Assurant, Inc.
MX ˙ BMV ˙ US04621X1081
SecurityMX:AIZ / Assurant, Inc.
InstitutionAssetmark, Inc
Latest Disclosed Ownership435 shares
Latest Disclosed Value $ 94,747
Assetmark, Inc reports 19.83% increase in ownership of AIZ / Assurant, Inc.

On May 6, 2026 - Assetmark, Inc filed a 13F-HR form disclosing ownership of 435 shares of Assurant, Inc. (MX:AIZ) valued at $94,747 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 363 shares of Assurant, Inc.. This represents a change in shares of 19.83% 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)
2026-05-06 2026-03-31 13F ASSURANT COM 04621X108 435 72 19.83 95 8.05 0.0002
2026-01-23 2025-12-31 13F ASSURANT COM 04621X108 363 100 38.02 87 55.36 0.0002
2025-11-06 2025-09-30 13F ASSURANT COM 04621X108 263 165 168.37 57 194.74 0.0001
2025-08-04 2025-06-30 13F ASSURANT COM 04621X108 98 -63 -39.13 19 -42.42 0.0000
2025-05-06 2025-03-31 13F ASSURANT COM 04621X108 161 122 312.82 34 312.50 0.0001
2025-02-06 2024-12-31 13F ASSURANT COM 04621X108 39 -12 -23.53 8 -20.00 0.0000
2024-11-01 2024-09-30 13F ASSURANT COM 04621X108 51 -10 -16.39 10 0.00 0.0000
2024-08-13 2024-06-30 13F ASSURANT COM 04621X108 61 49 408.33 10 400.00 0.0000
2024-05-07 2024-03-31 13F ASSURANT COM 04621X108 12 -247 -95.37 2 -95.35 0.0000
2024-02-09 2023-12-31 13F ASSURANT COM 04621X108 259 259 44 0.0002
2022-02-14 2021-12-31 13F ASSURANT INC COM COM 04621X108 0 -22,526 -100.00 0 -100.00
2021-11-12 2021-09-30 13F ASSURANT INC COM COM 04621X108 22,526 22,526 3,553 0.0159
2021-05-14 2021-03-31 13F ASSURANT INC COM COM 04621X108 0 -24 -100.00 0 -100.00
2021-02-10 2020-12-31 13F ASSURANT INC COM COM 04621X108 24 -176 -88.00 3 -87.50 0.0000
2020-11-13 2020-09-30 13F ASSURANT INC COM COM 04621X108 200 200 24 0.0002
2020-05-12 2020-03-31 13F ASSURANT INC COM COM 04621X108 0 -8 -100.00 0 -100.00
2020-02-11 2019-12-31 13F ASSURANT INC COM COM 04621X108 8 -4,148 -99.81 1 -99.81 0.0000
2019-11-13 2019-09-30 13F ASSURANT INC COM COM 04621X108 4,156 252 6.45 523 26.02 0.0044
2019-08-14 2019-06-30 13F ASSURANT INC COM COM 04621X108 3,904 154 4.11 415 16.57 0.0034
2019-05-14 2019-03-31 13F ASSURANT INC COM COM 04621X108 3,750 3,750 356 0.0032
2018-05-16 2018-03-31 13F ASSURANT INC COM COM 04621X108 0 -22 -100.00 0 -100.00
2018-02-13 2017-12-31 13F ASSURANT INC COM COM 04621X108 22 20 1,000.00 2 0.0000
2017-11-08 2017-09-30 13F ASSURANT INC COM COM 04621X108 2 2 0 0.0000
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.