Safety Insurance Group, Inc.
US ˙ NasdaqGS ˙ US78648T1007

SecuritySAFT / Safety Insurance Group, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership728,891 shares
Ownership 4.90%
Dimensional Fund Advisors Lp ownership in SAFT / Safety Insurance Group, Inc.

2025-04-15 - Dimensional Fund Advisors Lp has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 728,891 shares of Safety Insurance Group, Inc. (US:SAFT). This represents 4.9 percent ownership of the company. In their previous filing dated 2024-02-09 , Dimensional Fund Advisors Lp had reported owning 741,540 shares, indicating a decrease of -1.71 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date		Effective
Date		Form Prev
Shares		 Latest
Shares		 ΔShares
(Percent)		 Ownership
(Percent)		 ΔOwnership
(Percent)
2025-04-15 2025-04-15 13G/A 741,540 728,891 -1.71 4.90 -2.00
2024-02-09 2024-02-09 13G 697,119 741,540 6.37 5.00 6.38
2022-02-08 2022-02-08 13G/A 752,487 697,119 -7.36 4.70 -7.84
2021-02-12 2021-02-12 13G/A 985,268 752,487 -23.63 5.10 -20.31
2020-02-12 2020-02-12 13G/A 1,184,749 985,268 -16.84 6.40 -17.42
2019-02-08 2019-02-08 13G/A 1,267,883 1,184,749 -6.56 7.75 -6.96
2018-02-09 2018-02-09 13G/A 1,252,170 1,267,883 1.25 8.33 0.73
2017-02-09 2017-02-09 13G/A 1,240,187 1,252,170 0.97 8.27 0.61
2016-02-09 2016-02-09 13G/A 1,240,187 8.22
2015-02-05 2015-02-05 13G/A 1,294,195 8.62
2014-02-10 2014-02-10 13G/A 1,051,662 6.83
2013-02-11 2013-02-11 13G/A 1,009,700 6.59
2012-02-13 2012-02-13 13G/A 1,016,091 6.69

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-07 2026-03-31 13F SAFETY INS GROUP COM 78648T100 711,806 3,319 0.47 51,708 -6.33 0.0023
2026-02-12 2025-12-31 13F SAFETY INS GROUP COM 78648T100 708,487 -6,424 -0.90 55,199 9.23 0.0116
2025-11-12 2025-09-30 13F SAFETY INS GROUP COM 78648T100 714,911 114 0.02 50,537 -10.95 0.0108
2025-08-12 2025-06-30 13F SAFETY INS GROUP COM 78648T100 714,797 -14,094 -1.93 56,747 -1.30 0.0131
2025-05-13 2025-03-31 13F SAFETY INS GROUP COM 78648T100 728,891 -20,327 -2.71 57,495 -6.87 0.0143
2025-02-13 2024-12-31 13F SAFETY INS GROUP COM 78648T100 749,218 -6,124 -0.81 61,735 -0.06 0.0148
2024-11-07 2024-09-30 13F SAFETY INS GROUP COM 78648T100 755,342 -1,291 -0.17 61,772 8.81 0.0150
2024-08-09 2024-06-30 13F SAFETY INS GROUP COM 78648T100 756,633 11,146 1.50 56,770 -7.35 0.0148
2024-05-10 2024-03-31 13F SAFETY INS GROUP COM 78648T100 745,487 3,947 0.53 61,272 8.73 0.0166
2024-02-07 2023-12-31 13F SAFETY INS GROUP COM 78648T100 741,540 -832 -0.11 56,350 11.31 0.0165
2023-11-09 2023-09-30 13F SAFETY INS GROUP COM 78648T100 742,372 9,526 1.30 50,623 -3.69 0.0166
2023-08-09 2023-06-30 13F SAFETY INS GROUP COM 78648T100 732,846 17,819 2.49 52,560 -1.36 0.0168
2023-05-12 2023-03-31 13F SAFETY INS GROUP COM 78648T100 715,027 5,602 0.79 53,283 90,210.17 0.0179
2023-02-09 2022-12-31 13F SAFETY INS GROUP COM 78648T100 709,425 2,497 0.35 60 -99.90 0.0177
2022-11-10 2022-09-30 13F SAFETY INS GROUP COM 78648T100 706,928 -3,144 -0.44 57,658 -16.37 0.0221
2022-08-12 2022-06-30 13F SAFETY INS GROUP COM 78648T100 710,072 3,688 0.52 68,946 7.43 0.0247
2022-05-13 2022-03-31 13F SAFETY INS GROUP COM 78648T100 706,384 9,265 1.33 64,175 8.26 0.0198
2022-02-09 2021-12-31 13F SAFETY INS GROUP COM 78648T100 697,119 -9 -0.00 59,276 7.29 0.0179
2021-11-12 2021-09-30 13F SAFETY INS GROUP COM 78648T100 697,128 1,049 0.15 55,248 1.39 0.0178
2021-08-12 2021-06-30 13F SAFETY INS GROUP COM 78648T100 696,079 -21,735 -3.03 54,489 -9.97 0.0173
2021-05-14 2021-03-31 13F SAFETY INS GROUP COM 78648T100 717,814 -34,673 -4.61 60,520 3.24 0.0200
2021-03-08 2020-12-31 13F/A-2 SAFETY INS GROUP COM 78648T100 752,487 -36,332 -4.61 58,618 7.56 0.0212
2021-02-11 2020-12-31 13F SAFETY INS GROUP COM 78648T100 752,487 -36,332 58,618 21,169.7059
2020-11-12 2020-09-30 13F SAFETY INS GROUP COM 78648T100 788,819 -57,162 -6.76 54,500 -15.52 0.0231
2020-08-13 2020-06-30 13F SAFETY INS GROUP COM 78648T100 845,981 -52,685 -5.86 64,515 -14.97 0.0284
2020-05-14 2020-03-31 13F SAFETY INS GROUP COM 78648T100 898,666 -86,602 -8.79 75,873 -16.78 0.0395
2020-02-14 2019-12-31 13F SAFETY INS GROUP COM 78648T100 985,268 -72,714 -6.87 91,167 -14.96 0.0332
2019-11-12 2019-09-30 13F SAFETY INS GROUP COM 78648T100 1,057,982 -39,307 -3.58 107,207 2.70 0.0417
2019-08-13 2019-06-30 13F SAFETY INS GROUP COM 78648T100 1,097,289 -48,680 -4.25 104,384 4.53 0.0405
2019-08-12 2019-03-31 13F/A-2 SAFETY INS GROUP COM 78648T100 1,145,969 -38,780 -3.27 99,861 3.03 0.0398
2019-05-10 2019-03-31 13F SAFETY INS GROUP COM 78648T100 1,145,969 -38,780 99,861
2019-02-26 2018-12-31 13F/A-1 SAFETY INS GROUP COM 78648T100 1,184,749 -23,455 -1.94 96,925 -10.47 0.0439
2019-02-13 2018-12-31 13F SAFETY INS GROUP COM 78648T100 1,184,749 -23,455 96,925
2018-11-13 2018-09-30 13F SAFETY INS GROUP COM 78648T100 1,208,204 -37,335 -3.00 108,254 1.77 0.0412
2018-08-10 2018-06-30 13F SAFETY INS GROUP COM 78648T100 1,245,539 -23,154 -1.83 106,369 9.10 0.0424
2018-05-11 2018-03-31 13F SAFETY INS GROUP COM 78648T100 1,268,693 810 0.06 97,499 -4.35 0.0406
2018-02-12 2017-12-31 13F SAFETY INS GROUP COM 78648T100 1,267,883 -5,513 -0.43 101,938 4.92 0.0423
2017-11-13 2017-09-30 13F SAFETY INS GROUP COM 78648T100 1,273,396 -4,428 -0.35 97,160 11.32 0.0425
2017-08-11 2017-06-30 13F SAFETY INS GROUP COM 78648T100 1,277,824 4,880 0.38 87,276 -2.19 0.0403
2017-05-12 2017-03-31 13F SAFETY INS GROUP COM 78648T100 1,272,944 20,774 1.66 89,233 -3.31 0.0426
2017-02-09 2016-12-31 13F SAFETY INS GROUP COM 78648T100 1,252,170 67,340 5.68 92,285 15.87 0.0461
2016-11-10 2016-09-30 13F SAFETY INS GROUP COM 78648T100 1,184,830 -27,771 -2.29 79,644 6.66 0.0430
2016-08-09 2016-06-30 13F SAFETY INS GROUP COM 78648T100 1,212,601 -26,218 -2.12 74,672 5.64 0.0430
2016-05-13 2016-03-31 13F SAFETY INS GROUP COM 78648T100 1,238,819 -1,368 -0.11 70,687 1.09 0.0423
2016-02-10 2015-12-31 13F SAFETY INS GROUP COM 78648T100 1,240,187 -6,335 -0.51 69,922 3.59 0.0436
2015-11-13 2015-09-30 13F SAFETY INS GROUP COM 78648T100 1,246,522 -23,723 -1.87 67,499 -7.92 0.0443
2015-08-14 2015-06-30 13F SAFETY INS GROUP COM 78648T100 1,270,245 -16,803 -1.31 73,306 -4.67 0.0449
2015-05-14 2015-03-31 13F SAFETY INS GROUP COM 78648T100 1,287,048 -7,147 -0.55 76,901 -7.17 0.0486
2015-02-06 2014-12-31 13F SAFETY INS GROUP COM 78648T100 1,294,195 -11,483 -0.88 82,842 17.69 0.0544
2014-11-13 2014-09-30 13F SAFETY INS GROUP COM 78648T100 1,305,678 -7,965 -0.61 70,390 4.29 0.0499
2014-08-08 2014-06-30 13F SAFETY INS GROUP COM 78648T100 1,313,643 249,806 23.48 67,495 17.82 0.0469
2014-05-14 2014-03-31 13F SAFETY INS GROUP COM 78648T100 1,063,837 12,175 1.16 57,287 -3.24 0.0428
2014-02-12 2013-12-31 13F SAFETY INS GROUP COM 78648T100 1,051,662 6,113 0.58 59,208 6.91 0.0461
2013-11-13 2013-09-30 13F SAFETY INS GROUP COM 78648T100 1,045,549 963 0.09 55,382 9.29 0.0479
2013-08-15 2013-06-30 13F SAFETY INS GROUP COM 78648T100 1,044,586 1,044,586 50,674 0.0477
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.