SRB CORP

Business address
695 Atlantic Avenue, Boston, MA, 02111
Top holdings (ownership)
SAFT
Top securities (13F)
MSFT, SAFT, XLK, GE, RNR, AMZN, XLC, XLB, XLV, WMT, INTC, GWW, TM, GOOGL, PG, MRK, CVS, SHW, CMCSA, and RS
State of incorporation
MA
Fiscal year end
31 December
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SRB CORP has filed 90 SEC EDGAR filings since 25 Mar 2011

Latest Filings

Form type Document Filing Description Filing date Reporting date File number(s)
13F-HR Open Document Open Filing 14 Nov 2025 30 Sep 2025 028-15030
N-PX Open Document Open Filing 25 Aug 2025 30 Jun 2025 028-15030
13F-HR Open Document Open Filing 14 Aug 2025 30 Jun 2025 028-15030
13F-HR Open Document Open Filing 14 May 2025 31 Mar 2025 028-15030
13F-HR Open Document Open Filing 14 Feb 2025 31 Dec 2024 028-15030
13F-HR Open Document Open Filing 14 Nov 2024 30 Sep 2024 028-15030
N-PX Open Document Open Filing 30 Aug 2024 30 Jun 2024 028-15030
13F-HR Open Document Open Filing 14 Aug 2024 30 Jun 2024 028-15030
13F-HR Open Document Open Filing 14 May 2024 31 Mar 2024 028-15030
SC 13G/A Open Document Open Filing SCHEDULE 13G/A 14 Feb 2024
13F-HR Open Document Open Filing 14 Feb 2024 31 Dec 2023 028-15030
13F-HR Open Document Open Filing 14 Nov 2023 30 Sep 2023 028-15030
13F-HR Open Document Open Filing 14 Aug 2023 30 Jun 2023 028-15030
4 Open Document Open Filing 21 Jul 2023 19 Jul 2023 000-50070
4 Open Document Open Filing 15 Jun 2023 14 Jun 2023 000-50070
4 Open Document Open Filing 08 Jun 2023 06 Jun 2023 000-50070
4 Open Document Open Filing 06 Jun 2023 02 Jun 2023 000-50070
4 Open Document Open Filing 02 Jun 2023 31 May 2023 000-50070
4 Open Document Open Filing 31 May 2023 26 May 2023 000-50070
4 Open Document Open Filing 26 May 2023 24 May 2023 000-50070
4 Open Document Open Filing 24 May 2023 22 May 2023 000-50070
13F-HR Open Document Open Filing 15 May 2023 31 Mar 2023 028-15030
13F-HR Open Document Open Filing 14 Feb 2023 31 Dec 2022 028-15030
SC 13G/A Open Document Open Filing SCHEDULE 13G-A 14 Feb 2023
13F-HR Open Document Open Filing 14 Nov 2022 30 Sep 2022 028-15030
13F-HR Open Document Open Filing 12 Aug 2022 30 Jun 2022 028-15030
13F-HR Open Document Open Filing 13 May 2022 31 Mar 2022 028-15030
SC 13G/A Open Document Open Filing SCHEDULE 13G/A FOR SAFETY INSURANCE GROUP, INC. BY SRB CORPORATION 14 Feb 2022
13F-HR Open Document Open Filing 14 Feb 2022 31 Dec 2021 028-15030
13F-HR Open Document Open Filing 12 Nov 2021 30 Sep 2021 028-15030
13F-HR Open Document Open Filing 13 Aug 2021 30 Jun 2021 028-15030
13F-HR Open Document Open Filing 14 May 2021 31 Mar 2021 028-15030
SC 13G/A Open Document Open Filing SCHEDULE 13G-A FOR SAFETY INSURANCE GROUP, INC. BY SRB CORPORATION. 12 Feb 2021
13F-HR Open Document Open Filing 12 Feb 2021 31 Dec 2020 028-15030
13F-HR Open Document Open Filing 13 Nov 2020 30 Sep 2020 028-15030
4 Open Document Open Filing PRIMARY DOCUMENT 06 Nov 2020 04 Nov 2020 000-50070
4 Open Document Open Filing PRIMARY DOCUMENT 03 Nov 2020 30 Oct 2020 000-50070
4 Open Document Open Filing PRIMARY DOCUMENT 29 Oct 2020 27 Oct 2020 000-50070
4 Open Document Open Filing PRIMARY DOCUMENT 22 Oct 2020 20 Oct 2020 000-50070
13F-HR Open Document Open Filing 14 Aug 2020 30 Jun 2020 028-15030
13F-HR Open Document Open Filing 14 May 2020 31 Mar 2020 028-15030
4 Open Document Open Filing PRIMARY DOCUMENT 24 Mar 2020 23 Mar 2020 000-50070
4 Open Document Open Filing PRIMARY DOCUMENT 23 Mar 2020 20 Mar 2020 000-50070
4 Open Document Open Filing PRIMARY DOCUMENT 19 Mar 2020 18 Mar 2020 000-50070
SC 13G/A Open Document Open Filing SCHEDULE 13G-A FOR SAFETY INSURANCE GROUP, INC. BY SRB CORPORATION 14 Feb 2020
13F-HR Open Document Open Filing 14 Feb 2020 31 Dec 2019 028-15030
13F-HR Open Document Open Filing 14 Nov 2019 30 Sep 2019 028-15030
13F-HR Open Document Open Filing 14 Aug 2019 30 Jun 2019 028-15030
3 Open Document Open Filing PRIMARY DOCUMENT 24 Jun 2019 20 Jun 2019 000-50070
13F-HR Open Document Open Filing 14 May 2019 31 Mar 2019 028-15030
SC 13G/A Open Document Open Filing SCHEDULE 13G-A FOR SAFETY INSURANCE GROUP, INC. BY SRB CORPORATION 14 Feb 2019
13F-HR Open Document Open Filing 14 Feb 2019 31 Dec 2018 028-15030
13F-HR Open Document Open Filing 14 Nov 2018 30 Sep 2018 028-15030
13F-HR Open Document Open Filing 14 Aug 2018 30 Jun 2018 028-15030
13F-HR Open Document Open Filing 14 May 2018 31 Mar 2018 028-15030
3 Open Document Open Filing PRIMARY DOCUMENT 14 Feb 2018 06 Feb 2018 000-50070
13F-HR Open Document Open Filing 14 Feb 2018 31 Dec 2017 028-15030
SC 13G/A Open Document Open Filing SCHEDULE 13G/A FOR SAFETY INSURANCE GROUP, INC. BY SRB CORPORATION 09 Feb 2018
13F-HR Open Document Open Filing 14 Nov 2017 30 Sep 2017 028-15030
13F-HR Open Document Open Filing 14 Aug 2017 30 Jun 2017 028-15030
13F-HR Open Document Open Filing 15 May 2017 31 Mar 2017 028-15030
13F-HR Open Document Open Filing 15 Feb 2017 31 Dec 2016 028-15030
SC 13G/A Open Document Open Filing SCHEDULE 13G/A FOR SAFETY INSURANCE GROUP, INC. BY SRB CORPORATION 15 Feb 2017
13F-HR Open Document Open Filing 15 Nov 2016 30 Sep 2016 028-15030
13F-HR Open Document Open Filing 15 Aug 2016 30 Jun 2016 028-15030
13F-HR Open Document Open Filing 13 May 2016 31 Mar 2016 028-15030
SC 13G/A Open Document Open Filing SCHEDULE 13G/A FOR SAFETY INSURANCE GROUP, INC. 12 Feb 2016
13F-HR Open Document Open Filing 12 Feb 2016 31 Dec 2015 028-15030
13F-HR Open Document Open Filing 13 Nov 2015 30 Sep 2015 028-15030
13F-HR/A Open Document Open Filing 14 Aug 2015 30 Jun 2015 028-15030
13F-HR Open Document Open Filing 14 Aug 2015 30 Jun 2015 028-15030
13F-HR Open Document Open Filing 15 May 2015 31 Mar 2015 028-15030
SC 13G/A Open Document Open Filing SC 13G/A AMENDMENT NO. 4 FOR SAFETY INSURANCE GROUP, INC. BY SRB CORPORATION 17 Feb 2015
13F-HR Open Document Open Filing 17 Feb 2015 31 Dec 2014 028-15030
13F-HR Open Document Open Filing 14 Nov 2014 30 Sep 2014 028-15030
13F-HR Open Document Open Filing 14 Aug 2014 30 Jun 2014 028-15030
13F-HR Open Document Open Filing 14 May 2014 31 Mar 2014 028-15030
SC 13G/A Open Document Open Filing SCHEDULE 13G FOR SAFETY INSURANCE GROUP, INC. BY SRB CORPORATION 14 Feb 2014
13F-HR Open Document Open Filing 14 Feb 2014 31 Dec 2013 028-15030