We have seen 102 open market insider transactions reported today, October 16, 2025. 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 1,473,214 shares on 10/15 for an estimated $1,649,999.
Past $VANI Insider Trades
VIVANI MEDICAL, INC. insiders have traded $VANI stock on the open market 10 times in the past 6 months. Of those trades, 10 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 10 purchases buying 3,821,882 shares for an estimated $4,399,155 and 0 sales.
ASA GOLD & PRECIOUS METALS LTD ($ASA)
Saba Capital Management, L.P. bought 31,833 shares on 10/14 for an estimated $1,591,968.
Past $ASA Insider Trades
ASA GOLD & PRECIOUS METALS LTD insiders have traded $ASA stock on the open market 36 times in the past 6 months. Of those trades, 36 have been purchases and 0 have been sales.
Here’s a breakdown of recent trading of $ASA stock by insiders over the last 6 months:
- CAPITAL MANAGEMENT, L.P. SABA has made 36 purchases buying 1,593,568 shares for an estimated $61,369,853 and 0 sales.
SUTRO BIOPHARMA, INC. ($STRO)
MATSUI CONNIE bought 50,000 shares on 10/15 for an estimated $39,950.
Past $STRO Insider Trades
SUTRO BIOPHARMA, INC. insiders have traded $STRO 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 $STRO stock by insiders over the last 6 months:
- CONNIE MATSUI purchased 50,000 shares for an estimated $39,950
- GREGORY K. CHOW (CFO) purchased 19,750 shares for an estimated $15,997
- HANS-PETER GERBER (CHIEF SCIENTIFIC OFFICER) purchased 17,000 shares for an estimated $13,606
- JANE CHUNG (Chief Executive Officer) purchased 12,500 shares for an estimated $10,011
- DAVID PAULING (Chief Admin. Ofcr. & GC) purchased 12,504 shares for an estimated $9,993
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
