The Progressive Corporation
MX ˙ BMV ˙ US7433151039
SecurityMX:PGR / The Progressive Corporation
InstitutionMariner, LLC
Latest Disclosed Ownership364,521 shares
Latest Disclosed Value $ 72,269,769
Mariner, LLC reports 47.78% decrease in ownership of PGR / The Progressive Corporation

On May 13, 2026 - Mariner, LLC filed a 13F-HR form disclosing ownership of 364,521 shares of The Progressive Corporation (MX:PGR) valued at $72,269,769 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 698,019 shares of The Progressive Corporation. This represents a change in shares of -47.78% 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 PROGRESSIVE COM 743315103 364,521 -333,498 -47.78 72,270 -54.54 0.0844
2026-02-13 2025-12-31 13F PROGRESSIVE COM 743315103 698,019 53,383 8.28 158,971 -0.13 0.1893
2025-11-14 2025-09-30 13F PROGRESSIVE COM 743315103 644,636 47,248 7.91 159,183 -0.14 0.2057
2025-08-14 2025-06-30 13F PROGRESSIVE COM 743315103 597,388 39,230 7.03 159,402 0.92 0.2301
2025-05-15 2025-03-31 13F PROGRESSIVE COM 743315103 558,158 385,567 223.40 157,944 281.93 0.2628
2025-02-13 2024-12-31 13F PROGRESSIVE COM 743315103 172,591 7,111 4.30 41,354 -1.48 0.0694
2024-11-13 2024-09-30 13F PROGRESSIVE COM 743315103 165,480 157 0.09 41,977 22.24 0.0745
2024-08-13 2024-06-30 13F PROGRESSIVE COM 743315103 165,323 2,478 1.52 34,341 1.96 0.0666
2024-05-15 2024-03-31 13F PROGRESSIVE COM 743315103 162,845 15,647 10.63 33,679 43.65 0.0696
2024-02-14 2023-12-31 13F PROGRESSIVE COM 743315103 147,198 -1,471 -0.99 23,446 13.21 0.0556
2023-11-13 2023-09-30 13F PROGRESSIVE COM 743315103 148,669 7,388 5.23 20,710 10.74 0.0555
2023-08-11 2023-06-30 13F PROGRESSIVE COM 743315103 141,281 14,104 11.09 18,701 103,794.44 0.0500
2023-05-15 2023-03-31 13F PROGRESSIVE COM 743315103 127,177 661 0.52 18 -99.89 0.0529
2023-02-14 2022-12-31 13F PROGRESSIVE COM 743315103 126,516 2,868 2.32 16,411 14.20 0.0527
2022-11-10 2022-09-30 13F PROGRESSIVE COM 743315103 123,648 6,161 5.24 14,370 5.20 0.0574
2022-08-15 2022-06-30 13F PROGRESSIVE COM 743315103 117,487 -23 -0.02 13,660 1.98 0.0561
2022-05-13 2022-03-31 13F PROGRESSIVE COM 743315103 117,510 9,121 8.42 13,395 20.39 0.0505
2022-02-14 2021-12-31 13F PROGRESSIVE COM 743315103 108,389 83,212 330.51 11,126 388.84 0.0471
2021-11-15 2021-09-30 13F PROGRESSIVE COM 743315103 25,177 7,257 40.50 2,276 29.32 0.0119
2021-08-24 2021-06-30 13F PROGRESSIVE COM 743315103 17,920 -1,191 -6.23 1,760 -3.67 0.0109
2021-05-07 2021-03-31 13F PROGRESSIVE COM 743315103 19,111 5,216 37.54 1,827 32.97 0.0127
2021-02-16 2020-12-31 13F PROGRESSIVE COM 743315103 13,895 13,895 -27.29 1,374 -24.79 0.0105
2019-11-13 2019-09-30 13F PROGRESSIVE CORP OHIO COM 743315103 0 -6,431 -100.00 0 -100.00
2019-08-14 2019-06-30 13F PROGRESSIVE CORP OHIO COM 743315103 6,431 1,086 20.32 514 33.51 0.0061
2019-05-15 2019-03-31 13F PROGRESSIVE CORP OHIO COM 743315103 5,345 2,027 61.09 385 92.50 0.0055
2019-02-13 2018-12-31 13F PROGRESSIVE CORP OHIO COM 743315103 3,318 -540 -14.00 200 -27.01 0.0036
2018-11-14 2018-09-30 13F PROGRESSIVE CORP OHIO COM 743315103 3,858 3,858 16.27 274 37.00 0.0070
2015-08-17 2015-06-30 13F PROGRESSIVE CORP OHIO COM 743315103 0 -73,263 -100.00 0 -100.00
2015-05-15 2015-03-31 13F PROGRESSIVE CORP OHIO COM 743315103 73,263 73,263 1,993 0.1695
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.