Here’s a summary of the most significant insider buying and selling activities reported for Friday, November 1, 2025.
Top Insider Buys
Blackstone Inc. (NYSE:BX) saw Director James Breyer purchase 13,170 shares of the company’s common stock on October 29, 2025. The transaction occurred at a weighted average price of $151.23 per share, totaling approximately $1.99 million. The prices paid ranged from $150.775 to $151.68. Following this acquisition, Breyer now directly owns 55,006 shares of Blackstone Inc.
General American Investors Co Inc (NYSE:GAM) Chairman Spencer Davidson purchased 2,657 shares of the company’s 5.95% Preferred Stock at $24.98 per share on October 31, 2025. The transaction totaled $66,371. Following this purchase, Davidson directly holds 120,504 shares of 5.95% Preferred Stock, 1,422,966 shares of Common Stock, and 4,548 shares of Common Stock in an IRA account. Indirectly, he holds 11,487 shares of Common Stock and 5,000 shares of 5.95% Preferred Stock through various trusts. GAM, with a $1.48 billion market cap, offers a 7.1% dividend yield and has maintained dividend payments for 54 consecutive years.
Farmers & Merchants Bancorp Inc (NASDAQ:FMAO) Director Steven J. Planson acquired 2,329 shares of common stock at $23.42 per share on October 30, 2025. The purchase totaled $54,545. Following the transaction, Planson directly owns 22,706.7 shares, with an additional 4,118.41 shares held in trust and 3,011.49 shares owned by his spouse.
Amrize Ltd (EXCHANGE:AMRZ) Chairman and CEO Jan Philipp Jenisch purchased shares worth $5.8 million on October 30, 2025. The transactions occurred at prices between $52.64 and $52.88. Specifically, Jenisch acquired 55,000 shares directly at $52.64 per share. The $29.1 billion market cap company reports earnings per share of $2.14 and annual revenue of $11.6 billion. The stock currently trades at $51.46, below the CEO’s purchase price.
Avantor, Inc. (NYSE:AVTR) Director Gregory L Summe purchased 100,000 shares of common stock at $11.25 per share on October 30, 2025. The transaction totaled $1,125,000. Following this purchase, Summe directly owns 58,111 shares and indirectly holds an additional 300,000 shares through a trust.
Top Insider Sells
CoreWeave, Inc. (NASDAQ:CRWV) saw Magnetar Financial LLC and affiliated entities sell shares worth approximately $29.1 million on October 30, 2025. The sales occurred at prices ranging from $134.61 to $135.36. The transactions involved multiple blocks of shares, including 12,377 shares at $134.61, 1,871 shares at $135.36, and several other blocks at $134.69. CoreWeave, currently trading at $133.71, has experienced a 249.83% return over the past year and has a market capitalization of approximately $68 billion.
CoreWeave, Inc. (EXCHANGE:CRWV) also saw Magnetar Financial LLC and related entities sell $25.9 million worth of Class A Common Stock on October 31, 2025. The sales occurred at prices ranging from $134.01 to $137.86 per share. The transactions involved shares held by various Magnetar Funds, including Magnetar Longhorn Fund LP, Magnetar SC Fund Ltd, and several others.
CoreWeave, Inc. (CRWV) Chief Strategy Officer and Director Brian M Venturo sold 226,950 shares of Class A Common Stock on October 29, 2025. The sales, executed under a pre-arranged 10b5-1 trading plan, occurred at prices ranging from $135.1188 to $139.7397, totaling approximately $38.7 million. The shares were sold indirectly through West Clay Capital LLC, where Venturo serves as the managing member.
Innsuites Hospitality Trust (EXCHANGE:IHT) President, CEO, and Chairman James F. Wirth sold 10,000 shares on October 29, 2025, at a price of $16,032.0 per share, totaling $160,320,000. Following the transaction, Wirth directly owns 6,126,796 shares of the company.
InnsSuites Hospitality Trust (NASDAQ:IHT) President and CEO James F. Wirth sold an additional 12,500 shares on October 30, 2025, at a price of $18,960.0 per share, with the transaction totaling $237 million. Following this sale, Wirth directly owns 6,114,296 shares, with the sold shares previously held indirectly by his spouse.
Why Insider Trading Matters
Tracking insider transactions provides valuable insights for investors as company executives and directors often have unique perspectives on their organization’s prospects. When insiders put their own money into company stock, it may signal confidence in future performance, while significant selling could raise questions about internal outlook. However, insiders sell for various reasons unrelated to company performance, including diversification, tax planning, or personal financial needs. Rather than viewing insider activity as a definitive buy or sell signal, investors should consider it as one piece of a broader investment analysis framework.
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