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AIZ · Assurant, Inc.

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Market Cap
$14.11B
Shares
49.32M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 616
Total Value: $13,063,266,809
Total Shares: 48,654,717
Showing 1–100 of 624 holdings by value · page 1 of 7

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 616 13F filers · Δ vs Mar 31, 2026
Top Holder
10.3%
Sep 2023 → Jun 2026 · range 10.2% – 14.2%
+0.1 pts
Top 5
37.7%
Sep 2023 → Jun 2026 · range 37.7% – 48.5%
−1.1 pts
Top 10
53.0%
Sep 2023 → Jun 2026 · range 53.0% – 64.6%
−1.7 pts
HHI
396
Sep 2023 → Jun 2026 · range 396 – 607
Broadly held−6

Quarterly Activity

vs Mar 31, 2026
New
101
Increased
228
Decreased
200
Sold Out
72
Unchanged
87
Holder count: +29
Institutional value: +27.3%
Shares held: +3.3%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 624
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1267238 CUSIP 04621X108 13F (30d) 396 filings 387 filers Visit website Investor relations