ALEXION PHARMACEUTICALS INC CO
(015351109)
Funds Reporting Holdings of ALEXION PHARMACEUTICALS INC CO according to 13F filings
| Firm Name | Shares Held / Principal Amount | Market Value | Option | Report Period | Effectiveness Date |
|---|---|---|---|---|---|
| Baker BROS Advisors LP | 8,258,068 | $1,081,642k | Jun 30, 2019 | Aug 14, 2019 | |
| Artisan Partners Limited Partnership | 5,027,064 | $658,445k | Jun 30, 2019 | Aug 9, 2019 | |
| Orbimed Advisors LLC | 1,926,085 | $252,279k | Jun 30, 2019 | Aug 14, 2019 | |
| Investec Asset Management Limited | 648,507 | $221,245k | Jun 30, 2019 | Jul 30, 2019 | |
| Renaissance Technologies LLC | 1,642,542 | $215,140k | Jun 30, 2019 | Aug 12, 2019 | |
| Cantab Capital Partners LLP | 1,378 | $193,000k | Sep 30, 2017 | Nov 14, 2017 | |
| PALO ALTO Investors LP | 1,023,780 | $134,095k | Jun 30, 2019 | Aug 14, 2019 | |
| Janus Capital Management LLC | 933,211 | $113,137k | Mar 31, 2017 | May 16, 2017 | |
| Managed Account Advisors LLC | 604,494 | $109,274k | Jun 30, 2015 | Aug 14, 2015 | |
| Polar Capital LLP | 678,592 | $88,882k | Jun 30, 2019 | Aug 14, 2019 | |
| Calamos Advisors LLC | 649,223 | $85,035k | Jun 30, 2019 | Aug 7, 2019 | |
| Candriam Luxembourg SCA | 565,233 | $73,709k | Jun 30, 2019 | Aug 1, 2019 | |
| Miller Value Partners LLC | 448,780 | $58,781k | Jun 30, 2019 | Aug 14, 2019 | |
| Tekla Capital Management LLC | 400,014 | $52,394k | Jun 30, 2019 | Aug 14, 2019 | |
| Camber Capital Management LP | 400,000 | $52,392k | Jun 30, 2019 | Aug 14, 2019 | |
| Eulav Asset Management | 262,200 | $34,343k | Jun 30, 2019 | Aug 5, 2019 | |
| 1919 Investment Counsel LLC | 193,772 | $32,132k | Sep 30, 2014 | Nov 14, 2014 | |
| Rock Springs Capital Management LP | 242,500 | $31,763k | Jun 30, 2019 | Aug 14, 2019 | |
| Signature Estate & Investment Advisors LLC | 198,002 | $25,934k | Jun 30, 2019 | Aug 1, 2019 | |
| Peregrine Capital Management LLC | 165,886 | $21,728k | Jun 30, 2019 | Jul 18, 2019 | |
| Taurus Asset Management LLC | 149,385 | $19,566k | Jun 30, 2019 | Aug 14, 2019 | |
| Adams Diversified Equity Fund Inc | 146,700 | $19,215k | Jun 30, 2019 | Jul 29, 2019 | |
| van ECK Associates Corporation | 130,965 | $17,154k | Jun 30, 2019 | Aug 7, 2019 | |
| Asset Management One Co Ltd | 127,762 | $16,734k | Jun 30, 2019 | Aug 14, 2019 | |
| Thornburg Investment Management Inc | 97,600 | $12,784k | Jun 30, 2019 | Aug 6, 2019 | |
| Clearbridge Investments LLC | 119,295 | $11,615k | Dec 31, 2018 | Feb 14, 2019 | |
| Premier Asset Management LLC | 88,210 | $11,553k | Jun 30, 2019 | Aug 7, 2019 | |
| Summit Partners Public Asset Management LLC | 85,000 | $11,133k | Jun 30, 2019 | Aug 14, 2019 | |
| FRED Alger Management Inc | 82,343 | $10,785k | Jun 30, 2019 | Aug 14, 2019 | |
| PDT Partners LLC | 79,500 | $10,413k | Jun 30, 2019 | Aug 14, 2019 | |
| Stevens Capital Management LP | 76,820 | $10,062k | Jun 30, 2019 | Jul 31, 2019 | |
| Sectoral Asset Management Inc | 73,199 | $9,588k | Jun 30, 2019 | Aug 14, 2019 | |
| ZWJ Investment Counsel Inc | 71,977 | $9,428k | Jun 30, 2019 | Jul 24, 2019 | |
| SIO Capital Management LLC | 71,521 | $9,368k | Jun 30, 2019 | Aug 14, 2019 | |
| Channing Capital Management LLC | 71,288 | $9,337k | Jun 30, 2019 | Aug 14, 2019 | |
| Origin Asset Management LLP | 69,700 | $9,129k | Jun 30, 2019 | Aug 9, 2019 | |
| Granite Investment Partners LLC | 68,127 | $8,923k | Jun 30, 2019 | Aug 7, 2019 | |
| Granite Financial Partners LLC | 68,127 | $8,923k | Jun 30, 2019 | Aug 7, 2019 | |
| Numeric Investors LLC | 73,700 | $8,814k | Dec 31, 2017 | Feb 14, 2018 | |
| Altrinsic Global Advisors LLC | 65,000 | $8,514k | Jun 30, 2019 | Aug 14, 2019 | |
| GLG LLC | 64,133 | $7,670k | Dec 31, 2017 | Feb 14, 2018 | |
| Oak Ridge Investments LLC | 57,581 | $7,542k | Jun 30, 2019 | Aug 14, 2019 | |
| Hudson BAY Capital Management LP | 55,000 | $7,204k | Jun 30, 2019 | Aug 14, 2019 | |
| Magnetar Financial LLC | 54,600 | $7,152k | Jun 30, 2019 | Aug 14, 2019 | |
| Partners Capital Investment Group LLP | 51,880 | $6,795k | Jun 30, 2019 | Aug 12, 2019 | |
| Gabelli Funds LLC | 51,000 | $6,680k | Jun 30, 2019 | Aug 2, 2019 | |
| Sterling Capital Management LLC | 50,090 | $6,561k | Jun 30, 2019 | Aug 14, 2019 | |
| Arrowgrass Capital Partners US LP | 50,000 | $6,549k | Put | Jun 30, 2019 | Aug 14, 2019 |
| Congress Asset Management Company LLP | 45,955 | $6,019k | Jun 30, 2019 | Aug 7, 2019 | |
| DSC Advisors LP | 45,000 | $5,894k | Jun 30, 2019 | Aug 14, 2019 | |
| Point72 Asset Management LP | 43,882 | $5,748k | Jun 30, 2019 | Aug 14, 2019 | |
| ICON Advisers Inc | 40,633 | $5,322k | Jun 30, 2019 | Aug 2, 2019 | |
| Salem Investment Counselors Inc | 37,950 | $4,971k | Jun 30, 2019 | Aug 14, 2019 | |
| Pacer Advisors Inc | 36,552 | $4,788k | Jun 30, 2019 | Aug 12, 2019 | |
| Tokio Marine Asset Management USA Ltd | 36,512 | $4,782k | Jun 30, 2019 | Jul 25, 2019 | |
| Stralem & Company Incorporated | 36,155 | $4,736k | Jun 30, 2019 | Jul 16, 2019 | |
| Boston Advisors LLC | 33,142 | $4,341k | Jun 30, 2019 | Jul 30, 2019 | |
| Twin Capital Management Inc | 31,200 | $4,087k | Jun 30, 2019 | Aug 1, 2019 | |
| Bridgewater Associates LP | 30,241 | $3,961k | Jun 30, 2019 | Aug 13, 2019 | |
| Systematic Financial Management LP | 29,058 | $3,806k | Jun 30, 2019 | Jul 26, 2019 | |
| Calamos Wealth Management LLC | 28,093 | $3,680k | Jun 30, 2019 | Aug 7, 2019 | |
| First Light Asset Management LLC | 26,920 | $3,526k | Jun 30, 2019 | Aug 14, 2019 | |
| Meridian Wealth Management LLC | 2,372 | $3,107k | Jun 30, 2019 | Jul 19, 2019 | |
| Panagora Asset Management Inc | 23,639 | $3,096k | Jun 30, 2019 | Aug 9, 2019 | |
| Stephens Investment Management Group LLC | 23,636 | $3,096k | Jun 30, 2019 | Aug 1, 2019 | |
| Cornercap Investment Counsel Inc | 23,505 | $3,079k | Jun 30, 2019 | Aug 14, 2019 | |
| Nippon Life Global Investors Americas Inc | 23,300 | $3,052k | Jun 30, 2019 | Jul 23, 2019 | |
| LMR Partners LLC | 22,295 | $2,920k | Jun 30, 2019 | Aug 14, 2019 | |
| Quantitative Investment Management LLC | 21,262 | $2,784k | Jun 30, 2019 | Aug 14, 2019 | |
| Verition Fund Management LLC | 21,234 | $2,781k | Jun 30, 2019 | Aug 14, 2019 | |
| Morris Capital Advisors Inc | 19,625 | $2,570k | Jun 30, 2019 | Jul 15, 2019 | |
| ODEY Asset Management LLP | 18,898 | $2,475k | Jun 30, 2019 | Aug 14, 2019 | |
| Laurion Capital Management LP | 17,929 | $2,348k | Jun 30, 2019 | Aug 13, 2019 | |
| EQIS Capital Management Inc | 17,732 | $2,323k | Jun 30, 2019 | Jul 18, 2019 | |
| IFM Investors PTY Ltd | 15,994 | $2,095k | Jun 30, 2019 | Jul 16, 2019 | |
| Tealwood Asset Management Inc | 15,792 | $2,068k | Jun 30, 2019 | Aug 6, 2019 | |
| Dupont Capital Management Corp | 15,444 | $2,023k | Jun 30, 2019 | Jul 30, 2019 | |
| Piedmont Investment Advisors Inc | 15,299 | $2,004k | Jun 30, 2019 | Aug 14, 2019 | |
| World Asset Management Inc | 14,813 | $1,940k | Jun 30, 2019 | Jul 23, 2019 | |
| Pinnacle Associates Ltd | 14,200 | $1,860k | Jun 30, 2019 | Aug 5, 2019 | |
| Altman Advisors Inc | 13,754 | $1,801k | Jun 30, 2019 | Jul 12, 2019 | |
| Richard Bernstein Advisors LLC | 13,199 | $1,728k | Jun 30, 2019 | Aug 9, 2019 | |
| Oakbrook Investments LLC | 12,225 | $1,601k | Jun 30, 2019 | Jul 18, 2019 | |
| Prelude Capital Management LLC | 11,843 | $1,551k | Jun 30, 2019 | Aug 14, 2019 | |
| Vision Capital Management Inc | 10,482 | $1,373k | Jun 30, 2019 | Jul 29, 2019 | |
| Vision Capital Management Corporation | 10,482 | $1,373k | Jun 30, 2019 | Jul 29, 2019 | |
| Patton Albertson Miller Group LLC | 12,032 | $1,323k | Jun 30, 2019 | Aug 12, 2019 | |
| Hussman Strategic Advisors Inc | 10,000 | $1,310k | Jun 30, 2019 | Jul 31, 2019 | |
| Gateway Investment Advisers LLC | 9,402 | $1,231k | Jun 30, 2019 | Jul 17, 2019 | |
| QS Investors LLC | 9,242 | $1,211k | Jun 30, 2019 | Aug 14, 2019 | |
| GLG Partners LP | 9,602 | $1,148k | Dec 31, 2017 | Feb 14, 2018 | |
| HIGH Pointe Capital Management LLC | 8,700 | $1,140k | Jun 30, 2019 | Aug 12, 2019 | |
| Schonfeld Strategic Advisors LLC | 8,678 | $1,136k | Jun 30, 2019 | Aug 14, 2019 | |
| Wilmington Funds Management Corporation | 6,440 | $1,006k | Jun 30, 2014 | Aug 13, 2014 | |
| Cambridge Investment Research Advisors Inc | 7,504 | $983k | Jun 30, 2019 | Aug 15, 2019 | |
| Gideon Capital Advisors Inc | 7,290 | $955k | Jun 30, 2019 | Aug 14, 2019 | |
| MAI Capital Management LLC | 7,061 | $925k | Jun 30, 2019 | Aug 15, 2019 | |
| Kovitz Investment Group Partners LLC | 6,068 | $794k | Jun 30, 2019 | Aug 14, 2019 | |
| Wilmington Trust Investment Management LLC | 4,900 | $766k | Jun 30, 2014 | Aug 13, 2014 | |
| Level Four Advisory Services LLC | 5,528 | $723k | Jun 30, 2019 | Aug 14, 2019 | |
| Landscape Capital Management LLC | 5,435 | $712k | Jun 30, 2019 | Aug 8, 2019 | |
| Veritable LP | 5,164 | $676k | Jun 30, 2019 | Aug 12, 2019 | |
| Weiss Multi-Strategy Advisers LLC | 5,000 | $655k | Jun 30, 2019 | Aug 14, 2019 | |
| Sentry Investment Management LLC | 4,934 | $646k | Jun 30, 2019 | Aug 12, 2019 | |
| Sentry Management Inc | 4,934 | $646k | Jun 30, 2019 | Aug 12, 2019 | |
| Grandfield & DODD LLC | 4,460 | $584k | Jun 30, 2019 | Jul 29, 2019 | |
| United Asset Strategies Inc | 11,497 | $567k | Jun 30, 2019 | Jul 31, 2019 | |
| Aristotle Atlantic Partners LLC | 4,176 | $547k | Jun 30, 2019 | Aug 13, 2019 | |
| Wetherby Asset Management | 4,077 | $534k | Jun 30, 2019 | Jul 25, 2019 | |
| Global X Management Company LLC | 4,280 | $531k | Jun 30, 2018 | Aug 16, 2018 | |
| American National Registered Investment Advisor Inc | 3,640 | $477k | Jun 30, 2019 | Aug 5, 2019 | |
| Atria Investments LLC | 4,311 | $470k | Jun 30, 2019 | Aug 26, 2019 | |
| Bienville Capital Management LLC | 3,421 | $448k | Jun 30, 2019 | Aug 14, 2019 | |
| Conning Inc | 3,390 | $444k | Jun 30, 2019 | Jul 25, 2019 | |
| Cleararc Capital Inc | 3,329 | $436k | Jun 30, 2019 | Aug 7, 2019 | |
| ETF Managers Group LLC | 3,204 | $404k | Jun 30, 2019 | Aug 14, 2019 | |
| The Colony Group LLC | 2,960 | $388k | Jun 30, 2019 | Aug 19, 2019 | |
| Pillar Pacific Capital Management LLC | 2,795 | $366k | Jun 30, 2019 | Aug 7, 2019 | |
| Advisor Partners LLC | 2,338 | $306k | Jun 30, 2019 | Jul 26, 2019 | |
| Mckinley Carter Wealth Services Inc | 2,300 | $301k | Jun 30, 2019 | Aug 2, 2019 | |
| Chicago Equity Partners LLC | 2,220 | $291k | Jun 30, 2019 | Aug 2, 2019 | |
| Miles Capital Inc | 2,059 | $270k | Jun 30, 2019 | Aug 13, 2019 | |
| Campbell & Company Investment Adviser LLC | 2,018 | $264k | Jun 30, 2019 | Jul 10, 2019 | |
| Madison Investment Holdings Inc | 1,965 | $257k | Jun 30, 2019 | Aug 13, 2019 | |
| Ziegler Capital Management LLC | 1,955 | $227k | Sep 30, 2013 | Nov 6, 2013 | |
| Driehaus Capital Management LLC | 1,565 | $205k | Jun 30, 2019 | Aug 14, 2019 | |
| OFI Advisors LLC | 1,212 | $190k | Sep 30, 2015 | Nov 16, 2015 | |
| Advantage Investment Management LLC | 1,093 | $143k | Jun 30, 2019 | Jul 30, 2019 | |
| Shine Investment Advisory Services Inc | 897 | $117k | Jun 30, 2019 | Jul 25, 2019 | |
| Prime Capital Investment Advisors LLC | 550 | $72k | Jun 30, 2019 | Aug 6, 2019 | |
| Kaizen Advisory LLC | 610 | $59k | Dec 31, 2018 | Feb 15, 2019 | |
| Capital Bank and Trust Company | 269 | $35k | Jun 30, 2019 | Aug 14, 2019 | |
| Pathstone Family Office LLC | 230 | $30k | Jun 30, 2019 | Aug 14, 2019 | |
| Maytech Global Investments LLC | 200 | $26k | Jun 30, 2019 | Aug 12, 2019 | |
| Hudock Capital Group LLC | 182 | $23k | Jun 30, 2019 | Jul 30, 2019 | |
| MARK Sheptoff Financial Planning LLC | 150 | $20k | Jun 30, 2019 | Aug 12, 2019 | |
| RPG Investment Advisory LLC | 125 | $16k | Jun 30, 2019 | Jul 10, 2019 | |
| CSAT Investment Advisory LP | 97 | $13k | Jun 30, 2019 | Aug 15, 2019 | |
| FNY Investment Advisers LLC | 100 | $13k | Jun 30, 2019 | Jul 24, 2019 | |
| Hexavest Inc | 77 | $10k | Jun 30, 2019 | Jul 10, 2019 | |
| Loring Wolcott & Coolidge Fiduciary Advisors LLP | 46 | $6k | Jun 30, 2019 | Aug 9, 2019 | |
| HOWE and Rusling Inc | 35 | $5k | Jun 30, 2019 | Aug 12, 2019 | |
| Litman Gregory Asset Management LLC | 30 | $4k | Jun 30, 2019 | Jul 31, 2019 | |
| Rational Advisors Inc | 28 | $4k | Jun 30, 2019 | Aug 8, 2019 | |
| Sonora Investment Management LLC | 20 | $3k | Jun 30, 2019 | Jul 19, 2019 | |
| James Investment Research Inc | 21 | $3k | Jun 30, 2019 | Jul 24, 2019 | |
| Hilton Capital Management LLC | 20 | $3k | Jun 30, 2019 | Aug 14, 2019 | |
| Winch Advisory Services LLC | 19 | $2k | Jun 30, 2019 | Aug 7, 2019 | |
| Kayne Anderson Rudnick Investment Management LLC | 4 | $1k | Jun 30, 2019 | Aug 14, 2019 |