Casella Waste Systems, Inc. (CWST) Insider Trading

Over the last 3 months, CWST insiders made 0 open-market buys and 4 sales, a net sale of -$1.6M (SEC Form 4). Over the last 6 months, 296 institutions increased and 287 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
4
Net (3m)
-$1.6M
Insider trades by month Buys Sells
Aug
Nov
Dec
Mar
May
Aug
Context3-month price +10.2%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Aug 26, 2026BURKE MICHAEL KdirectorSell1,100$92.99
Aug 14, 2026CASELLA DOUGLAS Rdirector, officer: VICE CHAIRMAN, BD OF DIRECTORSSell1,838$90.89
Aug 14, 2026CASELLA DOUGLAS Rdirector, officer: VICE CHAIRMAN, BD OF DIRECTORSSell1,343$91.12
Aug 14, 2026CASELLA DOUGLAS Rdirector, officer: VICE CHAIRMAN, BD OF DIRECTORSSell13,319$91.07
Aug 12, 2026Ribar Damian Andrewofficer: Executive VP and COOGrant25,000$92.52
Jun 5, 2026Sova GarydirectorGrant1,793$83.65
Jun 5, 2026Green Emily NagledirectorGrant1,793$83.65
Jun 5, 2026BURKE MICHAEL KdirectorGrant1,793$83.65
Jun 5, 2026CASELLA DOUGLAS Rdirector, officer: VICE CHAIRMAN, BD OF DIRECTORSGrant1,793$83.65
Jun 5, 2026HULLIGAN WILLIAM PdirectorGrant1,793$83.65
Jun 5, 2026Battles Michael LouisdirectorGrant1,793$83.65
Jun 5, 2026Kirk Rose M.directorGrant1,793$83.65
Jun 5, 2026DOODY JOSEPHdirectorGrant1,793$83.65
May 27, 2026BURKE MICHAEL KdirectorSell2,305$87.56
May 22, 2026Coletta Edmondofficer: PRESIDENT & CEOSell4,907$90.07
May 22, 2026Coletta Edmondofficer: PRESIDENT & CEOSell1,593$90.00
May 22, 2026Coletta Edmondofficer: PRESIDENT & CEOSell6,000$89.03
Mar 17, 2026Rains Christopher Alanofficer: Sr. VP & Chief Revenue OfficerGrant989—
Mar 16, 2026Sayward Shelley E.officer: SENIOR VP & GENERAL COUNSELSell362$87.73
Mar 16, 2026Coletta Edmondofficer: PRESIDENT & CEOSell988$87.81
Mar 16, 2026CASELLA JOHN WdirectorGrant5,513—
Mar 16, 2026CASELLA JOHN WdirectorSell1,744$87.77
Mar 16, 2026Sayward Shelley E.officer: SENIOR VP & GENERAL COUNSELSell129$89.71
Mar 16, 2026Steves Seanofficer: Sr VP & COO of SW OpsSell197$87.80
Mar 16, 2026Sayward Shelley E.officer: SENIOR VP & GENERAL COUNSELGrant1,654—
Mar 16, 2026Coletta Edmondofficer: PRESIDENT & CEOGrant6,892—
Mar 16, 2026Coletta Edmondofficer: PRESIDENT & CEOSell377$89.80
Mar 16, 2026Steves Seanofficer: Sr VP & COO of SW OpsSell97$89.71
Mar 16, 2026Drohan Kevinofficer: VP & CHIEF ACCOUNTING OFFICERSell55$89.52
Mar 16, 2026Helgeson Bradford Johnofficer: Executive VP and CFOSell405$87.73

Source: CWST SEC Form 4 filings, latest Aug 26, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their CWST positions over the last 6 months (SEC Form 13F).

Increased
296
New positions
134
Reduced
287
Sold out
55
Largest moves
InstitutionActionSharesFiled
BlackRock, Inc.Increased9.4MAug 7, 2026
BLACKROCK, INC.Reduced9.0MMay 13, 2026
WASATCH ADVISORS LPIncreased3.5MJul 10, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCIncreased3.4MAug 13, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position3.4MMay 8, 2026
VANGUARD CAPITAL MANAGEMENT LLCIncreased2.8MAug 13, 2026
CONESTOGA CAPITAL ADVISORS, LLCIncreased2.8MApr 24, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position2.8MMay 15, 2026
WASATCH ADVISORS LPReduced2.6MApr 21, 2026
STATE STREET CORPIncreased2.5MAug 7, 2026
STATE STREET CORPIncreased2.4MMay 15, 2026
Conestoga Capital Advisors, LLCReduced2.3MJul 24, 2026
CAPITAL RESEARCH GLOBAL INVESTORSReduced2.3MMay 13, 2026
T. Rowe Price Investment Management, Inc.Increased2.1MAug 14, 2026
Capital International InvestorsIncreased2.1MAug 12, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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