Parallax Volatility Advisers’s Alexion Pharmaceuticals ALXN Stock Holding History

Parallax Volatility Advisers’s Portfolio ALXN Stock Details ALXN Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2020 Q4	–	Sell	-10,300	Closed	-$1.18M	–	3357
2020 Q3	$1.18M	Buy	+10,300	New	+$1.11M	﹤0.01%	1927
2020 Q2	–	Sell	-800	Closed	-$72K	–	2954
2020 Q1	$72K	Sell	800 -2,800	-78%	-$275K	﹤0.01%	2201
2019 Q4	$390K	Sell	3,600 -26,800	-88%	-$2.87M	﹤0.01%	1821
2019 Q3	$2.98M	Buy	30,400 +27,400	+913%	+$3.09M	﹤0.01%	994
2019 Q2	$393K	Sell	3,000 -60,900	-95%	-$7.85M	﹤0.01%	1573
2019 Q1	$8.64M	Sell	63,900 -52,900	-45%	-$6.58M	0.01%	522
2018 Q4	$11.4M	Buy	116,800 +1,900	+2%	+$225K	0.02%	481
2018 Q3	$16M	Buy	+114,900	New	+$14.4M	0.02%	353
2017 Q3	–	Sell	-40,000	Closed	-$4.87M	–	3615
2017 Q2	$4.87M	Hold	40,000	–	–	0.01%	576
2017 Q1	$4.85M	Buy	+40,000	New	+$5.16M	0.01%	594
2016 Q3	–	Sell	-50,000	Closed	-$5.84M	–	4215
2016 Q2	$5.84M	Hold	50,000	–	–	0.01%	583
2016 Q1	$6.96M	Sell	50,000 -500	-1%	-$73.4K	0.02%	468
2015 Q4	$9.63M	Buy	50,500 +500	+1%	+$87.3K	0.02%	473
2015 Q3	$7.82M	Buy	+50,000	New	+$9.12M	0.02%	533
2014 Q2	–	Sell	-10,000	Closed	-$1.52M	–	4377
2014 Q1	$1.52M	Buy	+10,000	New	+$1.59M	0.01%	649

Other funds holding ALXN

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

BBA

Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

ClearBridge Investments New York $115B AUM 24.78% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return

Parallax Volatility Advisers's ALXN Position: Q4 2020 in Review

Parallax Volatility Advisers sold out of Alexion Pharmaceuticals (ALXN) in Q4 2020, closing a stake of 1,181 shares — an estimated $135K sold.

Parallax Volatility Advisers first reported a position in ALXN in Q1 2014 and held it in 12 quarters. The position peaked at $6.46M in Q2 2020. 825 funds tracked by Wall St. Rank hold ALXN as of Q4 2020.

Parallax Volatility Advisers reported no remaining Alexion Pharmaceuticals position as of Q4 2020 after selling out during the quarter.
Parallax Volatility Advisers sold 1,181 Alexion Pharmaceuticals shares in Q4 2020, an estimated $135K.
Parallax Volatility Advisers first reported a position in Alexion Pharmaceuticals in Q1 2014 and held it in 12 quarters.
Parallax Volatility Advisers's Alexion Pharmaceuticals position peaked at $6.46M in Q2 2020.
825 funds tracked by Wall St. Rank held Alexion Pharmaceuticals as of Q4 2020.

Based on Parallax Volatility Advisers's 13F filing for Q4 2020, filed 16 Feb 2021.