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United States Professional & Commercial Services

Casella Waste Systems Inc (CWST)

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Over the last 90 days, Casella Waste Systems Inc. has seen significant insider selling, with a net value of -$1.65 million. Executives contributed -$1.30 million to this net sell-off. The total number of insider transactions was 19, with a net of -7 insiders selling shares. The stock has experienced a 3.3% price increase over the same period.
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Ticker: CWST Exchange: NSM
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
BURKE MICHAEL K
1 sale — total 201,826 USD
Sale 26 May 2026
Value US$4,734,795.85 | Price 99.69 | Shares 49,172
Proposed sale 26 May 2026
Value US$114,057.63 | Price 436.31 | Shares 4,342
Sale 19 May 2026
Value US$441,973.49 | Price 90.07 | Shares 4,907
Sale 19 May 2026
Value US$143,370.00 | Price 90.00 | Shares 1,593
Sale 19 May 2026
Value US$534,180.00 | Price 89.03 | Shares 6,000
Proposed sale 19 May 2026
Value US$677,354.84 | Price 89.21 | Shares 7,593
Proposed sale 19 May 2026
Value US$425,633.18 | Price 86.74 | Shares 4,907
Sale 16 Mar 2026
Value US$86,756.28 | Price 87.81 | Shares 988
Proposed sale 16 Mar 2026
Value US$86,761.22 | Price 87.82 | Shares 988
Sale 16 Mar 2026
Value US$7,457.05 | Price 87.73 | Shares 85
Proposed sale 16 Mar 2026
Value US$7,457.05 | Price 87.73 | Shares 85
Sale 16 Mar 2026
Value US$17,296.60 | Price 87.80 | Shares 197
Proposed sale 16 Mar 2026
Value US$17,296.00 | Price 87.80 | Shares 197
Sale 16 Mar 2026
Value US$153,070.88 | Price 87.77 | Shares 1,744
Sale 16 Mar 2026
Value US$31,758.26 | Price 87.73 | Shares 362
Proposed sale 16 Mar 2026
Value US$31,758.00 | Price 87.73 | Shares 362
Sale 16 Mar 2026
Value US$35,530.65 | Price 87.73 | Shares 405
Proposed sale 16 Mar 2026
Value US$35,530.69 | Price 87.73 | Shares 405
Proposed sale 16 Mar 2026
Value US$153,072.96 | Price 87.77 | Shares 1,744
Sale 12 Mar 2026
Value US$33,854.60 | Price 89.80 | Shares 377
Proposed sale 12 Mar 2026
Value US$33,808.24 | Price 89.68 | Shares 377
Sale 12 Mar 2026
Value US$4,923.60 | Price 89.52 | Shares 55
Proposed sale 12 Mar 2026
Value US$4,877.65 | Price 88.68 | Shares 55
Sale 12 Mar 2026
Value US$8,701.87 | Price 89.71 | Shares 97
Proposed sale 12 Mar 2026
Value US$8,655.92 | Price 89.24 | Shares 97
Sale 12 Mar 2026
Value US$86,727.78 | Price 90.06 | Shares 963
Proposed sale 12 Mar 2026
Value US$86,681.83 | Price 90.01 | Shares 963
Sale 12 Mar 2026
Value US$11,572.59 | Price 89.71 | Shares 129
Proposed sale 12 Mar 2026
Value US$11,526.64 | Price 89.35 | Shares 129
Sale 27 Feb 2026
Value US$357,184.40 | Price 93.70 | Shares 3,812
Proposed sale 27 Feb 2026
Value US$375,800.00 | Price 93.95 | Shares 4,000
Sale 27 Feb 2026
Value US$62,511.75 | Price 92.61 | Shares 675
Proposed sale 27 Feb 2026
Value US$62,511.75 | Price 92.61 | Shares 675
Sale 27 Feb 2026
Value US$111,375.11 | Price 92.89 | Shares 1,199
Proposed sale 27 Feb 2026
Value US$111,376.62 | Price 92.89 | Shares 1,199
Sale 27 Feb 2026
Value US$147,819.81 | Price 92.91 | Shares 1,591
Proposed sale 27 Feb 2026
Value US$147,819.91 | Price 92.91 | Shares 1,591
Sale 27 Feb 2026
Value US$626,190.60 | Price 93.10 | Shares 6,726
Proposed sale 27 Feb 2026
Value US$644,115.00 | Price 93.35 | Shares 6,900
Sale 8 Dec 2025
Value US$700,490.00 | Price 100.07 | Shares 7,000
Proposed sale 8 Dec 2025
Value US$694,540.00 | Price 99.22 | Shares 7,000
Sale 7 Nov 2025
Value US$22,964.30 | Price 87.65 | Shares 262
Sale 4 Nov 2025
Value US$99,748.08 | Price 89.38 | Shares 1,116
Planned sale 4 Aug 2025
Value US$102,840.00 | Price 102.84 | Shares 1,000
Proposed sale 4 Aug 2025
Value US$102,980.00 | Price 102.98 | Shares 1,000
Planned sale 3 Jun 2025
Value US$116,980.00 | Price 116.98 | Shares 1,000
Sale 8 May 2025
Value US$2,168,807.91 | Price 119.87 | Shares 18,093
Proposed sale 8 May 2025
Value US$2,177,854.41 | Price 120.37 | Shares 18,093
Sale 6 May 2025
Value US$662,879.16 | Price 119.18 | Shares 5,562
Proposed sale 6 May 2025
Value US$662,891.00 | Price 119.18 | Shares 5,562
Planned sale 16 Apr 2025
Value US$12,032.00 | Price 120.32 | Shares 100
Planned sale 16 Apr 2025
Value US$83,734.00 | Price 119.62 | Shares 700
Planned sale 16 Apr 2025
Value US$47,464.00 | Price 118.66 | Shares 400
Planned sale 16 Apr 2025
Value US$94,120.00 | Price 117.65 | Shares 800
Proposed sale 16 Apr 2025
Value US$354,120.00 | Price 118.04 | Shares 3,000
Sale 13 Mar 2025
Value US$21,413.70 | Price 103.95 | Shares 206
Sale 13 Mar 2025
Value US$525,000.00 | Price 105.00 | Shares 5,000
Sale 13 Mar 2025
Value US$47,455.92 | Price 104.07 | Shares 456
Proposed sale 13 Mar 2025
Value US$525,000.00 | Price 105.00 | Shares 5,000
Sale 13 Mar 2025
Value US$90,158.95 | Price 104.23 | Shares 865
Sale 13 Mar 2025
Value US$20,462.39 | Price 103.87 | Shares 197
Sale 13 Mar 2025
Value US$5,931.42 | Price 104.06 | Shares 57
Sale 13 Mar 2025
Value US$20,786.00 | Price 103.93 | Shares 200
Sale 13 Mar 2025
Value US$11,246.04 | Price 104.13 | Shares 108
Sale 13 Mar 2025
Value US$5,928.00 | Price 104.00 | Shares 57
Proposed sale 12 Mar 2025
Value US$136,302.24 | Price 105.50 | Shares 1,292
Sale 12 Mar 2025
Value US$17,625.88 | Price 106.18 | Shares 166
Sale 12 Mar 2025
Value US$23,000.70 | Price 106.98 | Shares 215
Sale 12 Mar 2025
Value US$40,093.95 | Price 106.35 | Shares 377
Sale 12 Mar 2025
Value US$48,805.47 | Price 106.33 | Shares 459
Sale 12 Mar 2025
Value US$79,997.76 | Price 106.38 | Shares 752
Sale 12 Mar 2025
Value US$116,143.44 | Price 107.94 | Shares 1,076
Sale 12 Mar 2025
Value US$7,538.78 | Price 106.18 | Shares 71
Sale 12 Mar 2025
Value US$5,772.06 | Price 106.89 | Shares 54
Sale 12 Mar 2025
Value US$23,817.92 | Price 106.33 | Shares 224
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-27 2026-05-26 S Sale
3.5
BURKE MICHAEL K
Non-Executive Director
49,172 +0.3%
99.69
US$4,734,796 		49,172 +0.3% 99.69 US$4,734,796
2026-05-26 2026-05-26 PrS Proposed sale
3.5
Michael Burke

Director

Non-Executive Director
4,342
436.31
US$114,058 		4,342 436.31 US$114,058
2026-05-22 2026-05-19 S Sale
2.7
Coletta Edmond

PRESIDENT & CEO

Officer
90,476 +9.1%
468.86
US$2,530,926 		90,476 +9.1% 468.86 US$2,530,926
2026-05-22 2026-05-19 S Sale
2.7
Coletta Edmond

PRESIDENT & CEO

Officer
1,593 -1.1%
90.00
US$143,370 		1,593 -1.1% 90.00 US$143,370
2026-05-22 2026-05-19 S Sale
2.7
Coletta Edmond

PRESIDENT & CEO

Officer
6,000 -3.9%
89.03
US$534,180 		6,000 -3.9% 89.03 US$534,180
2026-05-19 2026-05-19 PrS Proposed sale
2.7
Edmond Coletta

Officer

Officer
4,907
86.74
US$425,633 		4,907 86.74 US$425,633
2026-05-19 2026-05-19 PrS Proposed sale
2.7
Coletta Edmond

Officer

Officer
7,593
89.21
US$677,355 		7,593 89.21 US$677,355
2026-03-16 2026-03-16 S Sale
2.7
Coletta Edmond

PRESIDENT & CEO

Officer
988 -0.6%
87.81
US$86,756 		988 -0.6% 87.81 US$86,756
2026-03-16 2026-03-16 S Sale
2.8
Drohan Kevin

VP & CHIEF ACCOUNTING OFFICER

Officer
85 -1.1%
87.73
US$7,457 		85 -1.1% 87.73 US$7,457
2026-03-16 2026-03-16 S Sale
3.0
Steves Sean

Sr VP & COO of SW Ops

Officer
197 -2.1%
87.80
US$17,297 		197 -2.1% 87.80 US$17,297
2026-03-16 2026-03-16 S Sale
3.0
CASELLA JOHN W
Non-Executive Director
1,744 -5.4%
87.77
US$153,071 		1,744 -5.4% 87.77 US$153,071
2026-03-16 2026-03-16 S Sale
2.3
Sayward Shelley E.

SENIOR VP & GENERAL COUNSEL

Officer
362 -1.3%
87.73
US$31,758 		362 -1.3% 87.73 US$31,758
2026-03-16 2026-03-16 S Sale
1.9
Helgeson Bradford John

Executive VP and CFO

Officer
405 -5.2%
87.73
US$35,531 		405 -5.2% 87.73 US$35,531
2026-03-16 2026-03-16 PrS Proposed sale
2.7
Coletta Edmond

Officer

Officer
988
87.82
US$86,761 		988 87.82 US$86,761
2026-03-16 2026-03-16 PrS Proposed sale
3.0
John W. Casella

Officer

Officer
1,744
87.77
US$153,073 		1,744 87.77 US$153,073
2026-03-16 2026-03-16 PrS Proposed sale
1.9
Helgeson Bradford John

Officer

Officer
405
87.73
US$35,531 		405 87.73 US$35,531
2026-03-16 2026-03-16 PrS Proposed sale
3.0
Steves Sean

Officer

Officer
197
87.80
US$17,296 		197 87.80 US$17,296
2026-03-16 2026-03-16 PrS Proposed sale
2.8
Drohan Kevin

Officer

Officer
85
87.73
US$7,457 		85 87.73 US$7,457
2026-03-16 2026-03-16 PrS Proposed sale
2.3
Sayward Shelley E.

Officer

Officer
362
87.73
US$31,758 		362 87.73 US$31,758
2026-03-16 2026-03-12 S Sale
2.7
Coletta Edmond

PRESIDENT & CEO

Officer
377 -0.2%
89.80
US$33,855 		377 -0.2% 89.80 US$33,855
2026-03-16 2026-03-12 S Sale
2.8
Drohan Kevin

VP & CHIEF ACCOUNTING OFFICER

Officer
55 -0.7%
89.52
US$4,924 		55 -0.7% 89.52 US$4,924
2026-03-16 2026-03-12 S Sale
3.0
Steves Sean

Sr VP & COO of SW Ops

Officer
97 -1.0%
89.71
US$8,702 		97 -1.0% 89.71 US$8,702
2026-03-16 2026-03-12 S Sale
3.0
CASELLA JOHN W
Non-Executive Director
963 -2.9%
90.06
US$86,728 		963 -2.9% 90.06 US$86,728
2026-03-16 2026-03-12 S Sale
2.3
Sayward Shelley E.

SENIOR VP & GENERAL COUNSEL

Officer
129 -0.4%
89.71
US$11,573 		129 -0.4% 89.71 US$11,573
2026-03-12 2026-03-12 PrS Proposed sale
3.0
CASELLA JOHN W

Officer

Officer
963
90.01
US$86,682 		963 90.01 US$86,682
2026-03-12 2026-03-12 PrS Proposed sale
3.0
Steves Sean

Officer

Officer
97
89.24
US$8,656 		97 89.24 US$8,656
2026-03-12 2026-03-12 PrS Proposed sale
2.7
Coletta Edmond

Officer

Officer
377
89.68
US$33,808 		377 89.68 US$33,808
2026-03-12 2026-03-12 PrS Proposed sale
2.3
Sayward Shelley E.

Officer

Officer
129
89.35
US$11,527 		129 89.35 US$11,527
2026-03-12 2026-03-12 PrS Proposed sale
2.8
Drohan Kevin

Officer

Officer
55
88.68
US$4,878 		55 88.68 US$4,878
2026-03-02 2026-02-27 S Sale
2.7
Coletta Edmond

PRESIDENT

Officer
3,812 -2.5%
93.70
US$357,184 		3,812 -2.5% 93.70 US$357,184
2026-03-02 2026-02-27 S Sale
2.8
Drohan Kevin

VP & CHIEF ACCOUNTING OFFICER

Officer
675 -8.3%
92.61
US$62,512 		675 -8.3% 92.61 US$62,512
2026-03-02 2026-02-27 S Sale
3.0
Steves Sean

Sr VP & COO of SW Ops

Officer
1,199 -11.0%
92.89
US$111,375 		1,199 -11.0% 92.89 US$111,375
2026-03-02 2026-02-27 S Sale
2.3
Sayward Shelley E.

SENIOR VP & GENERAL COUNSEL

Officer
1,591 -5.5%
92.91
US$147,820 		1,591 -5.5% 92.91 US$147,820
2026-03-02 2026-02-27 S Sale
3.0
CASELLA JOHN W

CHIEF EXECUTIVE OFFICER

Executive Director
6,726 -19.4%
93.10
US$626,191 		6,726 -19.4% 93.10 US$626,191
2026-02-27 2026-02-27 PrS Proposed sale
3.0
CASELLA JOHN W

Officer

Officer
6,900
93.35
US$644,115 		6,900 93.35 US$644,115
2026-02-27 2026-02-27 PrS Proposed sale
2.3
Sayward Shelley E.

Officer

Officer
1,591
92.91
US$147,820 		1,591 92.91 US$147,820
2026-02-27 2026-02-27 PrS Proposed sale
3.0
Steves Sean

Officer

Officer
1,199
92.89
US$111,377 		1,199 92.89 US$111,377
2026-02-27 2026-02-27 PrS Proposed sale
2.7
Coletta Edmond

Officer

Officer
4,000
93.95
US$375,800 		4,000 93.95 US$375,800
2026-02-27 2026-02-27 PrS Proposed sale
2.8
Drohan Kevin

Officer

Officer
675
92.61
US$62,512 		675 92.61 US$62,512
2025-12-09 2025-12-08 S Sale
2.7
Coletta Edmond

PRESIDENT

Officer
7,000 -4.7%
100.07
US$700,490 		7,000 -4.7% 100.07 US$700,490
2025-12-08 2025-12-08 PrS Proposed sale
2.7
Edmond R. Coletta

Officer

Officer
7,000
99.22
US$694,540 		7,000 99.22 US$694,540
2025-11-10 2025-11-07 S Sale
1.9
Helgeson Bradford John

Executive VP and CFO

Officer
262 -5.0%
87.65
US$22,964 		262 -5.0% 87.65 US$22,964
2025-11-06 2025-11-04 S Sale
2.7
Green Emily Nagle
Non-Executive Director
1,116 -16.5%
89.38
US$99,748 		1,116 -16.5% 89.38 US$99,748
2025-08-05 2025-08-04 PlS Planned sale
2.6
Ligon Paul

SR VP of Sustainable Growth

Officer
1,000 -5.2%
102.84
US$102,840 		1,000 -5.2% 102.84 US$102,840
2025-08-04 2025-08-04 PrS Proposed sale
2.6
PAUL LIGON

Officer

Officer
1,000
102.98
US$102,980 		1,000 102.98 US$102,980
2025-06-04 2025-06-03 PlS Planned sale
2.6
Ligon Paul

SR VP of Sustainable Growth

Officer
1,000 -4.9%
116.98
US$116,980 		1,000 -4.9% 116.98 US$116,980
2025-05-09 2025-05-08 S Sale
3.0
CASELLA JOHN W

CHIEF EXECUTIVE OFFICER

Executive Director
18,093 -61.3%
119.87
US$2,168,808 		18,093 -61.3% 119.87 US$2,168,808
2025-05-08 2025-05-08 PrS Proposed sale
3.0
CASELLA JOHN W

Officer; Director

Executive Director
18,093
120.37
US$2,177,854 		18,093 120.37 US$2,177,854
2025-05-07 2025-05-06 S Sale
2.7
Coletta Edmond

PRESIDENT

Officer
5,562 -3.6%
119.18
US$662,879 		5,562 -3.6% 119.18 US$662,879
2025-05-06 2025-05-06 PrS Proposed sale
2.7
Coletta Edmond

Officer

Officer
5,562
119.18
US$662,891 		5,562 119.18 US$662,891
2025-04-17 2025-04-16 PlS Planned sale
2.6
Ligon Paul

SR VP of Sustainable Growth

Officer
100 -0.5%
120.32
US$12,032 		100 -0.5% 120.32 US$12,032
2025-04-17 2025-04-16 PlS Planned sale
2.6
Ligon Paul

SR VP of Sustainable Growth

Officer
700 -3.3%
119.62
US$83,734 		700 -3.3% 119.62 US$83,734
2025-04-17 2025-04-16 PlS Planned sale
2.6
Ligon Paul

SR VP of Sustainable Growth

Officer
400 -1.9%
118.66
US$47,464 		400 -1.9% 118.66 US$47,464
2025-04-17 2025-04-16 PlS Planned sale
2.6
Ligon Paul

SR VP of Sustainable Growth

Officer
800 -3.6%
117.65
US$94,120 		800 -3.6% 117.65 US$94,120
2025-04-16 2025-04-16 PrS Proposed sale
2.6
PAUL LIGON

Officer

Officer
3,000
118.04
US$354,120 		3,000 118.04 US$354,120
2025-03-14 2025-03-13 S Sale
2.3
Sayward Shelley E.

SENIOR VP & GENERAL COUNSEL

Officer
206 -0.8%
103.95
US$21,414 		206 -0.8% 103.95 US$21,414
2025-03-14 2025-03-13 S Sale
2.7
Coletta Edmond

PRESIDENT

Officer
5,000 -3.1%
105.00
US$525,000 		5,000 -3.1% 105.00 US$525,000
2025-03-14 2025-03-13 S Sale
2.7
Coletta Edmond

PRESIDENT

Officer
456 -0.3%
104.07
US$47,456 		456 -0.3% 104.07 US$47,456
2025-03-14 2025-03-13 S Sale
3.0
CASELLA JOHN W

CHIEF EXECUTIVE OFFICER

Executive Director
865 -2.8%
104.23
US$90,159 		865 -2.8% 104.23 US$90,159
2025-03-14 2025-03-13 S Sale
1.9
Helgeson Bradford John

Executive VP and CFO

Officer
197 -3.6%
103.87
US$20,462 		197 -3.6% 103.87 US$20,462
2025-03-14 2025-03-13 S Sale
2.6
Ligon Paul

SR VP of Sustainable Growth

Officer
57 -0.3%
104.06
US$5,931 		57 -0.3% 104.06 US$5,931
2025-03-14 2025-03-13 S Sale
2.8
CASELLA DOUGLAS R

VICE CHAIRMAN, BD OF DIRECTORS

Executive Director
200 -0.2%
103.93
US$20,786 		200 -0.2% 103.93 US$20,786
2025-03-14 2025-03-13 S Sale
3.0
Steves Sean

Sr VP & COO of SW Ops

Officer
108 -1.4%
104.13
US$11,246 		108 -1.4% 104.13 US$11,246
2025-03-14 2025-03-13 S Sale
2.8
Drohan Kevin

VP & CHIEF ACCOUNTING OFFICER

Officer
57 -1.0%
104.00
US$5,928 		57 -1.0% 104.00 US$5,928
2025-03-13 2025-03-13 PrS Proposed sale
2.7
Coletta Edmond

Officer

Officer
5,000
105.00
US$525,000 		5,000 105.00 US$525,000
2025-08-04 2025-03-12 PrS Proposed sale
2.7
Edmond Coletta

Officer

Officer
1,292
105.50
US$136,302 		1,292 105.50 US$136,302
2025-03-14 2025-03-12 S Sale
2.3
Sayward Shelley E.

SENIOR VP & GENERAL COUNSEL

Officer
166 -0.7%
106.18
US$17,626 		166 -0.7% 106.18 US$17,626
2025-03-14 2025-03-12 S Sale
2.3
Sayward Shelley E.

SENIOR VP & GENERAL COUNSEL

Officer
215 -0.9%
106.98
US$23,001 		215 -0.9% 106.98 US$23,001
2025-03-14 2025-03-12 S Sale
2.7
Coletta Edmond

PRESIDENT

Officer
377 -0.2%
106.35
US$40,094 		377 -0.2% 106.35 US$40,094
2025-03-14 2025-03-12 S Sale
2.7
Coletta Edmond

PRESIDENT

Officer
459 -0.3%
106.33
US$48,805 		459 -0.3% 106.33 US$48,805
2025-03-14 2025-03-12 S Sale
3.0
CASELLA JOHN W

CHIEF EXECUTIVE OFFICER

Executive Director
752 -2.4%
106.38
US$79,998 		752 -2.4% 106.38 US$79,998
2025-03-14 2025-03-12 S Sale
3.0
CASELLA JOHN W

CHIEF EXECUTIVE OFFICER

Executive Director
1,076 -3.3%
107.94
US$116,143 		1,076 -3.3% 107.94 US$116,143
2025-03-14 2025-03-12 S Sale
2.6
Ligon Paul

SR VP of Sustainable Growth

Officer
71 -0.3%
106.18
US$7,539 		71 -0.3% 106.18 US$7,539
2025-03-14 2025-03-12 S Sale
2.6
Ligon Paul

SR VP of Sustainable Growth

Officer
54 -0.2%
106.89
US$5,772 		54 -0.2% 106.89 US$5,772
2025-03-14 2025-03-12 S Sale
2.8
CASELLA DOUGLAS R

VICE CHAIRMAN, BD OF DIRECTORS

Executive Director
224 -0.2%
106.33
US$23,818 		224 -0.2% 106.33 US$23,818
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