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

AMX

Superinvestors

Institutional investors holding AMX

Consensus →
InvestorFundWeightSharesValueQuarter
Chase ColemanTiger Global Management3.62%2,636,500$122.2M2008Q3
Viking Global InvestorsViking Global Investors3.46%1,203,600$63.0M2004Q4
William Von MuefflingCantillon Capital Management1.03%952,490$45.5M2007Q1
Chuck AkreAkre Capital Management0.49%500,000$10.9M2013Q2
Kenneth FisherFisher Asset Management0.08%5,332,479$62.8M2020Q1
Christopher DavisDavis Selected Advisers0.01%229,078$4.5M2013Q3
Dodge & CoxDodge & Cox0.00%162,135$2.9M2021Q3

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.