ALXN

Alexion Pharmaceuticals Inc

ALXN

Delisted

ALXN was delisted on the 20th of July, 2021.

747 hedge funds and large institutions have $31.2B invested in Alexion Pharmaceuticals Inc in 2021 Q1 according to their latest regulatory filings, with 83 funds opening new positions, 242 increasing their positions, 311 reducing their positions, and 147 closing their positions.

2025 Q2 2025 Q1 2024 Q4 2024 Q1 2023 Q4 2023 Q3 2023 Q2 2023 Q1 2022 Q4 2022 Q3 2022 Q2 2022 Q1 2021 Q4 2021 Q3 2021 Q2 2021 Q1 2020 Q4 2020 Q3 2020 Q2 2020 Q1 2019 Q4 2019 Q3 2019 Q2 2019 Q1 2018 Q4 2018 Q3 2018 Q2 2018 Q1 2017 Q4 2017 Q3 2017 Q2 2017 Q1 2016 Q4 2016 Q3 2016 Q2 2016 Q1 2015 Q4 2015 Q3 2015 Q2 2015 Q1 2014 Q4 2014 Q3 2014 Q2 2014 Q1 2013 Q4 2013 Q3 2013 Q2

Holders

747

Holders Change

-70

Holders Change %

-8.57%

% of All Funds

13.16%

Holding in Top 10

Holding in Top 10 Change

+24

Holding in Top 10 Change %

+52.17%

% of All Funds

1.23%

New

Increased

242

Reduced

311

Closed

147

Calls

$202M

Puts

$267M

Net Calls

-$64.3M

Net Calls Change

-$187M

Top Buyers

1	HI 1 HBK Investments Dallas, Texas	$875M
2	FCM 2 Farallon Capital Management San Francisco, California	$883M
3	DKCM 3 Davidson Kempner Capital Management New York	$621M
4	4 Barclays London, United Kingdom	$547M
5	5 Citigroup New York	$502M

Top Sellers

1	1 ClearBridge Investments New York	$0
2	BBA 2 Baker Bros. Advisors New York	$611M
3	3 Fidelity Investments Boston, Massachusetts	$539M
4	4 Janus Henderson Group London, United Kingdom	$98.3M
5	5 JPMorgan Chase & Co New York	$346M

#	Name	Market Value	Shares	Shares Change	Shares Change %
26	N 26 Natixis Paris, France	$253M	1,656,500	+1,220,007	+280%
27	UOC 27 UBS O'Connor Chicago, Illinois	$240M	1,566,773	+1,017,152	+185%
28	PAMU 28 Pictet Asset Management (UK) London, United Kingdom	$239M	1,564,739	-383,611	-20%
29	PAM 29 PSquared Asset Management Zurich, Switzerland	$226M	1,480,423	+1,480,423	New
30	30 AllianceBernstein Nashville, Tennessee	$225M	1,472,777	+37,168	+3%
31	31 Legal & General Group London, United Kingdom	$221M	1,442,966	-23,976	-2%
32	32 Manulife (Manufacturers Life Insurance) Canada, Ontario, Canada	$216M	1,414,293	-1,390,053	-50%
33	PC 33 Paulson & Co New York	$214M	1,400,000	+1,150,000	+460%
34	34 Swedbank Stockholm, Sweden	$213M	1,391,278	-746,983	-35%
35	CS 35 Credit Suisse Zurich, Switzerland	$210M	1,371,621	-378,840	-22%
36	36 Dimensional Fund Advisors Austin, Texas	$201M	1,315,940	-4,337	-0.3%
37	BG 37 Bellevue Group Kuesnacht, Switzerland	$200M	1,308,728	-84,300	-6%
38	WCMNY 38 Westchester Capital Management (New York) Valhalla, New York	$200M	1,305,536	+514,904	+65%
39	MF 39 Magnetar Financial Evanston, Illinois	$197M	1,289,848	+109,195	+9%
40	CA 40 Capitolis Advisors New York	$190M	1,241,621	+1,228,851	+9,623%
41	41 Capstone Investment Advisors New York	$180M	1,177,499	+979,455	+495%
42	42 Invesco Atlanta, Georgia	$174M	1,139,063	-9,251	-0.8%
43	43 D.E. Shaw & Co New York	$165M	1,079,085	+245,535	+29%
44	44 Bank of Nova Scotia Toronto, Ontario, Canada	$164M	1,072,579	+1,031,241	+2,495%
45	45 UBS AM Chicago, Illinois	$163M	1,067,481	-208,890	-16%
46	SGCM 46 Sand Grove Capital Management London, United Kingdom	$163M	1,067,391	+797,391	+295%
47	PHS 47 PFM Health Sciences San Francisco, California	$162M	1,059,631	+78,500	+8%
48	AAM 48 Alpine Associates Management Palm Beach, Florida	$160M	1,045,700	+557,100	+114%
49	49 Charles Schwab San Francisco, California	$158M	1,033,583	-53,350	-5%
50	OP 50 Omni Partners London, United Kingdom	$153M	1,003,383	+836,234	+500%

Alexion Pharmaceuticals Inc ALXN

Top Buyers

Top Sellers

Alexion Pharmaceuticals Inc

ALXN