Rock Creek Group’s Avantor AVTR Stock Holding History

Rock Creek Group’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	$495K	Sell	50,000 -50,000	-50%	-$430K	0.05%	50
2026 Q1	$784K	Buy	100,000 +75,000	+300%	+$738K	0.08%	43
2025 Q4	$908K	Sell	25,000 -75,000	-75%	-$923K	0.1%	37
2025 Q3	$1.25M	Buy	+100,000	New	+$1.29M	0.13%	35
2022 Q1	–	Sell	-20,899	Closed	-$780K	–	180
2021 Q4	$780K	Buy	+20,899	New	+$824K	0.12%	69

Other funds holding AVTR

Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Greenhaven Associates Purchase, New York $8.66B AUM 17.37% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

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 Dallas, Texas $33B AUM 40.62% 1-Year Est. Return

NMC

New Mountain Capital New York $139M AUM 26.45% 1-Year Est. Return

Rock Creek Group's AVTR Position: Q2 2026 in Review

Rock Creek Group reduced its Avantor (AVTR) stake by 50% in Q2 2026, selling an estimated $430K and leaving 50,000 shares worth $495K. The position accounts for 0.05% of the portfolio, ranked #50.

Rock Creek Group first reported a position in AVTR in Q4 2021 and has held it in 5 quarters since. The position peaked at $1.25M in Q3 2025. 460 funds tracked by Wall St. Rank hold AVTR as of Q2 2026.

Rock Creek Group held 50,000 shares of Avantor worth $495K as of Q2 2026.
Rock Creek Group sold 50,000 Avantor shares in Q2 2026, an estimated $430K.
Avantor made up 0.05% of Rock Creek Group's portfolio in Q2 2026, its #50 holding.
Rock Creek Group first reported a position in Avantor in Q4 2021 and has held it in 5 quarters since.
Rock Creek Group's Avantor position peaked at $1.25M in Q3 2025.
460 funds tracked by Wall St. Rank held Avantor as of Q2 2026.

Based on Rock Creek Group's 13F filing for Q2 2026, filed 3 Aug 2026.