SEI Investments’s Axcelis ACLS Stock Holding History

SEI Investments’s Portfolio ACLS Stock Details ACLS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$4.19M	Buy	45,035 +17,059	+61%	+$1.51M	﹤0.01%	1640
2025 Q4	$2.25M	Buy	27,976 +13,900	+99%	+$1.16M	﹤0.01%	1789
2025 Q3	$1.37M	Buy	14,076 +3,665	+35%	+$295K	﹤0.01%	1843
2025 Q2	$726K	Sell	10,411 -147,771	-93%	-$8.43M	﹤0.01%	2053
2025 Q1	$7.86M	Buy	158,182 +13,015	+9%	+$823K	0.01%	1076
2024 Q4	$10.1M	Buy	145,167 +40,879	+39%	+$3.39M	0.01%	977
2024 Q3	$10.9M	Buy	104,288 +29,597	+40%	+$3.46M	0.01%	951
2024 Q2	$10.6M	Sell	74,691 -70,061	-48%	-$8.08M	0.02%	885
2024 Q1	$16.1M	Buy	144,752 +43,020	+42%	+$5.13M	0.02%	702
2023 Q4	$13.2M	Buy	101,732 +33,314	+49%	+$4.59M	0.02%	758
2023 Q3	$11.2M	Sell	68,418 -11,876	-15%	-$2.09M	0.02%	796
2023 Q2	$14.7M	Buy	80,294 +21,680	+37%	+$3.12M	0.03%	693
2023 Q1	$7.81M	Buy	58,614 +5,893	+11%	+$692K	0.01%	978
2022 Q4	$4.18M	Sell	52,721 -5,432	-9%	-$383K	0.01%	1136
2022 Q3	$3.52M	Buy	58,153 +8,644	+17%	+$558K	0.01%	1266
2022 Q2	$2.74M	Sell	49,509 -3,169	-6%	-$184K	0.01%	1399
2022 Q1	$3.99M	Buy	52,678 +9,977	+23%	+$682K	0.01%	1224
2021 Q4	$3.18M	Buy	42,701 +24,037	+129%	+$1.42M	0.01%	1361
2021 Q3	$878K	Hold	18,664	–	–	﹤0.01%	1826
2021 Q2	$754K	Hold	18,664	–	–	﹤0.01%	1925
2021 Q1	$767K	Hold	18,664	–	–	﹤0.01%	1863
2020 Q4	$543K	Sell	18,664 -105	-0.6%	-$2.72K	﹤0.01%	1937
2020 Q3	$413K	Buy	18,769 +271	+1%	+$6.91K	﹤0.01%	1964
2020 Q2	$464K	Buy	18,498 +6,329	+52%	+$154K	﹤0.01%	1886
2020 Q1	$223K	Buy	+12,169	New	+$283K	﹤0.01%	2074
2019 Q1	–	Sell	-266	Closed	-$5K	–	2890
2018 Q4	$5K	Hold	266	–	–	﹤0.01%	2578
2018 Q3	$5K	Buy	266 +190	+250%	+$3.91K	﹤0.01%	2450
2018 Q2	$2K	Buy	76 +66	+660%	+$1.45K	﹤0.01%	3323
2018 Q1	$0	Sell	10 -1	-9%	-$26	﹤0.01%	3440
2017 Q4	$1K	Sell	11 -149	-93%	-$4.69K	﹤0.01%	3175
2017 Q3	$5K	Buy	160 +150	+1,500%	+$3.32K	﹤0.01%	2822
2017 Q2	$0	Hold	10	–	–	﹤0.01%	3044
2017 Q1	$0	Sell	10 -80,950	-100%	-$1.27M	﹤0.01%	2889
2016 Q4	$898K	Buy	80,960 +1,855	+2%	+$25.2K	﹤0.01%	1404
2016 Q3	$1.05M	Buy	79,105 +19,508	+33%	+$226K	0.01%	1243
2016 Q2	$641K	Buy	+59,597	New	+$639K	﹤0.01%	1283

Other funds holding ACLS

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

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return

Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return

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

BNP Paribas Asset Management Paris, France $86.1B AUM 29.11% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

SEI Investments's ACLS Position: Q1 2026 in Review

SEI Investments increased its Axcelis (ACLS) stake by 61% in Q1 2026, buying an estimated $1.51M and bringing the position to 45,035 shares worth $4.19M. The position accounts for ﹤0.01% of the portfolio, ranked #1640.

SEI Investments first reported a position in ACLS in Q2 2016 and has held it in 36 quarters since. The position peaked at $16.1M in Q1 2024. 377 funds tracked by Wall St. Rank hold ACLS as of Q1 2026.

SEI Investments held 45,035 shares of Axcelis worth $4.19M as of Q1 2026.
SEI Investments bought 17,059 Axcelis shares in Q1 2026, an estimated $1.51M.
Axcelis made up ﹤0.01% of SEI Investments's portfolio in Q1 2026, its #1640 holding.
SEI Investments first reported a position in Axcelis in Q2 2016 and has held it in 36 quarters since.
SEI Investments's Axcelis position peaked at $16.1M in Q1 2024.
377 funds tracked by Wall St. Rank held Axcelis as of Q1 2026.

Based on SEI Investments's 13F filing for Q1 2026, filed 13 May 2026.