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Summit Trail Advisors’s Avantor AVTR Stock Holding History

Summit Trail Advisors’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 		$1.45M Buy
146,193
+63,036
+76% +$543K 0.02% 809
2026
Q1 		$652K Buy
83,157
+35,606
+75% +$350K 0.01% 1084
2025
Q4 		$545K Buy
47,551
+13,397
+39% +$165K 0.01% 1045
2025
Q3 		$426K Sell
34,154
-22,620
-40% -$291K 0.01% 1126
2025
Q2 		$764K Buy
56,774
+35,515
+167% +$486K 0.01% 570
2025
Q1 		$345K Buy
+21,259
New +$403K 0.01% 297

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

Summit Trail Advisors's AVTR Position: Q2 2026 in Review

Summit Trail Advisors increased its Avantor (AVTR) stake by 76% in Q2 2026, buying an estimated $543K and bringing the position to 146,193 shares worth $1.45M. The position accounts for 0.02% of the portfolio, ranked #809.

Summit Trail Advisors first reported a position in AVTR in Q1 2025 and has held it in 6 quarters since. 460 funds tracked by Wall St. Rank hold AVTR as of Q2 2026.

  • Summit Trail Advisors held 146,193 shares of Avantor worth $1.45M as of Q2 2026.
  • Summit Trail Advisors bought 63,036 Avantor shares in Q2 2026, an estimated $543K.
  • Avantor made up 0.02% of Summit Trail Advisors's portfolio in Q2 2026, its #809 holding.
  • Summit Trail Advisors first reported a position in Avantor in Q1 2025 and has held it in 6 quarters since.
  • 460 funds tracked by Wall St. Rank held Avantor as of Q2 2026.

Based on Summit Trail Advisors's 13F filing for Q2 2026, filed 11 Aug 2026.