Christine O'Brien, the head of investment stewardship at activist investment firm Elliott Management, has resigned after almost 12 years with the firm, according to a report by Reuters, citing two unnamed sources familiar with the matter. 

Taconic Capital Advisors, an $11 billion, New York- and London-based hedge fund firm focused on event-driven, multi strategy investments, has appointed Nate Kempner, a principal and co-chair of the firm’s Investment Committee, as co-chief investment officer, alongside Taconic’s co-founder, Frank Brosens. 

Goldman Sachs has lost another trader to a hedge fund firm, with Rick Vaatsra leaving the bank's London office this month, to join multi-strategy major Millennium Management as a senior portfolio manager based in London.

Blaine Hurty has been promoted to managing director and head of capital introduction at Clear Street, a New York-based independent, non-bank prime broker, having originally joined the company's cap intro team as a managing director in October 2022.

Alpine Global Management, an investment firm specialising in event-driven trading across global markets, has appointed John Ripley and Arthur Ayzerov as co-chief investment officers, with responsibility for overseeing all investment activities across the firm.

Big name hedge fund firms including Citadel, Balyasny and Millennium are tapping Singapore's top performing commodities traders as they look to take advantage of the opportunities presented by erratic commodity prices, and in particular oil, according to a report by eFinancial Careers.

Marathon Asset Management, a global credit investment manager offering hedge funds, managed accounts, single-client funds and collateralised loan, and debt obligation vehicles, has named Ed Cong, who joined the firm 17 years ago, as its newest partner. 

Both Goldman Sachs and Citi have lost senior macro traders to hedge fund firms recently, with Gary Stein joining Millennium from Goldman and Citi's Karl Abdelnour jumping ship to join Schonfeld, according to a report by eFinancial Careers.

Appomattox Advisory, Inc (Appomattox), a New York-based Outsourced Chief Investment Officer (OCIO) firm founded in 2005, has appointed Grange Johnson as deputy CIO, focusing on portfolio construction, manager research and business development. 

Nickel Digital Asset Management, a London-based crypto hedge find firm founded by former Goldman Sachs executive director Anatoly Crachilov, has been building out its quant division recently with the addition of two new recruits, according to a report by eFinancial Careers.