March 24 (Reuters) - Janus Henderson ( JHG ) said on Tuesday that Trian and General Catalyst have raised their bid to acquire the asset manager to $52 per share.

The new offer, which represents a 25% premium to Janus' unaffected stock price and is $3 per share higher than the previous bid, comes amid a high-stakes battle with Victory Capital ( VCTR ), which has maintained its pursuit of the company.

"Trian and General Catalyst have already made significant progress toward closing and have a clear path to satisfying all outstanding conditions," Janus said.

Trian, Janus' largest shareholder with ​a 20.7% stake, had on Friday raised concerns about Victory's sweetened offer.