Gates Buys Big, NVIDIA Director Cashes Out

Bill Gates filed disclosures on 3 September showing he bought roughly $927 million worth of RSG shares between 10 August and 2 September. The purchases, spread across multiple tranches at prices around $221 to $224, added more than 4.2 million shares to his position in the waste management giant. Republic Services carries a market cap of $76 billion and very low short interest of 1.4% of free float, suggesting little bearish pressure from professional traders.

At the other end of the ledger, NVDA independent director Mark Stevens filed on 2 September disclosing sales of about $411 million in NVIDIA stock. The trades ran across 31 August and 2 September at prices near $220 to $226 per share. Stevens offloaded roughly 1.85 million shares in total. NVIDIA's short interest sits at just 1.3% of free float, so the selling is unlikely to reflect any broader concern about the stock's direction. These filings do not indicate whether a 10b5-1 pre-planned trading arrangement was in place, which would weaken the signal considerably.

ARGX also saw a cluster of insider sales. CEO Tim Van Hauwermeiren sold $21 million worth of shares on 3 September, filed on 5 September. His General Counsel and Chief Medical Officer also sold in the same window, adding another $3 million combined. Multiple executives reducing exposure at the same time is worth watching, even if individual amounts are modest relative to the company's size.

Note: EDGAR first-party Form 4 tables were unavailable in this environment. Data sourced from vendor insider records, which may not capture all US filings or 10b5-1 plan flags with full accuracy.