American Integrity Insurance Group, Inc. (AII) Ownership

NYSE: AIITop holders, insider trades and short interest.

AII ownership summary

as of October 18, 2026
Institutions
60.3%
of shares outstanding
Insiders
36.14%
of shares outstanding
Shares outstanding
19.6M
Float
12.3M
shares available to trade
Short interest
3.86%
460K shares short
Days to cover
2.13
short interest up 171.2% vs prior month
  • Institutions 60.31%
  • Insiders 36.14%
  • Other investors 3.54%

AII top institutional holders

20 largest
American Integrity Insurance Group, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1Boston Partners Global Investors, Inc7.80%1.5M$42.0M+53,365 (+3.6%)June 30, 2026
2Wasatch Advisors LP6.44%1.3M$34.7M+67,977 (+5.7%)June 30, 2026
3Mink Brook Asset Management LLC5.00%978K$26.9M+135,531 (+16.1%)June 30, 2026
4BlackRock Inc4.54%888K$24.4M+138,225 (+18.4%)June 30, 2026
5Pacific Ridge Capital Partners, LLC2.96%579K$15.9M+190,024 (+48.8%)June 30, 2026
6Freestone Grove Partners LP2.51%491K$13.5M−67,925 (−12.1%)June 30, 2026
7Vanguard Capital Management, LLC2.34%459K$12.6M+3,687 (+0.8%)June 30, 2026
8Geode Capital Management, LLC1.50%294K$8.1M+28,419 (+10.7%)June 30, 2026
9Two Sigma Investments LLC1.50%294K$8.1M−45,469 (−13.4%)June 30, 2026
10American Century Companies Inc1.44%282K$7.8M+85,753 (+43.6%)June 30, 2026
11State Street Corp1.10%216K$5.9M+29,551 (+15.8%)June 30, 2026
12Citadel Advisors Llc1.10%216K$5.9M+17,760 (+9.0%)June 30, 2026
13Bank of America Corp1.07%209K$5.8M−84,113 (−28.7%)June 30, 2026
14Acadian Asset Management LLC0.88%173K$4.8M−36,121 (−17.3%)June 30, 2026
15Algert Global LLC0.79%155K$4.3M+155,356 (0.0%)June 30, 2026
16State Of Wisconsin Investment Board0.66%130K$3.6M−14,101 (−9.8%)June 30, 2026
17Renaissance Technologies Corp0.61%120K$3.3M−17,095 (−12.5%)June 30, 2026
18Donald Smith & Co Inc0.59%116K$3.2M+116,420 (0.0%)June 30, 2026
19Los Angeles Capital Management LLC0.57%112K$3.1M+102,805 (+1,159.7%)March 31, 2026
20Marshall Wace Asset Management Ltd0.55%108K$3.0M+36,345 (+50.9%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 14 holders added 1.2M shares and 6 cut 265K.

AII top mutual fund and ETF holders

20 largest
American Integrity Insurance Group, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Wasatch Micro Cap3.11%609K$16.8M+80,170 (+15.2%)June 30, 2026
2Column Small Cap Select2.48%486K$13.4M—June 30, 2026
3Vanguard MStar Total Stk Mkt Idx Invest1.88%369K$10.1M—August 31, 2026
4Wasatch Micro Cap Value1.80%353K$9.7M—June 30, 2026
5iShares Russell 2000 ETF1.74%340K$9.4M+9,955 (+3.0%)September 30, 2026
6Avantis US Small Cap Value ETF1.69%331K$9.1M+1,032 (+0.3%)September 30, 2026
7Adara Smaller Companies1.17%228K$6.3M—August 31, 2026
8WPG Partners Select Small Cap Value Ins1.01%198K$5.4M+5,558 (+2.9%)July 31, 2026
9Fidelity Small Cap Index0.68%132K$3.6M+782 (+0.6%)July 31, 2026
10iShares Russell 2000 Value ETF0.60%117K$3.2M+178 (+0.2%)September 30, 2026
11Inspire Fidelis Multi Factor ETF0.47%93K$2.6M—September 30, 2026
12Russell Inv US Small Cap Equity Y0.39%77K$2.1M−2,396 (−3.0%)August 31, 2026
13BSF Systematic US Eq Abs Ret A2 USD0.38%75K$2.1M+26,553 (+54.7%)December 31, 2025
14Vanguard Russell 2000 ETF0.36%70K$1.9M+1,440 (+2.1%)August 31, 2026
15GuideStone Funds Small Cap Equity Instl0.35%69K$1.9M+20,659 (+43.2%)September 30, 2026
16Schwab US Small-Cap ETF™0.31%61K$1.7M+36 (+0.1%)September 30, 2026
17EA Bridgeway Omni Small-Cap Value ETF0.27%53K$1.4M+12,500 (+31.2%)September 30, 2026
18North Square Dynamic Small Cap I0.27%52K$1.4M+51,906 (0.0%)June 30, 2026
19First Trust Dow Jones Sel MicroCap ETF0.26%51K$1.4M—September 30, 2026
20Russell Inv Multi-Asset Strat S0.21%41K$1.1M−2,120 (−4.9%)August 31, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

AII insider transactions

latest 5
American Integrity Insurance Group, Inc. insider transactions
DateNameTransactionPriceSharesValue
2025-12-05James E SowellSell$19.00295,037$5.6M
2025-12-05Robert C RitchieSell$19.0059,554$1.1M
2025-11-21James E SowellSell$19.002,353,200$44.7M
2025-11-21Robert C RitchieSell$19.00475,000$9.0M
2025-11-21Steven E SmathersSell$19.00171,800$3.3M

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

Who owns AII

Institutional investors own 60.3% of American Integrity Insurance's shares and insiders 36.14%. The largest holder is Boston Partners Global Investors, Inc with 7.80% of the shares (1.5M), as of June 30, 2026. Among the top 20 institutions, 14 added shares and 6 reduced their stake in the latest filings. Short interest is 3.86% of the float, or 2.13 days of average trading volume.

Related: AII analyst forecast, AII key metrics. See the AII stock overview for the latest quote and news.

AII ownership FAQ

Who owns the most American Integrity Insurance stock?

The largest shareholders of American Integrity Insurance are Boston Partners Global Investors, Inc (7.80%), Wasatch Advisors LP (6.44%), Mink Brook Asset Management LLC (5.00%), BlackRock Inc (4.54%), Pacific Ridge Capital Partners, LLC (2.96%).

What percentage of American Integrity Insurance is owned by institutions?

Institutions hold 60.3% of American Integrity Insurance's shares outstanding; insiders hold 36.14%.

Which funds own American Integrity Insurance?

The largest fund holders of American Integrity Insurance are Wasatch Micro Cap (3.11%), Column Small Cap Select (2.48%), Vanguard MStar Total Stk Mkt Idx Invest (1.88%), Wasatch Micro Cap Value (1.80%), iShares Russell 2000 ETF (1.74%).

What is American Integrity Insurance's short interest?

460K shares of American Integrity Insurance were sold short, 3.86% of the float; at the average daily volume it would take 2.13 days to cover.

Are insiders buying or selling American Integrity Insurance?

Of the latest 5 reported insider transactions in American Integrity Insurance (since November 21, 2025), 0 were purchases and 5 were sales.

How many shares of American Integrity Insurance are outstanding?

American Integrity Insurance has 19.6M shares outstanding, of which 12.3M are in the public float.

Insurance - Property & Casualty: ownership