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Dudley & Shanley’s Avantor AVTR Stock Holding History

Dudley & Shanley’s Portfolio AVTR Stock Details AVTR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-131,000
Closed -$1.76M – 33
2025
Q2 		$1.76M Sell
131,000
-1,060,617
-89% -$14.5M 0.28% 32
2025
Q1 		$19.3M Buy
1,191,617
+105,490
+10% +$2M 3.04% 16
2024
Q4 		$22.9M Hold
1,086,127
– – 3.53% 13
2024
Q3 		$28.1M Hold
1,086,127
– – 4.39% 9
2024
Q2 		$23M Sell
1,086,127
-25,228
-2% -$607K 3.96% 12
2024
Q1 		$28.4M Buy
1,111,355
+12,400
+1% +$295K 4.8% 5
2023
Q4 		$25.1M Sell
1,098,955
-13,360
-1% -$274K 4.47% 8
2023
Q3 		$23.4M Buy
1,112,315
+53,900
+5% +$1.15M 4.43% 7
2023
Q2 		$21.7M Hold
1,058,415
– – 3.93% 9
2023
Q1 		$22.4M Sell
1,058,415
-5,650
-0.5% -$129K 4.29% 9
2022
Q4 		$22.4M Buy
1,064,065
+408,850
+62% +$8.46M 5.05% 9
2022
Q3 		$12.8M Sell
655,215
-198,800
-23% -$5.33M 3.59% 14
2022
Q2 		$26.6M Sell
854,015
-13,200
-2% -$412K 5.95% 5
2022
Q1 		$29.3M Hold
867,215
– – 5.46% 4
2021
Q4 		$36.5M Sell
867,215
-20,985
-2% -$827K 6.33% 2
2021
Q3 		$36.3M Sell
888,200
-42,400
-5% -$1.66M 6.39% 2
2021
Q2 		$33M Sell
930,600
-4,150
-0.4% -$134K 5.45% 3
2021
Q1 		$27M Buy
934,750
+209,650
+29% +$6.05M 4.67% 11
2020
Q4 		$20.4M Buy
725,100
+476,600
+192% +$12.3M 3.76% 14
2020
Q3 		$5.59M Buy
+248,500
New +$5.17M 1.36% 17

Other funds holding AVTR

Dodge & Cox
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
ECM
Engine Capital Management New York $828M AUM 6.49% 1-Year Est. Return
GA
Greenhaven Associates Purchase, New York $6.07B AUM 11.2% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
CCP
Clarkston Capital Partners Rochester, Michigan $1.31B AUM 3.79% 1-Year Est. Return

Dudley & Shanley's AVTR Position: Q3 2025 in Review

Dudley & Shanley sold out of Avantor (AVTR) in Q3 2025, closing a stake of 131,000 shares — an estimated $1.76M sold.

Dudley & Shanley first reported a position in AVTR in Q3 2020 and held it in 20 quarters. The position peaked at $36.5M in Q4 2021. 465 funds tracked by Wall St. Rank hold AVTR as of Q3 2025.

  • Dudley & Shanley reported no remaining Avantor position as of Q3 2025 after selling out during the quarter.
  • Dudley & Shanley sold 131,000 Avantor shares in Q3 2025, an estimated $1.76M.
  • Dudley & Shanley first reported a position in Avantor in Q3 2020 and held it in 20 quarters.
  • Dudley & Shanley's Avantor position peaked at $36.5M in Q4 2021.
  • 465 funds tracked by Wall St. Rank held Avantor as of Q3 2025.

Based on Dudley & Shanley's 13F filing for Q3 2025, filed 8 Oct 2025.