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George Soros is bailing on Janus Capital's Quantum Partners.
According to CNBC, Soros has pulled $500 million from an investment in Janus with Gross.
That money was in Janus' Quantum Partners fund, a private investment vehicle run by the investor. It's separate from the Janus Capital Unconstrained Fund, which Gross also runs.
That comes less than one year from Soros' decision to invest with Gross.
Gross' acrimonious departure from bond investing titan PIMCO came just over a year ago, in part fueled by disagreement over an interest rate call by the famed investor in 2011.
The beef between PIMCO and Gross has not subsided in the year following his departure; Gross sued PIMCO earlier this year for $200 million.
Business Insider contacted Janus Capital and could not immediately reach a representative.
The Wall Street Journal reported on the news late Monday morning.
And, here's the market's immediate reaction. It wasn't good news for Janus Capital shares.
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Janus Capital stock dropped on news it lost George Soros as a client in one fund.