Assurant, Inc.
MX ˙ BMV ˙ US04621X1081
SecurityMX:AIZ / Assurant, Inc.
InstitutionCalamos Advisors LLC
Latest Disclosed Ownership107,355 shares
Latest Disclosed Value $ 23,382,993
Calamos Advisors LLC reports 1.46% increase in ownership of AIZ / Assurant, Inc.

On May 4, 2026 - Calamos Advisors LLC filed a 13F-HR form disclosing ownership of 107,355 shares of Assurant, Inc. (MX:AIZ) valued at $23,382,993 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 105,812 shares of Assurant, Inc.. This represents a change in shares of 1.46% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-04 2026-03-31 13F ASSURANT COM 04621X108 107,355 1,543 1.46 23,383 -8.25 0.0825
2026-01-29 2025-12-31 13F ASSURANT COM 04621X108 105,812 -2,668 -2.46 25,485 8.46 0.0952
2025-10-20 2025-09-30 13F ASSURANT COM 04621X108 108,480 307 0.28 23,497 9.98 0.0868
2025-08-08 2025-06-30 13F ASSURANT COM 04621X108 108,173 68 0.06 21,363 -5.79 0.0841
2025-04-29 2025-03-31 13F ASSURANT COM 04621X108 108,105 1,061 0.99 22,675 -0.65 0.0987
2025-01-24 2024-12-31 13F ASSURANT COM 04621X108 107,044 296 0.28 22,824 7.52 0.0955
2024-11-07 2024-09-30 13F ASSURANT COM 04621X108 106,748 -1,126 -1.04 21,228 18.36 0.0918
2024-07-25 2024-06-30 13F ASSURANT COM 04621X108 107,874 -2,337 -2.12 17,934 -13.55 0.0797
2024-05-08 2024-03-31 13F ASSURANT COM 04621X108 110,211 -1,667 -1.49 20,746 10.06 0.0983
2024-01-31 2023-12-31 13F ASSURANT COM 04621X108 111,878 -694 -0.62 18,850 16.62 0.0914
2023-10-26 2023-09-30 13F ASSURANT COM 04621X108 112,572 332 0.30 16,163 14.55 0.0840
2023-07-28 2023-06-30 13F ASSURANT COM 04621X108 112,240 127 0.11 14,111 4.82 0.0698
2023-05-04 2023-03-31 13F ASSURANT COM 04621X108 112,113 -10,265 -8.39 13,461 -12.04 0.0657
2023-01-26 2022-12-31 13F ASSURANT COM 04621X108 122,378 -15,944 -11.53 15,305 -23.84 0.0718
2022-10-24 2022-09-30 13F ASSURANT COM 04621X108 138,322 86 0.06 20,094 -15.90 0.0919
2022-08-01 2022-06-30 13F ASSURANT COM 04621X108 138,236 2,942 2.17 23,894 -2.87 0.1030
2022-05-03 2022-03-31 13F ASSURANT COM 04621X108 135,294 13,954 11.50 24,601 30.08 0.0924
2022-02-01 2021-12-31 13F ASSURANT COM 04621X108 121,340 3,437 2.92 18,912 1.68 0.0707
2021-10-26 2021-09-30 13F ASSURANT COM 04621X108 117,903 7,698 6.99 18,599 8.06 0.0812
2021-07-22 2021-06-30 13F ASSURANT COM 04621X108 110,205 18,089 19.64 17,212 31.80 0.0786
2021-04-12 2021-03-31 13F ASSURANT COM 04621X108 92,116 32,569 54.69 13,059 61.00 0.0712
2021-01-27 2020-12-31 13F ASSURANT COM 04621X108 59,547 -2,579 -4.15 8,111 7.62 0.0471
2020-10-26 2020-09-30 13F ASSURANT COM 04621X108 62,126 -5,453 -8.07 7,537 7.98 0.0485
2020-07-27 2020-06-30 13F ASSURANT COM 04621X108 67,579 -4,484 -6.22 6,980 -6.95 0.0493
2020-04-28 2020-03-31 13F ASSURANT COM 04621X108 72,063 -7,294 -9.19 7,501 -27.89 0.0589
2020-01-15 2019-12-31 13F ASSURANT COMMON STOCK 04621X108 79,357 -1,282 -1.59 10,402 2.52 0.0514
2019-10-21 2019-09-30 13F ASSURANT COMMON STOCK 04621X108 80,639 6,877 9.32 10,146 29.30 0.0553
2019-08-07 2019-06-30 13F ASSURANT COMMON STOCK 04621X108 73,762 3,603 5.14 7,847 17.84 0.0436
2019-04-12 2019-03-31 13F ASSURANT COMMON STOCK 04621X108 70,159 692 1.00 6,659 7.18 0.0416
2019-01-24 2018-12-31 13F ASSURANT COMMON STOCK 04621X108 69,467 10,190 17.19 6,213 -2.91 0.0410
2018-10-22 2018-09-30 13F ASSURANT COMMON STOCK 04621X108 59,277 5,112 9.44 6,399 14.15 0.0352
2018-07-17 2018-06-30 13F ASSURANT COMMON STOCK 04621X108 54,165 54,165 5,606 0.0343
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.