CASELLA WASTE SYSTEMS INC - Class A Stock (CWST) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Class A Stock
Symbol
CWST on Nasdaq
Shares outstanding
62,438,678
Price per share
$97.94
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
66,377,158
Total reported value
$6,293,967,903
% of total 13F portfolios
0.01%
Share change
+931,576
Value change
+$73,535,461
Number of holders
384
Price from insider filings
$97.94
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of CASELLA WASTE SYSTEMS INC - Class A Stock (CWST) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 14% $874,479,914 8,928,731 BlackRock, Inc. 31 Dec 2025
VANGUARD GROUP INC 11% $643,945,020 6,574,893 The Vanguard Group 31 Dec 2025
Conestoga Capital Advisors, LLC 5.5% $396,150,082 3,432,843 Conestoga Capital Advisors 31 Dec 2024
WASATCH ADVISORS LP 5.5% $379,086,865 3,412,123 WASATCH ADVISORS LP 30 Jun 2025

As of 30 Sep 2025, 384 institutional investors reported holding 66,377,158 shares of CASELLA WASTE SYSTEMS INC - Class A Stock (CWST). This represents 106% of the company’s total 62,438,678 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of CASELLA WASTE SYSTEMS INC - Class A Stock (CWST) together control 73% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
VANGUARD GROUP INC 9.6% 5,993,583 -1.3% 0.01% $568,671,155
BlackRock, Inc. 7.3% 4,566,146 -1.7% 0.01% $433,235,942
WASATCH ADVISORS LP 5.9% 3,708,528 +8.7% 1.9% $351,865,137
Conestoga Capital Advisors, LLC 4.6% 2,876,061 +7.3% 4.4% $272,880,668
Invesco Ltd. 3.8% 2,403,753 -7.5% 0.04% $228,068,085
Capital Research Global Investors 3.2% 2,010,818 +39% 0.04% $190,786,412
Capital International Investors 3.1% 1,956,962 -0.16% 0.03% $185,676,555
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 2.9% 1,809,867 +0.54% 0.44% $171,720,181
T. Rowe Price Investment Management, Inc. 2.7% 1,707,199 +63% 0.1% $161,980,000
JPMORGAN CHASE & CO 2.7% 1,656,213 -3.1% 0.01% $157,141,490
WESTFIELD CAPITAL MANAGEMENT CO LP 2.6% 1,647,907 +6.2% 0.66% $156,353,416
GEODE CAPITAL MANAGEMENT, LLC 2.5% 1,533,293 +2.2% 0.01% $145,499,182
STATE STREET CORP 2.3% 1,435,019 +0.15% 0% $136,154,603
WELLINGTON MANAGEMENT GROUP LLP 2.2% 1,390,635 +30% 0.02% $131,943,448
GENEVA CAPITAL MANAGEMENT LLC 2% 1,256,415 +16% 2% $119,208,627
SILVERCREST ASSET MANAGEMENT GROUP LLC 2% 1,241,649 +9.8% 0.78% $117,808,104
EARNEST PARTNERS LLC 1.9% 1,195,203 -5.5% 0.49% $113,400,861
AMERIPRISE FINANCIAL INC 1.7% 1,066,608 -19% 0.02% $101,199,766
MACQUARIE GROUP LTD 1.7% 1,046,398 -8.1% 0.12% $99,282,000
DIMENSIONAL FUND ADVISORS LP 1.5% 950,653 +9.4% 0.02% $90,177,765
NEUBERGER BERMAN GROUP LLC 1.5% 934,364 +17% 0.06% $88,652,457
GOLDMAN SACHS GROUP INC 1.4% 886,575 +38% 0.01% $84,118,236
MORGAN STANLEY 1.3% 841,766 +20% 0% $79,866,962
BROWN ADVISORY INC 1.1% 717,029 -4.4% 0.09% $68,031,762
Allspring Global Investments Holdings, LLC 1.1% 713,829 +1.7% 0.1% $64,879,917

Institutional Holders of CASELLA WASTE SYSTEMS INC - Class A Stock (CWST) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 1,211,982 $119,528,740 +$16,974,477 $97.94 41
2025 Q3 66,377,158 $6,293,967,903 +$73,535,461 $94.88 384
2025 Q2 65,438,323 $7,549,760,585 +$65,833,549 $115.38 387
2025 Q1 64,738,257 $7,219,647,011 +$4,577,568 $111.51 367
2024 Q4 65,127,232 $6,889,761,758 +$120,091,578 $105.81 342
2024 Q3 64,015,497 $6,371,276,477 +$403,630,244 $99.49 342
2024 Q2 59,431,643 $5,897,740,159 +$129,539,608 $99.22 310
2024 Q1 58,315,369 $5,765,883,359 +$101,656,355 $98.87 308
2023 Q4 57,556,798 $4,920,281,685 +$11,630,175 $85.46 307
2023 Q3 57,443,474 $4,383,109,169 +$114,397,223 $76.30 296
2023 Q2 55,773,711 $5,043,757,708 +$464,661,179 $90.45 315
2023 Q1 50,655,221 $4,186,998,515 +$61,650,233 $82.66 262
2022 Q4 50,385,224 $3,996,098,320 -$34,288,702 $79.31 269
2022 Q3 50,812,708 $3,881,940,157 +$20,432,104 $76.39 273
2022 Q2 50,187,812 $3,647,952,594 +$52,994,788 $72.68 258
2022 Q1 49,583,078 $4,345,553,496 +$85,127,456 $87.65 265
2021 Q4 48,690,713 $4,154,272,154 -$326,784,571 $85.42 274
2021 Q3 50,052,773 $3,802,867,611 +$65,807,840 $75.94 230
2021 Q2 49,240,434 $3,124,710,856 +$33,972,996 $63.43 229
2021 Q1 48,700,728 $3,097,445,679 +$16,882,308 $63.57 214
2020 Q4 48,606,061 $3,010,613,615 +$170,675,439 $61.95 217
2020 Q3 45,834,847 $2,560,435,065 +$8,978,057 $55.85 198
2020 Q2 45,720,261 $2,382,751,697 +$20,650,311 $52.12 184
2020 Q1 45,514,290 $1,778,109,952 +$40,471,376 $39.06 177
2019 Q4 44,202,861 $2,034,920,566 +$15,043,541 $46.03 174
2019 Q3 44,047,616 $1,891,343,852 +$90,989,395 $42.94 180
2019 Q2 42,331,537 $1,677,585,730 +$51,042,567 $39.63 173
2019 Q1 42,062,417 $1,495,619,201 +$195,288,205 $35.56 169
2018 Q4 36,699,498 $1,042,048,756 -$504,622 $28.49 163
2018 Q3 36,743,937 $1,140,503,019 +$13,343,132 $31.06 156
2018 Q2 36,178,236 $925,517,871 +$23,065,070 $25.61 150
2018 Q1 35,465,562 $829,180,407 +$26,838,905 $23.38 147
2017 Q4 34,338,197 $790,314,356 +$33,512,818 $23.02 142
2017 Q3 33,339,498 $626,728,588 +$17,929,859 $18.80 133
2017 Q2 32,529,465 $533,808,685 +$17,941,019 $16.41 142
2017 Q1 31,507,257 $444,561,554 +$55,126,421 $14.11 137
2016 Q4 30,672,677 $380,639,791 +$11,620,537 $12.41 132
2016 Q3 29,445,167 $303,284,624 +$23,413,954 $10.30 115
2016 Q2 27,209,563 $213,590,081 +$2,889,184 $7.85 101
2016 Q1 26,788,589 $180,327,975 +$2,194,113 $6.70 93
2015 Q4 26,495,429 $158,441,682 -$1,761,315 $5.98 92
2015 Q3 26,790,773 $155,407,819 +$5,562,976 $5.80 95
2015 Q2 25,833,609 $144,922,046 -$16,385,413 $5.61 89
2015 Q1 28,592,812 $157,259,140 -$6,770,107 $5.50 87
2014 Q4 30,212,040 $122,007,375 +$2,320,906 $4.04 89
2014 Q3 29,516,642 $113,640,249 -$345,939 $3.85 84
2014 Q2 29,394,709 $147,277,163 +$4,384,407 $5.01 93
2014 Q1 28,512,983 $145,691,255 +$1,471,712 $5.11 84