As of November 6, 2026, 4 holders' latest Schedule 13D or 13G filings report owning 5% or more of American Integrity Insurance Group, Inc. The largest reported stake is James E. Sowell's, at 22.9%. 8 filings are on record since August 13, 2025 (Schedule 13G/A, February 17, 2026).
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Key facts
- · Reporting person: Boston Partners · Sole voting: 1,468,404 · Shared voting: 0 · Sole dispositive: 1,468,404 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-05-14
- · Reporting person: Wasatch Advisors LP · Sole voting: 1,112,592 · Shared voting: 0 · Sole dispositive: 1,192,192 · Shared dispositive: 0 · SCHEDULE 13G, 2026-04-22
- · Reporting person: James E. Sowell · Sole voting: 4,473,824 · Shared voting: 0 · Sole dispositive: 4,473,824 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-02-17
- · Reporting person: Robert C. Ritchie · Sole voting: 2,394,946 · Shared voting: 0 · Sole dispositive: 2,394,946 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-02-17
- · Holder: Boston Partners · Percent: 6.07% · SCHEDULE 13G/A
American Integrity Insurance Group, Inc. has 8 Schedule 13D or 13G filings on record since 2025-08-13. 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 |
|---|---|---|---|---|
| 22.9% | 4,473,824 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 | |
| 12.2% | 2,394,946 | SCHEDULE 13G/A, 2026-02-17 | 2025-12-31 | |
| Boston Partners | 7.5% | 1,468,404 | SCHEDULE 13G/A, 2026-05-14 | 2026-03-31 |
| Wasatch Advisors LP | 6.1% | 1,192,192 | SCHEDULE 13G, 2026-04-22 | 2026-03-31 |
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More on American Integrity Insurance Group, Inc. and the records around it.
American Integrity Insurance Group, Inc. elsewhere on the record
- Leadership changes Apr 2026
- IPO filing Nov 2025
- Who owns it
Companies that share a holder
- James E. Sowell also filed stake reports on 1 other company: Westrock Coffee Company (Nov 2025)
- Boston Partners also filed stake reports on 28 other companies: CROSS COUNTRY HEALTHCARE INC (Nov 2026), DoubleDown Interactive Co., Ltd. (Nov 2026), Holley Inc. (Aug 2026)
- Wasatch Advisors LP also filed stake reports on 72 other companies: Smith Douglas Homes Corp (Oct 2026), Amtech Systems Inc (Oct 2026), BBB Foods Inc (Oct 2026)
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| James E. Sowell | 4,473,824 | 0 | 4,473,824 | 0 | SCHEDULE 13G/A, 2026-02-17 |
| Sowell Investments Holding Co., LLC | 4,473,824 | 0 | 4,473,824 | 0 | SCHEDULE 13G/A, 2026-02-17 |
| Robert C. Ritchie | 2,394,946 | 0 | 2,394,946 | 0 | SCHEDULE 13G/A, 2026-02-17 |
| Boston Partners | 1,468,404 | 0 | 1,468,404 | 0 | SCHEDULE 13G/A, 2026-05-14 |
| Wasatch Advisors LP | 1,112,592 | 0 | 1,192,192 | 0 | SCHEDULE 13G, 2026-04-22 |
The latest filing identifies American Integrity Insurance Group, Inc. by CUSIP 026948109 and gives its principal executive office as 3000 BAYPORT DRIVE, SUITE 500, TAMPA, FL 33607 (SCHEDULE 13G/A, 2026-05-14).
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-08-13 | James E. Sowell | 36.4% | SCHEDULE 13G |
| 2025-08-13 | Robert C. Ritchie | 15% | SCHEDULE 13G |
| 2025-11-03 | Boston Partners | 5.56% | SCHEDULE 13G |
| 2026-01-16 | Boston Partners | 6.07% | SCHEDULE 13G/A |
| 2026-02-17 | Robert C. Ritchie | 12.2% | SCHEDULE 13G/A |
| 2026-02-17 | James E. Sowell | 22.9% | SCHEDULE 13G/A |
| 2026-04-22 | Wasatch Advisors LP | 6.1% | SCHEDULE 13G |
| 2026-05-14 | Boston Partners | 7.5% | SCHEDULE 13G/A |
Questions about who owns American Integrity Insurance Group, Inc.
Who owns American Integrity Insurance Group, Inc.?
On this page, 4 holders' latest ownership filings report 5% or more of American Integrity Insurance Group, Inc.: James E. Sowell (22.9%, Schedule 13G/A, filed 2026-02-17), Robert C. Ritchie (12.2%, Schedule 13G/A, filed 2026-02-17), Boston Partners (7.5%, Schedule 13G/A, filed 2026-05-14) and Wasatch Advisors LP (6.1%, Schedule 13G, filed 2026-04-22).
Who are the largest shareholders of American Integrity Insurance Group, Inc.?
By the share each holder's latest filing reports, the largest holders of American Integrity Insurance Group, Inc. on this page are James E. Sowell (22.9%), Robert C. Ritchie (12.2%) and Boston Partners (7.5%).
When did James E. Sowell buy into American Integrity Insurance Group, Inc.?
The filings give report dates, not purchase dates. The earliest filing from James E. Sowell on this page is the Schedule 13G, filed 2025-08-13, reporting 36.4%; its latest, Schedule 13G/A filed 2026-02-17, reports 22.9%.
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%); 8 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.
Also on the record for American Integrity Insurance Group, Inc.
| Date | Record | Figure | Our page | Source |
|---|---|---|---|---|
| April 6, 2026 | Leadership change: Brian Foley appointed, Chief Financial Officer, and 1 more | — | Leadership changes | Source |
| November 20, 2025 | IPO filing, Form 424B4 | — | IPO filings | Source |
| November 17, 2025 | IPO filing, Form S-1 | — | IPO filings | Source |
| May 8, 2025 | IPO filing, Form 424B4 | $16 a share | IPO filings | Source |
| April 29, 2025 | IPO filing, Form S-1/A | $15 to $17 a share | IPO filings | Source |
| April 14, 2025 | IPO filing, Form S-1 | — | IPO filings | Source |
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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.