SRB CORP
SEC Form 4 insider trading activity
SRB CORP has filed 10 SEC Form 4 filings (15 transaction rows) across 1 company, with disclosures dating back to 2026. 10 of those filings fall inside the rolling window. Most recent filing: Jul 29, 2026.
On the most recent filing, SRB CORP is listed as 10% Owner at SAFETY INSURANCE GROUP INC. Inside the rolling window, SRB CORP reported no open-market purchases and 13 open-market sales totaling $138.6M in SAFT. The largest disclosed transaction in the window is a sale of 1,240,352 SAFT shares on Jul 27, 2026, worth $127.8M.
Companies traded
Other insiders at SAFT
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$138.6M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| SAFT | 10% Owner | Sale | 1,240,352 | $127.8M | Jul 29 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 38,835 | $4.0M | Jul 27 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 5,159 | $392K | Jul 20 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 34,272 | $2.6M | Jul 15 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 2,650 | $203K | Jul 10 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 14,151 | $1.0M | Mar 23 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 1,199 | $88K | Mar 19 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 235 | $18K | Mar 3 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 11,270 | $862K | Mar 3 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 2,147 | $168K | Feb 27 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 11,487 | $900K | Feb 27 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 4,089 | $317K | Feb 25 | SEC ↗ | |
| SAFT | 10% Owner | Sale | 3,231 | $249K | Feb 25 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has SRB CORP made?
SRB CORP has filed 10 SEC Form 4 filings (15 transaction rows) across 1 company since 2026.
Which companies does SRB CORP trade?
SRB CORP has filed SEC Form 4 disclosures for 1 company, including SAFT.
When was SRB CORP's most recent SEC Form 4 filing?
SRB CORP's most recent SEC Form 4 filing on Tracefour is dated Jul 29, 2026.
What is SRB CORP's total buy and sell value in the current window?
Inside the rolling retention window, SRB CORP bought $0 and sold $138.6M based on SEC Form 4 filings.
What was SRB CORP's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 1,240,352 SAFT shares on 2026-07-27, worth $127.8M, per SEC Form 4 filings.