Ackman's Pershing Square takes stake in Agilent Technologies

Bill Ackman's hedge fund Pershing Square Capital Management is adding a stake in Agilent Technologies to the portfolio.

Pershing Square disclosed on Monday a 2.9 million-share stake in the laboratory instrument and software company in an SEC filing.

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The filing from the September quarter was amended after having been filed in November.

Pershing Square said the investment had been omitted through a request for confidential treatment that was withdrawn on Dec. 9.

Bill Ackman, chief executive officer and portfolio manager at Pershing Square Capital Management, speaks during the SALT conference in Las Vegas, Nevada, U.S. May 18, 2017. REUTERS/Richard Brian - RC1367565E20

The Agilent stake was is valued at $246 million based on Monday's closing price.

Ticker Security Last Change Change %
A AGILENT TECHNOLOGIES INC. 137.47 -1.70 -1.22%

Agilent's stock gained nearly 4 percent to $84.68 in after-hours trading.

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Agilent was a part of Hewlett-Packard until being spun off in 1999.