Safety Insurance Group, Inc.
US ˙ NasdaqGS ˙ US78648T1007

SecuritySAFT / Safety Insurance Group, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership152,646 shares
Latest Disclosed Value $ 11,088,205
Northern Trust Corp reports 5.01% increase in ownership of SAFT / Safety Insurance Group, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 152,646 shares of Safety Insurance Group, Inc. (US:SAFT) valued at $11,088,205 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 145,361 shares of Safety Insurance Group, Inc.. This represents a change in shares of 5.01% during the quarter. The current value of the position is $10,409,694 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)
2026-05-14 2026-03-31 13F SAFETY INS GROUP COM 78648T100 152,646 7,285 5.01 11,088 -2.09 0.0003
2026-02-17 2025-12-31 13F SAFETY INS GROUP COM 78648T100 145,361 -10,356 -6.65 11,325 2.89 0.0014
2025-11-14 2025-09-30 13F SAFETY INS GROUP COM 78648T100 155,717 2,464 1.61 11,008 -9.53 0.0014
2025-08-13 2025-06-30 13F SAFETY INS GROUP COM 78648T100 153,253 -7,408 -4.61 12,167 -3.99 0.0017
2025-05-13 2025-03-31 13F SAFETY INS GROUP COM 78648T100 160,661 -5,562 -3.35 12,673 -7.48 0.0019
2025-02-14 2024-12-31 13F SAFETY INS GROUP COM 78648T100 166,223 10,768 6.93 13,697 7.73 0.0019
2024-11-13 2024-09-30 13F SAFETY INS GROUP COM 78648T100 155,455 140 0.09 12,713 9.10 0.0021
2024-08-14 2024-06-30 13F SAFETY INS GROUP COM 78648T100 155,315 -3,921 -2.46 11,653 -10.96 0.0020
2024-05-14 2024-03-31 13F SAFETY INS GROUP COM 78648T100 159,236 -2,705 -1.67 13,088 6.36 0.0023
2024-02-13 2023-12-31 13F SAFETY INS GROUP COM 78648T100 161,941 794 0.49 12,306 11.99 0.0022
2023-11-13 2023-09-30 13F SAFETY INS GROUP COM 78648T100 161,147 -27,408 -14.54 10,989 -18.75 0.0021
2023-08-11 2023-06-30 13F SAFETY INS GROUP COM 78648T100 188,555 10,494 5.89 13,523 1.91 0.0026
2023-05-15 2023-03-31 13F SAFETY INS GROUP COM 78648T100 178,061 -4,090 -2.25 13,269 -13.55 0.0026
2023-02-13 2022-12-31 13F SAFETY INS GROUP COM 78648T100 182,151 2,258 1.26 15,348 4.61 0.0032
2022-11-14 2022-09-30 13F SAFETY INS GROUP COM 78648T100 179,893 1,036 0.58 14,672 -15.52 0.0034
2022-08-12 2022-06-30 13F SAFETY INS GROUP COM 78648T100 178,857 -3,663 -2.01 17,367 4.73 0.0037
2022-05-13 2022-03-31 13F SAFETY INS GROUP COM 78648T100 182,520 -4,307 -2.31 16,582 4.39 0.0029
2022-02-08 2021-12-31 13F SAFETY INS GROUP COM 78648T100 186,827 -4,466 -2.33 15,885 4.78 0.0026
2021-11-15 2021-09-30 13F SAFETY INS GROUP COM 78648T100 191,293 -6,877 -3.47 15,160 -2.28 0.0027
2021-08-13 2021-06-30 13F SAFETY INS GROUP COM 78648T100 198,170 29,292 17.35 15,513 9.03 0.0027
2021-05-12 2021-03-31 13F SAFETY INS GROUP COM 78648T100 168,878 -6,967 -3.96 14,228 3.86 0.0026
2021-02-11 2020-12-31 13F SAFETY INS GROUP COM 78648T100 175,845 -6,172 -3.39 13,699 8.94 0.0027
2020-11-16 2020-09-30 13F SAFETY INS GROUP COM 78648T100 182,017 -12,127 -6.25 12,575 -15.06 0.0028
2020-08-14 2020-06-30 13F SAFETY INS GROUP COM 78648T100 194,144 -4,958 -2.49 14,805 -11.93 0.0035
2020-05-14 2020-03-31 13F SAFETY INS GROUP COM 78648T100 199,102 -1,160 -0.58 16,810 -9.28 0.0048
2020-02-14 2019-12-31 13F SAFETY INS GROUP COM 78648T100 200,262 -4,352 -2.13 18,530 -10.63 0.0041
2019-11-13 2019-09-30 13F SAFETY INS GROUP COM 78648T100 204,614 5,264 2.64 20,733 9.33 0.0050
2019-08-13 2019-06-30 13F SAFETY INS GROUP COM 78648T100 199,350 -348,647 -63.62 18,964 -60.29 0.0045
2019-05-13 2019-03-31 13F SAFETY INS GROUP COM 78648T100 547,997 1,561 0.29 47,753 6.82 0.0118
2019-02-12 2018-12-31 13F SAFETY INS GROUP COM 78648T100 546,436 -883 -0.16 44,704 -8.84 0.0125
2018-11-14 2018-09-30 13F SAFETY INS GROUP COM 78648T100 547,319 2,787 0.51 49,040 5.46 0.0120
2018-09-18 2018-06-30 13F/A-1 SAFETY INS GROUP COM 78648T100 544,532 3,169 0.59 46,503 11.78 0.0118
2018-08-14 2018-06-30 13F SAFETY INS GROUP COM 78648T100 545,502 4,139 46,586
2018-05-09 2018-03-31 13F SAFETY INS GROUP COM 78648T100 541,363 5,639 1.05 41,604 -3.41 0.0108
2018-02-14 2017-12-31 13F SAFETY INS GROUP COM 78648T100 535,724 -17,824 -3.22 43,073 1.98 0.0109
2017-11-13 2017-09-30 13F SAFETY INS GROUP COM 78648T100 553,548 -71 -0.01 42,235 11.70 0.0110
2017-08-11 2017-06-30 13F SAFETY INS GROUP COM 78648T100 553,619 8,981 1.65 37,812 -0.96 0.0106
2017-05-12 2017-03-31 13F SAFETY INS GROUP COM 78648T100 544,638 8,614 1.61 38,179 -3.36 0.0110
2017-02-13 2016-12-31 13F SAFETY INS GROUP COM 78648T100 536,024 -6,559 -1.21 39,505 8.32 0.0121
2016-11-09 2016-09-30 13F SAFETY INS GROUP COM 78648T100 542,583 -15,784 -2.83 36,472 6.07 0.0114
2016-08-12 2016-06-30 13F SAFETY INS GROUP COM 78648T100 558,367 58 0.01 34,384 7.93 0.0112
2016-08-19 2016-03-31 13F/A-1 SAFETY INS GROUP COM 78648T100 558,309 1,356 0.24 31,857 1.45 0.0106
2016-05-13 2016-03-31 13F SAFETY INS GROUP COM 78648T100 558,309 31,857
2016-02-12 2015-12-31 13F SAFETY INS GROUP COM 78648T100 556,953 9,843 1.80 31,401 5.99 0.0104
2015-11-12 2015-09-30 13F SAFETY INS GROUP COM 78648T100 547,110 547,110 0.00 29,625 0.0099
2015-08-13 2015-06-30 13F SAFETY INS GROUP COM 78648T100 0 -697,200 -100.00 0 -100.00
2015-05-14 2015-03-31 13F SAFETY INS GROUP COM 78648T100 697,200 20,698 3.06 41,657 -3.80 0.0125
2015-02-12 2014-12-31 13F SAFETY INS GROUP COM 78648T100 676,502 -5,951 -0.87 43,303 17.70 0.0131
2014-11-13 2014-09-30 13F SAFETY INS GROUP COM 78648T100 682,453 54,353 8.65 36,791 14.00 0.0116
2014-08-14 2014-06-30 13F SAFETY INS GROUP COM 78648T100 628,100 365,790 139.45 32,272 128.47 0.0101
2014-05-14 2014-03-31 13F SAFETY INS GROUP COM 78648T100 262,310 -8,466 -3.13 14,125 -7.34 0.0044
2014-02-21 2013-12-31 13F/A-1 SAFETY INS GROUP COM 78648T100 270,776 5,115 1.93 15,244 8.32 0.0049
2014-02-12 2013-12-31 13F SAFETY INS GROUP COM 78648T100 270,776 15,244
2013-11-13 2013-09-30 13F SAFETY INS GROUP COM 78648T100 265,661 8,560 3.33 14,073 12.85 0.0050
2013-08-09 2013-06-30 13F SAFETY INS GROUP COM 78648T100 257,101 257,101 12,471 0.0045
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.