MGIC Investment Corporation
MX ˙ BMV ˙ US5528481030
SecurityMX:MTG / MGIC Investment Corporation
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership92,353 shares
Latest Disclosed Value $ 2,424
Natixis Advisors, L.p. reports 42.17% increase in ownership of MTG / MGIC Investment Corporation

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 92,353 shares of MGIC Investment Corporation (MX:MTG) valued at $2,424 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 64,960 shares of MGIC Investment Corporation. This represents a change in shares of 42.17% 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)
2026-05-13 2026-03-31 13F MGIC INVT CORP WIS COM 552848103 92,353 27,393 42.17 2 100.00 0.0034
2026-02-10 2025-12-31 13F MGIC INVT CORP WIS COM 552848103 64,960 3,865 6.33 2 0.00 0.0027
2025-11-13 2025-09-30 13F MGIC INVT CORP WIS COM 552848103 61,095 -41,882 -40.67 2 -50.00 0.0025
2025-08-13 2025-06-30 13F MGIC INVT CORP WIS COM 552848103 102,977 -53,609 -34.24 3 -33.33 0.0045
2025-05-08 2025-03-31 13F MGIC INVT CORP WIS COM 552848103 156,586 -7,295 -4.45 4 0.00 0.0072
2025-02-10 2024-12-31 13F MGIC INVT CORP WIS COM 552848103 163,881 11,477 7.53 4 0.00 0.0073
2024-11-06 2024-09-30 13F MGIC INVT CORP WIS COM 552848103 152,404 42,088 38.15 4 50.00 0.0076
2024-08-01 2024-06-30 13F MGIC INVT CORP WIS COM 552848103 110,316 14,828 15.53 2 0.00 0.0052
2024-04-25 2024-03-31 13F MGIC INVT CORP WIS COM 552848103 95,488 2,368 2.54 2 100.00 0.0049
2024-02-06 2023-12-31 13F MGIC INVT CORP WIS COM 552848103 93,120 14,743 18.81 2 0.00 0.0047
2023-11-13 2023-09-30 13F MGIC INVT CORP WIS COM 552848103 78,377 2,665 3.52 1 0.00 0.0040
2023-08-15 2023-06-30 13F MGIC INVT CORP WIS COM 552848103 75,712 40,177 113.06 1 0.0037
2023-05-11 2023-03-31 13F MGIC INVT CORP WIS COM 552848103 35,535 179 0.51 0 0.0016
2023-01-27 2022-12-31 13F MGIC INVT COM 552848103 35,356 2,195 6.62 0 -100.00 0.0017
2022-11-14 2022-09-30 13F MGIC INVT COM 552848103 33,161 2,684 8.81 425 10.68 0.0018
2022-08-12 2022-06-30 13F MGIC INVT COM 552848103 30,477 5,273 20.92 384 12.28 0.0017
2022-05-12 2022-03-31 13F MGIC INVT COM 552848103 25,204 7,472 42.14 342 33.59 0.0013
2022-02-08 2021-12-31 13F MGIC INVT COM 552848103 17,732 805 4.76 256 1.19 0.0010
2021-11-15 2021-09-30 13F MGIC INVT COM 552848103 16,927 986 6.19 253 16.59 0.0010
2021-08-12 2021-06-30 13F MGIC INVT COM 552848103 15,941 15,941 217 0.0010
2021-05-04 2021-03-31 13F MGIC INVT COM 552848103 0 -292,905 -100.00 0 -100.00
2021-02-12 2020-12-31 13F MGIC INVT COM 552848103 292,905 7,499 2.63 3,676 45.41 0.0212
2020-11-12 2020-09-30 13F MGIC INVT COM 552848103 285,406 -108,765 -27.59 2,528 -21.69 0.0159
2020-08-11 2020-06-30 13F MGIC INVT COM 552848103 394,171 -118,618 -23.13 3,228 -0.86 0.0214
2020-04-27 2020-03-31 13F MGIC INVT COM 552848103 512,789 -18,440 -3.47 3,256 -56.75 0.0265
2020-02-10 2019-12-31 13F MGIC INVT COM 552848103 531,229 77,403 17.06 7,528 31.86 0.0531
2019-11-12 2019-09-30 13F MGIC INVT CL A 552848103 453,826 40,822 9.88 5,709 5.20 0.0453
2019-08-12 2019-06-30 13F MGIC INVT COM 552848103 413,004 8,278 2.05 5,427 1.65 0.0443
2019-05-15 2019-03-31 13F/A-1 MGIC INVT COM 552848103 404,726 28,006 7.43 5,339 35.54 0.0467
2019-05-15 2019-03-31 13F MGIC INVT COM 552848103 404,726 28,006 5,339
2019-02-13 2018-12-31 13F/A-1 MGIC INVT COM 552848103 376,720 -99,039 -20.82 3,939 -37.79 0.0389
2019-02-13 2018-12-31 13F MGIC INVT COM 552848103 376,720 -99,039 3,939
2018-11-13 2018-09-30 13F MGIC INVT COM 552848103 475,759 -13,024 -2.66 6,332 20.86 0.0557
2018-08-14 2018-06-30 13F/A-1 MGIC INVT COM 552848103 488,783 199,207 68.79 5,239 39.15 0.0500
2018-08-14 2018-06-30 13F MGIC INVT COM 552848103 488,783 5,239
2018-05-10 2018-03-31 13F MGIC INVT COM 552848103 289,576 19,746 7.32 3,765 -1.08 0.0372
2018-02-14 2017-12-31 13F MGIC INVT COM 552848103 269,830 90,860 50.77 3,806 69.76 0.0388
2017-11-14 2017-09-30 13F MGIC INVT CORP WIS COM 552848103 178,970 26,668 17.51 2,242 31.50 0.0237
2017-07-27 2017-06-30 13F MGIC INVT COM 552848103 152,302 152,302 1,705 0.0185
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.