Goldman Sachs reiterates Buy on Xiaomi stock as 17 Pro Max drives sales
This article summarizes the most significant insider buying and selling activities for US stocks reported on Thursday, September 25, 2025.
Top Insider Buys:
MGT Capital Investments, Inc. (NASDAQ:MGTI) saw a substantial insider purchase by Project Nickel LLC, a ten percent owner. The company acquired a secured convertible note valued at $1,220,240,000 and 500,000,000 shares of common stock on September 22, 2025. Additionally, Project Nickel LLC converted 650,000 shares of Series D Preferred Stock into 650,000,000 shares of Common Stock. This significant investment comes despite MGTI’s challenges, including negative gross margins of -19.5% and declining revenues.
NextDecade Corp (NASDAQ:NEXT) reported insider buying activity from Hanwha Aerospace Co., Ltd., a ten percent owner. The company purchased shares of common stock in two transactions valued at $7,010,032 on September 23 and 24, 2025. The stock prices ranged from $6.9856 to $7.0193. Following these transactions, Hanwha Aerospace directly held 18,088,187 shares of NextDecade.
GCI Liberty, Inc. (NASDAQ:GLIBK) director and 10% owner John C. Malone acquired shares of Series C GCI Group Common Stock in two transactions. On September 24 and 25, 2025, Malone bought a total of 2,319 shares at $35.00 per share, totaling $81,165. After these purchases, Malone directly owns 1,220,595 shares and indirectly owns additional shares through trusts.
GLOBAL PARTNERS LP (NASDAQ:GLP) saw its General Partner, Global GP LLC, purchase 12,500 common units between September 23 and 25, 2025. The total value of these transactions amounted to $625,900, with purchase prices ranging from $49.04 to $50.91 per unit.
PhenixFIN Corp (NASDAQ:PFX) Chief Financial Officer Ellida McMillan acquired 248 shares of the company’s common stock on September 23, 2025. The shares were purchased at $47.75 each, for a total transaction value of $11,842. Following this purchase, McMillan directly owns 3,235 shares of PhenixFIN Corp.
Top Insider Sells:
Samsara Inc. (NYSE:IOT) reported significant insider selling activity. CEO Sanjit Biswas sold a total of $6.2 million in Class A Common Stock on September 23 and 24, with prices ranging from $37.5378 to $39.4434 per share. Additionally, Director and Executive Vice President, Chief Technology Officer John Bicket sold shares worth $6.57 million in multiple transactions on the same dates.
Cipher Mining Inc. (NASDAQ:CIFR) saw a group of ten-percent owners, including Bitfury Top HoldCo B.V., V3 Holding Ltd, Bitfury Holding B.V., Valerijs Vavilovs, and Bitfury Group Ltd, sell a combined total of $68.9 million worth of common stock between September 23 and 25, 2025. The sales involved multiple transactions with prices ranging from $11.87 to $15.11 per share.
Broadcom (NASDAQ:AVGO) President and CEO Tan Hock E. sold 100,000 shares of the company’s common stock on September 23, 2025, for approximately $34 million. The sales were executed in two tranches, with prices ranging from $338.83 to $340.69 per share.
General Motors (NYSE:GM) Chair and CEO Mary Barra sold a total of $46.6 million in company stock on September 23 and 24. The sales involved 777,538 shares at prices ranging from $59.90 to $60.14.
Investors should stay tuned to insider buying and selling activities as they can provide valuable insights into a company’s prospects. While insider transactions alone should not be the sole basis for investment decisions, they can offer important context when combined with other fundamental and technical analysis. Insider buying may signal confidence in a company’s future, while selling could have various motivations, including personal financial planning or concerns about a company’s outlook.
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