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Boston Partners

SEC CIK
0001386060
Latest filing
Aug 4, 2026

ACLS holding history

Axcelis Technologies Inc in every 13F filed by Boston Partners, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

ACLS overviewAll 13F holders of ACLSFull Q2 2026 holdings

Shares (Q2 2026)
303,929
Value
$55.7M
% of portfolio
<0.1%
Quarters held
18
Since Q1 2021
Holdings of ACLS by Boston Partners, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 2026303,929$55.7M<0.1%−36,346−10.7%ReducedHolders
Q1 2026340,275$31.8M<0.1%−82,160−19.4%ReducedHolders
Q4 2025422,435$35.1M<0.1%−46,306−9.9%ReducedHolders
Q3 2025468,741$44.9M<0.1%−5,302−1.1%ReducedHolders
Q2 2025474,043$33.6M<0.1%+141,004+42.3%AddedHolders
Q1 2025333,039$16.3M<0.1%+2,966+0.9%AddedHolders
Q4 2024330,073$23.1M<0.1%+84,481+34.4%AddedHolders
Q3 2024245,592$25.2M<0.1%+810.0%AddedHolders
Q2 2024245,511$33.7M<0.1%+53,251+27.7%AddedHolders
Q1 2024192,260$20.8M<0.1%+192,260NewHolders
Q1 20230$00.0%−16,045−100.0%Sold outHolders
Q4 202216,045$1.27M<0.1%+4,569+39.8%AddedHolders
Q3 202211,476$695.0K<0.1%+2,061+21.9%AddedHolders
Q2 20229,415$516.0K<0.1%+2,428+34.8%AddedHolders
Q1 20226,987$528.0K<0.1%−7,852−52.9%ReducedHolders
Q4 202114,839$1.11M<0.1%−47,450−76.2%ReducedHolders
Q3 202162,289$2.93M<0.1%−18,451−22.9%ReducedHolders
Q2 202180,740$3.26M<0.1%−48,127−37.3%ReducedHolders
Q1 2021128,867$5.29M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.