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Osterweis Capital Management’s Casella Waste Systems CWST Stock Holding History

Osterweis Capital Management’s Portfolio CWST Stock Details CWST Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$11.9M Sell
123,055
-25,215
-17% -$2.15M 0.56% 64
2026
Q1 		$11.8M Sell
148,270
-12,465
-8% -$1.19M 0.61% 54
2025
Q4 		$15.7M Buy
160,735
+37,550
+30% +$3.49M 0.67% 46
2025
Q3 		$11.7M Buy
+123,185
New +$12.4M 0.53% 51

Other funds holding CWST

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
WA
Wasatch Advisors Salt Lake City, Utah $15.3B AUM 25.06% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
CCA
Conestoga Capital Advisors Wayne, Pennsylvania $4.6B AUM 16.08% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Osterweis Capital Management's CWST Position: Q2 2026 in Review

Osterweis Capital Management reduced its Casella Waste Systems (CWST) stake by 17% in Q2 2026, selling an estimated $2.15M and leaving 123,055 shares worth $11.9M. The position accounts for 0.56% of the portfolio, ranked #64.

Osterweis Capital Management first reported a position in CWST in Q3 2025 and has held it in 4 quarters since. The position peaked at $15.7M in Q4 2025. 417 funds tracked by Wall St. Rank hold CWST as of Q2 2026.

  • Osterweis Capital Management held 123,055 shares of Casella Waste Systems worth $11.9M as of Q2 2026.
  • Osterweis Capital Management sold 25,215 Casella Waste Systems shares in Q2 2026, an estimated $2.15M.
  • Casella Waste Systems made up 0.56% of Osterweis Capital Management's portfolio in Q2 2026, its #64 holding.
  • Osterweis Capital Management first reported a position in Casella Waste Systems in Q3 2025 and has held it in 4 quarters since.
  • Osterweis Capital Management's Casella Waste Systems position peaked at $15.7M in Q4 2025.
  • 417 funds tracked by Wall St. Rank held Casella Waste Systems as of Q2 2026.

Based on Osterweis Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.