16 insiders reported 180 Form 4 transactions for SAFETY INSURANCE GROUP INC (SAFT) over the past 18 months (most recent 2026-07-28). Recent activity: Plymouth Rock Co Inc (10% Owner) Sell 466,175 shares, SRB CORP (10% Owner) Sell 774,177 shares, Plymouth Rock Co Inc (10% Owner) Sell 774,177 shares, SRB CORP (10% Owner) Sell 466,175 shares, SRB CORP (10% Owner) Sell 38,835 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-28 | Plymouth Rock Co Inc | 10% Owner | Sell | 466,175 | $48.1M |
| 2026-07-28 | SRB CORP | 10% Owner | Sell | 774,177 | $79.8M |
| 2026-07-28 | Plymouth Rock Co Inc | 10% Owner | Sell | 774,177 | $79.8M |
| 2026-07-28 | SRB CORP | 10% Owner | Sell | 466,175 | $48.1M |
| 2026-07-27 | SRB CORP | 10% Owner | Sell | 38,835 | $4.0M |
| 2026-07-27 | Plymouth Rock Co Inc | 10% Owner | Sell | 38,835 | $4.0M |
| 2026-07-20 | SRB CORP | 10% Owner | Sell | 5,159 | $392,247 |
| 2026-07-20 | Plymouth Rock Co Inc | 10% Owner | Sell | 5,159 | $392,247 |
| 2026-07-14 | SRB CORP | 10% Owner | Sell | 34,272 | $2.6M |
| 2026-07-14 | Plymouth Rock Co Inc | 10% Owner | Sell | 34,272 | $2.6M |
| 2026-07-10 | SRB CORP | 10% Owner | Sell | 2,650 | $202,754 |
| 2026-07-10 | Plymouth Rock Co Inc | 10% Owner | Sell | 2,650 | $202,754 |
| 2026-03-23 | Plymouth Rock Co Inc | Insider | Sell | 14,151 | $1.0M |
| 2026-03-23 | SRB CORP | Insider | Sell | 14,151 | $1.0M |
| 2026-03-19 | SRB CORP | Insider | Sell | 1,199 | $87,599 |
| 2026-03-19 | Plymouth Rock Co Inc | Insider | Sell | 1,199 | $87,599 |
| 2026-03-03 | Lam Brian Siu-Gae | VP of Insurance Operations | Sell | 249 | $0 |
| 2026-03-03 | Lam Brian Siu-Gae | VP of Insurance Operations | Buy | 1,721 | $0 |
| 2026-03-03 | Lam Brian Siu-Gae | VP of Insurance Operations | Buy | 1,982 | $0 |
| 2026-03-03 | Lam Brian Siu-Gae | VP of Insurance Operations | Sell | 38 | $2,924 |
| 2026-03-03 | Lam Brian Siu-Gae | VP of Insurance Operations | Sell | 8 | $619 |
| 2026-03-03 | Lam Brian Siu-Gae | VP of Insurance Operations | Sell | 70 | $5,375 |
| 2026-03-03 | Lam Brian Siu-Gae | VP of Insurance Operations | Sell | 142 | $11,004 |
| 2026-03-03 | Lam Brian Siu-Gae | VP of Insurance Operations | Sell | 17 | $1,295 |
| 2026-03-03 | Lam Brian Siu-Gae | VP of Insurance Operations | Sell | 176 | $13,533 |
Source: SEC Form 4 filings · as of 2026-07-28