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

WM

WASTE MANAGEMENT INC

Superinvestors

Institutional investors holding WM

Consensus →
InvestorFundWeightSharesValueQuarter
Bill & Melinda Gates FoundationBill & Melinda Gates Foundation Trust20.06%27,642,344$6.4B2026Q1
David TepperAppaloosa Management6.52%1,535,100$29.2M2000Q2
Mason HawkinsLongleaf Partners – Southeastern Asset Management3.75%29,881,066$906.9M2005Q4
Jensen Investment ManagementJensen Investment Management2.95%651,328$149.7M2026Q1
Mairs & PowerMairs & Power Growth Fund0.94%398,240$91.5M2026Q1
Bill NygrenOakmark Select Fund – Harris Associates0.01%16,600$571K2007Q1
Dodge & CoxDodge & Cox0.01%87,480$1.5M2000Q3
Kenneth FisherFisher Asset Management0.00%9,663$2.2M2026Q1
Christopher DavisDavis Selected Advisers0.00%12,932$226K2000Q3

Congressional Activity

Congressional data coming soon

Insider Activity

4

Total trades

$425K

Volume

3

Buys

1

Sells

Last trade: May 20, 2026

Insider Tradeslast 90 days

DateInsiderTypeValue
May 20, 2026Marcel DalbyBuy–
May 15, 2026Thomas BeneBuy$190K

Congressional Tradeslast 90 days

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

May 15, 2026
Bruce E. Chinn
Buy
$190K
Apr 4, 2026Johnson VarkeySell$45K