Two firms—Legg Mason (LM) and American Century Investments—both reported assets under management that showed assets growing, and in one case, reaching an all-time high.

American Century Investments reported that it surpassed its all-time AUM record, with $125 billion in assets as of Sept. 13. The previous record was $122.4 billion, set on March 24, 2000.

The firm also recently tied its all-time record of 14 consecutive quarters of positive net investment, and with the end of the 3rd quarter approaching will probably set a new record of 15 consecutive quarters, said firm spokesman Chris Doyle.

Since new CEO Jonathan Thomas joined the company in April 2007, American Century has been seeking to diversify by attracting institutional clients from around the globe and decrease the company’s reliance on U.S. retail customers. Also, last July the Canadian Imperial Bank of Commerce bought a 41% stake in American Century—previously owned by JPMorgan Chase & Co.—for $848 million.

Baltimore-based Legg Mason reported it had amassed AUM of $639.2 billion as of the end of last month. The August totals reflected a $1.1 billion redemption from “an enhanced cash, low-fee mandate within fixed income.”

Legg Mason’s AUM news comes as the firm deals with the departure of CEO Mark Fetting and a potential battle with hedge fund manager Nelson Peltz of Trian Fund Management.

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