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John Overdeck’s Avantor AVTR Stock Holding History

John Overdeck’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 		– Sell
-412,713
Closed -$4.73M – 4581
2025
Q4 		$4.73M Buy
412,713
+129,831
+46% +$1.6M 0.01% 1762
2025
Q3 		$3.53M Sell
282,882
-2,702
-0.9% -$34.8K 0.01% 1734
2025
Q2 		$3.84M Buy
285,584
+219,972
+335% +$3.01M 0.01% 1409
2025
Q1 		$1.06M Buy
65,612
+49,310
+302% +$934K ﹤0.01% 2141
2024
Q4 		$343K Sell
16,302
-14,319
-47% -$322K ﹤0.01% 2692
2024
Q3 		$792K Buy
+30,621
New +$752K ﹤0.01% 2245
2023
Q4 		– Sell
-34,200
Closed -$721K – 3144
2023
Q3 		$721K Sell
34,200
-32,317
-49% -$687K ﹤0.01% 2111
2023
Q2 		$1.37M Sell
66,517
-128,053
-66% -$2.59M ﹤0.01% 1760
2023
Q1 		$4.11M Sell
194,570
-949,955
-83% -$21.6M 0.01% 1008
2022
Q4 		$24.1M Buy
1,144,525
+896,567
+362% +$18.6M 0.08% 301
2022
Q3 		$4.86M Buy
+247,958
New +$6.64M 0.02% 769
2022
Q2 		– Sell
-673,420
Closed -$22.8M – 2503
2022
Q1 		$22.8M Sell
673,420
-938,529
-58% -$33.5M 0.07% 356
2021
Q4 		$67.9M Sell
1,611,949
-83,470
-5% -$3.29M 0.15% 170
2021
Q3 		$69.3M Buy
1,695,419
+1,220,566
+257% +$47.7M 0.16% 154
2021
Q2 		$16.9M Sell
474,853
-881,360
-65% -$28.5M 0.04% 561
2021
Q1 		$39.2M Sell
1,356,213
-733,123
-35% -$21.2M 0.1% 230
2020
Q4 		$58.8M Buy
2,089,336
+1,478,999
+242% +$38.1M 0.17% 137
2020
Q3 		$13.7M Buy
610,337
+462,673
+313% +$9.62M 0.05% 410
2020
Q2 		$2.51M Buy
+147,664
New +$2.4M 0.01% 985
2019
Q3 		– Sell
-502,519
Closed -$9.59M – 3440
2019
Q2 		$9.59M Buy
+502,519
New +$8.95M 0.03% 614

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
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 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 $33B AUM 40.62% 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 $1.03B AUM 4.33% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

John Overdeck's AVTR Position: Q1 2026 in Review

John Overdeck sold out of Avantor (AVTR) in Q1 2026, closing a stake of 412,713 shares — an estimated $4.73M sold.

John Overdeck first reported a position in AVTR in Q2 2019 and held it in 20 quarters. The position peaked at $69.3M in Q3 2021. 431 funds tracked by Wall St. Rank hold AVTR as of Q1 2026.

  • John Overdeck reported no remaining Avantor position as of Q1 2026 after selling out during the quarter.
  • John Overdeck sold 412,713 Avantor shares in Q1 2026, an estimated $4.73M.
  • John Overdeck first reported a position in Avantor in Q2 2019 and held it in 20 quarters.
  • John Overdeck's Avantor position peaked at $69.3M in Q3 2021.
  • 431 funds tracked by Wall St. Rank held Avantor as of Q1 2026.

Based on Two Sigma Investments's 13F filing for Q1 2026, filed 15 May 2026.