Insider Stock Purchases: August 17, 2026

We have seen 119 open market insider transactions reported today, August 17, 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.

BORR DRILLING LTD ($BORR)

Troim Tor Olav bought 500,000 shares on 08/14 for an estimated $2,193,400.

Past $BORR Insider Trades

BORR DRILLING LTD insiders have traded $BORR stock on the open market 10 times in the past 6 months. Of those trades, 9 have been purchases and 1 have been sales.

Here’s a breakdown of recent trading of $BORR stock by insiders over the last 6 months:

THIAGO MORDEHACHVILI sold 8,000,000 shares for an estimated $37,600,000
TOR OLAV TROIM has made 5 purchases buying 4,063,000 shares for an estimated $18,615,050 and 0 sales.
PATRICK SCHORN purchased 1,200,000 shares for an estimated $1,992,000
JEFFREY CURRIE has made 2 purchases buying 375,000 shares for an estimated $1,829,137 and 0 sales.
DE OLIVEIRA BRUNO MORAND (Chief Executive Officer) purchased 275,000 shares for an estimated $456,500

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

ON HOLDING AG ($ONON)

Coppetti Caspar Felix (Executive Officer & Co-CEO) bought 65,000 shares on 08/14 for an estimated $1,993,790.

Past $ONON Insider Trades

ON HOLDING AG insiders have traded $ONON stock on the open market 15 times in the past 6 months. Of those trades, 8 have been purchases and 7 have been sales.

Here’s a breakdown of recent trading of $ONON stock by insiders over the last 6 months:

CASPAR FELIX COPPETTI (Executive Officer & Co-CEO) has made 3 purchases buying 125,000 shares for an estimated $4,191,892 and 0 sales.
OLIVIER BERNHARD (Executive Officer) has made 3 purchases buying 125,000 shares for an estimated $4,191,889 and 0 sales.
DAVID MICHAEL ALLEMANN (Executive Officer & Co-CEO) has made 2 purchases buying 60,000 shares for an estimated $2,198,098 and 0 sales.
MARTIN HOFFMANN (CEO) has made 0 purchases and 6 sales selling 24,900 shares for an estimated $879,975.
SCOTT ANDREW MAGUIRE (COO) sold 1,534 shares for an estimated $55,353

MESA LABORATORIES INC /CO/ ($MLAB)

Kadia Siddhartha (President and CEO) bought 7,093 shares on 08/13 for an estimated $800,090.

Past $MLAB Insider Trades

MESA LABORATORIES INC /CO/ insiders have traded $MLAB stock on the open market 12 times in the past 6 months. Of those trades, 5 have been purchases and 7 have been sales.

Here’s a breakdown of recent trading of $MLAB stock by insiders over the last 6 months:

JOHN JAMES SULLIVAN sold 7,093 shares for an estimated $800,090
SIDDHARTHA KADIA (President and CEO) purchased 7,093 shares for an estimated $800,090
JOHN SAKYS (CFO) has made 0 purchases and 2 sales selling 4,050 shares for an estimated $376,871.
BRIAN DAVID ARCHBOLD (SVP Operations) has made 0 purchases and 2 sales selling 3,667 shares for an estimated $341,745.
SHIRAZ SHABANALI LADIWALA purchased 3,500 shares for an estimated $252,805
R TONY TRIPENY has made 2 purchases buying 2,215 shares for an estimated $202,261 and 0 sales.
MARK CHRISTOPHER CAPONE purchased 1,301 shares for an estimated $99,331
LYNDSEY ELIZABETH CRENNEN (CAO) has made 0 purchases and 2 sales selling 560 shares for an estimated $51,509.

RESIDEO TECHNOLOGIES, INC. ($REZI)

Foster Joshua Peter (SVP, GC & Corp Sec) bought 15,317 shares on 08/14 for an estimated $315,223.

Past $REZI Insider Trades

RESIDEO TECHNOLOGIES, INC. insiders have traded $REZI stock on the open market 2 times in the past 6 months. Of those trades, 2 have been purchases and 0 have been sales.

Here’s a breakdown of recent trading of $REZI stock by insiders over the last 6 months:

JOSHUA PETER FOSTER (SVP, GC & Corp Sec) purchased 15,317 shares for an estimated $315,223
THOMAS A SURRAN (President and CEO) purchased 15,000 shares for an estimated $306,900

ENHANCED GROUP INC. ($ENHA)

Apeiron Investment Group Ltd. bought 150,000 shares on 08/14 for an estimated $295,620.

Past $ENHA Insider Trades

ENHANCED GROUP INC. insiders have traded $ENHA 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 $ENHA stock by insiders over the last 6 months:

INVESTMENT GROUP LTD. APEIRON purchased 150,000 shares for an estimated $295,620

To track insider transactions, check out Quiver Quantitative's insider trading dashboard.