🕵️ Waste Connections, Inc. ($WCN)
SEC insider & ownership activity, last 12 months · CIK 1318220 · every row links its SEC filing
Over the last 12 months insiders sold $6.5M against $7.6M of open-market buying. Ronald J. Mittelstaedt bought $7.6M in discretionary trades (May). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
1 buyer, $7.6M (1 lots) · 10 sellers, $6.5M (16 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Ronald J. Mittelstaedt | 1 | $7.6M | 0 | – | May 12, 2026 |
| Edward E. Guillet | 0 | – | 1 | $1.6M | Oct 28, 2025 |
| Shea Patrick James | 0 | – | 1 | $1.2M | Jun 5, 2026 |
| Eric Hansen | 0 | – | 1 | $989K | Apr 30, 2026 |
| Nielsen III Robert | 0 | – | 6 | $679K | Aug 19, 2026 |
| Cloninger Robert Michael | 0 | – | 2 | $481K | Jul 28, 2026 |
| James and Michelle Little REV LIV TR | 0 | – | 1 | $427K | Apr 27, 2026 |
| Philip Rivard | 0 | – | 1 | $416K | Aug 18, 2026 |
| Susan Netherton | 0 | – | 1 | $290K | Aug 13, 2026 |
| Craft Jason | 0 | – | 1 | $235K | Jun 5, 2026 |
| Derek Tan | 0 | – | 1 | $201K | Mar 4, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Vanguard Capital Management | 7.8% | 13G | Apr 28, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Philip Rivard | $416K | Aug 18, 2026 | filing ↗ |
| Susan Netherton | $290K | Aug 13, 2026 | filing ↗ |
| Robert M. Cloninger | $472K | Jul 28, 2026 | filing ↗ |
| Jason J. Craft | $235K | Jun 5, 2026 | filing ↗ |
| Patrick J. Shea | $1.2M | Jun 5, 2026 | filing ↗ |
| Eric Hansen | $984K | Apr 27, 2026 | filing ↗ |
| James and Michelle Little REV LIV TR | $427K | Apr 27, 2026 | filing ↗ |
| Derek Tan | $201K | Mar 4, 2026 | filing ↗ |
| Edward E. Guillet | $1.6M | Oct 28, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Other events (8.01) | Aug 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 7, 2026 | filing ↗ |
| Material agreement (1.01) | Aug 4, 2026 | filing ↗ |
| New financial obligation (2.03) | Aug 4, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 4, 2026 | filing ↗ |
| Material agreement (1.01) | Jul 27, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 27, 2026 | filing ↗ |
| Earnings (2.02) | Jul 22, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 22, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 15, 2026 | filing ↗ |
| Other events (8.01) | May 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 15, 2026 | filing ↗ |
| Earnings (2.02) | Apr 22, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 22, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 18, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 18, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 16, 2026 | filing ↗ |
| New financial obligation (2.03) | Mar 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 16, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 5, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 5, 2026 | filing ↗ |
| Earnings (2.02) | Feb 11, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 11, 2026 | filing ↗ |
| Earnings (2.02) | Oct 21, 2025 | filing ↗ |
| Reg FD disclosure (7.01) | Oct 21, 2025 | filing ↗ |