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Financial transparency data from public SEC filings.

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

ATR

Superinvestors

Institutional investors holding ATR

Consensus →
InvestorFundWeightSharesValueQuarter
Alex RoepersAtlantic Investment Management1.05%34,500$1.1M2002Q4
Meridian / ArrowMarkMeridian Contrarian Fund0.16%94,900$6.3M2014Q4
Bill NygrenOakmark Select Fund – Harris Associates0.01%5,328$208K2008Q3
Ruane CunniffSequoia Fund0.00%7,600$381K2011Q2
Kenneth FisherFisher Asset Management0.00%22,757$2.9M2026Q1
First Eagle Investment ManagementFirst Eagle Investment Management0.00%14,129$1.2M2017Q4

Congressional Activity

Congressional data coming soon

Insider Activity

31

Total trades

$4.6M

Volume

17

Buys

13

Sells

Last trade: Jun 4, 2026

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.