Axcelis Technologies, Inc.
US ˙ NasdaqGS ˙ US0545402085

SecurityACLS / Axcelis Technologies, Inc.
InstitutionPeterson Wealth Services
Latest Disclosed Ownership7,889 shares
Latest Disclosed Value $ 734,308
Peterson Wealth Services reports 6.56% increase in ownership of ACLS / Axcelis Technologies, Inc.

On April 30, 2026 - Peterson Wealth Services filed a 13F-HR form disclosing ownership of 7,889 shares of Axcelis Technologies, Inc. (US:ACLS) valued at $734,308 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 7,403 shares of Axcelis Technologies, Inc.. This represents a change in shares of 6.56% during the quarter. The current value of the position is $1,276,992 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)
2026-04-30 2026-03-31 13F AXCELIS TECHNOLOGIES INCORPORATED COM COM NEW 054540208 7,889 486 6.56 734 23.57 0.1814
2026-02-12 2025-12-31 13F AXCELIS TECHNOLOGIES INCORPORATED COM COM NEW 054540208 7,403 7,003 1,750.75 595 -35.64 0.1521
2025-11-04 2025-09-30 13F AXCELIS TECHNOLOGIES INCORPORATED COM COM NEW 054540208 400 -8,754 -95.63 923 44.90 0.2279
2025-07-31 2025-06-30 13F AXCELIS TECHNOLOGIES INCORPORATED COM COM NEW 054540208 9,154 23 0.25 638 40.62 0.1748
2025-05-05 2025-03-31 13F AXCELIS TECHNOLOGIES INCORPORATED COM COM NEW 054540208 9,131 1,438 18.69 454 -15.64 0.1405
2025-01-29 2024-12-31 13F AXCELIS TECHNOLOGIES INCORPORATED COM COM NEW 054540208 7,693 868 12.72 538 -24.90 0.1614
2024-11-07 2024-09-30 13F AXCELIS TECHNOLOGIES INCORPORATED COM COM NEW 054540208 6,825 947 16.11 716 -14.37 0.2286
2024-07-30 2024-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,878 698 13.47 836 44.71 0.2921
2024-05-01 2024-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,180 5,180 578 0.2104
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.