Burns Matteson Capital Management’s Avantor AVTR Stock Holding History

Burns Matteson 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 Q1	–	Sell	-46,407	Closed	-$532K	–	202
2025 Q4	$532K	Buy	+46,407	New	+$571K	0.19%	103
2023 Q4	–	Sell	-29,257	Closed	-$617K	–	138
2023 Q3	$617K	Buy	+29,257	New	+$622K	0.39%	57
2023 Q2	–	Sell	-28,357	Closed	-$599K	–	143
2023 Q1	$599K	Sell	28,357 -510	-2%	-$11.6K	0.38%	71
2022 Q4	$609K	Buy	+28,867	New	+$598K	0.4%	74

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

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

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

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return

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 Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Burns Matteson Capital Management's AVTR Position: Q1 2026 in Review

Burns Matteson Capital Management sold out of Avantor (AVTR) in Q1 2026, closing a stake of 46,407 shares — an estimated $532K sold.

Burns Matteson Capital Management first reported a position in AVTR in Q4 2022 and held it in 4 quarters. The position peaked at $617K in Q3 2023. 433 funds tracked by Wall St. Rank hold AVTR as of Q1 2026.

Burns Matteson Capital Management reported no remaining Avantor position as of Q1 2026 after selling out during the quarter.
Burns Matteson Capital Management sold 46,407 Avantor shares in Q1 2026, an estimated $532K.
Burns Matteson Capital Management first reported a position in Avantor in Q4 2022 and held it in 4 quarters.
Burns Matteson Capital Management's Avantor position peaked at $617K in Q3 2023.
433 funds tracked by Wall St. Rank held Avantor as of Q1 2026.

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