Citadel founder and CEO Ken Griffin is set to meet New York State Governor Kathy Hochul on Thursday, as tensions continue to build over proposed tax changes targeting high-value second homes in New York City, according to a report by

Activist hedge fund Starboard Value has taken a sizeable stake in software observability group Dynatrace and is pressing management to unlock greater shareholder value through higher margins and more aggressive capital returns, according to a report by Reuters.

Bill Ackman’s Pershing Square has raised $5bn through its combined initial public offering, advancing a long-term plan to reshape the hedge fund manager into a permanent capital investment platform inspired by Berkshire Hathaway, according to a report by Bloomberg.

Spirit Airlines’ efforts to secure a $500m US rescue financing package have hit a roadblock, with key creditors – including hedge fund giant Citadel – resisting proposed terms, according to a report by Bloomberg News.

Hedge funds dominated demand for Contemporary Amperex Technology Co Ltd’s $5bn share placement, with short covering playing a key role as traders moved to unwind bearish bets on the battery maker’s Hong Kong-listed stock, according to a report by Bloomberg.

Dynatrace Inc shares climbed more than 6% in after-hours trading following reports that activist investor Starboard Value LP has taken a position in the software company and is encouraging it to better position itself around the growth of artificial intelligence,

Hedge funds have been using the recent rally in US equities to reduce risk and scale back positioning, according to a report by Bloomberg citing a client not from traders on the prime brokerage desk at Goldman Sachs Group Inc.

Short interest in US life insurance stocks has surged sharply over the past year as investors increasingly question the sector’s exposure to private credit markets, according to a report by Reuters citing analysis of date from ORTEX.