SRB CORP 4
4 · SAFETY INSURANCE GROUP INC · Filed Jul 14, 2026
Research Summary
AI-generated summary of this filing
Safety Insurance (SAFT) SRB Corp Sells 34,272 Shares
What Happened
SRB Corporation (reported as a 10% owner and filing jointly with The Plymouth Rock Company Incorporated) sold 34,272 shares of Safety Insurance Group Inc. (SAFT) on July 13, 2026. The shares were disposed at $76.04 each for a total value of $2,605,933. This was a sale (S) — not a purchase or option exercise — and sales by institutional/affiliate holders are often routine portfolio or cash‑management transactions rather than direct signals about company prospects.
Key Details
- Transaction date: 2026-07-13; Filing date (Form 4): 2026-07-14 (timely filing).
- Amount sold: 34,272 shares at $76.04 per share; proceeds ≈ $2,605,933.
- Transaction type: Sale (open market or private sale; the filing indicates either/or but does not specify which).
- Shares owned after transaction: Not specified in the provided excerpt of the filing.
- Notable footnotes: The Form 4 is jointly filed by SRB Corporation and The Plymouth Rock Company (PRC). SRB is a direct, wholly‑owned subsidiary of PRC and acts as investment manager to PRC; SRB and PRC disclaim beneficial ownership of certain reported shares except to the extent of pecuniary interest. The filing lists numerous PRC subsidiaries and related entities holding large aggregated positions (examples in the filing: PRC direct holding of 4,120 shares, subsidiaries totaling 757,680 shares, and PSIA-related entities totaling 995,933 shares).
- No 10b5‑1 plan, tax withholding, or option exercise is indicated in the provided excerpt.
Context
- This is institutional/affiliate selling by a corporate reporting person (SRB/PRC group), not an individual officer or director. Such sales commonly reflect portfolio rebalancing or liquidity needs rather than insider views of the business.
- Because this is a straight sale (code S) with no exercise or award involved, there's no immediate complexity like cashless exercise or tax withholding to interpret.
Insider Transaction Report
Form 4
SRB CORP
10% Owner
Transactions
- Sale
Common Stock
[F1][F2][F3][F4][F5]2026-07-13$76.04/sh−34,272$2,605,933→ 1,757,733 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 757,680 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 995,933 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|2026-07-14