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SummitTX Capital’s Avantor AVTR Stock Holding History

SummitTX Capital’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 		$310K Buy
+31,285
New +$269K 0.01% 668
2025
Q4 		– Sell
-73,800
Closed -$921K – 701
2025
Q3 		$921K Buy
+73,800
New +$951K 0.04% 406

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

SummitTX Capital's AVTR Position: Q2 2026 in Review

SummitTX Capital opened a new position in Avantor (AVTR) in Q2 2026: 31,285 shares worth $310K. The stake represents 0.01% of the portfolio and ranks #668 among its holdings. This is a return to the name: SummitTX Capital previously reported a position in AVTR as recently as Q3 2025.

SummitTX Capital first reported a position in AVTR in Q3 2025 and has held it in 2 quarters since. The position peaked at $921K in Q3 2025. 460 funds tracked by Wall St. Rank hold AVTR as of Q2 2026.

  • SummitTX Capital held 31,285 shares of Avantor worth $310K as of Q2 2026.
  • Avantor was a new SummitTX Capital position in Q2 2026.
  • Avantor made up 0.01% of SummitTX Capital's portfolio in Q2 2026, its #668 holding.
  • SummitTX Capital first reported a position in Avantor in Q3 2025 and has held it in 2 quarters since.
  • SummitTX Capital's Avantor position peaked at $921K in Q3 2025.
  • 460 funds tracked by Wall St. Rank held Avantor as of Q2 2026.

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