Waste Management, Inc.
Waste Management, Inc. (WM) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · WM · as of Sep 30, 2025
Ownership Breakdown
2,233
Institutional Holders
▼ 64 vs Q2
$76.68B
Total Inst. Value
▲ $2.42B vs Q2
401.58M
Shares Outstanding
freeFloat 99.76%
319.53M
13F Shares Held
▼ 5.80M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
WM largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC refuse systems | 38.44M | 9.55% | 9.55% | $8.49T | Nov 7, 2025 | ▲ 774.3K |
BLACKROCK, INC. refuse systems | 29.76M | 7.39% | 7.39% | $6.57T | Nov 12, 2025 | ▼ 170.3K |
BILL & MELINDA GATES FOUNDATION TRUST refuse systems | 28.93M | 7.19% | 7.19% | $6.39T | Nov 14, 2025 | ▼ 3.30M |
STATE STREET CORP refuse systems | 17.11M | 4.25% | 4.25% | $3.78T | Nov 14, 2025 | ▼ 1.33M |
GEODE CAPITAL MANAGEMENT, LLC refuse systems | 8.88M | 2.20% | 2.20% | $1.96T | Nov 12, 2025 | ▲ 228.4K |
MORGAN STANLEY refuse systems | 7.62M | 1.89% | 1.89% | $1.68T | May 27, 2026 | ▲ 109.9K |
AMERIPRISE FINANCIAL INC refuse systems | 5.67M | 1.41% | 1.41% | $1.25T | Nov 14, 2025 | ▲ 277.3K |
PARNASSUS INVESTMENTS, LLC refuse systems | 5.61M | 1.39% | 1.39% | $1.24T | Oct 24, 2025 | ▼ 99.4K |
NORTHERN TRUST CORP refuse systems | 3.95M | 98.22% | 98.22% | $873.28B | Nov 14, 2025 | ▲ 11.7K |
WELLS FARGO & COMPANY/MN refuse systems | 3.74M | 92.82% | 92.82% | $825.27B | Nov 13, 2025 | ▲ 69.4K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
24
Increased
+7.42M shares0
New Positions
first time holders26
Decreased
−8.32M shares0
Sold Out
fully exitedNet shares change (top 50)
895.7K
+7.42M / −8.32M
Net new holders
-2
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
WM insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
10
Buy transactions
2
Sell transactions
5.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Dalby Marcel SVP Bus Optimiz & Collection | May 20, 2026 | Award | 2,257 | — | — | 5.9K | Form 4 ↗ |
Hemmer Tara J. EVP & Chief Operating Officer | May 20, 2026 | Award | 2,544 | — | — | 81.5K | Form 4 ↗ |
Morris John J President | May 20, 2026 | Tax Withhold | 566 | $220.49 | $124.8K | 99.4K | Form 4 ↗ |
PLUMMER WILLIAM B director | May 15, 2026 | Award | 861 | $220.71 | $190.0K | 4.0K | Form 4 ↗ |
MENKE SEAN E director | May 15, 2026 | Award | 861 | $220.71 | $190.0K | 861 | Form 4 ↗ |
Sylvester Maryrose director | May 15, 2026 | Award | 861 | $220.71 | $190.0K | 5.9K | Form 4 ↗ |
MAZZARELLA KATHLEEN M director | May 15, 2026 | Award | 1,314 | $220.71 | $290.0K | 18.3K | Form 4 ↗ |
HOLT VICTORIA M director | May 15, 2026 | Award | 861 | $220.71 | $190.0K | 23.9K | Form 4 ↗ |
Gluski Andres director | May 15, 2026 | Award | 861 | $220.71 | $190.0K | 18.4K | Form 4 ↗ |
Chinn Bruce E. director | May 15, 2026 | Award | 861 | $220.71 | $190.0K | 3.7K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Waste Management, Inc. (WM) is primarily owned by institutional investors, who hold approximately 79.6% of total shares outstanding. Company insiders own approximately 0.24%, while retail and public investors account for the remaining 20.19%.
The largest institutional shareholder of Waste Management, Inc. is VANGUARD GROUP INC, holding approximately 38.44 million shares — equal to 9.55% of outstanding shares — as of September 30, 2025.
A total of 2,233 institutional investors currently hold WM stock, with a combined institutional value of approximately $76.68 billion as of the most recent 13F filing period.
Frequently asked questions
WM ownershipWaste Management, Inc. (WM) is primarily owned by institutional investors, who hold approximately 79.6% of shares. The largest shareholder is VANGUARD GROUP INC with a 9.55% stake. Company insiders hold 0.24%. Data sourced from SEC Form 13F as of September 30, 2025.