Axcelis Technologies, Inc.
US ˙ NasdaqGS ˙ US0545402085

SecurityACLS / Axcelis Technologies, Inc.
InstitutionBarclays Plc
Latest Disclosed Ownership75,982 shares
Latest Disclosed Value $ 6,104,393
Barclays Plc reports 9.19% increase in ownership of ACLS / Axcelis Technologies, Inc.

On February 13, 2026 - Barclays Plc filed a 13F-HR form disclosing ownership of 75,982 shares of Axcelis Technologies, Inc. (US:ACLS) valued at $6,104,394 USD as of December 31, 2025. The entity filed a previous 13F-HR/A on March 31, 2026 disclosing 69,585 shares of Axcelis Technologies, Inc.. This represents a change in shares of 9.19% during the quarter. The current value of the position is $12,095,575 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 75,982 6,397 9.19 6,104 -10.16 0.0015
2026-03-31 2025-09-30 13F/A-3 AXCELIS TECHNOLOGIES COM 054540208 69,585 -8,702 -11.12 6,794 24.55 0.0015
2026-03-19 2025-09-30 13F/A-2 AXCELIS TECHNOLOGIES COM 054540208 68,111 -10,176 7,141 0.0019
2025-11-12 2025-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 69,585 -8,702 6,794 0.0015
2026-02-27 2025-06-30 13F/A-2 AXCELIS TECHNOLOGIES COM 054540208 78,287 21,977 39.03 5,456 95.10 0.0013
2025-08-14 2025-06-30 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 78,287 21,977 5 0.0013
2025-08-13 2025-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 78,287 21,977 5 0.0004
2026-03-17 2025-03-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 56,310 -17,161 -23.36 2,797 -45.53 0.0008
2025-05-15 2025-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 56,310 -17,161 3 0.0008
2026-03-19 2024-12-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 73,471 5,360 7.87 5,133 -28.12 0.0014
2025-02-13 2024-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 73,471 5,360 5 0.0014
2026-03-31 2024-09-30 13F/A-2 AXCELIS TECHNOLOGIES COM 054540208 68,111 -93,416 -57.83 7,141 -68.91 0.0019
2024-11-19 2024-09-30 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 68,111 -93,416 7 0.0019
2024-11-15 2024-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 68,111 -93,416 7 0.0006
2026-03-23 2024-06-30 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 161,527 -30,949 -16.08 22,968 7.00 0.0070
2024-08-14 2024-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 161,527 -30,949 23 0.0070
2026-03-24 2024-03-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 192,476 5,276 2.82 21,465 -11.59 0.0075
2024-05-15 2024-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 192,476 5,276 21 0.0075
2026-03-25 2023-12-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 187,200 86,791 86.44 24,278 48.29 0.0089
2024-02-15 2023-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 187,200 86,791 24 0.0089
2026-03-26 2023-09-30 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 100,409 73,053 267.05 16,372 226.44 0.0102
2023-11-07 2023-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 100,409 73,053 16 0.0102
2026-03-30 2023-06-30 13F/A-2 AXCELIS TECHNOLOGIES COM 054540208 27,356 -8,554 -23.82 5,015 4.81 0.0032
2023-09-20 2023-06-30 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 27,356 -8,554 5 0.0032
2023-08-03 2023-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 27,356 -8,554 5 0.0032
2026-03-30 2023-03-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 35,910 1,659 4.84 4,785 76.05 0.0022
2023-05-04 2023-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 35,910 1,659 5 0.0022
2026-03-30 2022-12-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 34,251 -238 -0.69 2,718 30.17 0.0012
2023-02-13 2022-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 34,251 -238 3 0.0012
2022-11-03 2022-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 34,489 -5,195 -13.09 2,088 -4.04 0.0023
2022-08-12 2022-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 39,684 -8,945 -18.39 2,176 -40.74 0.0013
2022-05-16 2022-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 48,629 -8,212 -14.45 3,672 -13.38 0.0029
2022-02-23 2021-12-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 56,841 15,510 37.53 4,239 118.17 0.0016
2022-02-14 2021-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 56,841 15,510 4,239 0.0005
2021-11-09 2021-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 41,331 10,089 32.29 1,943 53.84 0.0009
2021-08-13 2021-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 31,242 -19,046 -37.87 1,263 -38.87 0.0006
2021-05-13 2021-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 50,288 6,536 14.94 2,066 62.17 0.0011
2021-02-11 2020-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 43,752 814 1.90 1,274 34.67 0.0007
2020-11-12 2020-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 42,938 -12,079 -21.96 946 -38.25 0.0006
2020-08-12 2020-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 55,017 758 1.40 1,532 54.28 0.0012
2020-05-13 2020-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 54,259 5,239 10.69 993 -15.92 0.0008
2020-02-10 2019-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 49,020 5,457 12.53 1,181 58.31 0.0007
2019-11-15 2019-09-30 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 43,563 -7,720 -15.05 746 -3.37 0.0005
2019-11-14 2019-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 43,563 -7,720 746 172.4760
2019-08-14 2019-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 51,283 14,718 40.25 772 5.03 0.0005
2019-05-15 2019-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 36,565 3,086 9.22 735 23.32 0.0005
2019-02-14 2018-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 33,479 -16,145 -32.53 596 -38.93 0.0005
2018-11-14 2018-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 49,624 31,038 167.00 976 165.22 0.0007
2018-08-14 2018-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 18,586 -6,072 -24.62 368 -39.37 0.0003
2018-05-15 2018-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 24,658 6,780 37.92 607 18.32 0.0005
2018-02-14 2017-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 17,878 14,210 387.40 513 413.00 0.0004
2017-11-14 2017-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 3,668 -18,246 -83.26 100 -78.21 0.0001
2017-08-14 2017-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 21,914 11,330 107.05 459 130.65 0.0005
2017-05-15 2017-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 10,584 10,584 199 0.0002
2017-02-14 2016-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 0 -4,978 -100.00 0 -100.00
2016-11-14 2016-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 4,978 -17,022 -77.37 66 11.86 0.0001
2016-08-12 2016-06-30 13F AXCELIS TECHNOLOGIES COM 054540109 22,000 881 4.17 59 40.48 0.0001
2016-05-16 2016-03-31 13F AXCELIS TECHNOLOGIES COM 054540109 21,119 21,119 0.00 42 0.0001
2016-02-12 2015-12-31 13F AXCELIS TECHNOLOGIES COM 054540109 0 -1,164 -100.00 0 -100.00
2015-11-13 2015-09-30 13F AXCELIS TECHNOLOGIES COM 054540109 1,164 -1,007 -46.38 2 -50.00 0.0000
2015-08-14 2015-06-30 13F AXCELIS TECHNOLOGIES COM 054540109 2,171 -1,184 -35.29 4 -42.86 0.0000
2015-05-19 2015-03-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540109 3,355 -14,679 -81.40 7 -80.56 0.0000
2015-05-14 2015-03-31 13F AXCELIS TECHNOLOGIES COM 054540109 3,355 7
2015-02-13 2014-12-31 13F AXCELIS TECHNOLOGIES COM 054540109 18,034 14,107 359.23 36 800.00 0.0000
2014-11-14 2014-09-30 13F AXCELIS TECHNOLOGIES COM 054540109 3,927 -5,596 -58.76 4 -78.95 0.0000
2014-08-14 2014-06-30 13F AXCELIS TECHNOLOGIES COM 054540109 9,523 -41,808 -81.45 19 -81.55 0.0000
2014-05-15 2014-03-31 13F AXCELIS TECHNOLOGIES COM 054540109 51,331 -69,687 -57.58 103 -57.44 0.0001
2014-02-13 2013-12-31 13F AXCELIS TECHNOLOGIES COM 054540109 121,018 10,153 9.16 242 9.50 0.0002
2013-11-14 2013-09-30 13F AXCELIS TECHNOLOGIES COM 054540109 110,865 63,780 135.46 221 156.98 0.0003
2013-08-14 2013-06-30 13F AXCELIS TECHNOLOGIES COM 054540109 47,085 47,085 86 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.