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CWST

Casella Waste Systems Inc
$95.70 -4.21 (-4.21%) At close · Jul 17
Market Cap
$6.09B
Shares
63,609,941

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 413
Total Value: $5,799,325,232
Total Shares: 72,167,026
Showing 1–100 of 416 holdings by value · page 1 of 5

Institutional Ownership Trend

26 quarters

Superinvestors Holding CWST

All superinvestors →
Mario Gabelli $7,870,528

Holder Concentration

Across 405 13F filers
Top Holder
12.7%
Jun 2023 → Mar 2026 · range 9.0% – 12.7%
of institutional value
Top 5
27.5%
Jun 2023 → Mar 2026 · range 27.5% – 32.8%
of institutional value
Top 10
40.4%
Jun 2023 → Mar 2026 · range 40.4% – 47.7%
of institutional value
HHI
304
Jun 2023 → Mar 2026 · range 284 – 343
Broadly held
Showing 100 of 416
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $717,810,553 12.38% 9,047,272
Large WASATCH ADVISORS LP $342,458,670 5.91% 3,531,594
Mid Conestoga Capital Advisors, LLC $222,507,046 3.84% 2,804,475
Mega VANGUARD CAPITAL MANAGEMENT LLC $222,066,868 3.83% 2,798,927
Mega STATE STREET CORP $189,558,889 3.27% 2,389,197
Mega Capital Research Global Investors $184,875,291 3.19% 2,330,165
Mega Capital International Investors $154,936,738 2.67% 1,952,820
Mega T. Rowe Price Investment Management, Inc. $134,837,536 2.33% 1,699,490
Mega Invesco Ltd. $131,183,765 2.26% 1,653,438
Mega GEODE CAPITAL MANAGEMENT, LLC $123,227,952 2.12% 1,553,163
Mega JPMORGAN CHASE & CO $107,813,058 1.86% 1,358,874
Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC $99,737,679 1.72% 1,257,092
Large SILVERCREST ASSET MANAGEMENT GROUP LLC $99,337,012 1.71% 1,252,042
Mega WELLINGTON MANAGEMENT GROUP LLP $96,144,368 1.66% 1,211,802
Mega MORGAN STANLEY $94,834,620 1.64% 1,195,294
Mid GENEVA CAPITAL MANAGEMENT LLC $92,279,321 1.59% 1,163,087
Mega Clearbridge Investments, LLC $90,584,778 1.56% 1,141,729
Large EARNEST PARTNERS LLC $89,898,329 1.55% 1,133,077
Mega DIMENSIONAL FUND ADVISORS LP $84,666,250 1.46% 1,067,132
Mega GOLDMAN SACHS GROUP INC $83,368,091 1.44% 1,050,770
Mega NEUBERGER BERMAN GROUP LLC $75,672,666 1.30% 953,777
Mega UBS Group AG $74,009,699 1.28% 932,817
Large Pictet Asset Management Holding SA $73,339,912 1.26% 924,375
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $66,282,619 1.14% 835,425
Large WESTFIELD CAPITAL MANAGEMENT CO LP $65,256,515 1.13% 822,492
Mega AMERIPRISE FINANCIAL INC $61,912,014 1.07% 780,338
Large VOYA INVESTMENT MANAGEMENT LLC $57,470,245 0.99% 724,354
Large Allspring Global Investments Holdings, LLC $57,274,751 0.99% 721,890
Large BAMCO INC /NY/ $57,002,695 0.98% 718,461
Mega NORTHERN TRUST CORP Bank $56,472,305 0.97% 711,776
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $51,785,218 0.89% 652,700
Large BROWN ADVISORY INC $51,530,693 0.89% 649,492
Large LOOMIS SAYLES & CO L P $48,290,607 0.83% 608,654
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. $47,049,333 0.81% 593,009
Mid TimesSquare Capital Management, LLC $45,560,042 0.79% 574,238
Large LONDON CO OF VIRGINIA $42,264,973 0.73% 532,707
Large FRED ALGER MANAGEMENT, LLC $41,785,124 0.72% 526,659
Large SEI INVESTMENTS CO $41,658,418 0.72% 525,062
Large Point72 Asset Management, L.P. $36,809,713 0.63% 463,949
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $35,548,207 0.61% 448,049
Mega BANK OF AMERICA CORP /DE/ Bank $34,822,800 0.60% 438,906
Mega VANGUARD FIDUCIARY TRUST CO Bank $34,601,443 0.60% 436,116
Mid SEGALL BRYANT & HAMILL, LLC $33,854,616 0.58% 426,703
Large Woodline Partners LP $32,958,312 0.57% 415,406
Mega Bank of New York Mellon Corp Bank $31,434,105 0.54% 396,195
Mega Capital World Investors $31,109,214 0.54% 392,100
Large Select Equity Group, L.P. $31,099,217 0.54% 391,974
Large FIFTH THIRD BANCORP Bank $30,746,709 0.53% 387,531
Large Boston Trust Walden Corp $30,528,841 0.53% 384,785
Mega FRANKLIN RESOURCES INC $27,437,833 0.47% 345,826
Mid Ranger Investment Management, L.P. $27,109,605 0.47% 341,689
Mid DF DENT & CO INC $25,990,593 0.45% 327,585
Mid Global Alpha Capital Management Ltd. $25,851,114 0.45% 325,827
Mega PRINCIPAL FINANCIAL GROUP INC $24,251,460 0.42% 305,665
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $23,215,118 0.40% 292,603
Mega PRICE T ROWE ASSOCIATES INC /MD/ $23,180,212 0.40% 292,163
Large BLAIR WILLIAM & CO/IL $23,045,413 0.40% 290,464
Mega RAYMOND JAMES FINANCIAL INC $22,555,566 0.39% 284,290
Mid Harvey Partners, LLC $22,334,210 0.39% 281,500
Mega ENVESTNET ASSET MANAGEMENT INC $21,947,744 0.38% 276,629
Mid Zimmer Partners, LP $20,445,441 0.35% 257,694
Large Rockefeller Capital Management L.P. $20,283,745 0.35% 255,656
Mid Granahan Investment Management, LLC $19,855,787 0.34% 250,262
Large Aberdeen Group plc $19,800,407 0.34% 249,564
Mid Fenimore Asset Management Inc $18,603,791 0.32% 191,851
Large GW&K Investment Management, LLC $18,428,857 0.32% 232,277
Large Public Sector Pension Investment Board Pension $17,738,678 0.31% 223,578
Large Tidal Investments LLC $17,604,117 0.30% 221,882
Mid KENNEDY CAPITAL MANAGEMENT LLC $16,743,675 0.29% 211,037
Mid THORNBURG INVESTMENT MANAGEMENT INC $16,119,269 0.28% 203,167
Mid Aristotle Capital Boston, LLC $15,546,990 0.27% 195,954
Small Summit Creek Advisors LLC $14,819,125 0.26% 186,780
Large CREDIT AGRICOLE S A $14,784,294 0.25% 186,341
Mega Nuveen, LLC $13,880,056 0.24% 174,944
Mega RHUMBLINE ADVISERS $13,316,504 0.23% 167,841
Small HALLSTATT ADVISORS L.P. $13,121,645 0.23% 165,385
Mid Granite Investment Partners, LLC $12,978,675 0.22% 163,583
Mega JENNISON ASSOCIATES LLC $12,224,230 0.21% 154,074
Mid OSTERWEIS CAPITAL MANAGEMENT INC $11,763,741 0.20% 148,270
Mega Legal & General Group Plc $11,431,385 0.20% 144,081
Mid RIVERBRIDGE PARTNERS LLC $9,985,873 0.17% 102,979
Mega Swiss National Bank Bank $9,806,424 0.17% 123,600
Large Thrivent Financial for Lutherans $9,549,679 0.16% 120,364
Mega California Public Employees Retirement System Pension $9,540,476 0.16% 120,248
Large Russell Investments Group, Ltd. $9,485,807 0.16% 119,559
Large STATE OF WISCONSIN INVESTMENT BOARD $8,964,309 0.15% 112,986
Mid BOOTHBAY FUND MANAGEMENT, LLC $8,815,388 0.15% 111,109
Mid PICTON MAHONEY ASSET MANAGEMENT $8,102,676 0.14% 102,126
Mid GAMCO INVESTORS, INC. ET AL $7,870,528 0.14% 99,200
Mega ROYAL BANK OF CANADA Bank $7,691,773 0.13% 96,947
Mid AXIOM INVESTORS LLC /DE $7,299,676 0.13% 92,005
Small Catawba River Capital $6,910,672 0.12% 87,102
Large Curated Wealth Partners LLC $6,824,554 0.12% 70,378
Mega WELLS FARGO & COMPANY/MN $6,608,783 0.11% 83,297
Large LAZARD ASSET MANAGEMENT LLC $6,591,487 0.11% 83,079
Large JONES FINANCIAL COMPANIES LLLP $6,527,777 0.11% 82,276
Mega VICTORY CAPITAL MANAGEMENT INC $6,419,399 0.11% 80,910
Large NATIXIS ADVISORS, LLC $6,403,690 0.11% 80,712
Large Impax Asset Management Group plc $6,347,200 0.11% 80,000
Mid NICHOLAS COMPANY, INC. $6,269,843 0.11% 79,025
Key facts CIK 911177 CUSIP 147448104 13F (30d) 56 filings 47 filers Visit website Investor relations

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