Insider Stock Purchases: June 03, 2026

We have seen 133 open market insider transactions reported today, June 03, 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.

AURINIA PHARMACEUTICALS INC. ($AUPH)

TANG KEVIN (Chief Executive Officer) bought 343,521 shares on 06/01 for an estimated $5,249,000.

Past $AUPH Insider Trades

AURINIA PHARMACEUTICALS INC. insiders have traded $AUPH 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 $AUPH stock by insiders over the last 6 months:

KEVIN TANG (Chief Executive Officer) has made 11 purchases buying 1,714,606 shares for an estimated $25,144,032 and 0 sales.

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.

PROTHENA CORP PUBLIC LTD CO ($PRTA)

SCULLY WILLIAM P bought 50,000 shares on 06/02 for an estimated $471,300.

Past $PRTA Insider Trades

PROTHENA CORP PUBLIC LTD CO insiders have traded $PRTA 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 $PRTA stock by insiders over the last 6 months:

WILLIAM P SCULLY has made 2 purchases buying 150,000 shares for an estimated $1,452,600 and 0 sales.

BAOZUN INC. ($BZUN)

Wu Junhua (Chief Strategy Officer) bought 20,000 shares on 06/01 for an estimated $54,000.

Past $BZUN Insider Trades

BAOZUN INC. insiders have traded $BZUN stock on the open market 23 times in the past 6 months. Of those trades, 23 have been purchases and 0 have been sales.

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

WENBIN QIU (Chief Executive Officer) has made 15 purchases buying 175,750 shares for an estimated $467,040 and 0 sales.
JUNHUA WU (Chief Strategy Officer) has made 8 purchases buying 140,842 shares for an estimated $355,978 and 0 sales.

HUB CYBER SECURITY LTD. ($HUBC)

HRT FINANCIAL LP bought 619,931 shares on 06/01 for an estimated $30,376.

Past $HUBC Insider Trades

HUB CYBER SECURITY LTD. insiders have traded $HUBC stock on the open market 6 times in the past 6 months. Of those trades, 3 have been purchases and 3 have been sales.

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

FINANCIAL LP HRT has made 3 purchases buying 1,634,754 shares for an estimated $108,090 and 3 sales selling 1,646,004 shares for an estimated $731,357.

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