Adage Capital Partners
AVTR icon

Adage Capital Partners’s Avantor AVTR Stock Holding History

Adage 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
2025
Q3 		– Sell
-760,000
Closed -$10.2M – 888
2025
Q2 		$10.2M Buy
760,000
+460,000
+153% +$6.29M 0.02% 612
2025
Q1 		$4.86M Buy
+300,000
New +$5.68M 0.01% 701
2024
Q3 		– Sell
-1,000,000
Closed -$21.2M – 876
2024
Q2 		$21.2M Buy
1,000,000
+199,900
+25% +$4.81M 0.04% 417
2024
Q1 		$20.5M Sell
800,100
-600,000
-43% -$14.3M 0.04% 444
2023
Q4 		$32M Buy
1,400,100
+600,100
+75% +$12.3M 0.07% 303
2023
Q3 		$16.9M Buy
+800,000
New +$17M 0.04% 437
2023
Q1 		– Sell
-500,000
Closed -$10.5M – 922
2022
Q4 		$10.5M Buy
+500,000
New +$10.4M 0.03% 620
2022
Q2 		– Sell
-500,000
Closed -$16.9M – 1081
2022
Q1 		$16.9M Sell
500,000
-600,000
-55% -$21.4M 0.03% 542
2021
Q4 		$46.4M Sell
1,100,000
-200,000
-15% -$7.88M 0.08% 244
2021
Q3 		$53.2M Buy
1,300,000
+100,000
+8% +$3.91M 0.1% 204
2021
Q2 		$42.6M Hold
1,200,000
– – 0.08% 249
2021
Q1 		$34.7M Sell
1,200,000
-150,000
-11% -$4.33M 0.07% 299
2020
Q4 		$38M Buy
1,350,000
+750,000
+125% +$19.3M 0.08% 264
2020
Q3 		$13.5M Sell
600,000
-200,000
-25% -$4.16M 0.03% 468
2020
Q2 		$13.6M Buy
800,000
+100,000
+14% +$1.63M 0.03% 475
2020
Q1 		$8.74M Buy
+700,000
New +$11.2M 0.03% 494

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

Adage Capital Partners's AVTR Position: Q3 2025 in Review

Adage Capital Partners sold out of Avantor (AVTR) in Q3 2025, closing a stake of 760,000 shares — an estimated $10.2M sold.

Adage Capital Partners first reported a position in AVTR in Q1 2020 and held it in 16 quarters. The position peaked at $53.2M in Q3 2021. 466 funds tracked by Wall St. Rank hold AVTR as of Q3 2025.

  • Adage Capital Partners reported no remaining Avantor position as of Q3 2025 after selling out during the quarter.
  • Adage Capital Partners sold 760,000 Avantor shares in Q3 2025, an estimated $10.2M.
  • Adage Capital Partners first reported a position in Avantor in Q1 2020 and held it in 16 quarters.
  • Adage Capital Partners's Avantor position peaked at $53.2M in Q3 2021.
  • 466 funds tracked by Wall St. Rank held Avantor as of Q3 2025.

Based on Adage Capital Partners's 13F filing for Q3 2025, filed 14 Nov 2025.