AXCELIS TECHNOLOGIES INC - Common Stock (ACLS)

Historical Holders from Q3 2015 to Q4 2025

Symbol
ACLS on Nasdaq
Type / Class
Equity / Common Stock
Shares outstanding
31,296,767
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
30,368,088
Holdings value
$2,956,440,011
% of all portfolios
0%
Number of holders
352
Number of buys
174
Number of sells
155
Average buys %
+0%
Average sells %
-0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of AXCELIS TECHNOLOGIES INC - Common Stock (ACLS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 15% $238,676,641 4,911,042 BlackRock, Inc. 31 Mar 2025
VANGUARD GROUP INC 14% $213,652,112 4,396,134 The Vanguard Group 31 Dec 2024
AMERICAN CENTURY INVESTMENT MANAGEMENT INC 4.3% -18% $131,400,104 -$30,629,863 1,345,761 -19% American Century Investment Management, Inc. 30 Sep 2025
As of 30 Sep 2025 AXCELIS TECHNOLOGIES INC - Common Stock (ACLS) has 352 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 30,368,088 shares of 31,296,767 outstanding shares and own 97% of the company stock as of 30 Sep 2025.

Top 25 institutional shareholders of AXCELIS TECHNOLOGIES INC - Common Stock (ACLS) own 76% of the company based on 13F filings as of 30 Sep 2025

Filer Ownership Holdings Value Nb Shares Share Change %
BlackRock, Inc. 16% $474,937,860 4,864,173 -3.1%
VANGUARD GROUP INC 13% $408,691,845 4,185,701 -3.2%
REINHART PARTNERS, LLC. 5.1% $157,234,081 1,610,332 +6%
AMERICAN CENTURY COMPANIES INC 4.3% $131,400,104 1,345,761 -19%
STATE STREET CORP 3.9% $120,108,526 1,230,116 -1.5%
VICTORY CAPITAL MANAGEMENT INC 3.1% $90,243,004 972,162 +9.6%
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 3% $90,840,000 930,362 +1%
GEODE CAPITAL MANAGEMENT, LLC 3% $90,497,584 926,739 +0.15%
PRIMECAP MANAGEMENT CO/CA/ 2.7% $81,400,125 833,676 -2.2%
DIMENSIONAL FUND ADVISORS LP 2.5% $75,143,347 769,612 +4.6%
FMR LLC 1.8% $53,838,473 551,398 +44%
PRICE T ROWE ASSOCIATES INC /MD/ 1.7% $51,956,000 532,108 +0.56%
GOLDMAN SACHS GROUP INC 1.6% $48,309,831 494,775 -16%
Boston Partners 1.5% $44,903,364 468,741 -1.1%
Boston Trust Walden Corp 1.5% $44,942,423 460,287 -46%
MORGAN STANLEY 1.5% $44,337,210 454,087 -17%
Grantham, Mayo, Van Otterloo & Co. LLC 1.4% $43,338,783 443,863 +0.41%
NORTHERN TRUST CORP 1.4% $42,472,229 434,988 -1.5%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 1.4% $41,703,313 427,113 +5.1%
BANK OF AMERICA CORP /DE/ 1.3% $40,063,059 410,314 -42%
Invesco Ltd. 1.2% $37,760,806 386,735 +177%
CITIGROUP INC 1% $31,669,925 324,354 -11%
LSV ASSET MANAGEMENT 1% $30,747,000 314,900
BNP PARIBAS FINANCIAL MARKETS 0.91% $27,722,535 283,926 0%
MILLENNIUM MANAGEMENT LLC 0.84% $25,559,809 261,776 +144%

Institutional Holders of AXCELIS TECHNOLOGIES INC - Common Stock (ACLS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q4 2,909 $233,709 +$5,543 $80.34 1
2025 Q3 30,368,088 $2,956,440,011 -$117,206,623 $97.64 352
2025 Q2 31,565,555 $2,202,316,189 +$48,333,309 $69.69 325
2025 Q1 31,029,593 $1,538,370,514 -$28,923,011 $49.67 300
2024 Q4 30,908,235 $2,161,421,332 -$16,178,454 $69.87 320
2024 Q3 30,091,124 $3,151,601,748 -$37,557,632 $104.85 362
2024 Q2 30,607,626 $4,350,568,984 +$135,949,754 $142.19 382
2024 Q1 29,995,266 $3,344,516,488 +$62,297,402 $111.52 377
2023 Q4 29,357,827 $3,807,055,461 -$120,248,845 $129.69 417
2023 Q3 29,741,040 $4,849,220,159 +$20,824,891 $163.05 418
2023 Q2 29,465,009 $5,401,368,114 +$121,426,115 $183.33 401
2023 Q1 29,000,298 $3,863,375,127 -$204,971 $133.25 375
2022 Q4 29,119,503 $2,310,940,929 +$90,988,492 $79.36 316
2022 Q3 28,398,688 $1,719,886,261 +$35,045,318 $60.56 277
2022 Q2 27,743,217 $1,521,703,980 +$40,542,722 $54.84 263
2022 Q1 27,062,266 $2,044,421,467 -$32,788,741 $75.53 275
2021 Q4 27,540,475 $2,052,001,785 -$112,165,409 $74.56 244
2021 Q3 29,085,136 $1,368,242,181 +$12,046,305 $47.03 197
2021 Q2 28,851,236 $1,166,308,282 -$13,491,490 $40.42 183
2021 Q1 29,166,371 $1,198,535,654 +$34,140,637 $41.09 187
2020 Q4 28,479,814 $829,334,781 +$8,923,273 $29.12 162
2020 Q3 28,312,135 $622,926,760 -$2,926,447 $22.00 166
2020 Q2 28,283,390 $787,682,223 -$6,239,364 $27.85 166
2020 Q1 28,687,843 $525,368,516 +$9,941,773 $18.31 129
2019 Q4 28,119,574 $677,705,946 +$38,898,056 $24.09 130
2019 Q3 26,628,481 $455,135,544 -$3,055,362 $17.09 138
2019 Q2 26,890,418 $404,695,686 -$3,169,452 $15.05 128
2019 Q1 27,113,742 $545,543,169 -$8,717,627 $20.12 141
2018 Q4 27,673,106 $492,597,108 +$7,449,145 $17.80 136
2018 Q3 27,096,740 $532,381,177 -$21,830,004 $19.65 147
2018 Q2 28,222,214 $558,847,836 -$577,586 $19.80 157
2018 Q1 28,073,992 $690,550,204 -$17,325,126 $24.60 159
2017 Q4 28,700,108 $823,659,496 +$106,498,103 $28.70 170
2017 Q3 25,026,149 $684,283,569 +$35,371,517 $27.35 143
2017 Q2 23,956,754 $501,886,367 +$36,685,039 $20.95 125
2017 Q1 22,560,447 $423,876,506 +$48,062,353 $18.80 94
2016 Q4 21,994,136 $320,013,702 +$7,694,242 $14.55 83
2016 Q3 20,462,146 $271,735,066 +$654,597 $13.28 76
2016 Q2 20,437,732 $54,978,752 +$54,978,752 $2.69 14
2015 Q4 0 $0 -$31,228,000 0
2015 Q3 11,695,785 $31,228,000 +$31,228,000 $2.67 1