As of November 6, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Lennox International Inc. The largest reported stake is Capital International Investors', at 8.4%. 4 filings are on record since February 13, 2026 (Schedule 13G, February 13, 2026).
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Key facts
- · Reporting person: Vanguard Capital Management · Sole voting: 273,358 · Shared voting: 0 · Sole dispositive: 2,327,689 · Shared dispositive: 0 · SCHEDULE 13G, 2026-04-30
- · Reporting person: Viking Global Investors LP · Sole voting: 0 · Shared voting: 1,815,350 · Sole dispositive: 0 · Shared dispositive: 1,815,350 · SCHEDULE 13G, 2026-04-22
- · Reporting person: The Vanguard Group · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 0 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-03-27
- · Reporting person: Capital International Investors · Sole voting: 2,901,206 · Shared voting: 0 · Sole dispositive: 2,944,558 · Shared dispositive: 0 · SCHEDULE 13G, 2026-02-13
Lennox International Inc has 4 Schedule 13D or 13G filings on record since 2026-02-13. 3 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 |
|---|---|---|---|---|
| Capital International Investors | 8.4% | 2,944,558 | SCHEDULE 13G, 2026-02-13 | 2025-12-31 |
| Vanguard Capital Management | 6.68% | 2,327,689 | SCHEDULE 13G, 2026-04-30 | 2026-03-31 |
| Viking Global Investors LP | 5.2% | 1,815,350 | SCHEDULE 13G, 2026-04-22 | 2026-04-15 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-27 | 2026-03-13 |
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More on Lennox International Inc and the records around it.
Lennox International Inc elsewhere on the record
Companies that share a holder
- VIKING GLOBAL INVESTORS LP also filed stake reports on 27 other companies: City Therapeutics, Inc. (Oct 2026), MID AMERICA APARTMENT COMMUNITIES INC. (Oct 2026), REGAL REXNORD CORP (Sep 2026)
- Capital International Investors also filed stake reports on 96 other companies: Aurora Innovation, Inc. (Nov 2026), Arxis, Inc. (Aug 2026), Astronics Corp. (Aug 2026)
- Vanguard Capital Management also filed stake reports on 1495 other companies: A10 Networks Inc (Oct 2026), Altisource Portfolio Solutions SA (Oct 2026), Alto Neuroscience Inc (Oct 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| Capital International Investors | 2,901,206 | 0 | 2,944,558 | 0 | SCHEDULE 13G, 2026-02-13 |
| Vanguard Capital Management | 273,358 | 0 | 2,327,689 | 0 | SCHEDULE 13G, 2026-04-30 |
| Viking Global Investors LP | 0 | 1,815,350 | 0 | 1,815,350 | SCHEDULE 13G, 2026-04-22 |
| Viking Global Performance LLC | 0 | 1,174,224 | 0 | 1,174,224 | SCHEDULE 13G, 2026-04-22 |
| Viking Global Equities II LP | 0 | 23,495 | 0 | 23,495 | SCHEDULE 13G, 2026-04-22 |
| Viking Global Equities Master Ltd. | 0 | 1,150,729 | 0 | 1,150,729 | SCHEDULE 13G, 2026-04-22 |
| Viking Long Fund GP LLC | 0 | 434,463 | 0 | 434,463 | SCHEDULE 13G, 2026-04-22 |
| Viking Long Fund Master Ltd. | 0 | 434,463 | 0 | 434,463 | SCHEDULE 13G, 2026-04-22 |
| Viking Global Opportunities Parent GP LLC | 0 | 206,663 | 0 | 206,663 | SCHEDULE 13G, 2026-04-22 |
| Viking Global Opportunities GP LLC | 0 | 206,663 | 0 | 206,663 | SCHEDULE 13G, 2026-04-22 |
| Viking Global Opportunities Portfolio GP LLC | 0 | 206,663 | 0 | 206,663 | SCHEDULE 13G, 2026-04-22 |
| Viking Global Opportunities Liquid Portfolio Sub-Master LP | 0 | 206,663 | 0 | 206,663 | SCHEDULE 13G, 2026-04-22 |
| Halvorsen Ole Andreas | 0 | 1,815,350 | 0 | 1,815,350 | SCHEDULE 13G, 2026-04-22 |
| Shabet Rose Sharon | 0 | 1,815,350 | 0 | 1,815,350 | SCHEDULE 13G, 2026-04-22 |
| The Vanguard Group | 0 | 0 | 0 | 0 | SCHEDULE 13G/A, 2026-03-27 |
The latest filing identifies Lennox International Inc by CUSIP 526107107 and gives its principal executive office as 2140 Lake Park Blvd, Richardson, TX 75080 (SCHEDULE 13G, 2026-04-30).
What the percentages are based on
The percentages set forth herein are based on 34,817,885 shares of Common Stock outstanding as of March 26, 2026, as reported by the Issuer in its proxy statement on Schedule 14A, filed with the U.S. Securities and Exchange Commission (the "Commission") on April 8, 2026.Viking Global Investors LP, SCHEDULE 13G, 2026-04-22
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2026-02-13 | Capital International Investors | 8.4% | SCHEDULE 13G |
| 2026-03-27 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-22 | Viking Global Investors LP | 5.2% | SCHEDULE 13G |
| 2026-04-30 | Vanguard Capital Management | 6.68% | SCHEDULE 13G |
Questions about who owns Lennox International Inc
Who owns Lennox International Inc?
On this page, 3 holders' latest ownership filings report 5% or more of Lennox International Inc: Capital International Investors (8.4%, Schedule 13G, filed 2026-02-13), Vanguard Capital Management (6.68%, Schedule 13G, filed 2026-04-30) and Viking Global Investors LP (5.2%, Schedule 13G, filed 2026-04-22).
Who are the largest shareholders of Lennox International Inc?
By the share each holder's latest filing reports, the largest holders of Lennox International Inc on this page are Capital International Investors (8.4%), Vanguard Capital Management (6.68%) and Viking Global Investors LP (5.2%).
When did Capital International Investors buy into Lennox International Inc?
The filings give report dates, not purchase dates. The earliest filing from Capital International Investors on this page is the Schedule 13G, filed 2026-02-13, reporting 8.4%.
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%); 4 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.