The Progressive Corporation
MX ˙ BMV ˙ US7433151039
SecurityMX:PGR / The Progressive Corporation
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership215,221 shares
Latest Disclosed Value $ 42,665,412
Marshall Wace, Llp reports 51.54% decrease in ownership of PGR / The Progressive Corporation

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 215,221 shares of The Progressive Corporation (MX:PGR) valued at $42,665,412 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 444,093 shares of The Progressive Corporation. This represents a change in shares of -51.54% 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)
2026-05-14 2026-03-31 13F PROGRESSIVE COMMON STOCK 743315103 215,221 -228,872 -51.54 42,665 -57.81 0.0201
2026-02-13 2025-12-31 13F PROGRESSIVE COMMON STOCK 743315103 444,093 400,811 926.05 101,129 846.18 0.0921
2025-11-13 2025-09-30 13F PROGRESSIVE COMMON STOCK 743315103 43,282 -248,834 -85.18 10,688 -86.29 0.0108
2025-08-13 2025-06-30 13F PROGRESSIVE COMMON STOCK 743315103 292,116 127,845 77.83 77,954 67.68 0.0878
2025-05-15 2025-03-31 13F PROGRESSIVE COMMON STOCK 743315103 164,271 -1,371,906 -89.31 46,490 -87.37 0.0590
2025-02-13 2024-12-31 13F PROGRESSIVE COMMON STOCK 743315103 1,536,177 -118,981 -7.19 368,083 -12.36 0.4425
2024-11-14 2024-09-30 13F PROGRESSIVE COMMON STOCK 743315103 1,655,158 781,522 89.46 420,013 131.46 0.5116
2024-08-14 2024-06-30 13F PROGRESSIVE COMMON STOCK 743315103 873,636 503,307 135.91 181,463 136.92 0.2423
2024-05-15 2024-03-31 13F PROGRESSIVE COMMON STOCK 743315103 370,329 364,429 6,176.76 76,591 8,056.66 0.1166
2024-02-14 2023-12-31 13F PROGRESSIVE COMMON STOCK 743315103 5,900 5,900 940 0.0016
2023-11-14 2023-09-30 13F PROGRESSIVE COMMON STOCK 743315103 0 -238,701 -100.00 0 -100.00
2023-08-14 2023-06-30 13F PROGRESSIVE COMMON STOCK 743315103 238,701 -492,194 -67.34 31,597 -69.78 0.0617
2023-05-15 2023-03-31 13F PROGRESSIVE COMMON STOCK 743315103 730,895 -127,833 -14.89 104,562 -6.13 0.2222
2023-02-14 2022-12-31 13F PROGRESSIVE COMMON STOCK 743315103 858,728 287,027 50.21 111,386 67.65 0.2505
2022-11-14 2022-09-30 13F PROGRESSIVE COMMON STOCK 743315103 571,701 571,701 66,438 0.1456
2022-05-16 2022-03-31 13F PROGRESSIVE COMMON STOCK 743315103 0 -74,763 -100.00 0 -100.00
2022-02-14 2021-12-31 13F PROGRESSIVE COMMON STOCK 743315103 74,763 74,763 7,674 0.0142
2021-08-13 2021-06-30 13F PROGRESSIVE COMMON STOCK 743315103 0 -173,799 -100.00 0 -100.00
2021-05-17 2021-03-31 13F PROGRESSIVE COMMON STOCK 743315103 173,799 164,159 1,702.89 16,618 1,643.76 0.0762
2021-02-16 2020-12-31 13F PROGRESSIVE COMMON STOCK 743315103 9,640 9,640 -94.45 953 -94.27 0.0052
2020-11-16 2020-09-30 13F PROGRESSIVE COMMON STOCK 743315103 0 -767,918 -100.00 0 -100.00
2020-08-13 2020-06-30 13F PROGRESSIVE COMMON STOCK 743315103 767,918 482,122 168.69 61,517 191.51 0.4310
2020-05-15 2020-03-31 13F PROGRESSIVE COMMON STOCK 743315103 285,796 -53,921 -15.87 21,103 -14.19 0.2108
2020-02-14 2019-12-31 13F PROGRESSIVE COMMON STOCK 743315103 339,717 253,095 292.18 24,592 267.54 0.1690
2019-11-14 2019-09-30 13F PROGRESSIVE COMMON STOCK 743315103 86,622 -96,314 -52.65 6,691 -54.24 0.0526
2019-08-14 2019-06-30 13F PROGRESSIVE COMMON STOCK 743315103 182,936 -64,621 -26.10 14,622 -18.07 0.1203
2019-05-29 2019-03-31 13F/A-1 PROGRESSIVE COMMON STOCK 743315103 247,557 106,867 75.96 17,846 110.27 0.1677
2019-05-14 2019-03-31 13F PROGRESSIVE COMMON STOCK 743315103 247,557 106,867 17,846
2019-02-14 2018-12-31 13F PROGRESSIVE COMMON STOCK 743315103 140,690 -158,479 -52.97 8,487 -60.07 0.0866
2018-12-06 2018-09-30 13F/A-1 PROGRESSIVE COMMON STOCK 743315103 299,169 -172,798 -36.61 21,253 -23.87 0.1808
2018-11-14 2018-09-30 13F PROGRESSIVE COMMON STOCK 743315103 299,169 -172,798 21,253
2018-08-14 2018-06-30 13F PROGRESSIVE COMMON STOCK 743315103 471,967 471,967 57.76 27,917 31.36 0.4177
2018-05-15 2018-03-31 13F PROGRESSIVE COMMON STOCK 743315103 0 -4,536 -100.00 0 -100.00
2018-03-29 2017-12-31 13F/A-1 PROGRESSIVE COMMON STOCK 743315103 4,536 4,536 255 0.0107
2018-02-14 2017-12-31 13F PROGRESSIVE COMMON STOCK 743315103 4,536 4,536 255
2017-05-12 2017-03-31 13F PROGRESSIVE COMMON STOCK 743315103 0 -918,393 -100.00 0 -100.00
2017-02-10 2016-12-31 13F PROGRESSIVE COMMON STOCK 743315103 918,393 774,911 540.08 32,603 621.46 0.2144
2016-11-10 2016-09-30 13F PROGRESSIVE COMMON STOCK 743315103 143,482 56,094 64.19 4,519 54.39 0.0321
2016-08-12 2016-06-30 13F PROGRESSIVE COMMON STOCK 743315103 87,388 87,388 -39.09 2,927 -35.23 0.0246
2016-02-10 2015-12-31 13F PROGRESSIVE COMMON STOCK 743315103 0 0 0 0.0000
2015-11-12 2015-09-30 13F PROGRESSIVE COMMON STOCK 743315103 0 -198,635 -100.00 0 -100.00
2015-08-14 2015-06-30 13F PROGRESSIVE COMMON STOCK 743315103 198,635 198,635 0.00 5,528 0.0721
2015-05-11 2015-03-31 13F PROGRESSIVE COMMON STOCK 743315103 0 -203,804 -100.00 0 -100.00
2015-02-17 2014-12-31 13F PROGRESSIVE COMMON STOCK 743315103 203,804 -90,178 -30.67 5,501 -25.98 0.0726
2014-11-13 2014-09-30 13F PROGRESSIVE COMMON STOCK 743315103 293,982 276,702 1,601.28 7,432 1,596.80 0.1072
2014-08-14 2014-06-30 13F PROGRESSIVE COMMON STOCK 743315103 17,280 -594,410 -97.18 438 -97.04 0.0064
2014-05-14 2014-03-31 13F PROGRESSIVE COMMON STOCK 743315103 611,690 611,690 14,815 0.2694
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.