We have seen 105 open market insider transactions reported today, February 28, 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 147,000 shares on 02/27 for an estimated $10,528,963.
Past $WRB Insider Trades
BERKLEY W R CORP insiders have traded $WRB stock on the open market 90 times in the past 6 months. Of those trades, 90 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 90 purchases buying 9,920,686 shares for an estimated $686,712,904 and 0 sales.
TAIWAN FUND INC ($TWN)
Kirby William C. bought 50,686 shares on 02/26 for an estimated $3,289,579.
Past $TWN Insider Trades
TAIWAN FUND INC insiders have traded $TWN 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 $TWN stock by insiders over the last 6 months:
- WILLIAM C. KIRBY purchased 50,686 shares for an estimated $3,289,579
REXFORD INDUSTRIAL REALTY, INC. ($REXR)
CLARK LAURA E (Chief Operating Officer) bought 5,310 shares on 02/27 for an estimated $200,338.
Past $REXR Insider Trades
REXFORD INDUSTRIAL REALTY, INC. insiders have traded $REXR stock on the open market 7 times in the past 6 months. Of those trades, 3 have been purchases and 4 have been sales.
Here’s a breakdown of recent trading of $REXR stock by insiders over the last 6 months:
- MICHAEL S. FRANKEL (Co-CEO, Co-President) has made 0 purchases and 4 sales selling 57,118 shares for an estimated $2,345,641.
- LAURA E CLARK (Chief Operating Officer) purchased 5,310 shares for an estimated $200,338
- DAVID P STOCKERT purchased 5,000 shares for an estimated $186,957
- MICHAEL FITZMAURICE (Chief Financial Officer) purchased 2,650 shares for an estimated $99,507
IONQ, INC. ($IONQ)
TEUBER WILLIAM J JR bought 3,000 shares on 02/27 for an estimated $115,155.
Past $IONQ Insider Trades
IONQ, INC. insiders have traded $IONQ stock on the open market 12 times in the past 6 months. Of those trades, 2 have been purchases and 10 have been sales.
Here’s a breakdown of recent trading of $IONQ stock by insiders over the last 6 months:
- RIMA ALAMEDDINE (Chief Revenue Officer) has made 0 purchases and 2 sales selling 119,976 shares for an estimated $5,576,026.
- THOMAS G. KRAMER (Chief Financial Officer) sold 64,578 shares for an estimated $2,700,858
- KATHRYN K. CHOU has made 0 purchases and 2 sales selling 25,000 shares for an estimated $1,302,980.
- MASI NICCOLO DE (President and CEO) sold 16,120 shares for an estimated $715,753
- ROBERT T. CARDILLO has made 0 purchases and 2 sales selling 13,938 shares for an estimated $646,876.
- WILLIAM J JR TEUBER has made 2 purchases buying 5,000 shares for an estimated $224,785 and 0 sales.
- PAUL T DACIER (Chief Administrative Officer) sold 4,175 shares for an estimated $185,376
- GABRIELLE B TOLEDANO sold 616 shares for an estimated $19,096
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
