CCP
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Clarkston Capital Partners’s Avantor AVTR Stock Holding History

Clarkston Capital Partners’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
2026
Q2 		$67.2M Sell
6,789,314
-1,840,075
-21% -$15.8M 5.68% 4
2026
Q1 		$67.7M Sell
8,629,389
-6,475,676
-43% -$63.7M 5.16% 4
2025
Q4 		$173M Buy
15,105,065
+84,740
+0.6% +$1.04M 4.01% 4
2025
Q3 		$187M Buy
15,020,325
+1,038,235
+7% +$13.4M 4.04% 4
2025
Q2 		$188M Buy
13,982,090
+4,390,140
+46% +$60.1M 4% 6
2025
Q1 		$155M Buy
9,591,950
+1,446,125
+18% +$27.4M 3.07% 12
2024
Q4 		$172M Buy
8,145,825
+2,473,395
+44% +$55.6M 3.29% 10
2024
Q3 		$147M Sell
5,672,430
-87,940
-2% -$2.16M 2.7% 15
2024
Q2 		$122M Sell
5,760,370
-91,250
-2% -$2.2M 2.33% 17
2024
Q1 		$150M Buy
5,851,620
+7,573
+0.1% +$180K 2.64% 15
2023
Q4 		$133M Buy
5,844,047
+4,110,295
+237% +$84.2M 2.47% 15
2023
Q3 		$36.5M Buy
1,733,752
+396,847
+30% +$8.44M 0.72% 28
2023
Q2 		$27.5M Buy
1,336,905
+267,980
+25% +$5.42M 0.49% 33
2023
Q1 		$22.6M Buy
+1,068,925
New +$24.4M 0.42% 34

Other funds holding AVTR

Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 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
GA
Greenhaven Associates Purchase, New York $8.66B AUM 17.37% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
ECM
Engine Capital Management New York $1.03B AUM 4.33% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
NMC
New Mountain Capital New York $139M AUM 26.45% 1-Year Est. Return

Clarkston Capital Partners's AVTR Position: Q2 2026 in Review

Clarkston Capital Partners reduced its Avantor (AVTR) stake by 21% in Q2 2026, selling an estimated $15.8M and leaving 6,789,314 shares worth $67.2M. The position accounts for 5.68% of the portfolio, ranked #4.

Clarkston Capital Partners first reported a position in AVTR in Q1 2023 and has held it in 14 quarters since. The position peaked at $188M in Q2 2025. 459 funds tracked by Wall St. Rank hold AVTR as of Q2 2026.

  • Clarkston Capital Partners held 6,789,314 shares of Avantor worth $67.2M as of Q2 2026.
  • Clarkston Capital Partners sold 1,840,075 Avantor shares in Q2 2026, an estimated $15.8M.
  • Avantor made up 5.68% of Clarkston Capital Partners's portfolio in Q2 2026, its #4 holding.
  • Clarkston Capital Partners first reported a position in Avantor in Q1 2023 and has held it in 14 quarters since.
  • Clarkston Capital Partners's Avantor position peaked at $188M in Q2 2025.
  • 459 funds tracked by Wall St. Rank held Avantor as of Q2 2026.

Based on Clarkston Capital Partners's 13F filing for Q2 2026, filed 11 Aug 2026.