Skip to main content

Alexion Pharmaceuticals, Inc.

ALXNDelisted Jul 21, 2021
Industry
Pharmaceutical Preparations
SEC CIK
0000899866

Alexion Pharmaceuticals, Inc. was delisted on Jul 21, 2021; its insiders filed their last Form 4 on Jul 23, 2021; 711 institutions reported holding it in 13F filings for Q2 2021, worth $39.1B in total; superinvestors Soros Fund Management and Maverick Capital held it.

13F holders, Q1 2021

Institutional positions in Alexion Pharmaceuticals, Inc. as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
755
No complete 13F data for Q4 2020
Shares held
204.6M
No complete 13F data for Q4 2020
Total value
$31.3B
No complete 13F data for Q4 2020

Holders and value by quarter

Institutions reporting ALXN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2021: 755 institutions
Q1 2021: 755 institutionsQ2 2021: 711 institutionsQ3 2021: 7 institutionsQ4 2021: 2 institutionsQ1 2022: 1 institutionQ2 2022: 1 institutionQ3 2022: 1 institutionQ4 2022: 1 institutionQ1 2023: 1 institutionQ2 2023: 1 institutionQ3 2023: 1 institutionQ4 2023: 1 institutionQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 1 institutionQ1 2025: 0 institutionsQ2 2025: 1 institutionQ3 2025: 1 institutionQ4 2025: 1 institutionQ1 2026: 2 institutionsQ2 2026: 0 institutions
Value heldQ1 2021: $31.3B
Q1 2021: $31.3BQ2 2021: $39.1BQ3 2021: $823.0KQ4 2021: $14.0KQ1 2022: $13.0KQ2 2022: $13.0KQ3 2022: $16.0KQ4 2022: $13.0KQ1 2023: $13.0KQ2 2023: $13.6KQ3 2023: $10.4KQ4 2023: $8.83KQ1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $924.0KQ1 2025: $0Q2 2025: $5.52KQ3 2025: $5.79KQ4 2025: $5.40KQ1 2026: $2.16MQ2 2026: $0
Institutions holding ALXN and their total value by quarter
QuarterHoldersValue
Q2 20260$0
Q1 20262$2.16M
Q4 20251$5.40K
Q3 20251$5.79K
Q2 20251$5.52K
Q1 20250$0
Q4 20241$924.0K
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20231$8.83K
Q3 20231$10.4K
Q2 20231$13.6K
Q1 20231$13.0K
Q4 20221$13.0K
Q3 20221$16.0K
Q2 20221$13.0K
Q1 20221$13.0K
Q4 20212$14.0K
Q3 20217$823.0K
Q2 2021711$39.1B
Q1 2021755$31.3B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Alexion Pharmaceuticals, Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding ALXN in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc19,568,983$2.99B0.08%––
BlackRock Inc.17,550,295$2.68B0.08%––
State Street Corp9,877,534$1.51B0.09%––
Farallon Capital Management, L.L.C.5,775,000$883.1M4.59%––
HBK Investments L P5,725,000$875.4M10.32%––
Pentwater Capital Management LP4,289,244$655.9M7.60%––
Adage Capital Partners GP, L.L.C.4,242,379$648.7M1.32%––
Davidson Kempner Capital Management LP4,064,176$621.1M6.24%––
Baker Bros. Advisors LP3,993,312$610.6M2.65%––
Geode Capital Management, LLC3,969,950$605.5M0.09%––
Barclays PLC3,578,376$547.2M0.53%––
FMR LLC3,528,087$539.5M0.05%––
Renaissance Technologies LLC3,328,121$508.9M0.63%––
Citigroup Inc3,282,272$501.9M0.48%––
Northern Trust Corp2,710,339$414.4M0.08%––
LSV Asset Management2,599,382$397.5M0.68%––
Millennium Management LLC2,552,539$390.3M0.55%––
Citadel Advisors LLC2,503,172$382.8M0.40%––
Deutsche Bank AG2,279,545$348.6M0.19%––
JPMorgan Chase & Co2,264,381$346.2M0.05%––
Norges Bank2,223,092$339.9M0.08%––
Sculptor Capital LP2,022,374$309.2M2.74%––
Franklin Resources Inc1,890,669$289.1M0.12%––
Bank of New York Mellon Corp1,813,666$277.3M0.06%––
Morgan Stanley1,800,193$275.3M0.04%––
Natixis1,656,500$253.3M0.83%––
UBS Oconnor LLC1,566,773$239.6M3.46%––
Pictet Asset Management Ltd1,564,739$239.3M0.29%––
PSquared Asset Management AG1,480,423$226.4M19.57%––
Alliancebernstein L.P.1,472,777$225.2M0.10%––
Legal & General Group Plc1,442,966$220.6M0.08%––
Manufacturers Life Insurance Company, The1,414,293$216.3M0.19%––
Paulson & Co. Inc.1,400,000$214.1M4.92%––
Swedbank AB1,391,278$212.7M0.44%––
Credit Suisse AG1,371,621$209.7M0.15%––
Dimensional Fund Advisors LP1,315,940$201.1M0.07%––
Bellevue Group AG1,308,728$200.1M2.12%––
Westchester Capital Management, LLC1,305,536$199.6M5.95%––
Magnetar Financial LLC1,289,848$197.2M1.90%––
Capitolis Advisors LLC1,241,621$189.9M3.28%––
Capstone Investment Advisors, LLC1,177,499$180.1M5.42%––
Invesco Ltd.1,139,063$174.2M0.05%––
D. E. Shaw & Co., Inc.1,079,085$165.0M0.20%––
Bank of Nova Scotia1,072,579$164.0M0.32%––
UBS Asset Management Americas Inc1,067,481$163.2M0.07%––
Sand Grove Capital Management LLP1,067,391$163.2M15.95%––
PFM Health Sciences, LP1,059,631$162.0M5.64%––
Alpine Associates Management Inc.1,045,700$159.9M4.34%––
Charles Schwab Investment Management Inc1,033,583$158.0M0.06%––
Omni Partners LLP1,003,383$153.4M7.58%––
Hudson Bay Capital Management LP1,000,522$153.0M2.16%––
DnB Asset Management AS988,883$151.2M1.10%––
Taconic Capital Advisors LP980,000$149.9M6.90%––
Bank of America Corp942,830$144.2M0.02%––
Swiss National Bank841,931$128.7M0.09%––
Melqart Asset Management (UK) Ltd830,784$127.0M6.69%––
Neuberger Berman Group LLC804,040$122.8M0.12%––
Balyasny Asset Management LLC800,344$122.4M0.74%––
Price T Rowe Associates Inc792,319$121.2M0.01%––
Parametric Portfolio Associates LLC777,992$119.0M0.07%––
Impax Asset Management Group plc772,649$118.1M0.60%––
Nuveen Asset Management, LLC752,623$115.1M0.04%––
TIG Advisors, LLC743,403$113.7M4.36%––
First Trust Advisors LP718,671$109.9M0.13%––
Sumitomo Mitsui Trust Holdings, Inc.713,967$109.2M0.07%––
Boussard & Gavaudan Investment Management LLP708,375$108.9M10.57%––
Grantham, Mayo, Van Otterloo & Co. LLC669,323$102.3M0.56%––
Goldman Sachs Group Inc661,779$101.2M0.03%––
Ruffer LLP656,688$100.4M3.07%––
Sarissa Capital Management LP650,440$99.5M9.53%––
Janus Henderson Group PLC642,821$98.3M0.04%––
HSBC Holdings PLC635,911$97.6M0.13%––
Canada Pension Plan Investment Board619,340$94.7M0.12%––
Carlson Capital L P613,391$93.8M3.50%––
Healthcare of Ontario Pension Plan Trust Fund608,104$93.0M0.23%––
Candriam Luxembourg S.C.A.610,282$91.6M0.77%––
Thompson Siegel & Walmsley LLC579,680$88.6M1.26%––
Deerfield Management Company, L.P. (Series C)579,248$88.6M1.86%––
Wells Fargo & Company566,241$86.6M0.02%––
Spring Creek Capital LLC562,923$86.1M3.72%––
Water Island Capital LLC546,445$83.6M5.10%––
Scharf Investments, LLC541,659$82.8M2.87%––
Tudor Investment Corp Et Al527,741$80.7M1.73%––
Eaton Vance Management523,971$80.1M0.12%––
California Public Employees Retirement System520,238$79.5M0.06%––
LMR Partners LLP482,025$73.7M1.84%––
Eversept Partners, LP465,983$71.3M5.84%––
Amundi Asset Management US, Inc.454,408$69.5M0.05%––
Canyon Capital Advisors LLC450,000$68.8M2.73%––
Rhumbline Advisers429,036$65.6M0.09%––
Segantii Capital Management Ltd428,814$65.6M2.86%––
California State Teachers Retirement System425,949$65.1M0.09%––
Ameriprise Financial Inc415,761$63.6M0.02%––
P Schoenfeld Asset Management LP415,168$63.5M3.91%––
State of Wisconsin Investment Board404,055$61.8M0.13%––
DLD Asset Management, LP402,124$61.5M4.25%––
Falcon Edge Capital, LP401,765$61.4M3.82%––
CIBC World Markets Corp379,366$58.0M0.37%––
National Pension Service371,413$56.8M0.12%––
Berry Street Capital Management LLP362,500$55.4M7.88%––