Comparable stake leader
BlackRock, Inc.
SEC ownership of CASELLA WASTE SYSTEMS INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000911177.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
30 Jun 2026
- Public ticker
- CWST on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
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
- 0000911177
- Issuer location
- Rutland, VT
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 CASELLA WASTE SYSTEMS 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
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
30 Jun 2026
13D/G
13F
3/4/5
Lead comparable stake: 14%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 14%.
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 BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
14%
VANGUARD GROUP INC
11%
WASATCH ADVISORS LP
5.6%
Conestoga Capital Advisors, LLC
5.5%
Edmond R. Coletta
0.22%
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 |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
Company
|
14%
|
$874,479,914
8,928,731 shares
|
$0 | 31 Dec 2025 |
| VANGUARD GROUP INC |
13D/G
The Vanguard Group
|
11%
|
$643,945,020
6,574,893 shares
|
$0 | 31 Dec 2025 |
| WASATCH ADVISORS LP |
13D/G
13F
Company
|
5.6%
|
$342,458,670
3,531,594 shares
|
+$92,060,797 | 30 Jun 2026 |
| Conestoga Capital Advisors, LLC |
13D/G
13F
Conestoga Capital Advisors · Company
|
5.5%
|
$396,150,082
3,432,843 shares
|
$0 | 31 Dec 2024 |
| Edmond R. Coletta |
3/4/5
PRESIDENT & CEO
|
0.22%
|
$12,620,428
140,118 shares
|
-$2,297,809 | 19 May 2026 |
| Shelley E. Sayward |
3/4/5
SENIOR VP & GENERAL COUNSEL
|
0.04%
|
$2,488,812
28,369 shares
|
-$191,151 | 12 Mar 2026 |
| Emily K. Nagle |
3/4/5
Director
|
0.04%
|
$1,789,036
22,549 shares
|
-$99,748 | 08 Jun 2026 |
| Paul Ligon |
3/4/5
SR VP of Sustainable Growth
|
0.03%
|
$1,889,804
18,374 shares
|
— | 04 Aug 2025 |
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 selling over the last 12 months. Net value: -$3,927,284.
Buys
$0
Insiders: 0
Sells
$3,927,284
Insiders: 8
Net
-$3,927,284
Shares: -42,588
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 42,588
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 14,805 | $0 | $1,321,349 | -$1,321,349 |
| 3-6 | 0 | 19,405 | $0 | $1,782,732 | -$1,782,732 |
| 6-9 | 0 | 7,000 | $0 | $700,490 | -$700,490 |
| 9-12 | 0 | 1,378 | $0 | $122,712 | -$122,712 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 20 reporting-owner rows connected to CASELLA WASTE SYSTEMS INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
20
Largest Forms 3/4/5 holder
Edmond R. Coletta
Net 12M change
-$3,927,284
Latest report
20 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Edmond R. Coletta | President & Ceo | $12,620,428 | -$2,297,809 | -15% | Filing P/S | 19 May 2026 |
| Edwin D. Johnson | President & Coo | $9,485,544 | Mixed | 03 Jun 2022 | ||
| Douglas R. Casella | VICE CHAIRMAN, BD OF DIRECTORS, Director | $8,460,896 | Mixed | 04 Jun 2026 | ||
| James F. Callahan Jr. | Director | $6,398,822 | Mixed | 02 Jun 2021 | ||
| Christopher Heald | Vp & Chief Accounting Officer | $3,024,685 | Mixed | 15 Mar 2022 | ||
| John W. Casella | Director | $2,498,336 | -$865,989 | -26% | Mixed | 01 Jun 2026 |
| Shelley E. Sayward | Senior Vp & General Counsel | $2,488,812 | -$191,151 | -7.1% | Filing P/S | 12 Mar 2026 |
| Paul Ligon | SR VP of Sustainable Growth | $1,889,804 | Mixed | 04 Aug 2025 | ||
| Emily K. Nagle | Director | $1,789,036 | -$99,748 | -5.3% | Mixed | 08 Jun 2026 |
| Michael K. Burke | Director | $1,256,824 | -$201,826 | -14% | Mixed | 04 Jun 2026 |
| Joseph Doody | Director | $1,042,765 | Mixed | 04 Jun 2026 | ||
| Sean Steves | Sr VP & COO of SW Ops | $823,125 | -$137,374 | -14% | Filing P/S | 12 Mar 2026 |
| Michael L. Battles | Director | $816,329 | Mixed | 04 Jun 2026 | ||
| Rose M. Kirk | Director | $780,308 | Mixed | 04 Jun 2026 | ||
| Kevin J. Drohan | Vp & Chief Accounting Officer | $690,698 | -$74,892 | -9.8% | Filing P/S | 12 Mar 2026 |
| Gary Sova | Director | $650,905 | Mixed | 04 Jun 2026 | ||
| William P. Hulligan | Director | $647,493 | Mixed | 04 Jun 2026 | ||
| Bradford John Helgeson | Executive VP and CFO | $644,113 | -$58,495 | -8.3% | Filing P/S | 12 Mar 2026 |
| Christopher Alan Rains | Sr. VP & Chief Revenue Officer | $91,116 | Mixed | 16 Mar 2026 | ||
| Ribar Damian Andrew | Executive VP and COO | Mixed | 20 Jul 2026 |
Recent insider transactions for CASELLA WASTE SYSTEMS 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Emily K. Nagle | CWST | Class A Common Stock | Gift | -3.43% | -600 | 16,902 | 08 Jun 2026 | Direct | ||
| Douglas R. Casella | CWST | Class A Common Stock | Award | 1.71% | 1,793 | 106,641 | 04 Jun 2026 | Direct | ||
| Michael K. Burke | CWST | Class A Common Stock | Award | 12.8% | 1,793 | 15,841 | 04 Jun 2026 | Direct | ||
| Michael L. Battles | CWST | Class A Common Stock | Award | 21.1% | 1,793 | 10,289 | 04 Jun 2026 | Direct | ||
| Emily K. Nagle | CWST | Class A Common Stock | Award | 11.4% | 1,793 | 17,502 | 04 Jun 2026 | Direct | ||
| Gary Sova | CWST | Class A Common Stock | Award | 28% | 1,793 | 8,204 | 04 Jun 2026 | Direct | ||
| William P. Hulligan | CWST | Class A Common Stock | Award | 28.2% | 1,793 | 8,161 | 04 Jun 2026 | Direct | ||
| Joseph Doody | CWST | Class A Common Stock | Award | 15.8% | 1,793 | 13,143 | 04 Jun 2026 | Direct | ||
| Rose M. Kirk | CWST | Class A Common Stock | Award | 22.3% | 1,793 | 9,835 | 04 Jun 2026 | Direct | ||
| John W. Casella | CWST | Class B Common Stock | Gift | 22.5% | 30,800 | 167,800 | 01 Jun 2026 | by SLAT 2 | ||
| John W. Casella | CWST | Class B Common Stock | Gift | -53.9% | -30,800 | 26,300 | 01 Jun 2026 | By Spouse | ||
| John W. Casella | CWST | Class B Common Stock | Gift | 27% | 36,200 | 170,200 | 01 Jun 2026 | By SLAT | ||
| John W. Casella | CWST | Class B Common Stock | Gift | -21.8% | -36,200 | 129,800 | 01 Jun 2026 | Direct | ||
| Michael K. Burke | CWST | Class A Common Stock | Sale | -14.1% | $201,826 | $87.56 | -2,305 | 14,048 | 26 May 2026 | Direct |
| Edmond R. Coletta | CWST | Class A Common Stock | Sale | -8.19% | $1,119,523 | $89.56 | -12,500 | 140,118 | 19 May 2026 | Direct |
| Douglas R. Casella | CWST | Class B Common Stock | Gift | 30.5% | 40,000 | 171,000 | 18 Mar 2026 | By SLAT | ||
| Douglas R. Casella | CWST | Class B Common Stock | Gift | 24.1% | 33,000 | 170,000 | 17 Mar 2026 | By SLAT 2 | ||
| Christopher Alan Rains | CWST | Class A Common Stock | Award | 989 | 989 | 16 Mar 2026 | Direct | |||
| John W. Casella | CWST | Class A Common Stock | Sale | -5.36% | $153,071 | $87.77 | -1,744 | 30,795 | 16 Mar 2026 | Direct |
| Edmond R. Coletta | CWST | Class A Common Stock | Sale | -0.64% | $86,756 | $87.81 | -988 | 152,618 | 16 Mar 2026 | Direct |
| Kevin J. Drohan | CWST | Class A Common Stock | Sale | -1.07% | $7,457 | $87.73 | -85 | 7,873 | 16 Mar 2026 | Direct |
| Sean Steves | CWST | Class A Common Stock | Sale | -2.06% | $17,297 | $87.80 | -197 | 9,375 | 16 Mar 2026 | Direct |
| Shelley E. Sayward | CWST | Class A Common Stock | Sale | -1.26% | $31,758 | $87.73 | -362 | 28,369 | 16 Mar 2026 | Direct |
| Bradford John Helgeson | CWST | Class A Common Stock | Sale | -5.23% | $35,531 | $87.73 | -405 | 7,342 | 16 Mar 2026 | Direct |
| John W. Casella | CWST | Class A Common Stock | Sale | -2.87% | $86,728 | $90.06 | -963 | 32,539 | 12 Mar 2026 | Direct |
| John W. Casella | CWST | Class A Common Stock | Award | 19.7% | 5,513 | 33,502 | 12 Mar 2026 | Direct | ||
| Edmond R. Coletta | CWST | Class A Common Stock | Sale | -0.24% | $33,855 | $89.80 | -377 | 153,606 | 12 Mar 2026 | Direct |
| Edmond R. Coletta | CWST | Class A Common Stock | Award | 4.69% | 6,892 | 153,983 | 12 Mar 2026 | Direct | ||
| Kevin J. Drohan | CWST | Class A Common Stock | Sale | -0.69% | $4,924 | $89.52 | -55 | 7,958 | 12 Mar 2026 | Direct |
| Kevin J. Drohan | CWST | Class A Common Stock | Award | 7.38% | 551 | 8,013 | 12 Mar 2026 | Direct | ||
| Sean Steves | CWST | Class A Common Stock | Sale | -1% | $8,702 | $89.71 | -97 | 9,572 | 12 Mar 2026 | Direct |
| Shelley E. Sayward | CWST | Class A Common Stock | Sale | -0.45% | $11,573 | $89.71 | -129 | 28,731 | 12 Mar 2026 | Direct |
| Shelley E. Sayward | CWST | Class A Common Stock | Award | 6.08% | 1,654 | 28,860 | 12 Mar 2026 | Direct | ||
| Bradford John Helgeson | CWST | Class A Common Stock | Award | 55.2% | 2,756 | 7,747 | 12 Mar 2026 | Direct | ||
| Sean Steves | CWST | Class A Common Stock | Sale | -11% | $111,375 | $92.89 | -1,199 | 9,669 | 27 Feb 2026 | Direct |
| Kevin J. Drohan | CWST | Class A Common Stock | Sale | -8.3% | $62,512 | $92.61 | -675 | 7,462 | 27 Feb 2026 | Direct |
| Edmond R. Coletta | CWST | Class A Common Stock | Sale | -2.53% | $357,184 | $93.70 | -3,812 | 147,091 | 27 Feb 2026 | Direct |
| John W. Casella | CWST | Class A Common Stock | Sale | -19.4% | $626,191 | $93.10 | -6,726 | 27,989 | 27 Feb 2026 | Direct |
| Shelley E. Sayward | CWST | Class A Common Stock | Sale | -5.52% | $147,820 | $92.91 | -1,591 | 27,206 | 27 Feb 2026 | Direct |
| Sean Steves | CWST | Class A Common Stock | Award | 46.2% | 3,433 | 10,868 | 26 Feb 2026 | Direct | ||
| Kevin J. Drohan | CWST | Class A Common Stock | Award | 43.1% | 2,452 | 8,137 | 26 Feb 2026 | Direct | ||
| Edmond R. Coletta | CWST | Class A Common Stock | Award | 6.95% | 9,810 | 150,903 | 26 Feb 2026 | Direct | ||
| John W. Casella | CWST | Class A Common Stock | Award | 204.1% | 23,299 | 34,715 | 26 Feb 2026 | Direct | ||
| Shelley E. Sayward | CWST | Class A Common Stock | Award | 19% | 4,598 | 28,797 | 26 Feb 2026 | Direct | ||
| Douglas R. Casella | CWST | Class A Common Stock | Gift | -3.59% | -3,900 | 104,848 | 08 Dec 2025 | Direct | ||
| Edmond R. Coletta | CWST | Class A Common Stock | Sale | -4.73% | $700,490 | $100.07 | -7,000 | 141,093 | 08 Dec 2025 | Direct |
| Edmond R. Coletta | CWST | Class A Common Stock | Gift | -1.33% | -2,000 | 148,093 | 08 Dec 2025 | Direct | ||
| Bradford John Helgeson | CWST | Class A Common Stock | Sale | -4.99% | $22,964 | $87.65 | -262 | 4,991 | 07 Nov 2025 | Direct |
| Emily K. Nagle | CWST | Class A Common Stock | Gift | -6.71% | -1,130 | 15,709 | 05 Nov 2025 | Direct | ||
| Emily K. Nagle | CWST | Class A Common Stock | Sale | -16.5% | $99,748 | $89.38 | -1,116 | 5,647 | 04 Nov 2025 | See Footnote |
* marks a reported price that did not pass the local price check.