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Daniel Sundheim’s Clean Harbors CLH Stock Holding History

Daniel Sundheim’s Portfolio CLH Stock Details CLH Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$393M Sell
1,315,501
-22,780
-2% -$6.73M 1.13% 13
2026
Q1 		$384M Sell
1,338,281
-1,443,601
-52% -$394M 3.42% 7
2025
Q4 		$652M Buy
2,781,882
+336,299
+14% +$76.8M 6.1% 2
2025
Q3 		$568M Buy
2,445,583
+1,001,946
+69% +$237M 6.52% 3
2025
Q2 		$334M Buy
1,443,637
+1,250,615
+648% +$274M 4.63% 6
2025
Q1 		$38M Buy
+193,022
New +$42.2M 0.58% 34

Other funds holding CLH

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
JT
Jupiter Topco New York $245B AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
ClearBridge Investments
ClearBridge Investments New York $121B AUM 27.52% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return

Daniel Sundheim's CLH Position: Q2 2026 in Review

Daniel Sundheim reduced its Clean Harbors (CLH) stake by 1.7% in Q2 2026, selling an estimated $6.73M and leaving 1,315,501 shares worth $393M. The position accounts for 1.13% of the portfolio, ranked #13.

Daniel Sundheim first reported a position in CLH in Q1 2025 and has held it in 6 quarters since. The position peaked at $652M in Q4 2025. 655 funds tracked by Wall St. Rank hold CLH as of Q2 2026.

  • Daniel Sundheim held 1,315,501 shares of Clean Harbors worth $393M as of Q2 2026.
  • Daniel Sundheim sold 22,780 Clean Harbors shares in Q2 2026, an estimated $6.73M.
  • Clean Harbors made up 1.13% of Daniel Sundheim's portfolio in Q2 2026, its #13 holding.
  • Daniel Sundheim first reported a position in Clean Harbors in Q1 2025 and has held it in 6 quarters since.
  • Daniel Sundheim's Clean Harbors position peaked at $652M in Q4 2025.
  • 655 funds tracked by Wall St. Rank held Clean Harbors as of Q2 2026.

Based on D1 Capital Partners's 13F filing for Q2 2026, filed 14 Aug 2026.