We have seen 68 open market insider transactions reported today, January 10, 2026. You can track them all on the Quiver Quantitative Insider Trading dashboard. Here are some of the largest open market insider stock purchases we have seen.
BERKLEY W R CORP ($WRB)
MITSUI SUMITOMO INSURANCE CO LTD bought 161,176 shares on 01/09 for an estimated $11,037,590.
Past $WRB Insider Trades
BERKLEY W R CORP insiders have traded $WRB stock on the open market 25 times in the past 6 months. Of those trades, 25 have been purchases and 0 have been sales.
Here’s a breakdown of recent trading of $WRB stock by insiders over the last 6 months:
- SUMITOMO INSURANCE CO LTD MITSUI has made 25 purchases buying 3,313,875 shares for an estimated $231,810,491 and 0 sales.
ZENAS BIOPHARMA, INC. ($ZBIO)
MOULDER LEON O JR (Chief Executive Officer) bought 50,000 shares on 01/07 for an estimated $819,000.
Past $ZBIO Insider Trades
ZENAS BIOPHARMA, INC. insiders have traded $ZBIO stock on the open market 11 times in the past 6 months. Of those trades, 11 have been purchases and 0 have been sales.
Here’s a breakdown of recent trading of $ZBIO stock by insiders over the last 6 months:
- FUNDS MANAGEMENT LLC FAIRMOUNT purchased 316,219 shares for an estimated $6,008,161
- HONGBO LU purchased 263,160 shares for an estimated $5,000,040
- LEON O JR MOULDER (Chief Executive Officer) has made 4 purchases buying 136,928 shares for an estimated $2,408,948 and 0 sales.
- ONE CAPITAL MANAGEMENT, LLC SR has made 2 purchases buying 126,315 shares for an estimated $2,399,985 and 0 sales.
- PATRICK G ENRIGHT has made 2 purchases buying 117,255 shares for an estimated $2,250,026 and 0 sales.
- JASON RALEIGH NUNN purchased 63,158 shares for an estimated $1,200,002
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
