this page are Vanguard Capital Management (7.5%), Vanguard Portfolio Management (5.34%) and Boston Partners (5.18%).
When did Vanguard Capital Management buy into Allegion Plc?
The filings give report dates, not purchase dates. The earliest filing from Vanguard Capital Management on this page is the Schedule 13G, filed 2026-04-28, reporting 7.5%.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 7 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.