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John G. Ullman & Associates’s Avantor AVTR Stock Holding History

John G. Ullman & Associates’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 		$117K Buy
+11,800
New +$102K 0.01% 180
2025
Q4 		– Sell
-16,300
Closed -$203K – 180
2025
Q3 		$203K Buy
16,300
+4,900
+43% +$63.1K 0.03% 169
2025
Q2 		$153K Sell
11,400
-126,449
-92% -$1.73M 0.02% 173
2025
Q1 		$2.23M Sell
137,849
-4,651
-3% -$88.1K 0.34% 84
2024
Q4 		$3M Buy
142,500
+70,500
+98% +$1.59M 0.44% 73
2024
Q3 		$1.86M Buy
+72,000
New +$1.77M 0.27% 87

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

John G. Ullman & Associates's AVTR Position: Q2 2026 in Review

John G. Ullman & Associates opened a new position in Avantor (AVTR) in Q2 2026: 11,800 shares worth $117K. The stake represents 0.01% of the portfolio and ranks #180 among its holdings. This is a return to the name: John G. Ullman & Associates previously reported a position in AVTR as recently as Q3 2025.

John G. Ullman & Associates first reported a position in AVTR in Q3 2024 and has held it in 6 quarters since. The position peaked at $3M in Q4 2024. 460 funds tracked by Wall St. Rank hold AVTR as of Q2 2026.

  • John G. Ullman & Associates held 11,800 shares of Avantor worth $117K as of Q2 2026.
  • Avantor was a new John G. Ullman & Associates position in Q2 2026.
  • Avantor made up 0.01% of John G. Ullman & Associates's portfolio in Q2 2026, its #180 holding.
  • John G. Ullman & Associates first reported a position in Avantor in Q3 2024 and has held it in 6 quarters since.
  • John G. Ullman & Associates's Avantor position peaked at $3M in Q4 2024.
  • 460 funds tracked by Wall St. Rank held Avantor as of Q2 2026.

Based on John G. Ullman & Associates's 13F filing for Q2 2026, filed 11 Aug 2026.