Axcelis Technologies, Inc.

Historical 13F Holders

Symbol
ACLS
CUSIP
054540208
All holders as of
Q2 2026
Type
Equity
Class
COM NEW
Reported Value, Excluding Options
Total Shares Held, Excluding Options
Total Filers

13D/G Filers

Each filer's latest filing for 054540208 since 12/18/2024, largest first.

Filer % of Class Filed
BlackRock, Inc. 13G/A 15.3% 4/29/2025
Event 3/31/2025
FMR LLC 13G/A
11.4% 11/5/2026
Event 9/30/2026
Vanguard Portfolio Management LLC 13G 8.1% 4/28/2026
Event 3/31/2026
Vanguard Capital Management LLC 13G 5.3% 4/29/2026
Event 3/31/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (3)
American Century Investment Management, Inc. 13G/A
4.3% 11/14/2025
Event 9/30/2025
Reinhart Partners, LLC. 13G/A 3.0% 7/14/2026
Event 6/30/2026
Vanguard Group Inc 13G/A 0% 3/26/2026
Event 3/13/2026

13F Holders by Quarter

Period Filers Shares, Excl. Options Value, Excl. Options
2026 Q3 147 4.16 M $546 M
2026 Q2 447 37.7 M $5.91 B
2026 Q1 388 32.6 M $3.03 B
2025 Q4 376 31.3 M $2.52 B
2025 Q3 368 30.6 M $2.98 B
2025 Q2 337 31.9 M $2.22 B
2025 Q1 313 31.1 M $1.54 B
2024 Q4 331 30.9 M $2.16 B
2024 Q3 373 30.5 M $3.19 B
2024 Q2 396 31.5 M $4.47 B
2024 Q1 389 32.0 M $3.57 B
2023 Q4 424 30.9 M $4.00 B
2023 Q3 424 29.8 M $4.85 B
2023 Q2 413 29.5 M $5.41 B
2023 Q1 386 30.2 M $4.00 B
2022 Q4 334 30.5 M $2.41 B
2022 Q3 292 28.5 M $1.73 B
2022 Q2 282 27.7 M $1.52 B
2022 Q1 295 27.5 M $2.08 B
2021 Q4 257 27.7 M $2.06 B
2021 Q3 207 29.1 M $1.37 B
2021 Q2 190 28.9 M $1.17 B
2021 Q1 194 29.2 M $1.20 B
2020 Q4 173 30.4 M $884 M
2020 Q3 178 28.3 M $623 M
2020 Q2 178 28.3 M $788 M
2020 Q1 142 28.8 M $527 M
2019 Q4 142 28.6 M $689 M
2019 Q3 147 26.6 M $455 M
2019 Q2 137 26.9 M $405 M
2019 Q1 149 27.1 M $546 M
2018 Q4 140 28.0 M $499 M
2018 Q3 159 28.4 M $558 M
2018 Q2 167 28.8 M $570 M
2018 Q1 165 28.4 M $699 M
2017 Q4 182 28.7 M $824 M
2017 Q3 150 25.0 M $684 M
2017 Q2 131 24.0 M $502 M
2017 Q1 100 22.7 M $426 M
2016 Q4 87 22.2 M $322 M
2016 Q3 80 20.5 M $272 M
2016 Q2 16 20.5 M $55.2 M
2015 Q3 1 11.7 M $31.2 M