Assurant, Inc.
MX ˙ BMV ˙ US04621X1081
SecurityMX:AIZ / Assurant, Inc.
InstitutionNorthwestern Mutual Wealth Management Co
Latest Disclosed Ownership2,032 shares
Latest Disclosed Value $ 442,590
Northwestern Mutual Wealth Management Co reports 124.53% increase in ownership of AIZ / Assurant, Inc.

On May 7, 2026 - Northwestern Mutual Wealth Management Co filed a 13F-HR form disclosing ownership of 2,032 shares of Assurant, Inc. (MX:AIZ) valued at $442,590 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 10, 2026 disclosing 905 shares of Assurant, Inc.. This represents a change in shares of 124.53% 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)
2026-05-07 2026-03-31 13F ASSURANT COM 04621X108 2,032 1,127 124.53 443 103.69 0.0003
2026-02-10 2025-12-31 13F/A-1 ASSURANT COM 04621X108 905 191 26.75 218 40.91 0.0001
2026-02-05 2025-12-31 13F ASSURANT COM 04621X108 27,133 26,419 1,611 0.0010
2025-11-14 2025-09-30 13F ASSURANT COM 04621X108 714 379 113.13 155 133.33 0.0001
2025-08-13 2025-06-30 13F ASSURANT COM 04621X108 335 -9 -2.62 66 -8.33 0.0000
2025-05-14 2025-03-31 13F ASSURANT COM 04621X108 344 -75 -17.90 72 -19.10 0.0001
2025-02-11 2024-12-31 13F ASSURANT COM 04621X108 419 -9 -2.10 89 4.71 0.0001
2024-11-12 2024-09-30 13F ASSURANT COM 04621X108 428 195 83.69 85 123.68 0.0001
2024-08-16 2024-06-30 13F ASSURANT COM 04621X108 233 15 6.88 39 -7.32 0.0000
2024-05-15 2024-03-31 13F ASSURANT COM 04621X108 218 31 16.58 41 32.26 0.0000
2024-02-13 2023-12-31 13F ASSURANT COM 04621X108 187 10 5.65 32 24.00 0.0000
2023-11-14 2023-09-30 13F ASSURANT COM 04621X108 177 -13 -6.84 25 8.70 0.0000
2023-08-14 2023-06-30 13F ASSURANT COM 04621X108 190 13 7.34 24 9.52 0.0000
2023-05-15 2023-03-31 13F ASSURANT COM 04621X108 177 -5 -2.75 21 -4.55 0.0000
2023-02-21 2022-12-31 13F ASSURANT COM 04621X108 182 -75 -29.18 23 -40.54 0.0000
2022-11-14 2022-09-30 13F ASSURANT COM 04621X108 257 85 49.42 37 23.33 0.0001
2022-08-04 2022-06-30 13F ASSURANT COM 04621X108 172 58 50.88 30 42.86 0.0001
2022-05-09 2022-03-31 13F ASSURANT COM 04621X108 114 -52 -31.33 21 -19.23 0.0000
2022-02-03 2021-12-31 13F ASSURANT COM 04621X108 166 -71 -29.96 26 -31.58 0.0000
2021-11-15 2021-09-30 13F ASSURANT COM 04621X108 237 49 26.06 38 26.67 0.0001
2021-08-13 2021-06-30 13F ASSURANT COM 04621X108 188 50 36.23 30 50.00 0.0001
2021-05-14 2021-03-31 13F ASSURANT COM 04621X108 138 120 666.67 20 900.00 0.0000
2021-02-12 2020-12-31 13F ASSURANT COM 04621X108 18 -124 -87.32 2 -88.24 0.0000
2020-11-13 2020-09-30 13F ASSURANT COM 04621X108 142 142 17 0.0000
2020-08-14 2020-06-30 13F ASSURANT COM 04621X108 0 -6 -100.00 0 -100.00
2020-05-08 2020-03-31 13F ASSURANT COM 04621X108 6 -344 -98.29 1 -97.83 0.0000
2020-02-13 2019-12-31 13F ASSURANT COM 04621X108 350 0 0.00 46 4.55 0.0002
2019-11-12 2019-09-30 13F ASSURANT COM 04621X108 350 350 44 0.0002
2019-05-10 2019-03-31 13F ASSURANT COM 04621X108 0 -44 -100.00 0 -100.00
2019-02-12 2018-12-31 13F ASSURANT COM 04621X108 44 -186 -80.87 4 -82.61 0.0000
2018-11-01 2018-09-30 13F ASSURANT COM 04621X108 230 -3 -1.29 23 -4.17 0.0001
2018-08-10 2018-06-30 13F ASSURANT COM 04621X108 233 26 12.56 24 26.32 0.0001
2018-05-14 2018-03-31 13F ASSURANT COM 04621X108 207 -55 -20.99 19 -26.92 0.0001
2018-01-31 2017-12-31 13F ASSURANT COM 04621X108 262 -73 -21.79 26 -18.75 0.0002
2017-11-07 2017-09-30 13F ASSURANT COM 04621X108 335 8 2.45 32 -5.88 0.0002
2017-08-10 2017-06-30 13F ASSURANT COM 04621X108 327 0 0.00 34 9.68 0.0003
2017-05-09 2017-03-31 13F ASSURANT COM 04621X108 327 -309 -48.58 31 -49.18 0.0003
2017-02-15 2016-12-31 13F ASSURANT COM 04621X108 636 463 267.63 61 281.25 0.0007
2016-11-14 2016-09-30 13F ASSURANT COM 04621X108 173 173 0.00 16 0.0002
2016-08-29 2016-06-30 13F ASSURANT COM 04621X108 0 -250 -100.00 0 -100.00
2016-05-16 2016-03-31 13F ASSURANT COM 04621X108 250 250 0.00 19 0.0003
2016-02-16 2015-12-31 13F ASSURANT COM 04621X108 0 -323 -100.00 0 -100.00
2015-11-16 2015-09-30 13F ASSURANT COM 04621X108 323 3 0.94 26 18.18 0.0006
2015-09-30 2015-06-30 13F/A-1 ASSURANT COM 04621X108 320 -20 -5.88 22 4.76 0.0006
2015-08-14 2015-06-30 13F ASSURANT COM 04621X108 679 46
2015-05-15 2015-03-31 13F ASSURANT COM 04621X108 340 81 31.27 21 16.67 0.0006
2015-02-13 2014-12-31 13F ASSURANT COM 04621X108 259 224 640.00 18 800.00 0.0006
2014-02-14 2013-12-31 13F ASSURANT COM 04621X108 35 35 -99.79 2 -99.76 0.0001
2013-11-14 2013-09-30 13F ASSURANT COM 04621X108 0 -16,300 -100.00 0 -100.00
2013-08-14 2013-06-30 13F ASSURANT COM 04621X108 16,300 16,300 830 0.0091
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.