Comparable stake leader
VANGUARD CAPITAL MANAGEMENT LLC
SEC ownership of Waste Connections, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001318220.
Disclosed value leader
VANGUARD CAPITAL MANAGEMENT LLC
Comparable rows
50/50
Latest evidence
30 Jun 2026
- Public ticker
- WCN on NYSE
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
VANGUARD CAPITAL MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
VANGUARD CAPITAL MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001318220
- Issuer location
- Woodbridge, Ontario, Canada
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Waste Connections, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
VANGUARD CAPITAL MANAGEME...
Comparable rows
50/50
Latest evidence
30 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 7.8%
13D/G row: VANGUARD CAPITAL MANAGEMENT LLC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 7.8%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
VANGUARD CAPITAL MANAGEMENT LLC
7.8%
Ronald J. Mittelstaedt
0.12%
Darrell W. Chambliss
0.04%
Mary Anne Whitney
0.02%
James Little
0.02%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7.8%
|
$3,233,926,019
19,908,434 shares
|
$0 | 31 Mar 2026 |
| Ronald J. Mittelstaedt |
3/4/5
President & CEO, Director
|
0.12%
|
$45,825,322
301,017 shares
|
+$7,611,750 | 12 May 2026 |
| Darrell W. Chambliss |
3/4/5
EVP & COO
|
0.04%
|
$17,090,840
92,000 shares
|
— | 06 Jun 2025 |
| Mary Anne Whitney |
3/4/5
Executive Vice President & CFO
|
0.02%
|
$10,161,920
62,435 shares
|
— | 18 Feb 2026 |
| James Little |
3/4/5
Executive VP Engineering
|
0.02%
|
$7,920,912
48,436 shares
|
-$427,168 | 27 Apr 2026 |
| Matthew Stephen Black |
3/4/5
Sr VP Chief Tax Officer
|
0.02%
|
$7,110,473
43,772 shares
|
— | 30 Jun 2026 |
| Jason Craft |
3/4/5
Executive Vice President & COO
|
0.01%
|
$5,346,712
32,915 shares
|
-$234,887 | 30 Jun 2026 |
| Patrick James Shea |
3/4/5
Exec VP, General Counsel & Sec
|
0.01%
|
$3,239,377
19,942 shares
|
-$2,114,174 | 05 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$1,091,060.
Buys
$7,611,750
Insiders: 1
Sells
$6,520,690
Insiders: 8
Net
+$1,091,060
Shares: +11,595
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 50,000
Shares: 38,405
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 50,000 | 18,732 | $7,611,750 | $2,996,026 | +$4,615,724 |
| 3-6 | 0 | 1,173 | $0 | $200,618 | -$200,618 |
| 6-9 | 0 | 11,000 | $0 | $1,905,108 | -$1,905,108 |
| 9-12 | 0 | 7,500 | $0 | $1,418,939 | -$1,418,939 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 28 reporting-owner rows connected to Waste Connections, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
28
Largest Forms 3/4/5 holder
Ronald J. Mittelstaedt
Net 12M change
+$1,091,059
Latest report
30 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Ronald J. Mittelstaedt | President & CEO, Director | $45,825,322 | +$7,611,750 | +20% | Filing P/S | 12 May 2026 |
| Worthing Jackman | President and CEO, Director | $21,151,812 | Mixed | 17 Feb 2023 | ||
| Darrell W. Chambliss | Evp & Coo | $17,090,840 | Mixed | 06 Jun 2025 | ||
| Mary Anne Whitney | Executive Vice President & CFO | $10,161,920 | Mixed | 18 Feb 2026 | ||
| James Little | Executive VP Engineering | $7,920,912 | -$427,168 | -5.1% | Mixed | 27 Apr 2026 |
| Matthew Stephen Black | Sr VP Chief Tax Officer | $7,110,473 | Mixed | 30 Jun 2026 | ||
| Jason Craft | Executive Vice President & COO | $5,346,712 | -$234,887 | -4.2% | Mixed | 30 Jun 2026 |
| David Eddie | Sr VP Performance Optimization | $5,144,712 | Mixed | 16 Feb 2024 | ||
| Patrick James Shea | Exec VP, General Counsel & Sec | $3,239,377 | -$2,114,174 | -39% | Mixed | 05 Jun 2026 |
| Robert Michael Cloninger | SR VP, Deputy General Counsel | $3,055,479 | Mixed | 18 Feb 2026 | ||
| Edward E. Guillet | Director | $2,431,430 | -$1,569,928 | -39% | Mixed | 13 Feb 2026 |
| Susan Netherton | SR VP People, Training & Dev | $2,397,454 | -$286,680 | -11% | Mixed | 18 Feb 2026 |
| Eric Hansen | Senior Vice President and CIO | $2,200,357 | -$988,925 | -31% | Filing P/S | 30 Apr 2026 |
| Susan Lee | Director | $1,955,914 | Mixed | 13 Feb 2026 | ||
| Larry Sanford Hughes | Director | $1,909,980 | Mixed | 16 Feb 2024 | ||
| Domenic Pio | SR VP Operations | $1,492,498 | Mixed | 30 Jun 2026 | ||
| Aaron Bradley | Sr Vp Performance Optimization | $1,400,882 | Mixed | 30 Jun 2026 | ||
| Michael W. Harlan | Director | $1,374,290 | Mixed | 13 Feb 2026 | ||
| David M. Hall | Sr. Vice President - Sales | $723,089 | Mixed | 19 Feb 2022 | ||
| Robert Nielsen III | SR VP Operations | $661,130 | -$698,311 | -51% | Filing P/S | 14 May 2026 |
Recent insider transactions for Waste Connections, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Domenic Pio | WCN | Common Shares | Other | 1.04% | 95 | 9,188 | 30 Jun 2026 | Direct | ||
| Jason Craft | WCN | Common Shares | Other | 0.16% | 54 | 32,915 | 30 Jun 2026 | Direct | ||
| Aaron Bradley | WCN | Common Shares | Other | 0.49% | 42 | 8,624 | 30 Jun 2026 | Direct | ||
| Matthew Stephen Black | WCN | Common Shares | Other | 0.04% | 16 | 43,530 | 30 Jun 2026 | Direct | ||
| Patrick James Shea | WCN | Common Shares | Gift | -0.51% | -100 | 19,622 | 09 Jun 2026 | Direct | ||
| Patrick James Shea | WCN | Common Shares | Gift | -0.08% | -15 | 19,722 | 08 Jun 2026 | Direct | ||
| Patrick James Shea | WCN | Common Shares | Sale | -27.5% | $1,171,915 | $156.26 | -7,500 | 19,737 | 05 Jun 2026 | Direct |
| Jason Craft | WCN | Common Shares | Sale | -4.37% | $234,887 | $156.59 | -1,500 | 32,861 | 05 Jun 2026 | Direct |
| Robert Nielsen III | WCN | Common Shares | Sale | -10.5% | $77,780 | $155.56 | -500 | 4,250 | 14 May 2026 | Direct |
| Robert Nielsen III | WCN | Common Shares | Sale | -5.75% | $43,790 | $151.00 | -290 | 4,750 | 13 May 2026 | Direct |
| Robert Nielsen III | WCN | Common Shares | Sale | -6.27% | $51,561 | $153.00 | -337 | 5,040 | 12 May 2026 | Direct |
| Ronald J. Mittelstaedt | WCN | Common Shares | Purchase | 19.9% | $7,611,750 | $152.24 | 50,000 | 301,017 | 12 May 2026 | Direct |
| Eric Hansen | WCN | Common Shares | Sale | -31% | $988,925 | $164.82 | -6,000 | 13,350 | 30 Apr 2026 | Direct |
| James Little | WCN | Common Shares | Sale | -7.04% | $427,168 | $163.98 | -2,605 | 34,395 | 27 Apr 2026 | Direct |
| Daniel L. Florness | WCN | Common Shares | Tax liability | -53.6% | -178 | 154 | 01 Apr 2026 | Direct | ||
| Daniel L. Florness | WCN | Common Shares | Options Exercise | 332 | 332 | 01 Apr 2026 | Direct | |||
| Daniel L. Florness | WCN | Restricted Share Units | Options Exercise | -50.1% | -332 | 331 | 01 Apr 2026 | Direct | ||
| Daniel L. Florness | WCN | Restricted Share Units | Award | 663 | 663 | 01 Apr 2026 | Direct | |||
| Daniel L. Florness | WCN | Deferred Share Units | Award | 419 | 419 | 01 Apr 2026 | Direct | |||
| Derek Tan | WCN | Common Shares | Sale | -45.5% | $200,618 | $171.03 | -1,173 | 1,404 | 04 Mar 2026 | Direct |
| Mary Anne Whitney | WCN | Common Shares | Tax liability | -0.9% | -566 | 62,435 | 18 Feb 2026 | Direct | ||
| Mary Anne Whitney | WCN | Common Shares | Options Exercise | 2.33% | 1,436 | 63,001 | 18 Feb 2026 | Direct | ||
| Mary Anne Whitney | WCN | Restricted Share Units | Options Exercise | -100% | -1,436 | 0 | 18 Feb 2026 | Direct | ||
| Patrick James Shea | WCN | Common Shares | Tax liability | -1.78% | -494 | 27,237 | 18 Feb 2026 | Direct | ||
| Patrick James Shea | WCN | Common Shares | Options Exercise | 4.74% | 1,255 | 27,731 | 18 Feb 2026 | Direct | ||
| Patrick James Shea | WCN | Restricted Share Units | Options Exercise | -100% | -1,255 | 0 | 18 Feb 2026 | Direct | ||
| Philip Rivard | WCN | Common Shares | Tax liability | -7.23% | -252 | 3,234 | 18 Feb 2026 | Direct | ||
| Philip Rivard | WCN | Common Shares | Options Exercise | 22.5% | 640 | 3,486 | 18 Feb 2026 | Direct | ||
| Philip Rivard | WCN | Restricted Share Units | Options Exercise | -100% | -640 | 0 | 18 Feb 2026 | Direct | ||
| Robert Nielsen III | WCN | Common Shares | Tax liability | -5.55% | -316 | 5,377 | 18 Feb 2026 | Direct | ||
| Robert Nielsen III | WCN | Common Shares | Options Exercise | 16.4% | 801 | 5,693 | 18 Feb 2026 | Direct | ||
| Robert Nielsen III | WCN | Restricted Share Units | Options Exercise | -100% | -801 | 0 | 18 Feb 2026 | Direct | ||
| Susan Netherton | WCN | Common Shares | Tax liability | -1.67% | -250 | 14,730 | 18 Feb 2026 | Direct | ||
| Susan Netherton | WCN | Common Shares | Options Exercise | 4.43% | 635 | 14,980 | 18 Feb 2026 | Direct | ||
| Susan Netherton | WCN | Restricted Shares Units | Options Exercise | -100% | -635 | 0 | 18 Feb 2026 | Direct | ||
| Ronald J. Mittelstaedt | WCN | Common Shares | Tax liability | -0.14% | -346 | 251,017 | 18 Feb 2026 | Direct | ||
| Ronald J. Mittelstaedt | WCN | Common Shares | Options Exercise | 0.35% | 878 | 251,363 | 18 Feb 2026 | Direct | ||
| Ronald J. Mittelstaedt | WCN | Restricted Share Units | Options Exercise | -100% | -878 | 0 | 18 Feb 2026 | Direct | ||
| James Little | WCN | Common Shares | Tax liability | -1.29% | -482 | 37,000 | 18 Feb 2026 | Direct | ||
| James Little | WCN | Common Shares | Options Exercise | 3.38% | 1,224 | 37,482 | 18 Feb 2026 | Direct | ||
| James Little | WCN | Restricted Share Units | Options Exercise | -100% | -1,224 | 0 | 18 Feb 2026 | Direct | ||
| Eric Hansen | WCN | Common Shares | Tax liability | -1.51% | -297 | 19,350 | 18 Feb 2026 | Direct | ||
| Eric Hansen | WCN | Common Shares | Options Exercise | 3.99% | 754 | 19,647 | 18 Feb 2026 | Direct | ||
| Eric Hansen | WCN | Restricted Share Units | Options Exercise | -100% | -754 | 0 | 18 Feb 2026 | Direct | ||
| Jason Craft | WCN | Common Shares | Tax liability | -0.96% | -332 | 34,361 | 18 Feb 2026 | Direct | ||
| Jason Craft | WCN | Common Shares | Options Exercise | 2.49% | 842 | 34,693 | 18 Feb 2026 | Direct | ||
| Jason Craft | WCN | Restricted Share Units | Options Exercise | -100% | -842 | 0 | 18 Feb 2026 | Direct | ||
| Robert Michael Cloninger | WCN | Common Shares | Tax liability | -1.7% | -250 | 14,477 | 18 Feb 2026 | Direct | ||
| Robert Michael Cloninger | WCN | Common Shares | Options Exercise | 4.51% | 635 | 14,727 | 18 Feb 2026 | Direct | ||
| Robert Michael Cloninger | WCN | Restricted Share Units | Options Exercise | -100% | -635 | 0 | 18 Feb 2026 | Direct |
* marks a reported price that did not pass the local price check.