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Sirios Capital Management’s Clean Harbors CLH Stock Holding History

Sirios Capital Management’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 		$17.5M Buy
58,546
+1,333
+2% +$394K 2.13% 12
2026
Q1 		$16.4M Sell
57,213
-20,767
-27% -$5.67M 1.99% 14
2025
Q4 		$18.3M Buy
77,980
+1,050
+1% +$240K 2.28% 12
2025
Q3 		$17.9M Buy
76,930
+7,742
+11% +$1.83M 2.33% 13
2025
Q2 		$16M Buy
69,188
+8,779
+15% +$1.92M 2.32% 17
2025
Q1 		$11.9M Buy
60,409
+28,562
+90% +$6.25M 2.13% 17
2024
Q4 		$7.33M Sell
31,847
-1,669
-5% -$415K 1.32% 27
2024
Q3 		$8.1M Sell
33,516
-541
-2% -$127K 1.43% 27
2024
Q2 		$7.7M Sell
34,057
-4,779
-12% -$1M 1.34% 29
2024
Q1 		$7.82M Sell
38,836
-19,820
-34% -$3.56M 1.47% 29
2023
Q4 		$10.2M Buy
58,656
+15,585
+36% +$2.56M 2.09% 20
2023
Q3 		$7.21M Buy
43,071
+35,131
+442% +$5.92M 1.37% 32
2023
Q2 		$1.31M Buy
+7,940
New +$1.16M 0.23% 46

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
DCP
D1 Capital Partners New York $34.8B AUM 11.34% 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

Sirios Capital Management's CLH Position: Q2 2026 in Review

Sirios Capital Management increased its Clean Harbors (CLH) stake by 2.3% in Q2 2026, buying an estimated $394K and bringing the position to 58,546 shares worth $17.5M. The position accounts for 2.13% of the portfolio, ranked #12.

Sirios Capital Management first reported a position in CLH in Q2 2023 and has held it in 13 quarters since. The position peaked at $18.3M in Q4 2025. 660 funds tracked by Wall St. Rank hold CLH as of Q2 2026.

  • Sirios Capital Management held 58,546 shares of Clean Harbors worth $17.5M as of Q2 2026.
  • Sirios Capital Management bought 1,333 Clean Harbors shares in Q2 2026, an estimated $394K.
  • Clean Harbors made up 2.13% of Sirios Capital Management's portfolio in Q2 2026, its #12 holding.
  • Sirios Capital Management first reported a position in Clean Harbors in Q2 2023 and has held it in 13 quarters since.
  • Sirios Capital Management's Clean Harbors position peaked at $18.3M in Q4 2025.
  • 660 funds tracked by Wall St. Rank held Clean Harbors as of Q2 2026.

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