Safety Insurance Group, Inc.
DE ˙ DB ˙ US78648T1007
58,50 € ↑0,50 (0,86%)
2026-06-05
DEL PRIS
SecurityDE:SFN / Safety Insurance Group, Inc.
InstitutionWinton Capital Group Ltd
Latest Disclosed Ownership3,325 shares
Latest Disclosed Value $ 241,528
Winton Capital Group Ltd reports 74.07% decrease in ownership of SFN / Safety Insurance Group, Inc.

On May 12, 2026 - Winton Capital Group Ltd filed a 13F-HR form disclosing ownership of 3,325 shares of Safety Insurance Group, Inc. (DE:SFN) valued at $206,150 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 12,822 shares of Safety Insurance Group, Inc.. This represents a change in shares of -74.07% during the quarter. The current value of the position is $194,512 USD.

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 SAFETY INS GROUP COM 78648T100 3,325 -9,497 -74.07 242 -75.85 0.0085
2026-02-11 2025-12-31 13F SAFETY INS GROUP COM 78648T100 12,822 -608 -4.53 999 5.16 0.0345
2025-11-13 2025-09-30 13F SAFETY INS GROUP COM 78648T100 13,430 -952 -6.62 949 -16.83 0.0355
2025-08-14 2025-06-30 13F SAFETY INS GROUP COM 78648T100 14,382 494 3.56 1,142 4.20 0.0583
2025-05-15 2025-03-31 13F SAFETY INS GROUP COM 78648T100 13,888 664 5.02 1,095 0.55 0.0667
2025-02-12 2024-12-31 13F SAFETY INS GROUP COM 78648T100 13,224 293 2.27 1,090 3.03 0.0724
2024-11-12 2024-09-30 13F SAFETY INS GROUP COM 78648T100 12,931 1,160 9.85 1,057 19.71 0.0741
2024-08-09 2024-06-30 13F SAFETY INS GROUP COM 78648T100 11,771 537 4.78 883 -4.33 0.0597
2024-05-14 2024-03-31 13F SAFETY INS GROUP COM 78648T100 11,234 6,261 125.90 923 144.83 0.0652
2024-02-12 2023-12-31 13F SAFETY INS GROUP COM 78648T100 4,973 7 0.14 378 11.54 0.0275
2023-11-13 2023-09-30 13F SAFETY INS GROUP COM 78648T100 4,966 1,840 58.86 339 50.89 0.0279
2023-08-14 2023-06-30 13F SAFETY INS GROUP COM 78648T100 3,126 3,126 224 0.0188
2023-05-12 2023-03-31 13F SAFETY INS GROUP COM 78648T100 0 -3,123 -100.00 0 -100.00
2023-02-14 2022-12-31 13F SAFETY INS GROUP COM 78648T100 3,123 -6,130 -66.25 263 -65.17 0.0173
2022-11-10 2022-09-30 13F SAFETY INS GROUP COM 78648T100 9,253 -6,411 -40.93 755 -50.36 0.0493
2022-08-10 2022-06-30 13F SAFETY INS GROUP COM 78648T100 15,664 -5,718 -26.74 1,521 -21.72 0.0807
2022-05-11 2022-03-31 13F SAFETY INS GROUP COM 78648T100 21,382 130 0.61 1,943 7.53 0.1019
2022-02-10 2021-12-31 13F SAFETY INS GROUP COM 78648T100 21,252 9,094 74.80 1,807 87.45 0.1095
2021-10-28 2021-09-30 13F SAFETY INS GROUP COM 78648T100 12,158 2,477 25.59 964 27.18 0.0540
2021-08-10 2021-06-30 13F SAFETY INS GROUP COM 78648T100 9,681 2,076 27.30 758 18.25 0.0407
2021-07-21 2021-03-31 13F SAFETY INS GROUP COM 78648T100 7,605 784 11.49 641 20.72 0.0366
2021-02-12 2020-12-31 13F SAFETY INS GROUP COM 78648T100 6,821 -10,529 -60.69 531 -55.71 0.0383
2020-10-30 2020-09-30 13F SAFETY INS GROUP COM 78648T100 17,350 -48,455 -73.63 1,199 -76.11 0.0390
2020-08-05 2020-06-30 13F SAFETY INS GROUP COM 78648T100 65,805 49,766 310.28 5,018 270.61 0.1295
2020-05-11 2020-03-31 13F SAFETY INS GROUP COM 78648T100 16,039 -8,916 -35.73 1,354 -41.36 0.0357
2020-02-13 2019-12-31 13F SAFETY INS GROUP COM 78648T100 24,955 2,186 9.60 2,309 0.09 0.0324
2019-11-08 2019-09-30 13F SAFETY INS GROUP COM 78648T100 22,769 4,464 24.39 2,307 32.51 0.0273
2019-07-08 2019-06-30 13F SAFETY INS GROUP COM 78648T100 18,305 4,708 34.63 1,741 46.92 0.0338
2019-05-13 2019-03-31 13F SAFETY INS GROUP COM 78648T100 13,597 6,602 94.38 1,185 107.17 0.0238
2019-02-05 2018-12-31 13F SAFETY INS GROUP COM 78648T100 6,995 134 1.95 572 -6.99 0.0123
2018-11-02 2018-09-30 13F SAFETY INS GROUP COM 78648T100 6,861 2,734 66.25 615 74.72 0.0129
2018-08-20 2018-06-30 13F SAFETY INS GROUP COM 78648T100 4,127 -2,782 -40.27 352 -33.71 0.0090
2018-05-21 2018-03-31 13F SAFETY INS GROUP COM 78648T100 6,909 6,909 531 0.0150
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.