We have seen 31 open market insider transactions reported today, January 24, 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 330,000 shares on 01/22 for an estimated $22,258,665.
Past $WRB Insider Trades
BERKLEY W R CORP insiders have traded $WRB stock on the open market 41 times in the past 6 months. Of those trades, 41 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 41 purchases buying 5,987,916 shares for an estimated $413,588,609 and 0 sales.
QT IMAGING HOLDINGS, INC. ($QTIH)
Katz Avi S (CHAIRMAN) bought 24,107 shares on 01/22 for an estimated $155,008.
Past $QTIH Insider Trades
QT IMAGING HOLDINGS, INC. insiders have traded $QTIH stock on the open market 1 times in the past 6 months. Of those trades, 1 have been purchases and 0 have been sales.
Here’s a breakdown of recent trading of $QTIH stock by insiders over the last 6 months:
- AVI S KATZ (CHAIRMAN) purchased 24,107 shares for an estimated $155,008
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
