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AIZ · Assurant, Inc.

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Market Cap
$14.01B
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: 615
Total Value: $13,063,146,240
Total Shares: 48,654,268
Showing 1–100 of 623 holdings by value · page 1 of 7

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 615 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 – 608
Broadly held−6

Quarterly Activity

vs Mar 31, 2026
New
101
Increased
227
Decreased
200
Sold Out
73
Unchanged
87
Holder count: +28
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 623
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1267238 CUSIP 04621X108 13F (30d) 425 filings 419 filers Visit website Investor relations