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Ostrum Asset Management’s Avantor AVTR Stock Holding History

Ostrum Asset Management’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
-10,978
Closed -$148K – 573
2025
Q2 		$148K Sell
10,978
-313
-3% -$4.28K 0.01% 512
2025
Q1 		$183K Sell
11,291
-6,129
-35% -$116K 0.01% 510
2024
Q4 		$367K Sell
17,420
-29,743
-63% -$669K 0.03% 434
2024
Q3 		$1.22M Sell
47,163
-4,789
-9% -$118K 0.1% 280
2024
Q2 		$1.1M Sell
51,952
-165
-0.3% -$3.97K 0.1% 289
2024
Q1 		$1.33M Buy
52,117
+3,430
+7% +$81.6K 0.11% 292
2023
Q4 		$1.11M Sell
48,687
-1,403
-3% -$28.7K 0.1% 298
2023
Q3 		$1.06M Sell
50,090
-14,008
-22% -$298K 0.1% 296
2023
Q2 		$1.32M Buy
64,098
+53
+0.1% +$1.07K 0.11% 252
2023
Q1 		$1.35M Buy
+64,045
New +$1.46M 0.12% 243

Other funds holding AVTR

Dodge & Cox
Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
ECM
Engine Capital Management New York $1.03B AUM 4.33% 1-Year Est. Return
GA
Greenhaven Associates Purchase, New York $8.66B AUM 17.37% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
CCP
Clarkston Capital Partners Rochester, Michigan $1.18B AUM 0.37% 1-Year Est. Return

Ostrum Asset Management's AVTR Position: Q3 2025 in Review

Ostrum Asset Management sold out of Avantor (AVTR) in Q3 2025, closing a stake of 10,978 shares — an estimated $148K sold.

Ostrum Asset Management first reported a position in AVTR in Q1 2023 and held it in 10 quarters. The position peaked at $1.35M in Q1 2023. 466 funds tracked by Wall St. Rank hold AVTR as of Q3 2025.

  • Ostrum Asset Management reported no remaining Avantor position as of Q3 2025 after selling out during the quarter.
  • Ostrum Asset Management sold 10,978 Avantor shares in Q3 2025, an estimated $148K.
  • Ostrum Asset Management first reported a position in Avantor in Q1 2023 and held it in 10 quarters.
  • Ostrum Asset Management's Avantor position peaked at $1.35M in Q1 2023.
  • 466 funds tracked by Wall St. Rank held Avantor as of Q3 2025.

Based on Ostrum Asset Management's 13F filing for Q3 2025, filed 14 Nov 2025.