Hedge funds Citadel and DE Shaw significantly reduced their holdings in Nvidia, while Renaissance Technologies and Marshall Wace increased their positions, ahead of the recent stock market downturn, according to a report by the Financial Times.

Trian Fund Management, the US-based activist hedge fund firm led by Nelson Peltz, has cut its stake in British consumer goods giant Unilever, selling approximately 3.8m shares for nearly £181m ($232m), according to a report by Reuters.

Scion Asset Management, the hedge fund firm led by Michael ‘The Big Short’ Burry, increased its investment in Chinese e-commerce and retail giant Alibaba during the second quarter of the year, according to the firm’s latest 13F filings.

Sachem Head Capital Management, the hedge fund firm led by Scott Ferguson, significantly increased its investment in CVS Health Corp during the second quarter amid a 25% drop in the US healthcare company’s stock price, according to a report by Reuters.

Activist hedge fund firm Elliott Management is intensifying its challenge to the management of Southwest Airlines by launching a proxy battle aimed at securing 10 of the 15 board seats at the airline, according to a report by ABC News.

With the largest sell-off in US equities since the pandemic now behind them, trend-following quant funds are gearing up to re-enter the stock market, and the normalisation process could be quicker than usual, according to a report by Bloomberg.

Baupost Group, the hedge fund firm led by value investing expert Seth Klarman, has significantly reduced its stake in Alphabet, the parent company of Google, while expanding its holdings in the health insurance sector with a new investment in Humana, according to a report by Morningstar.

Super Micro Computer has replaced Elon Musk’s EV-maker Tesla as the most crowded security in the Americas, a position it has held since May, according to the latest Shortside Crowdedness Report from Hazeltree.