We have seen 101 open market insider transactions reported today, December 20, 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.
NAVAN, INC. ($NAVN)
Andreessen Horowitz Fund V, L.P. bought 347,600 shares on 12/17 for an estimated $4,397,140.
Past $NAVN Insider Trades
NAVAN, INC. insiders have traded $NAVN stock on the open market 19 times in the past 6 months. Of those trades, 13 have been purchases and 6 have been sales.
Here’s a breakdown of recent trading of $NAVN stock by insiders over the last 6 months:
- ILAN EZRA TWIG (Chief Technology Officer) sold 1,000,000 shares for an estimated $25,000,000
- ARIEL M. COHEN (Chairperson and CEO) has made 0 purchases and 4 sales selling 924,332 shares for an estimated $23,108,300.
- BENJAMIN A HOROWITZ has made 3 purchases buying 692,395 shares for an estimated $9,352,310 and 0 sales.
- HOROWITZ FUND V, L.P. ANDREESSEN has made 3 purchases buying 692,395 shares for an estimated $9,352,310 and 0 sales.
- HOROWITZ LSV FUND I, L.P. ANDREESSEN has made 3 purchases buying 692,395 shares for an estimated $9,352,310 and 0 sales.
- HOROWITZ LSV FUND III, L.P. ANDREESSEN has made 3 purchases buying 692,395 shares for an estimated $9,352,310 and 0 sales.
- MICHAEL ERIC SINDICICH (President) sold 231,842 shares for an estimated $5,796,050
- ANRE D WILLIAMS purchased 100,000 shares for an estimated $1,272,480
GRAN TIERRA ENERGY INC. ($GTE)
Lau Daniel bought 360,000 shares on 12/18 for an estimated $1,423,728.
Past $GTE Insider Trades
GRAN TIERRA ENERGY INC. insiders have traded $GTE stock on the open market 51 times in the past 6 months. Of those trades, 48 have been purchases and 3 have been sales.
Here’s a breakdown of recent trading of $GTE stock by insiders over the last 6 months:
- PARTNERS INVESTMENT MANAGEMENT LLC EQUINOX has made 47 purchases buying 1,283,783 shares for an estimated $5,268,541 and 0 sales.
- DANIEL LAU purchased 360,000 shares for an estimated $1,423,728
- DAVID P SMITH sold 7,750 shares for an estimated $35,495
- JIM EVANS (EVP, Corporate Services) has made 0 purchases and 2 sales selling 6,140 shares for an estimated $24,314.
HALLADOR ENERGY CO ($HNRG)
Wesley Charles Ray IV bought 20,000 shares on 12/17 for an estimated $356,576.
Past $HNRG Insider Trades
HALLADOR ENERGY CO insiders have traded $HNRG stock on the open market 17 times in the past 6 months. Of those trades, 3 have been purchases and 14 have been sales.
Here’s a breakdown of recent trading of $HNRG stock by insiders over the last 6 months:
- DAVID C HARDIE has made 0 purchases and 14 sales selling 472,062 shares for an estimated $9,208,793.
- CHARLES RAY IV WESLEY has made 3 purchases buying 53,000 shares for an estimated $912,644 and 0 sales.
HYPERION DEFI, INC. ($HYPD)
Walters Happy David bought 61,930 shares on 12/17 for an estimated $187,152.
Past $HYPD Insider Trades
HYPERION DEFI, INC. insiders have traded $HYPD 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 $HYPD stock by insiders over the last 6 months:
- HAPPY DAVID WALTERS purchased 61,930 shares for an estimated $187,152
- MICHAEL S GELTZEILER purchased 30,000 shares for an estimated $90,210
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
