SRB CORP 4
4 · SAFETY INSURANCE GROUP INC · Filed Jul 10, 2026
Research Summary
AI-generated summary of this filing
SAFT 10% Owner SRB Corporation Sells 2,650 Shares
What Happened
SRB Corporation (reported as a 10% owner/affiliate) sold 2,650 shares of Safety Insurance Group, Inc. (SAFT) on July 9, 2026. The shares were disposed at $76.51 each, for total gross proceeds of $202,754. The Form 4 is jointly filed with The Plymouth Rock Company Incorporated (PRC); SRB acts as an investment manager to PRC and disclaims beneficial ownership of the reported shares.
Key Details
- Transaction type: Sale (Code S). Date: 2026-07-09. Price: $76.51 per share. Shares sold: 2,650. Proceeds: $202,754.
- Shares reported on this Form 4 (aggregate, per footnotes): 1,792,005 shares — broken down as PRC 4,120; PRC subsidiaries 771,766; PSIA group and subsidiaries 1,016,119.
- Post-transaction beneficial ownership for SRB is not asserted in the filing; SRB and PRC include disclaimers that they may not be beneficial owners of the reported shares except to the extent of pecuniary interest.
- Filing timeliness: Reported period 2026-07-09; Form filed 2026-07-10 — appears timely.
Context
This is an institutional/affiliate sale by an entity that may be deemed a 10% owner rather than an executive insider. Footnotes clarify a joint filing structure and disclaimers of beneficial ownership, so the sale may reflect portfolio management decisions rather than personal insider trading.
Insider Transaction Report
Form 4
SRB CORP
10% Owner
Transactions
- Sale
Common Stock
[F1][F2][F3][F4][F5]2026-07-09$76.51/sh−2,650$202,754→ 1,792,005 total(indirect: See)
Footnotes (5)
- [F1]This Form 4 is being jointly filed by SRB Corporation, a Massachusetts corporation ("SRB"), and The Plymouth Rock Company Incorporated, a Massachusetts corporation("PRC"), and each shall be deemed a Reporting Person. SRB is a direct, wholly-owned subsidiary of PRC and acts as investment manager to PRC and, in such capacity, may be deemed to have voting and dispositive power over the shares of Common Stock reported on this Form 4. SRB disclaims beneficial ownership of the shares of Common Stock reported on this Form 4, and this report shall not be deemed an admission that SRB is a beneficial owner of such shares for purposes of Section 16 or for any other purpose.(Continued in Footnote 2)
- [F2]The Reporting Persons are making this single joint filing because they may be deemed a "group" within the meaning of Section 13(d)(3) of the Securities Act of 1934, as amended. This joint filing shall not, however, be deemed an affirmation that a group exists among the Reporting Persons for the purposes of the Securities Exchange Act of 1934 or for any other purpose and each Reporting Person expressly disclaims beneficial ownership of any securities beneficially owned by any other person.
- [F3]PRC holds 4,120 of the shares of Common Stock reported on this Form 4. The following subsidiaries of PRC hold in the aggregate 771,766 shares of the Common Stock reported on this Form 4: Plymouth Rock Security Corporation, a Massachusetts security corporation ("PRSC"); Plymouth Rock Assurance Corporation, a Massachusetts corporation ("PRAC"); Plymouth Rock Assurance Preferred Corporation, a New York corporation ("PRAPC"); Plymouth Rock Assurance Corporation of New York, a New York corporation ("PRACNY"); Pilgrim Insurance Company, a Massachusetts corporation ("Pilgrim"); Plymouth Rock Home Assurance Corporation, a Massachusetts corporation ("PRHAC"); Bunker Hill Insurance Casualty Company, a Massachusetts corporation ("BHICC"); Bunker Hill Preferred Insurance Company, a Massachusetts corporation ("BHPREFIC"); Bunker Hill Property Insurance Company, a Massachusetts corporation ("BHPIC"); (Continued in Footnote 4)
- [F4]and Bunker Hill Insurance Company, a Massachusetts corporation ("BHIC"). PRSC, PRAC, and PRHAC are direct wholly-owned subsidiaries of PRC. PRAPC and PRACNY are direct wholly-owned subsidiaries of PRAC. Pilgrim is a direct wholly-owned subsidiary of SRB. BHICC, BHPREFIC, BHPIC, and BHIC are direct wholly-owned subsidiaries of PRHAC. Palisades Safety and Insurance Association, a New Jersey reciprocal insurance exchange ("PSIA"), is managed by a subsidiary of PRC. PSIA and the following subsidiaries of PSIA hold in the aggregate 1,016,119 shares of the Common Stock reported on this Form 4: High Point Safety and Insurance Company, a New Jersey corporation ("HPSIC"); High Point Property and Casualty Insurance Company, a New Jersey corporation ("HPPCIC"); High Point Preferred Insurance Company, a New Jersey corporation ("HPPIC"); Palisades Insurance Company, a New Jersey corporation ("PICNJ"); (Continued in Footnote 5)
- [F5]Twin Lights Insurance Company, a New Jersey corporation ("TLIC"); and Teachers Auto Insurance Company of New Jersey, a New Jersey corporation ("TAIC"). HPSIC, HPPIC, TLIC, and TAIC are direct wholly-owned subsidiaries of HPPCIC, which is a direct wholly-owned subsidiary of PSIA, as is PICNJ. PRC disclaims beneficial ownership of the shares of Common Stock reported on this Form 4 except to the extent of its pecuniary interest therein, and this report shall not be deemed an admission that PRC is a beneficial owner of such shares for purposes of Section 16 or for any other purpose.
Signature
/s/ Frederick C. Childs|2026-07-10