American Integrity Insurance Group, Inc.
American Integrity Insurance Group, Inc. (AII) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · AII · as of Sep 30, 2025
Ownership Breakdown
75
Institutional Holders
▲ 20 vs Q2
$413.95M
Total Inst. Value
▲ $263.35M vs Q2
19.59M
Shares Outstanding
freeFloat 34.12%
11.02M
13F Shares Held
▲ 2.83M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
AII largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FRANKLIN RESOURCES INC fire, marine & casualty insurance | 2.99M | 17.62% | 17.62% | $234.70B | Nov 13, 2025 | ▲ 2.83M |
BOSTON PARTNERS fire, marine & casualty insurance | 1.09M | 6.42% | 6.42% | $24.32B | Nov 13, 2025 | ▲ 741.0K |
WASATCH ADVISORS LP fire, marine & casualty insurance | 907.3K | 5.35% | 5.35% | $20.24B | Nov 14, 2025 | ▲ 33.3K |
BALYASNY ASSET MANAGEMENT L.P. fire, marine & casualty insurance | 501.2K | 2.95% | 2.95% | $11.18B | Nov 14, 2025 | ▼ 64.8K |
MINK BROOK ASSET MANAGEMENT LLC fire, marine & casualty insurance | 478.5K | 2.82% | 2.82% | $10.67B | Nov 14, 2025 | ▲ 51.9K |
FREESTONE GROVE PARTNERS LP fire, marine & casualty insurance | 465.4K | 2.74% | 2.74% | $10.38B | Nov 14, 2025 | ▲ 27.4K |
BLACKROCK, INC. fire, marine & casualty insurance | 441.1K | 2.60% | 2.60% | $9.84B | Nov 12, 2025 | ▲ 316.4K |
VANGUARD GROUP INC fire, marine & casualty insurance | 439.6K | 2.59% | 2.59% | $9.81B | Nov 7, 2025 | ▲ 45.6K |
MANUFACTURERS LIFE INSURANCE COMPANY, THE fire, marine & casualty insurance | 426.9K | 2.52% | 2.52% | $9.52B | Nov 14, 2025 | ▲ 26.9K |
ALYESKA INVESTMENT GROUP, L.P. fire, marine & casualty insurance | 309.9K | 1.83% | 1.83% | $6.91B | Nov 17, 2025 | — held |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
22
Increased
+4.73M shares11
New Positions
first time holders10
Decreased
−871.8K shares0
Sold Out
fully exitedNet shares change (top 50)
+3.85M
+4.73M / −871.8K
Net new holders
+23
11 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
AII insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
4
Buy transactions
3
Sell transactions
1.33
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
MATHIS STEVEN B director | May 26, 2026 | Purchase | 3,000 | $16.82 | $50.5K | 6.1K | Form 4 ↗ |
Smathers Steven E director | May 22, 2026 | Purchase | 2,900 | $16.99 | $49.3K | 177.8K | Form 4 ↗ |
Clark David Lewis Chairman | May 22, 2026 | Purchase | 5,830 | $17.15 | $100.0K | 23.4K | Form 4 ↗ |
Ritchie Robert C Chief Executive Officer | May 7, 2026 | Tax Withhold | 2,921 | $19.67 | $57.5K | 2.43M | Form 4 ↗ |
Ritchie Jon P President | May 7, 2026 | Tax Withhold | 1,538 | $19.67 | $30.3K | 179.7K | Form 4 ↗ |
Clark David Lewis Chairman | May 7, 2026 | Tax Withhold | 1,230 | $19.67 | $24.2K | 17.6K | Form 4 ↗ |
Foley Brian Chief Financial Officer | Apr 6, 2026 | Award | 4,262 | — | — | 4.3K | Form 4 ↗ |
Csiszar Ernest N director | Mar 31, 2026 | Award | 778 | — | — | 3.1K | Form 4 ↗ |
Smathers Steven E director | Mar 31, 2026 | Award | 778 | — | — | 174.9K | Form 4 ↗ |
MATHIS STEVEN B director | Mar 31, 2026 | Award | 778 | — | — | 3.1K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
American Integrity Insurance Group, Inc. (AII) is primarily owned by institutional investors, who hold approximately 56.2% of total shares outstanding. Company insiders own approximately 65.88%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of American Integrity Insurance Group, Inc. is FRANKLIN RESOURCES INC, holding approximately 2.99 million shares — equal to 17.62% of outstanding shares — as of September 30, 2025.
A total of 75 institutional investors currently hold AII stock, with a combined institutional value of approximately $413,945,491 as of the most recent 13F filing period.
Frequently asked questions
AII ownershipAmerican Integrity Insurance Group, Inc. (AII) is primarily owned by institutional investors, who hold approximately 56.2% of shares. The largest shareholder is FRANKLIN RESOURCES INC with a 17.62% stake. Company insiders hold 65.88%. Data sourced from SEC Form 13F as of September 30, 2025.