Twin Tree Management
ALXN

Twin Tree Management’s Alexion Pharmaceuticals ALXN Stock Holding History

Twin Tree Management’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
Q3 		– Sell
-10,900
Closed -$1.22M – 1694
2020
Q2 		$1.22M Hold
10,900
– – 0.01% 1003
2020
Q1 		$979K Buy
+10,900
New +$1.07M ﹤0.01% 866
2019
Q4 		– Sell
-31,500
Closed -$3.08M – 1544
2019
Q3 		$3.08M Hold
31,500
– – 0.01% 595
2019
Q2 		$4.13M Sell
31,500
-108,600
-78% -$14M 0.02% 501
2019
Q1 		$18.9M Sell
140,100
-9,500
-6% -$1.18M 0.1% 186
2018
Q4 		$14.6M Buy
+149,600
New +$17.7M 0.09% 235
2018
Q3 		– Sell
-4,800
Closed -$596K – 1365
2018
Q2 		$596K Sell
4,800
-15,700
-77% -$1.83M ﹤0.01% 865
2018
Q1 		$2.29M Sell
20,500
-16,800
-45% -$2.01M 0.02% 498
2017
Q4 		$4.46M Buy
37,300
+5,800
+18% +$706K 0.03% 415
2017
Q3 		$4.42M Buy
+31,500
New +$4.28M 0.04% 405
2017
Q2 		– Sell
-34,700
Closed -$4.21M – 1198
2017
Q1 		$4.21M Buy
+34,700
New +$4.47M 0.04% 381
2016
Q1 		– Sell
-8,200
Closed -$1.56M – 1562
2015
Q4 		$1.56M Buy
+8,200
New +$1.43M 0.03% 490
2015
Q3 		– Sell
-14,100
Closed -$2.55M – 1556
2015
Q2 		$2.55M Buy
+14,100
New +$2.43M 0.06% 334
2015
Q1 		– Sell
-4,200
Closed -$777K – 1359
2014
Q4 		$777K Sell
4,200
-2,800
-40% -$519K 0.02% 671
2014
Q3 		$1.16M Sell
7,000
-1,400
-17% -$230K 0.03% 533
2014
Q2 		$1.31M Sell
8,400
-39,900
-83% -$6.3M 0.03% 517
2014
Q1 		$7.35M Sell
48,300
-2,000
-4% -$318K 0.15% 153
2013
Q4 		$6.68M Buy
+50,300
New +$6.04M 0.16% 108

Other funds holding ALXN

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
FCM
Farallon Capital Management San Francisco, California $17.5B AUM 50.95% 1-Year Est. Return
HI
HBK Investments Dallas, Texas $9.85B AUM 55.6% 1-Year Est. Return
PCM
Pentwater Capital Management Naples, Florida $19.3B AUM 58.13% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return
DKCM
Davidson Kempner Capital Management New York $7.33B AUM 56.47% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Twin Tree Management's ALXN Position: Q1 2021 in Review

Twin Tree Management sold out of Alexion Pharmaceuticals (ALXN) in Q1 2021, closing a stake of 36,182 shares — an estimated $5.65M sold.

Twin Tree Management first reported a position in ALXN in Q4 2013 and held it in 20 quarters. The position peaked at $15.2M in Q1 2020. 752 funds tracked by Wall St. Rank hold ALXN as of Q1 2021.

  • Twin Tree Management reported no remaining Alexion Pharmaceuticals position as of Q1 2021 after selling out during the quarter.
  • Twin Tree Management sold 36,182 Alexion Pharmaceuticals shares in Q1 2021, an estimated $5.65M.
  • Twin Tree Management first reported a position in Alexion Pharmaceuticals in Q4 2013 and held it in 20 quarters.
  • Twin Tree Management's Alexion Pharmaceuticals position peaked at $15.2M in Q1 2020.
  • 752 funds tracked by Wall St. Rank held Alexion Pharmaceuticals as of Q1 2021.

Based on Twin Tree Management's 13F filing for Q1 2021, filed 17 May 2021.