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American Integrity Insurance Group, Inc. (AII) institutional ownership

Latest close $18.67 Jul 24, 2026
Market cap$362M 52-week range SectorFinancial Services
Funds holding · Q1 2026
101
reported AII position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
63 buyers · 38 sellers

American Integrity Insurance Group, Inc. (AII) price and institutional activity

Dates

Q1 2026

$0 bought by 63 investors
Wasatch Advisors LPBoston Partners +61 more
$0 sold by 38 investors
Alyeska Investment Group, L.P.Gillson Capital LP +36 more
Bought Sold Totals per quarter; hover a bar for the names.

American Integrity Insurance Group, Inc. (AII) institutional activity · 101

Investor Type Est. change Change Δ Own Date
Wasatch Advisors LP · Added
Change +332K Date Q1 2026
Wasatch Advisors LP Added· Q1 2026 +332K Q1 2026
Boston Partners · Added
Change +283K Date Q1 2026
Boston Partners Added· Q1 2026 +283K Q1 2026
Alyeska Investment Group, L.P. · Reduced
Change −224K Date Q1 2026
Alyeska Investment Group, L.P. Reduced· Q1 2026 −224K Q1 2026
BlackRock · Added
Change +211K Date Q1 2026
BlackRock Added· Q1 2026 +211K Q1 2026
Mink Brook Asset Management LLC · Added
Change +194K Date Q1 2026
Mink Brook Asset Management LLC Added· Q1 2026 +194K Q1 2026
Gillson Capital LP · Exited
Change −162K Δ Own −100.0% Date Q1 2026
Gillson Capital LP Exited· Q1 2026 −162K −100.0% Q1 2026
Fj Capital Management LLC · Exited
Change −153K Δ Own −100.0% Date Q1 2026
Fj Capital Management LLC Exited· Q1 2026 −153K −100.0% Q1 2026
Balyasny Asset Management L.P. · Reduced
Change −148K Date Q1 2026
Balyasny Asset Management L.P. Reduced· Q1 2026 −148K Q1 2026
Citadel Advisors LLC Reduced· Q1 2026 −132K −39.9% Q1 2026
Two Sigma Investments, LP · Added
Change +122K Δ Own +56.4% Date Q1 2026
Two Sigma Investments, LP Added· Q1 2026 +122K +56.4% Q1 2026
Millennium Management LLC · Reduced
Change −113K Date Q1 2026
Millennium Management LLC Reduced· Q1 2026 −113K Q1 2026
Los Angeles Capital Management LLC · Added
Change +103K Date Q1 2026
Los Angeles Capital Management LLC Added· Q1 2026 +103K Q1 2026
American Century Companies Inc · Added
Change +99K Date Q1 2026
American Century Companies Inc Added· Q1 2026 +99K Q1 2026
Gamco Investors, Inc. Et Al · Exited
Change −81K Δ Own −100.0% Date Q1 2026
Gamco Investors, Inc. Et Al Exited· Q1 2026 −81K −100.0% Q1 2026
Jane Street Group, LLC · Exited
Change −80K Δ Own −100.0% Date Q1 2026
Jane Street Group, LLC Exited· Q1 2026 −80K −100.0% Q1 2026
Data through Q1 2026 · filed Jun 3, 2026
15 of 101

Famous investor activity in American Integrity Insurance Group, Inc. (AII)

American Integrity Insurance Group, Inc. (AII) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Mathis Steven B. · Director Grant (A) 870
Owned 7K ΔOwn +14.2% Trade date Jun 30, 2026 Filed date Jul 2, 2026
Mathis Steven B. Director Grant (A) 870 7K +14.2% Jun 30, 2026 Jul 2, 2026
Smathers Steven E. · Director Grant (A) 870
Owned 179K ΔOwn +0.5% Trade date Jun 30, 2026 Filed date Jul 2, 2026
Smathers Steven E. Director Grant (A) 870 179K +0.5% Jun 30, 2026 Jul 2, 2026
Csiszar Ernest N. · Director Grant (A) 870
Owned 4K ΔOwn +27.8% Trade date Jun 30, 2026 Filed date Jul 2, 2026
Csiszar Ernest N. Director Grant (A) 870 4K +27.8% Jun 30, 2026 Jul 2, 2026
Sowell James E. · 10% Owner Buy +$1.3M
Price $16.85 Qty +79K Owned 4.6M Trade date Jun 9, 2026 Filed date Jun 11, 2026
Sowell James E. 10% Owner Buy $16.85 +79K +$1.3M 4.6M Jun 9, 2026 Jun 11, 2026
Sowell James E. · 10% Owner Buy +$569K
Price $16.91 Qty +34K Owned 4.5M Trade date Jun 8, 2026 Filed date Jun 11, 2026
Sowell James E. 10% Owner Buy $16.91 +34K +$569K 4.5M Jun 8, 2026 Jun 11, 2026
Sowell James E. · 10% Owner Buy +$393K
Price $16.92 Qty +23K Owned 4.5M Trade date Jun 5, 2026 Filed date Jun 11, 2026
Sowell James E. 10% Owner Buy $16.92 +23K +$393K 4.5M Jun 5, 2026 Jun 11, 2026
Mathis Steven B. · Director Buy +$50K
Price $16.82 Qty +3K Owned 6K Trade date May 26, 2026 Filed date May 27, 2026
Mathis Steven B. Director Buy $16.82 +3K +$50K 6K May 26, 2026 May 27, 2026
Smathers Steven E. · Director Buy +$49K
Price $16.99 Qty +3K Owned 178K Trade date May 22, 2026 Filed date May 27, 2026
Smathers Steven E. Director Buy $16.99 +3K +$49K 178K May 22, 2026 May 27, 2026
Clark David Lewis · Director Buy +$100K
Price $17.15 Qty +6K Owned 23K Trade date May 22, 2026 Filed date May 26, 2026
Clark David Lewis Director Buy $17.15 +6K +$100K 23K May 22, 2026 May 26, 2026
Ritchie Robert C. · Director Tax withholding or exercise payment (F) -$57K
Price $19.67 Qty -3K Owned 2.4M Trade date May 7, 2026 Filed date May 11, 2026
Ritchie Robert C. Director Tax withholding or exercise payment (F) $19.67 -3K -$57K 2.4M May 7, 2026 May 11, 2026
Ritchie Jon P. · Officer Tax withholding or exercise payment (F) -$30K
Price $19.67 Qty -2K Owned 180K Trade date May 7, 2026 Filed date May 11, 2026
Ritchie Jon P. Officer Tax withholding or exercise payment (F) $19.67 -2K -$30K 180K May 7, 2026 May 11, 2026
Clark David Lewis · Director Tax withholding or exercise payment (F) -$24K
Price $19.67 Qty -1K Owned 18K Trade date May 7, 2026 Filed date May 11, 2026
Clark David Lewis Director Tax withholding or exercise payment (F) $19.67 -1K -$24K 18K May 7, 2026 May 11, 2026
Foley Brian · CFO Grant (A) 4K
Owned 4K Trade date Apr 6, 2026 Filed date Apr 8, 2026
Foley Brian CFO Grant (A) 4K 4K Apr 6, 2026 Apr 8, 2026
Csiszar Ernest N. · Director Grant (A) 778
Owned 3K Trade date Mar 31, 2026 Filed date Apr 1, 2026
Csiszar Ernest N. Director Grant (A) 778 3K Mar 31, 2026 Apr 1, 2026
Smathers Steven E. · Director Grant (A) 778
Owned 175K Trade date Mar 31, 2026 Filed date Apr 1, 2026
Smathers Steven E. Director Grant (A) 778 175K Mar 31, 2026 Apr 1, 2026
15 of 38
15 of 38 Sign in to continue to older insider transactions.

American Integrity Insurance Group, Inc. (AII) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Boston Partners 1.5M
% of shares outstanding 7.5% Filing date May 14, 2026
Boston Partners 1.5M 7.5% May 14, 2026
Wasatch Advisors LP 1.2M
% of shares outstanding 6.1% Filing date Apr 22, 2026
Wasatch Advisors LP 1.2M 6.1% Apr 22, 2026
2 of 2

American Integrity Insurance Group, Inc. (AII) ownership FAQ

Who owns AII?

101 reporting institutions disclosed AII position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.