Assurant, Inc.
MX ˙ BMV ˙ US04621X1081
SecurityMX:AIZ / Assurant, Inc.
InstitutionShay Capital LLC
Latest Disclosed Ownership62,000 shares
Latest Disclosed Value $ 13,504,220
Shay Capital LLC ownership in AIZ / Assurant, Inc.

On May 15, 2026 - Shay Capital LLC filed a 13F-HR form disclosing ownership of 62,000 shares of Assurant, Inc. (MX:AIZ) valued at $13,504,220 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 34,800 shares of Assurant, Inc.. This represents a change in shares of 78.16% during the quarter.

Shay Capital LLC 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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)
2026-05-15 2026-03-31 13F ASSURANT COM 04621X108 62,000 27,200 78.16 13,504 61.13 1.1276
2026-02-17 2025-12-31 13F ASSURANT COM 04621X108 34,800 6,800 24.29 8,382 38.21 0.8653
2025-11-14 2025-09-30 13F ASSURANT COM 04621X108 28,000 6,000 27.27 6,065 39.59 0.5258
2025-08-14 2025-06-30 13F ASSURANT COM 04621X108 22,000 2,000 10.00 4,345 3.55 0.4974
2025-05-15 2025-03-31 13F ASSURANT COM 04621X108 20,000 8,250 70.21 4,195 67.47 0.6102
2025-02-14 2024-12-31 13F ASSURANT COM 04621X108 11,750 -250 -2.08 2,505 4.99 0.3799
2024-11-14 2024-09-30 13F ASSURANT COM 04621X108 12,000 -10,000 -45.45 2,386 -34.76 0.3371
2024-08-14 2024-06-30 13F ASSURANT COM 04621X108 22,000 10,500 91.30 3,658 68.99 0.5048
2024-05-15 2024-03-31 13F ASSURANT COM 04621X108 11,500 -3,500 -23.33 2,165 -14.36 0.3370
2024-02-14 2023-12-31 13F ASSURANT COM 04621X108 15,000 -4,500 -23.08 2,527 -9.72 0.5052
2023-11-14 2023-09-30 13F ASSURANT COM 04621X108 19,500 -23,500 -54.65 2,800 -48.21 0.3940
2023-08-14 2023-06-30 13F ASSURANT COM 04621X108 43,000 -333 -0.77 5,406 3.90 0.7553
2023-05-15 2023-03-31 13F ASSURANT COM 04621X108 43,333 30,333 233.33 5,203 220.12 1.0212
2023-02-14 2022-12-31 13F ASSURANT COM 04621X108 13,000 -2,000 -13.33 1,626 -25.42 0.5027
2022-11-14 2022-09-30 13F ASSURANT COM 04621X108 15,000 0 0.00 2,179 -15.97 0.4704
2022-08-15 2022-06-30 13F ASSURANT COM 04621X108 15,000 8,000 114.29 2,593 103.69 0.5209
2022-05-16 2022-03-31 13F ASSURANT COM 04621X108 7,000 -3,000 -30.00 1,273 -18.35 0.1633
2022-02-14 2021-12-31 13F ASSURANT COM 04621X108 10,000 0 0.00 1,559 -1.20 0.2577
2021-11-15 2021-09-30 13F ASSURANT COM 04621X108 10,000 5,000 100.00 1,578 102.05 0.2036
2021-08-13 2021-06-30 13F ASSURANT COM 04621X108 5,000 -17,000 -77.27 781 -74.96 0.0896
2021-08-13 2021-03-31 13F ASSURANT COM 04621X108 22,000 14,000 175.00 3,119 186.15 0.3170
2021-08-13 2020-12-31 13F ASSURANT COM 04621X108 8,000 8,000 1,090 0.2378
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
(%)
2023-08-14 2023-06-30 13F ASSURANT COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F ASSURANT COM Call 1,000 120 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.