We have seen 114 open market insider transactions reported today, April 16, 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.
VIVANI MEDICAL, INC. ($VANI)
Williams Gregg bought 1,587,301 shares on 04/15 for an estimated $1,999,999.
Past $VANI Insider Trades
VIVANI MEDICAL, INC. insiders have traded $VANI stock on the open market 14 times in the past 6 months. Of those trades, 14 have been purchases and 0 have been sales.
Here’s a breakdown of recent trading of $VANI stock by insiders over the last 6 months:
- GREGG WILLIAMS has made 13 purchases buying 15,297,372 shares for an estimated $19,616,666 and 0 sales.
- AARON MENDELSOHN purchased 20,000 shares for an estimated $24,600
BONK, INC. ($BNKK)
Rudy Mitchell Austin bought 31,055 shares on 04/09 for an estimated $87,575.
Past $BNKK Insider Trades
BONK, INC. insiders have traded $BNKK 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 $BNKK stock by insiders over the last 6 months:
- MITCHELL AUSTIN RUDY purchased 31,055 shares for an estimated $87,575
AC IMMUNE SA ($ACIU)
Pfeifer Andrea (Chief Executive Officer) bought 10,000 shares on 04/15 for an estimated $31,425.
Past $ACIU Insider Trades
AC IMMUNE SA insiders have traded $ACIU 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 $ACIU stock by insiders over the last 6 months:
- ANDREA PFEIFER (Chief Executive Officer) purchased 10,000 shares for an estimated $31,425
ENERGIZER HOLDINGS, INC. ($ENR)
Aqua Capital, Ltd. bought 1,643 shares on 04/14 for an estimated $31,052.
Past $ENR Insider Trades
ENERGIZER HOLDINGS, INC. insiders have traded $ENR stock on the open market 5 times in the past 6 months. Of those trades, 5 have been purchases and 0 have been sales.
Here’s a breakdown of recent trading of $ENR stock by insiders over the last 6 months:
- CAPITAL, LTD. AQUA has made 2 purchases buying 16,015 shares for an estimated $282,107 and 0 sales.
- DONAL L MULLIGAN purchased 15,000 shares for an estimated $260,999
- MARK STEPHEN LAVIGNE (President and CEO) purchased 10,000 shares for an estimated $171,100
- BENJAMIN J ANGELETTE (Chief Administrative Officer) purchased 1,000 shares for an estimated $17,140
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
