Assurant, Inc.
MX ˙ BMV ˙ US04621X1081
SecurityMX:AIZ / Assurant, Inc.
InstitutionCapital Fund Management S.a.
Latest Disclosed Ownership14,698 shares
Latest Disclosed Value $ 3,201,371
Capital Fund Management S.a. ownership in AIZ / Assurant, Inc.

On May 14, 2026 - Capital Fund Management S.a. filed a 13F-HR form disclosing ownership of 14,698 shares of Assurant, Inc. (MX:AIZ) valued at $3,201,371 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 32,824 shares of Assurant, Inc.. This represents a change in shares of -55.22% during the quarter.

Capital Fund Management S.a. has a history of taking positions in derivatives of the underlying security (AIZ) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:AIZ / Assurant, Inc. Historical Put/Call Ratio
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)
2026-05-14 2026-03-31 13F ASSURANT INC COM ASSURANT INC COM 04621X108 14,698 -18,126 -55.22 3,201 -59.51 0.0145
2026-02-17 2025-12-31 13F ASSURANT INC COM ASSURANT INC COM 04621X108 32,824 -29,275 -47.14 7,906 -41.23 0.0220
2025-11-13 2025-09-30 13F ASSURANT COM 04621X108 62,099 18,603 42.77 13,451 56.58 0.0352
2025-08-13 2025-06-30 13F ASSURANT COM 04621X108 43,496 43,496 8,590 0.0237
2025-02-13 2024-12-31 13F ASSURANT COM 04621X108 0 -11,161 -100.00 0 -100.00
2024-11-13 2024-09-30 13F ASSURANT COM 04621X108 11,161 11,161 2,219 0.0061
2024-08-13 2024-06-30 13F ASSURANT COM 04621X108 0 -20,761 -100.00 0 -100.00
2024-05-15 2024-03-31 13F ASSURANT COM 04621X108 20,761 -13,424 -39.27 3,908 -32.14 0.0113
2024-02-14 2023-12-31 13F ASSURANT COM 04621X108 34,185 5,028 17.24 5,760 37.58 0.0155
2023-11-14 2023-09-30 13F ASSURANT COM 04621X108 29,157 -15,969 -35.39 4,186 -26.21 0.0145
2023-08-14 2023-06-30 13F ASSURANT COM 04621X108 45,126 45,126 5,673 0.0230
2020-08-13 2020-06-30 13F Assurant COM 04621X108 0 -5,383 -100.00 0 -100.00
2020-05-13 2020-03-31 13F Assurant COM 04621X108 5,383 5,383 560 0.0087
2019-11-13 2019-09-30 13F Assurant COM 04621X108 0 -8,300 -100.00 0 -100.00
2019-08-12 2019-06-30 13F Assurant COM 04621X108 8,300 4,800 137.14 883 165.96 0.0080
2019-05-13 2019-03-31 13F/A-1 Assurant COM 04621X108 3,500 3,500 332 0.0030
2018-08-14 2018-06-30 13F Assurant COM 04621X108 0 -46,400 -100.00 0 -100.00
2018-05-15 2018-03-31 13F Assurant COM 04621X108 46,400 46,400 4,241 0.0255
2018-02-09 2017-12-31 13F Assurant COM 04621X108 0 -28,900 -100.00 0 -100.00
2017-11-13 2017-09-30 13F Assurant COM 04621X108 28,900 23,400 425.45 2,761 384.39 0.0198
2017-08-10 2017-06-30 13F Assurant COM 04621X108 5,500 -2,839 -34.04 570 -28.57 0.0046
2017-05-03 2017-03-31 13F Assurant COM 04621X108 8,339 -441 -5.02 798 -2.09 0.0067
2017-02-08 2016-12-31 13F Assurant COM 04621X108 8,780 -2,260 -20.47 815 -19.94 0.0070
2016-10-31 2016-09-30 13F Assurant COM 04621X108 11,040 4,147 60.16 1,018 71.09 0.0093
2016-07-27 2016-06-30 13F Assurant COM 04621X108 6,893 -23,807 -77.55 595 -74.88 0.0056
2016-05-02 2016-03-31 13F Assurant COM 04621X108 30,700 30,700 0.00 2,369 0.0230
2016-01-28 2015-12-31 13F Assurant COM 04621X108 0 0 0 0.0000
2015-10-27 2015-09-30 13F Assurant COM 04621X108 0 -5,200 -100.00 0 -100.00
2015-07-28 2015-06-30 13F Assurant COM 04621X108 5,200 5,200 0.00 348 0.0044
2014-10-31 2014-09-30 13F Assurant COM 04621X108 0 -17,131 -100.00 0 -100.00
2014-08-01 2014-06-30 13F Assurant COM 04621X108 17,131 -15,818 -48.01 1,123 -47.52 0.0119
2014-05-14 2014-03-31 13F Assurant COM 04621X108 32,949 32,949 2,140 0.0262
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2020-05-13 2020-03-31 13F Assurant COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-13 2019-12-31 13F Assurant COM Call 3,300 433 n/a n/a n/a
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.