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Here’s a summary of the most significant insider buying and selling activities disclosed on Monday, November 24, 2025.
Top Insider Buys
Hanwha Aerospace Co., Ltd. made substantial investments in NextDecade Corp (NASDAQ:NEXT), acquiring 767,107 shares worth approximately $4.49 million over two days. The ten percent owner purchased 347,630 shares on November 20 at prices ranging from $6.17 to $6.36, followed by 419,477 shares on November 21 at prices between $5.57 and $5.85.
Alumis Inc. (NASDAQ:ALMS) Director Srinivas Akkaraju purchased 125,743 shares at a weighted average price of $7.20 on November 20, for a total transaction value of $905,349. Following this acquisition, Akkaraju now holds 643,260 shares through Samsara Opportunity Fund, L.P. and 4,491,731 shares through Samsara BioCapital, L.P. The purchase comes as ALMS shares have surged nearly 31% over the past week.
NEXTNAV INC. (NASDAQ:NN) saw investor Joseph Samberg purchase 58,457 shares on November 21 at a weighted average price of $11.86, totaling approximately $693,300. Following the transaction, Samberg’s trust now holds 9,745,600 shares, with additional indirect ownership through various entities including JDS TMT, LP, The Joe & Sandy Samberg Foundation, Inc., and others.
Biglari Holdings Inc (NYSE:BH) ten percent owner Lion Fund, L.P. acquired shares worth approximately $799,287 on November 24. The purchases included 213 shares of Class A common stock at about $1,406.27 each and 1,819 shares of Class B common stock at roughly $274.74 each. Following these transactions, Lion Fund directly owns 128,227.7 shares of Class A and 1,324,401 shares of Class B stock.
Inhibikase Therapeutics, Inc. (NASDAQ:IKT) received a significant investment from Sands Capital Life Sciences Pulse Fund II, L.P., along with Sands Capital Alternatives, LLC and Frank M. Sands, who collectively purchased 2,068,965 shares at $1.45 per share on November 21. The $3 million transaction increased their direct ownership to 13,018,965 shares.
Top Insider Sells
Reddit, Inc. (NASDAQ:RDDT) Chief Operating Officer Jennifer L. Wong sold shares worth $20.1 million on November 24. The sales were executed at prices ranging from $186.24 to $195.18, with a total of 69,938 shares of Class A Common Stock sold. Additionally, on November 20, 38,113 shares were withheld by the company to cover tax obligations, valued at approximately $7.16 million.
Cloudflare, Inc. (NYSE:NET) President and Board Co-Chair Michelle Zatlyn sold 80,005 shares of Class A Common Stock between November 20 and 24, at prices ranging from $186.40 to $202.63, resulting in a total transaction value of $16.67 million. During the same period, Zatlyn also acquired 76,923 shares through the conversion of Class B Common Stock.
Palantir Technologies Inc (NYSE:PLTR) Director Stephen Andrew Cohen executed a series of sales totaling $56.7 million on November 20 and 21. The transactions involved multiple blocks of shares sold at prices ranging from $153.43 to $173.41.
Palantir Technologies Inc (NYSE:PLTR) Chief Technology Officer and Executive Vice President Sankar Shyam sold shares worth $27.5 million on November 20 and 21. The sales were conducted across numerous transactions at prices ranging from $153.43 to $173.41, coinciding with the stock trading at $162.25 after rising 151% over the past year.
Palantir Technologies Inc (NYSE:PLTR) CEO Alexander C. Karp sold shares valued at $66 million on November 20 and 21. On November 20, Karp first converted 359,325 shares of Class B Common Stock to Class A Common Stock before selling them across multiple transactions at prices ranging from $153.43 to $173.41.
Why Monitor Insider Trading
Tracking insider buying and selling activities provides investors with valuable insights into how company executives and major shareholders view their own stock’s prospects. Insider purchases often signal confidence in the company’s future performance, while significant sales might indicate profit-taking or diversification rather than lack of confidence. By staying informed about these transactions, investors can gain additional context for their investment decisions, though insider activity should be just one of many factors considered in a comprehensive investment strategy.
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