Casella Waste Systems Inc. Class ACWST
13F holders, Q1 2026 (March 31)407holders +14
59new positions
46sold out
6famous investors
$79.36avg. 13F price*
At the end of Q1 2026, 407 institutions reported holding Casella Waste Systems Inc. Class A (CWST) in their 13F filings, up 14 from Q4 2025. 59 opened new positions and 46 sold out. The largest holders were BlackRock, Inc. ($717.8M), Vanguard Portfolio Management LLC ($266.0M) and Conestoga Capital Advisors, LLC ($222.5M). 6 famous investors held it, including Ron Baron (0.2% of Baron Capital (BAMCO)'s portfolio), Mario Gabelli (0.1% of GAMCO Investors's portfolio) and Steve Cohen (0.1% of Point72 Asset Management's portfolio).
- Company
- Casella Waste Systems Inc. Class A
- CUSIP
- 147448104
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 59 | $174.3M |
| Exits | 46 | $81.4M |
All 13F filers, Q4 2025 → Q1 2026: 5,555,200 shares bought and 7,800,288 shares sold, net −2,245,088 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 407 holders
| BlackRock, Inc. | 0.01% | Reduce -0.1% | 9,047,272 | $717.8M |
| Vanguard Portfolio Management LLC | 0.01% | — | 3,353,241 | $266.0M |
| Conestoga Capital Advisors, LLC | 4.44% | Add +1.0% | 2,804,475 | $222.5M |
| Vanguard Capital Management LLC | 0.01% | — | 2,798,927 | $222.1M |
| Wasatch Advisors LP | 1.36% | Reduce -31.4% | 2,582,220 | $204.9M |
| State Street Corp. | 0.01% | Add +3.6% | 2,389,197 | $189.6M |
| Capital Research Global Investors | 0.03% | Reduce -6.3% | 2,330,165 | $184.9M |
| Capital International Investors | 0.04% | Reduce -2.3% | 1,952,820 | $154.9M |
| T. Rowe Price Investment Management, Inc. | 0.09% | Reduce -0.5% | 1,699,490 | $134.8M |
| Invesco Ltd. | 0.01% | Reduce -38.9% | 1,653,438 | $131.2M |
| Geode Capital Management, LLC | 0.01% | Add +0.9% | 1,553,163 | $123.3M |
| JPMorgan Chase & Co. | 0.01% | Reduce -7.1% | 1,358,874 | $106.5M |
| William Blair Investment Management, LLC | 0.33% | Reduce -14.4% | 1,257,092 | $99.7M |
| Silvercrest Asset Management Group LLC | 0.72% | Reduce -7.2% | 1,252,042 | $99.3M |
| Wellington Management Group LLP | 0.02% | Reduce -7.3% | 1,211,802 | $96.1M |
| Morgan Stanley | 0.01% | Reduce -12.3% | 1,195,294 | $94.8M |
| Geneva Capital Management LLC | 1.96% | Reduce -8.1% | 1,163,087 | $92.3M |
| Clearbridge Investments, LLC | 0.08% | Add +52.1% | 1,141,729 | $90.6M |
| Earnest Partners LLC | 0.37% | Reduce -2.5% | 1,133,077 | $89.9M |
| Dimensional Fund Advisors LP | 0.02% | Add +3.0% | 1,067,132 | $84.7M |
| Goldman Sachs Group Inc. | 0.01% | Add +16.8% | 1,050,770 | $83.4M |
| Neuberger Berman Group LLC | 0.06% | Reduce -8.8% | 953,777 | $75.7M |
| UBS Group AG | 0.01% | Add +10.8% | 932,817 | $74.0M |
| Pictet Asset Management Holding SA | 0.08% | Reduce -6.7% | 924,375 | $73.3M |
| Nomura Asset Management International Inc. | 0.11% | Reduce -11.4% | 835,425 | $66.3M |
| Westfield Capital Management Co. LP | 0.27% | Reduce -50.6% | 822,492 | $65.3M |
| Ameriprise Financial Inc. | 0.01% | Add +2.1% | 780,338 | $61.9M |
| Allspring Global Investments Holdings, LLC | 0.10% | Add +3.2% | 721,890 | $58.9M |
| Voya Investment Management LLC | 0.07% | Add +5.5% | 724,354 | $57.5M |
| Baron Capital (BAMCO) | 0.17% | Add +61.0% | 718,461 | $57.0M |
| Northern Trust Corp. | 0.01% | Add +0.3% | 711,776 | $56.5M |
| Charles Schwab Investment Management Inc. | 0.01% | Reduce -3.0% | 652,700 | $51.8M |
| Brown Advisory Inc. | 0.08% | Reduce -2.0% | 649,492 | $51.5M |
| Loomis Sayles & Co. L P | 0.07% | Reduce -6.5% | 608,654 | $48.3M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.05% | Add +18.3% | 593,009 | $47.0M |
| TimesSquare Capital Management, LLC | 0.77% | Reduce -3.9% | 574,238 | $45.6M |
| London Co. of Virginia | 0.26% | Reduce -2.6% | 532,707 | $42.3M |
| Fred Alger Management, LLC | 0.18% | Add +17.4% | 526,659 | $41.8M |
| Sei Investments Co. | 0.04% | Reduce -5.9% | 525,062 | $41.7M |
| Point72 Asset Management | 0.07% | New | 463,949 | $36.8M |
| Schroder Investment Management Group | 0.03% | New | 448,049 | $35.1M |
| Bank of America Corp. | 0.00% | Reduce -28.6% | 438,906 | $34.8M |
| Vanguard Fiduciary Trust Co. | 0.01% | — | 436,116 | $34.6M |
| Segall Bryant & Hamill, LLC | 0.48% | Reduce -2.2% | 426,703 | $33.9M |
| Woodline Partners LP | 0.12% | Add +781.3% | 415,406 | $33.0M |
| Bank of New York Mellon Corp | 0.01% | Reduce -2.9% | 396,195 | $31.4M |
| Capital World Investors | 0.00% | New | 392,100 | $31.1M |
| Select Equity Group, L.P. | 0.17% | Add +4.7% | 391,974 | $31.1M |
| Fifth Third Bancorp | 0.06% | Add +5715.3% | 387,531 | $30.7M |
| Boston Trust Walden Corp | 0.25% | Add +23.5% | 384,785 | $30.5M |
| Franklin Resources Inc. | 0.01% | Reduce -10.9% | 345,826 | $27.4M |
| Ranger Investment Management, L.P. | 1.96% | Reduce -0.7% | 341,689 | $27.1M |
| DF Dent & Co. Inc. | 0.50% | Reduce -4.6% | 327,585 | $26.0M |
| Global Alpha Capital Management Ltd. | 1.56% | Reduce -0.8% | 325,827 | $25.9M |
| Principal Financial Group Inc. | 0.01% | Add +2.3% | 305,665 | $24.3M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -5.9% | 292,603 | $23.2M |
| T. Rowe Price Associates Inc. | 0.00% | Reduce -17.8% | 292,163 | $23.2M |
| Blair William & Co. | 0.07% | Add +4.1% | 290,464 | $23.0M |
| Raymond James Financial Inc. | 0.01% | Reduce -6.6% | 284,290 | $22.6M |
| Harvey Partners, LLC | 1.81% | Add +43.5% | 281,500 | $22.3M |
| Envestnet Asset Management Inc. | 0.01% | Add +7.4% | 276,629 | $21.9M |
| Zimmer Partners, LP | 0.52% | Add +1596.0% | 257,694 | $20.4M |
| Rockefeller Capital Management L.P. | 0.04% | Add +35.8% | 255,656 | $20.3M |
| Granahan Investment Management, LLC | 0.96% | Reduce -2.9% | 250,262 | $19.9M |
| Aberdeen Group plc | 0.03% | Add +33.5% | 249,564 | $19.8M |
| GW&K Investment Management, LLC | 0.16% | Add +2.1% | 232,277 | $18.4M |
| Public Sector Pension Investment Board | 0.06% | Add +3.4% | 223,578 | $17.7M |
| Tidal Investments LLC | 0.05% | Add +32.8% | 221,882 | $17.6M |
| Kennedy Capital Management LLC | 0.35% | Add +6.6% | 211,037 | $16.7M |
| Thornburg Investment Management Inc. | 0.17% | Reduce -16.8% | 203,167 | $16.1M |
| Aristotle Capital Boston, LLC | 0.97% | Add +13.9% | 195,954 | $15.5M |
| Summit Creek Advisors LLC | 3.04% | Reduce -11.2% | 186,780 | $14.8M |
| Credit Agricole S A | 0.05% | Reduce -11.0% | 186,341 | $14.8M |
| Nuveen, LLC | 0.00% | Reduce -67.1% | 174,944 | $13.9M |
| Riverbridge Partners LLC | 0.34% | New | 173,205 | $13.7M |
| Rhumbline Advisers | 0.01% | Add +4.0% | 167,841 | $13.3M |
| Hallstatt Advisors L.P. | 10.38% | Add +13.9% | 165,385 | $13.1M |
| Granite Investment Partners, LLC | 0.80% | Reduce -5.2% | 163,583 | $13.0M |
| Jennison Associates LLC | 0.01% | Reduce -23.1% | 154,074 | $12.2M |
| Osterweis Capital Management Inc. | 0.73% | Reduce -7.8% | 148,270 | $11.8M |
| Fenimore Asset Management Inc | 0.26% | Add +24.7% | 146,534 | $11.6M |
| Legal & General Group Plc | 0.00% | Reduce -8.6% | 144,081 | $11.4M |
| Swiss National Bank | 0.01% | Add +0.3% | 123,600 | $9.8M |
| Thrivent Financial for Lutherans | 0.02% | Reduce -3.2% | 120,364 | $9.6M |
| California Public Employees Retirement System | 0.01% | Reduce -23.6% | 120,248 | $9.5M |
| Russell Investments Group, Ltd. | 0.01% | Reduce -29.4% | 119,559 | $9.5M |
| State of Wisconsin Investment Board | 0.02% | Reduce -4.0% | 112,986 | $9.0M |
| Boothbay Fund Management, LLC | 0.21% | Add +24.8% | 111,109 | $8.8M |
| Picton Mahoney Asset Management | 0.08% | New | 102,126 | $8.1M |
| GAMCO Investors | 0.08% | No change | 99,200 | $7.9M |
| Royal Bank of Canada | 0.00% | Reduce -3.5% | 96,947 | $7.7M |
| Alliancebernstein L.P. | 0.00% | Reduce -2.8% | 76,276 | $7.5M |
| Axiom Investors LLC | 0.08% | Reduce -54.3% | 92,005 | $7.3M |
| Catawba River Capital | 3.41% | Add +1.4% | 87,102 | $7.1M |
| Wells Fargo & Company | 0.00% | Reduce -35.1% | 83,297 | $6.6M |
| Lazard Asset Management LLC | 0.01% | Add +8.0% | 83,079 | $6.6M |
| Victory Capital Management Inc. | 0.00% | Reduce -3.1% | 80,910 | $6.4M |
| Natixis Advisors, LLC | 0.01% | Add +56.9% | 80,712 | $6.4M |
| Impax Asset Management Group plc | 0.04% | No change | 80,000 | $6.3M |
| Nicholas Company, Inc. | 0.12% | Reduce -0.5% | 79,025 | $6.3M |
"% of holder's portfolio" is CWST's weight in each manager's 13F, not the share of Casella Waste Systems Inc. Class A the manager owns.