MGIC Investment Corporation
MX ˙ BMV ˙ US5528481030
SecurityMX:MTG / MGIC Investment Corporation
InstitutionWinton Capital Group Ltd
Latest Disclosed Ownership45,402 shares
Latest Disclosed Value $ 1,191,803
Winton Capital Group Ltd reports 122.18% increase in ownership of MTG / MGIC Investment Corporation

On May 12, 2026 - Winton Capital Group Ltd filed a 13F-HR form disclosing ownership of 45,402 shares of MGIC Investment Corporation (MX:MTG) valued at $1,191,803 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 20,435 shares of MGIC Investment Corporation. This represents a change in shares of 122.18% 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)
2026-05-12 2026-03-31 13F MGIC INVT CORP WIS COM 552848103 45,402 24,967 122.18 1,192 99.50 0.0418
2026-02-11 2025-12-31 13F MGIC INVT CORP WIS COM 552848103 20,435 -374 -1.80 597 1.19 0.0206
2025-11-13 2025-09-30 13F MGIC INVT CORP WIS COM 552848103 20,809 -223,334 -91.48 590 -91.32 0.0221
2025-08-14 2025-06-30 13F MGIC INVT CORP WIS COM 552848103 244,143 244,143 6,797 0.3473
2025-05-15 2025-03-31 13F MGIC INVT CORP WIS COM 552848103 0 -24,440 -100.00 0 -100.00
2025-02-12 2024-12-31 13F MGIC INVT CORP WIS COM 552848103 24,440 -5,780 -19.13 579 -25.10 0.0385
2024-11-12 2024-09-30 13F MGIC INVT CORP WIS COM 552848103 30,220 -490,781 -94.20 774 -93.11 0.0542
2024-08-09 2024-06-30 13F MGIC INVT CORP WIS COM 552848103 521,001 424,580 440.34 11,228 420.97 0.7583
2024-05-14 2024-03-31 13F MGIC INVT CORP WIS COM 552848103 96,421 -31,217 -24.46 2,156 -12.47 0.1523
2024-02-12 2023-12-31 13F MGIC INVT CORP WIS COM 552848103 127,638 -56,257 -30.59 2,462 -19.78 0.1792
2023-11-13 2023-09-30 13F MGIC INVT CORP WIS COM 552848103 183,895 -358,716 -66.11 3,069 -64.18 0.2529
2023-08-14 2023-06-30 13F MGIC INVT CORP WIS COM 552848103 542,611 198,693 57.77 8,568 85.63 0.7170
2023-05-12 2023-03-31 13F MGIC INVT CORP WIS COM 552848103 343,918 110,435 47.30 4,615 52.06 0.2814
2023-02-14 2022-12-31 13F MGIC INVT CORP WIS COM 552848103 233,483 -63,304 -21.33 3,035 -20.24 0.1999
2022-11-10 2022-09-30 13F MGIC INVT CORP WIS COM 552848103 296,787 91,688 44.70 3,805 47.25 0.2483
2022-08-10 2022-06-30 13F MGIC INVT CORP WIS COM 552848103 205,099 -20,984 -9.28 2,584 -15.64 0.1370
2022-05-11 2022-03-31 13F MGIC INVT CORP WIS COM 552848103 226,083 32,596 16.85 3,063 9.78 0.1607
2022-02-10 2021-12-31 13F MGIC INVT CORP WIS COM 552848103 193,487 67,696 53.82 2,790 48.25 0.1690
2021-10-28 2021-09-30 13F MGIC INVT CORP WIS COM 552848103 125,791 -28,988 -18.73 1,882 -10.59 0.1054
2021-08-10 2021-06-30 13F MGIC INVT CORP WIS COM 552848103 154,779 6,024 4.05 2,105 2.18 0.1130
2021-07-21 2021-03-31 13F MGIC INVT CORP WIS COM 552848103 148,755 9,004 6.44 2,060 17.45 0.1175
2021-02-12 2020-12-31 13F MGIC INVT CORP WIS COM 552848103 139,751 -346,467 -71.26 1,754 -59.29 0.1266
2020-10-30 2020-09-30 13F MGIC INVT CORP WIS COM 552848103 486,218 284,651 141.22 4,308 160.93 0.1400
2020-08-05 2020-06-30 13F MGIC INVT CORP WIS COM 552848103 201,567 -73,790 -26.80 1,651 -5.60 0.0426
2020-05-11 2020-03-31 13F MGIC INVT CORP WIS COM 552848103 275,357 199,021 260.72 1,749 61.65 0.0461
2020-02-13 2019-12-31 13F MGIC INVT CORP WIS COM 552848103 76,336 56,763 290.01 1,082 339.84 0.0152
2019-11-08 2019-09-30 13F MGIC INVT CORP WIS COM 552848103 19,573 -32,028 -62.07 246 -63.72 0.0029
2019-07-08 2019-06-30 13F MGIC INVT CORP WIS COM 552848103 51,601 51,601 678 0.0132
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.