Form 4: Safety Insurance Group 10% Owner Sells Shares

A 10% owner of Safety Insurance Group, SRB Corp and Plymouth Rock Co Inc, reported the sale of 7,320 common shares in late February 2026.

Summary

• SRB Corporation and The Plymouth Rock Company Incorporated, jointly filing as a 10% owner and director, reported transactions involving Safety Insurance Group Inc. (SAFT) common stock.
• On February 23, 2026, 4,089 shares of common stock were disposed of at a price of $77.4788 per share.
• On February 24, 2026, an additional 3,231 shares of common stock were disposed of at a price of $77.1371 per share.
• Following these transactions, the reporting persons beneficially own 1,834,964 shares of common stock.
• The transactions were made pursuant to a contract, instruction, or written plan for the purchase or sale of equity securities intended to satisfy Rule 10b5-1(c).
• SRB Corporation acts as investment manager to Plymouth Rock Company Incorporated (PRC) and its subsidiaries, which collectively hold the reported shares.

Sentiment

Score: 4

Explanation: StockSavvy.ai views this as a moderately negative signal due to insider selling by a significant owner, even if executed under a pre-planned trading arrangement, as it can impact investor sentiment.

Negatives

• A 10% owner and director, SRB Corp and Plymouth Rock Co Inc, sold a total of 7,320 shares of common stock over two days.

Future Outlook

The filing does not contain any forward-looking statements or guidance.

Industry Context

StockSavvy.ai notes that insider selling, even when pre-scheduled under a 10b5-1 plan, can sometimes be interpreted by the market as a signal regarding the company's future prospects or valuation, though the specific reasons for the sale are not disclosed in this filing.

Related Party Transactions

• SRB Corporation is a direct, wholly-owned subsidiary of The Plymouth Rock Company Incorporated (PRC) and acts as investment manager to PRC.
• SRB and PRC are jointly filing as they may be deemed a 'group' within the meaning of Section 13(d)(3) of the Securities Act of 1934.
• PRC and its various direct and indirect subsidiaries (e.g., Plymouth Rock Security Corporation, Plymouth Rock Assurance Corporation, Palisades Safety and Insurance Association, etc.) collectively hold the reported shares of Common Stock.

Stakeholder Impact

• Shareholders may interpret the insider selling as a negative signal, potentially influencing their investment decisions.
• The transactions do not directly impact employees, customers, suppliers, or creditors as they relate solely to beneficial ownership changes.

Key Dates

Recommendation

While insider selling by a 10% owner can be a negative signal, the relatively small volume of shares sold (7,320) compared to the total beneficial ownership (over 1.8 million shares) and the potential for it to be part of a pre-scheduled 10b5-1 plan suggest that it may not indicate a fundamental shift in the company's outlook. A 'hold' recommendation is appropriate to observe further developments without immediate divestment.

Keywords

Safety Insurance Group, SAFT, Insider Selling, Form 4, SRB Corp, Plymouth Rock Co Inc, Equity Disposal, 10b5-1 Plan, Insurance