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Prosight Management’s Avantor AVTR Stock Holding History

Prosight 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
2026
Q1 		– Sell
-898,499
Closed -$10.3M – 47
2025
Q4 		$10.3M Buy
+898,499
New +$11.1M 2.13% 19
2022
Q4 		– Sell
-122,668
Closed -$2.4M – 42
2022
Q3 		$2.4M Buy
+122,668
New +$3.29M 1.29% 23

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

Prosight Management's AVTR Position: Q1 2026 in Review

Prosight Management sold out of Avantor (AVTR) in Q1 2026, closing a stake of 898,499 shares — an estimated $10.3M sold.

Prosight Management first reported a position in AVTR in Q3 2022 and held it in 2 quarters. The position peaked at $10.3M in Q4 2025. 433 funds tracked by Wall St. Rank hold AVTR as of Q1 2026.

  • Prosight Management reported no remaining Avantor position as of Q1 2026 after selling out during the quarter.
  • Prosight Management sold 898,499 Avantor shares in Q1 2026, an estimated $10.3M.
  • Prosight Management first reported a position in Avantor in Q3 2022 and held it in 2 quarters.
  • Prosight Management's Avantor position peaked at $10.3M in Q4 2025.
  • 433 funds tracked by Wall St. Rank held Avantor as of Q1 2026.

Based on Prosight Management's 13F filing for Q1 2026, filed 15 May 2026.