SRB CORP 4
4 · SAFETY INSURANCE GROUP INC · Filed Jul 20, 2026
Research Summary
AI-generated summary of this filing
Safety Insurance (SAFT) 10% Owner SRB Corp Sells 5,159 Shares
What Happened
- SRB Corporation (reported as a 10% owner and investment manager) reported an open-market/private sale of 5,159 shares of Safety Insurance Group, Inc. (SAFT) on July 17, 2026. The shares were sold at $76.03 per share for gross proceeds of approximately $392,247. The Form 4 was filed on July 20, 2026.
- This was a sale (disposition) by an institutional reporting person rather than an individual executive; sales are often routine and do not necessarily signal management sentiment.
Key Details
- Transaction date and price: 2026-07-17 — 5,159 shares sold at $76.03 each.
- Gross proceeds: ~$392,247.
- Filing date: Form 4 filed 2026-07-20 — appears filed within the standard 2-business-day window for Form 4s.
- Shares owned after transaction: Not specified in the primary transaction line of the provided filing excerpt.
- Notable footnotes:
- F1–F2: This Form 4 is a joint filing by SRB Corporation and The Plymouth Rock Company Incorporated (PRC); SRB is a direct, wholly‑owned subsidiary of PRC and acts as investment manager, and SRB disclaims beneficial ownership of the shares reported.
- F3–F5: The filing lists PRC and various subsidiaries (and managed entities like PSIA) as holding shares reported on this Form 4 — e.g., PRC directly 4,120 shares; certain PRC subsidiaries aggregate 755,559 shares; PSIA and its subsidiaries aggregate 992,895 shares. PRC disclaims beneficial ownership except to the extent of pecuniary interest.
- Transaction type code: S = Sale (open market or private sale).
Context
- This is institutional/10% owner activity (SRB/PRC group), not an insider executive trade; institutional sales can reflect portfolio rebalancing or other fund-level decisions rather than company-specific views.
- Footnotes emphasize disclaimers of beneficial ownership and that the filing is joint; treat ownership statements as managed/institutional holdings rather than personal insider stakes.
Insider Transaction Report
Form 4
SRB CORP
10% Owner
Transactions
- Sale
Common Stock
[F1][F2][F3][F4][F5]2026-07-17$76.03/sh−5,159$392,247→ 1,752,574 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 755,559 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 992,895 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|2026-07-20