What is the sentiment of this news? Please choose an answer from {strong negative/moderately negative/mildly negative/neutral/mildly positive/moderately positive/strong positive}.
Text: Nearly three months after revealing a stake in Netflix Inc. ( NFLX , Financial), Pershing Square leader Bill Ackman (Trades, Portfolio) disclosed earlier this week he sold out of the 3.1 million-share position following news it lost subscribers for the first time in a decade.
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