Axcelis Technologies, Inc.
US ˙ NasdaqGS ˙ US0545402085

SecurityACLS / Axcelis Technologies, Inc.
InstitutionTrexquant Investment LP
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Trexquant Investment LP closes position in ACLS / Axcelis Technologies, Inc.

On November 14, 2025 - Trexquant Investment LP filed a 13F-HR form disclosing ownership of 0 shares of Axcelis Technologies, Inc. (US:ACLS) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 12, 2025 disclosing 81,043 shares of Axcelis Technologies, Inc.. The current value of the position is $0 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)
2025-11-14 2025-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 0 -100.00 0
2025-08-12 2025-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 81,043 81,043 5,648 0.0637
2025-05-14 2025-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 0 -69,894 -100.00 0 -100.00
2025-02-12 2024-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 69,894 26,219 60.03 4,883 6.64 0.0569
2024-11-12 2024-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 43,675 -79,348 -64.50 4,579 -73.82 0.0580
2024-08-13 2024-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 123,023 29,547 31.61 17,493 67.81 0.2669
2024-05-14 2024-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 93,476 71,271 320.97 10,424 262.07 0.2078
2024-02-09 2023-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 22,205 6,200 38.74 2,880 10.35 0.0648
2023-11-13 2023-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 16,005 16,005 2,610 0.0655
2023-08-11 2023-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 0 -37,142 -100.00 0 -100.00
2023-05-15 2023-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 37,142 34,027 1,092.36 4,949 1,903.64 0.1359
2023-02-13 2022-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 3,115 -1,090 -25.92 247 -3.14 0.0070
2022-11-14 2022-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,205 -7,869 -65.17 255 -61.48 0.0090
2022-08-11 2022-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 12,074 -8,776 -42.09 662 -57.97 0.0297
2022-05-13 2022-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 20,850 -15,320 -42.36 1,575 -41.60 0.0740
2022-02-14 2021-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 36,170 36,170 2,697 0.1666
2021-08-12 2021-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 0 -5,725 -100.00 0 -100.00
2021-05-13 2021-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,725 5,725 235 0.0216
2021-02-11 2020-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 0 -48,232 -100.00 0 -100.00
2020-11-06 2020-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 48,232 -13,663 -22.07 1,061 -38.46 0.0683
2020-08-07 2020-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 61,895 44,798 262.02 1,724 450.80 0.1197
2020-05-08 2020-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 17,097 17,097 313 0.0227
2018-11-09 2018-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 0 -26,955 -100.00 0 -100.00
2018-08-07 2018-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 26,955 26,955 534 0.0370
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.