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© 2026 DataHeimdall. All rights reserved.Data sourced from SEC EDGAR public filings.
Insider Trades

ALXN

Superinvestors

Institutional investors holding ALXN

Consensus →
InvestorFundWeightSharesValueQuarter
Bill MillerMiller Value Partners1.49%388,380$42.0M2019Q4
Viking Global InvestorsViking Global Investors0.14%201,756$36.5M2015Q2
Meridian / ArrowMarkMeridian Contrarian Fund0.11%25,755$4.0M2014Q2
First Eagle Investment ManagementFirst Eagle Investment Management0.02%50,000$4.5M2020Q1
Richard PzenaPzena Investment Management0.00%3,430$630K2021Q2
Kenneth FisherFisher Asset Management0.00%3,001$469K2020Q4
Dodge & CoxDodge & Cox0.00%1,820$253K2016Q1

Congressional Activity

Congressional data coming soon

Insider Activity

No insider trades in the last 90 days

Insider Tradeslast 90 days

No insider trades in the last 90 days.

Congressional Tradeslast 90 days

Congressional trade data is being sourced and will appear here shortly.