Ken Griffin
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Ken Griffin’s Avantor AVTR Stock Holding History

Ken Griffin’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
Q1 		$498K Sell
63,500
-303,500
-83% -$2.99M ﹤0.01% 9327
2025
Q4 		$4.21M Buy
367,000
+15,800
+4% +$194K ﹤0.01% 4560
2025
Q3 		$4.38M Buy
351,200
+113,100
+48% +$1.46M ﹤0.01% 4595
2025
Q2 		$3.2M Buy
238,100
+48,500
+26% +$664K ﹤0.01% 4872
2025
Q1 		$3.07M Sell
189,600
-131,300
-41% -$2.49M ﹤0.01% 4724
2024
Q4 		$6.76M Buy
320,900
+8,100
+3% +$182K ﹤0.01% 3503
2024
Q3 		$8.09M Sell
312,800
-301,600
-49% -$7.4M ﹤0.01% 3231
2024
Q2 		$13M Sell
614,400
-2,857,200
-82% -$68.8M ﹤0.01% 2467
2024
Q1 		$88.8M Buy
3,471,600
+3,097,900
+829% +$73.7M 0.02% 779
2023
Q4 		$8.53M Sell
373,700
-112,300
-23% -$2.3M ﹤0.01% 3065
2023
Q3 		$10.2M Buy
486,000
+400,300
+467% +$8.51M ﹤0.01% 2663
2023
Q2 		$1.76M Buy
85,700
+56,300
+191% +$1.14M ﹤0.01% 5376
2023
Q1 		$622K Buy
29,400
+11,000
+60% +$251K ﹤0.01% 7859
2022
Q4 		$388K Sell
18,400
-15,400
-46% -$319K ﹤0.01% 8781
2022
Q3 		$662K Buy
33,800
+16,700
+98% +$447K ﹤0.01% 7859
2022
Q2 		$532K Sell
17,100
-23,700
-58% -$740K ﹤0.01% 8502
2022
Q1 		$1.38M Buy
40,800
+7,200
+21% +$257K ﹤0.01% 6921
2021
Q4 		$1.42M Sell
33,600
-18,200
-35% -$717K ﹤0.01% 7026
2021
Q3 		$2.12M Buy
51,800
+4,600
+10% +$180K ﹤0.01% 6201
2021
Q2 		$1.68M Sell
47,200
-21,100
-31% -$682K ﹤0.01% 7039
2021
Q1 		$1.98M Buy
68,300
+5,700
+9% +$165K ﹤0.01% 6413
2020
Q4 		$1.76M Buy
62,600
+1,400
+2% +$36.1K ﹤0.01% 5620
2020
Q3 		$1.38M Buy
61,200
+37,500
+158% +$780K ﹤0.01% 5426
2020
Q2 		$403K Sell
23,700
-2,200
-8% -$35.8K ﹤0.01% 7437
2020
Q1 		$323K Buy
25,900
+8,100
+46% +$130K ﹤0.01% 7196
2019
Q4 		$323K Buy
+17,800
New +$283K ﹤0.01% 7474

Other funds holding AVTR

Dodge & Cox
Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
GA
Greenhaven Associates Purchase, New York $8.66B AUM 17.37% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
ECM
Engine Capital Management New York $828M AUM 6.49% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Ken Griffin's AVTR Position: Q1 2026 in Review

Ken Griffin reduced its Avantor (AVTR) stake by 54% in Q1 2026, selling an estimated $6.64M and leaving 569,511 shares worth $4.46M. The position accounts for ﹤0.01% of the portfolio, ranked #4531.

Ken Griffin first reported a position in AVTR in Q2 2019 and has held it in 27 quarters since. The position peaked at $191M in Q4 2020. 430 funds tracked by Wall St. Rank hold AVTR as of Q1 2026.

  • Ken Griffin held 569,511 shares of Avantor worth $4.46M as of Q1 2026.
  • Ken Griffin sold 674,445 Avantor shares in Q1 2026, an estimated $6.64M.
  • Avantor made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #4531 holding.
  • Ken Griffin first reported a position in Avantor in Q2 2019 and has held it in 27 quarters since.
  • Ken Griffin's Avantor position peaked at $191M in Q4 2020.
  • 430 funds tracked by Wall St. Rank held Avantor as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.