Simplex Trading’s Avantor AVTR Stock Holding History

Simplex Trading’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	$115K	Buy	14,727 +5,636	+62%	+$55.5K	﹤0.01%	4918
2025 Q4	$104K	Sell	9,091 -20,218	-69%	-$249K	﹤0.01%	4952
2025 Q3	$365K	Sell	29,309 -147,600	-83%	-$1.9M	﹤0.01%	4218
2025 Q2	$2.38M	Buy	+176,909	New	+$2.42M	﹤0.01%	1946
2024 Q2	–	Sell	-148,497	Closed	-$3.58M	–	8750
2024 Q1	$3.8M	Buy	148,497 +103,488	+230%	+$2.46M	﹤0.01%	1822
2023 Q4	$1.03M	Sell	45,009 -44,545	-50%	-$913K	﹤0.01%	2980
2023 Q3	$1.89M	Buy	+89,554	New	+$1.9M	﹤0.01%	2127
2020 Q2	–	Sell	-1,026	Closed	-$16.7K	–	7571
2020 Q1	$12K	Sell	1,026 -1,835	-64%	-$29.4K	﹤0.01%	6333
2019 Q4	$51K	Buy	+2,861	New	+$45.5K	﹤0.01%	5154
2019 Q3	–	Sell	-7,363	Closed	-$125K	–	7221
2019 Q2	$140K	Buy	+7,363	New	+$131K	﹤0.01%	3842

Other funds holding AVTR

Dodge & Cox San Francisco, California $182B AUM 14.68% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Greenhaven Associates Purchase, New York $6.07B AUM 11.2% 1-Year Est. Return

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

ECM

Engine Capital Management New York $828M AUM 6.49% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

Simplex Trading's AVTR Position: Q1 2026 in Review

Simplex Trading increased its Avantor (AVTR) stake by 62% in Q1 2026, buying an estimated $55.5K and bringing the position to 14,727 shares worth $115K. The position accounts for ﹤0.01% of the portfolio, ranked #4918.

Simplex Trading first reported a position in AVTR in Q2 2019 and has held it in 10 quarters since. The position peaked at $3.8M in Q1 2024. 429 funds tracked by Wall St. Rank hold AVTR as of Q1 2026.

Simplex Trading held 14,727 shares of Avantor worth $115K as of Q1 2026.
Simplex Trading bought 5,636 Avantor shares in Q1 2026, an estimated $55.5K.
Avantor made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #4918 holding.
Simplex Trading first reported a position in Avantor in Q2 2019 and has held it in 10 quarters since.
Simplex Trading's Avantor position peaked at $3.8M in Q1 2024.
429 funds tracked by Wall St. Rank held Avantor as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.