Security Snapshot

CASELLA WASTE SYSTEMS INC - Common Stock SH (CWST) Institutional Ownership

CUSIP: 147448104

13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026

13F reference period

Q3 2026

Institutions Reporting

243

Shares (Excl. Options)

40.81MFull value: 40,805,127 · shares · 30 Sep 2026

Price

$80.35

The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.

Save this security page for your next review

Watchlists follow companies and investors, across their share classes. Bookmark this page to revisit this specific CUSIP and its quarterly holders. If you create an account from here, we will bring you back after verification.

Create free account and return here Sign in and return here Review latest holder period
Security type / class
Equity / Common Stock SH
Symbol
CWST on Nasdaq
All holders as of 30 Sep 2026
Q3 2026
Total 13F shares
40,805,127
Latest holder snapshot 5 signals
Total 13F value
$3,293,763,150
Portfolio coverage rank
0.01%
Share change
-163,424
Value change
-$12,279,316
Number of holders
243
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
62,369,163
SEC-reported price per share
$80.35
Insider filing price
$80.35
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • CWST - CASELLA WASTE SYSTEMS INC - Common Stock SH is tracked under CUSIP 147448104.
  • 243 institutions reported positions in Q3 2026.
  • 4 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 415 to 243 between Q2 2026 and Q3 2026.
  • SEC-reported value moved from
    $7.49BFull value: $7,485,758,262 · USD · 30 Jun 2026
    to
    $3.29BFull value: $3,293,763,150 · USD · 30 Sep 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 243 institutions filings for Q3 2026.

Open SEC evidence

Security key

147448104

13F reference period

Q3 2026

13F holders

243

13D/G owners

4

CIK / CUSIP context first

Open Q3 2026 holders CWST full holder history CASELLA WASTE SYSTEMS INC SEC filings CASELLA WASTE SYSTEMS INC company facts CASELLA WASTE SYSTEMS INC insider transactions

Broader feeds

Latest 13F filings Latest 13D/G filings All securities

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
4
Security
CWST
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 4.9% -12% $245,556,751 -$38,206,827 3,056,089 -13% Wasatch Advisors LP 30 Sep 2026
As of 30 Sep 2026, 243 institutional investors reported holding
40.81MFull value: 40,805,127 · shares · 30 Sep 2026
shares of CASELLA WASTE SYSTEMS INC - Common Stock SH (CWST). This represents 65% of the company’s total
62.37MFull value: 62,369,163 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
55%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
VANGUARD PORTFOLIO MANAGEMENT LLC 5.4% 3,394,509 -1.6% 0.01% $272,748,798
WASATCH ADVISORS LP 4.9% 3,056,089 -13% 1.8% $245,556,751
VANGUARD CAPITAL MANAGEMENT LLC 4.5% 2,820,582 -0.09% 0% $226,633,764
STATE STREET CORP 4.1% 2,536,008 +0.63% 0.01% $203,746,388
Capital International Investors 3.3% 2,053,783 -0.03% 0.03% $165,021,464
JANA Partners Management, LP 2.9% 1,812,493 9.2% $145,633,813
Conestoga Capital Advisors, LLC 2.8% 1,720,853 -26% 4.2% $138,270,539
GEODE CAPITAL MANAGEMENT, LLC 2.6% 1,629,477 -1.1% 0.01% $130,951,987
Capital Research Global Investors 2.6% 1,620,682 -20% 0.02% $130,221,799
Invesco Ltd. 2.4% 1,476,121 +1.2% 0.01% $118,606,322
NEUBERGER BERMAN GROUP LLC 2.2% 1,379,596 -3.8% 0.08% $110,850,538
EARNEST PARTNERS LLC 2.1% 1,315,646 -6% 0.42% $105,712,156
DIMENSIONAL FUND ADVISORS LP 2.1% 1,286,165 +8.6% 0.02% $103,341,008
Clearbridge Investments, LLC 2% 1,239,547 +1.6% 0.09% $99,597,601
MORGAN STANLEY 1.9% 1,182,312 -2.6% 0% $94,998,868
Pictet Asset Management Holding SA 1.7% 1,040,856 -1.1% 0.08% $83,632,176
WESTFIELD CAPITAL MANAGEMENT CO LP 1.5% 955,888 +18% 0.25% $76,805,601
GENEVA CAPITAL MANAGEMENT LLC 1.3% 794,233 -13% 1.8% $63,816,602
FRANKLIN TEMPLETON INC 1% 634,992 +22% 0.01% $62,788,010
Public Sector Pension Investment Board 0.87% 542,455 +152% 0.1% $46,336,506
TimesSquare Capital Management, LLC 0.81% 503,799 +0.01% 0.66% $40,480,250
VANGUARD FIDUCIARY TRUST CO 0.72% 449,896 -0.01% 0.01% $36,149,144
CREDIT AGRICOLE S A 0.59% 370,395 +6.9% 0.08% $29,761,238
Boston Trust Walden Corp 0.57% 353,538 -5.1% 0.23% $28,406,778
KENNEDY CAPITAL MANAGEMENT LLC 0.44% 275,687 +1% 0.42% $22,151,450

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
51
Headline period
Q3 2026
Rows shown
1-25 of 51
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 40,805,127 $3,293,763,150 -$12,279,316 $80.35 243
2026 Q2 77,288,010 $7,485,758,262 +$295,222,397 $96.97 415
2026 Q1 74,603,631 $5,920,699,193 -$221,095,308 $79.34 405
2025 Q4 77,460,588 $7,587,958,882 +$967,785,387 $97.94 392
2025 Q3 66,377,932 $6,294,041,340 +$73,532,668 $94.88 386
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
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .