Mason Capital Management’s Acceleron Pharma XLRN Stock Holding History

Mason Capital Management’s Portfolio XLRN Stock Details XLRN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2021 Q4	–	Sell	-10,000	Closed	-$1.72M	–	39
2021 Q3	$1.72M	Buy	+10,000	New	+$1.31M	0.13%	15

Mason Capital Management's XLRN Position: Q4 2021 in Review

Mason Capital Management sold out of Acceleron Pharma (XLRN) in Q4 2021, closing a stake of 10,000 shares — an estimated $1.72M sold.

Mason Capital Management first reported a position in XLRN in Q3 2021 and held it in 1 quarter. The position peaked at $1.72M in Q3 2021. 1 fund tracked by Wall St. Rank holds XLRN as of Q4 2021.

Mason Capital Management reported no remaining Acceleron Pharma position as of Q4 2021 after selling out during the quarter.
Mason Capital Management sold 10,000 Acceleron Pharma shares in Q4 2021, an estimated $1.72M.
Mason Capital Management first reported a position in Acceleron Pharma in Q3 2021 and held it in 1 quarter.
Mason Capital Management's Acceleron Pharma position peaked at $1.72M in Q3 2021.
1 fund tracked by Wall St. Rank held Acceleron Pharma as of Q4 2021.

Based on Mason Capital Management's 13F filing for Q4 2021, filed 14 Feb 2022.