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ADAR1 Capital Management’s Avantor AVTR Stock Holding History

ADAR1 Capital 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
Q2 		$1.29M Buy
130,000
+50,000
+63% +$430K 0.06% 158
2026
Q1 		$627K Buy
80,000
+10,000
+14% +$98.4K 0.04% 192
2025
Q4 		$802K Buy
70,000
+45,000
+180% +$554K 0.06% 150
2025
Q3 		$312K Buy
25,000
+15,000
+150% +$193K 0.03% 161
2025
Q2 		$135K Buy
+10,000
New +$137K 0.02% 168

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
GA
Greenhaven Associates Purchase, New York $8.66B AUM 17.37% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
ECM
Engine Capital Management New York $1.03B AUM 4.33% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
NMC
New Mountain Capital New York $139M AUM 26.45% 1-Year Est. Return

ADAR1 Capital Management's AVTR Position: Q2 2026 in Review

ADAR1 Capital Management increased its Avantor (AVTR) stake by 63% in Q2 2026, buying an estimated $430K and bringing the position to 130,000 shares worth $1.29M. The position accounts for 0.06% of the portfolio, ranked #158.

ADAR1 Capital Management first reported a position in AVTR in Q2 2025 and has held it in 5 quarters since. 459 funds tracked by Wall St. Rank hold AVTR as of Q2 2026.

  • ADAR1 Capital Management held 130,000 shares of Avantor worth $1.29M as of Q2 2026.
  • ADAR1 Capital Management bought 50,000 Avantor shares in Q2 2026, an estimated $430K.
  • Avantor made up 0.06% of ADAR1 Capital Management's portfolio in Q2 2026, its #158 holding.
  • ADAR1 Capital Management first reported a position in Avantor in Q2 2025 and has held it in 5 quarters since.
  • 459 funds tracked by Wall St. Rank held Avantor as of Q2 2026.

Based on ADAR1 Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.