Axcelis Technologies, Inc.
MX ˙ BMV ˙ US0545402085
SecurityMX:ACLS / Axcelis Technologies, Inc.
InstitutionWhite Pine Capital Llc
Latest Disclosed Ownership6,671 shares
Latest Disclosed Value $ 620,937
White Pine Capital Llc ownership in ACLS / Axcelis Technologies, Inc.

On May 11, 2026 - White Pine Capital Llc filed a 13F-HR form disclosing ownership of 6,671 shares of Axcelis Technologies, Inc. (MX:ACLS) valued at $620,937 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 6,671 shares of Axcelis Technologies, Inc.. This represents a change in shares of 0.00% during the quarter.

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)
2026-05-11 2026-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 6,671 0 0.00 621 15.89 0.1748
2026-02-09 2025-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 6,671 -229 -3.32 536 -20.51 0.1475
2025-11-10 2025-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 6,900 0 0.00 674 40.21 0.1929
2025-08-12 2025-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 6,900 0 0.00 481 40.35 0.1526
2025-05-13 2025-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 6,900 0 0.00 343 -29.05 0.1187
2025-01-30 2024-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 6,900 -100 -1.43 482 -34.24 0.1624
2024-11-12 2024-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 7,000 0 0.00 734 -26.33 0.2507
2024-08-13 2024-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 7,000 -100 -1.41 995 35.56 0.3772
2024-05-13 2024-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 735 -20.22 0.2795
2024-02-05 2023-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 921 -20.48 0.3548
2023-11-09 2023-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 1,158 -11.07 0.4646
2023-08-08 2023-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 1,302 37.53 0.4856
2023-05-09 2023-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 946 68.03 0.3675
2023-02-16 2022-12-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 563 30.93 0.2199
2023-02-10 2022-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 563 0.2199
2022-11-08 2022-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 430 10.54 0.1790
2022-08-16 2022-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 389 -27.43 0.1524
2022-05-12 2022-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 536 1.32 0.1660
2022-02-11 2021-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 529 58.38 0.1563
2021-11-10 2021-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 334 21.90 0.1026
2021-08-12 2021-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 274 -6.16 0.0816
2021-05-12 2021-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 0 0.00 292 41.06 0.0927
2021-02-16 2020-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 7,100 7,100 207 0.0732
2019-05-10 2018-06-30 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 0 -10,500 -100.00 0 -100.00
2019-05-10 2018-03-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540208 10,500 -19,241 -64.70 258 -69.79 0.0950
2018-05-14 2018-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 10,500 -19,241 258
2018-02-13 2017-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 29,741 -10,175 -25.49 854 -21.79 0.3120
2017-11-13 2017-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 39,916 -1,160 -2.82 1,092 26.83 0.0028
2017-08-10 2017-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 41,076 -21,985 -34.86 861 -27.40 0.3396
2017-05-15 2017-03-31 13F AXCELIS TECHNOLOGIES COM 054540208 63,061 -800 -1.25 1,186 27.66 0.4822
2017-02-13 2016-12-31 13F AXCELIS TECHNOLOGIES COM 054540208 63,861 -1,325 -2.03 929 7.27 0.3938
2016-11-10 2016-09-30 13F AXCELIS TECHNOLOGIES COM 054540208 65,186 -215,564 -76.78 866 14.70 0.3691
2016-08-12 2016-06-30 13F AXCELIS TECHNOLOGIES COM 054540208 280,750 0 0.00 755 -3.94 0.3177
2016-05-11 2016-03-31 13F AXCELIS TECHNOLOGIES COM 054540109 280,750 -1,750 -0.62 786 7.38 0.3363
2016-02-11 2015-12-31 13F AXCELIS TECHNOLOGIES COM 054540109 282,500 -2,300 -0.81 732 -3.68 0.3241
2015-11-12 2015-09-30 13F AXCELIS TECHNOLOGIES COM 054540109 284,800 -155,900 -35.38 760 -41.72 0.3527
2015-08-13 2015-06-30 13F AXCELIS TECHNOLOGIES COM 054540109 440,700 -42,375 -8.77 1,304 13.39 0.5585
2015-05-13 2015-03-31 13F AXCELIS TECHNOLOGIES COM 054540109 483,075 -418,700 -46.43 1,150 -50.19 0.4662
2015-02-13 2014-12-31 13F AXCELIS TECHNOLOGIES COM 054540109 901,775 -18,100 -1.97 2,309 26.11 0.7776
2014-11-13 2014-09-30 13F AXCELIS TECHNOLOGIES COM 054540109 919,875 69,300 8.15 1,831 7.64 0.6240
2014-09-17 2014-06-30 13F/A-1 AXCELIS TECHNOLOGIES COM 054540109 850,575 -2,700 -0.32 1,701 -7.30 0.5874
2014-08-12 2014-06-30 13F AXCELIS TECHNOLOGIES COM 054540109 850,575 1,701
2014-09-17 2014-03-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540109 853,275 375 0.04 1,835 -11.82 0.6277
2014-05-14 2014-03-31 13F AXCELIS TECHNOLOGIES COM 054540109 853,275 1,835
2014-09-17 2013-12-31 13F/A-1 AXCELIS TECHNOLOGIES COM 054540109 852,900 -172,800 -16.85 2,081 -3.84 0.7308
2014-02-13 2013-12-31 13F AXCELIS TECHNOLOGIES COM 054540109 852,900 2,081
2014-09-17 2013-09-30 13F/A-1 AXCELIS TECHNOLOGIES COM 054540109 1,025,700 -261,600 -20.32 2,164 -7.64 0.7451
2013-11-12 2013-09-30 13F AXCELIS TECHNOLOGIES COM 054540109 1,025,700 2,164
2013-08-16 2013-06-30 13F/A-1 AXCELIS TECHNOLOGIES COM 054540109 1,287,300 0 2,343 0.8943
2014-09-17 2013-06-30 13F/A-2 AXCELIS TECHNOLOGIES COM 054540109 1,287,300 1,287,300 2,343 0.8131
2013-08-12 2013-06-30 13F AXCELIS TECHNOLOGIES COM 054540109 1,287,300 2,343 0.8960
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.