Axcelis Technologies, Inc.
DE ˙ DB ˙ US0545402085
133,80 € ↑7,60 (6,02%)
2026-06-03
DEL PRIS
SecurityDE:XXA1 / Axcelis Technologies, Inc.
InstitutionBlackRock, Inc.
Latest Disclosed Ownership4,911,042 shares
Ownership 15.30%
BlackRock, Inc. ownership in XXA1 / Axcelis Technologies, Inc.

2025-04-29 - BlackRock, Inc. has filed an SCHEDULE 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 4,911,042 shares of Axcelis Technologies, Inc. (DE:XXA1). This represents 15.3 percent ownership of the company. In their previous filing dated 2024-11-08 , BlackRock, Inc. had reported owning 5,338,625 shares, indicating a decrease of -8.01 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2025-04-29 2025-04-29 13G/A 5,338,625 4,911,042 -8.01 15.30 -6.71
2024-11-08 2024-11-08 13G/A 5,338,625 5,338,625 0.00 16.40 0.00
2024-10-18 2024-10-18 13G/A 5,338,625 16.40
2024-01-19 2024-01-19 13G/A 5,310,982 6,088,685 14.64 18.60 14.81
2023-01-26 2023-01-26 13G/A 5,310,982 5,310,982 0.00 16.20 0.00
2023-01-20 2023-01-20 13G/A 5,011,615 5,310,982 5.97 16.20 8.00
2022-01-28 2022-01-28 13G/A 5,118,353 5,011,615 -2.09 15.00 -1.96
2021-01-26 2021-01-26 13G/A 5,069,440 5,118,353 0.96 15.30 -1.92
2020-02-04 2020-02-04 13G/A 4,785,672 5,069,440 5.93 15.60 5.41
2019-01-24 2019-01-24 13G/A 3,914,998 4,785,672 22.24 14.80 18.40
2018-01-23 2018-01-23 13G/A 3,878,664 3,914,998 0.94 12.50 0.81
2017-11-09 2017-11-09 13G/A 1,902,772 3,878,664 103.84 12.40 90.77
2017-01-19 2017-01-19 13G/A 6,943,481 1,902,772 -72.60 6.50 8.33
2016-01-25 2016-01-25 13G/A 6,943,481 6.00
2015-01-30 2015-01-30 13G/A 7,134,431 6.40
2014-01-28 2014-01-28 13G/A 7,440,478 6.80
2013-02-08 2013-02-08 13G/A 6,154,139 5.71
2012-02-13 2012-02-13 13G/A 6,213,684 5.84

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-13 2026-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,936,774 109,199 2.26 459,515 18.48 0.0080
2026-02-12 2025-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,827,575 -36,598 -0.75 387,847 -18.34 0.0066
2025-11-12 2025-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,864,173 -157,773 -3.14 474,938 35.70 0.0083
2025-08-12 2025-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,021,946 -316,474 -5.93 349,979 31.99 0.0067
2025-05-02 2025-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,338,420 -108,809 -2.00 265,159 -30.33 0.0056
2025-02-07 2024-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,447,229 108,636 2.03 380,598 -32.01 0.0077
2024-11-13 2024-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,338,593 -468,214 -8.06 559,751 -32.21 0.0118
2024-08-13 2024-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,806,807 -332,111 -5.41 825,670 20.60 0.0187
2024-05-10 2024-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 6,138,918 50,233 0.83 684,612 -13.30 0.0159
2024-02-13 2023-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 6,088,685 83,284 1.39 789,642 -19.36 0.0201
2023-11-13 2023-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 6,005,401 471,828 8.53 979,181 -3.48 0.0282
2023-08-11 2023-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,533,573 98,534 1.81 1,014,470 40.08 0.0280
2023-05-12 2023-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,435,039 124,057 2.34 724,219 71.83 0.0214
2023-02-13 2022-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,310,982 154,617 3.00 421,480 34.97 0.0132
2022-11-14 2022-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,156,365 56,915 1.12 312,269 11.66 0.0106
2022-08-12 2022-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,099,450 39,784 0.79 279,655 -26.82 0.0090
2022-05-12 2022-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,059,666 48,051 0.96 382,156 2.27 0.0103
2022-02-10 2021-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,011,615 48,022 0.97 373,667 60.07 0.0095
2021-11-09 2021-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,963,593 -164,854 -3.21 233,439 12.61 0.0065
2021-08-11 2021-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,128,447 -140,142 -2.66 207,292 -4.25 0.0058
2021-05-07 2021-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,268,589 150,236 2.94 216,487 45.25 0.0064
2021-02-05 2020-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,118,353 259,580 5.34 149,046 39.43 0.0048
2020-11-06 2020-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,858,773 -95,191 -1.92 106,893 -22.52 0.0039
2020-08-14 2020-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,953,964 51,078 1.04 137,966 53.69 0.0055
2020-05-01 2020-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,902,886 -166,554 -3.29 89,771 -26.51 0.0044
2020-02-13 2019-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 5,069,440 112,476 2.27 122,148 44.19 0.0047
2019-11-08 2019-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,956,964 15,060 0.30 84,716 13.91 0.0036
2019-08-22 2019-06-30 13F/A-1 AXCELIS TECHNOLOGIES COM NEW 054540208 4,941,904 107,977 2.23 74,373 -23.53 0.0032
2019-08-13 2019-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,941,904 107,977 74,373
2019-05-09 2019-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,833,927 48,255 1.01 97,258 14.17 0.0043
2019-02-08 2018-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,785,672 69,234 1.47 85,184 -8.09 0.0043
2018-11-09 2018-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,716,438 187,036 4.13 92,677 3.34 0.0040
2018-08-09 2018-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,529,402 445,693 10.91 89,683 -10.73 0.0041
2018-05-09 2018-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 4,083,709 168,711 4.31 100,459 -10.59 0.0048
2018-02-09 2017-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 3,914,998 1,928,927 97.12 112,361 106.86 0.0053
2017-11-14 2017-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 1,986,071 45,968 2.37 54,318 33.64 0.0027
2017-08-10 2017-06-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 1,940,103 29,692 1.55 40,645 13.17 0.0022
2017-05-12 2017-03-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 1,910,411 1,903,334 26,894.64 35,916 34,769.90 0.0020
2017-02-10 2016-12-31 13F AXCELIS TECHNOLOGIES COM NEW 054540208 7,077 -217 -2.98 103 6.19 0.0001
2016-11-08 2016-09-30 13F AXCELIS TECHNOLOGIES COM NEW 054540208 7,294 -20,497 -73.75 97 29.33 0.0001
2016-08-10 2016-06-30 13F AXCELIS TECHNOLOGIES COM 054540109 27,791 20,769 295.77 75 294.74 0.0001
2016-05-10 2016-03-31 13F AXCELIS TECHNOLOGIES COM 054540109 7,022 4,040 135.48 19 137.50 0.0000
2016-02-11 2015-12-31 13F AXCELIS TECHNOLOGIES COM 054540109 2,982 0 0.00 8 0.00 0.0000
2015-11-13 2015-09-30 13F AXCELIS TECHNOLOGIES COM 054540109 2,982 0 0.00 8 -11.11 0.0000
2015-08-07 2015-06-30 13F AXCELIS TECHNOLOGIES COM 054540109 2,982 0 0.00 9 28.57 0.0000
2015-05-13 2015-03-31 13F AXCELIS TECHNOLOGIES COM 054540109 2,982 0 0.00 7 -12.50 0.0000
2015-02-09 2014-12-31 13F AXCELIS TECHNOLOGIES COM 054540109 2,982 0 0.00 8 33.33 0.0000
2014-10-29 2014-09-30 13F AXCELIS TECHNOLOGIES COM 054540109 2,982 0 0.00 6 0.00 0.0000
2014-08-06 2014-06-30 13F AXCELIS TECHNOLOGIES COM 054540109 2,982 0 0.00 6 0.00 0.0000
2014-05-02 2014-03-31 13F AXCELIS TECHNOLOGIES COM 054540109 2,982 0 0.00 6 -14.29 0.0000
2014-02-12 2013-12-31 13F AXCELIS TECHNOLOGIES COM 054540109 2,982 -677 -18.50 7 -12.50 0.0000
2013-11-12 2013-09-30 13F AXCELIS TECHNOLOGIES COM 054540109 3,659 0 0.00 8 14.29 0.0000
2013-08-13 2013-06-30 13F AXCELIS TECHNOLOGIES COM 054540109 3,659 3,659 7 0.0000
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.