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Disclosery

ACLS AXCELIS TECHNOLOGIES INC

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COM NEW (common), issuer CIK 1113232

367 managers (380 13F filers) reported a position in ACLS shares at 2026-03-31, 32,565,153 shares in all. 62 filers opened a position and 59 filers sold out during the quarter.

Managers
367
13F filers
380
New
62
Added
99
Reduced
134
Sold out
59
Shares held by filers
32,565,153

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
BlackRock, Inc.in group BlackRock, Inc.4,936,774$460M0.01%+109,19913F-HRTimelineGroup
VANGUARD GROUP INCgroup of 7 filers holding4,128,168$384M+4,119,027Timeline
FMR LLCin group FMR LLC2,431,121$226M0.01%+1,820,51813F-HRTimelineGroup
REINHART PARTNERS, LLC.1,657,745$154M4.44%+67,84713F-HRTimeline
Balyasny Asset Management L.P.in group Balyasny Asset Management1,364,540$127M0.25%+1,121,03713F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC1,279,005$119M0.08%-528,39913F-HRTimeline
STATE STREET CORPin group STATE STREET CORP1,189,045$111M<0.01%+2,81813F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …1,006,028$93.6M0.11%-85,06613F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC951,914$88.6M0.05%-281,73213F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP844,097$78.6M0.02%+3,05713F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC811,264$75.5M<0.01%-106,48313F-HRTimelineGroup
Boston Trust Walden Corpgroup of 2 filers holding718,800$67M-131,371Timeline
PRIMECAP MANAGEMENT CO/CA/658,652$61.3M0.05%-6,29013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY581,636$54.1M<0.01%+231,41613F-HRTimelineGroup
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.544,421$50.7M0.04%+74,13613F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC497,624$46.3M0.01%-132,19013F-HRTimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …491,745$45.8M0.04%+477,70513F-HRTimelineGroup
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co445,769$41.5M0.01%+14,57413F-HRTimelineGroup
UBS Group AGgroup of 2 filers holding441,787$41.1M+167,302Timeline
LSV ASSET MANAGEMENT429,500$40M0.09%013F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP416,703$38.8M0.01%+11,55713F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/362,202$33.7M<0.01%-20,85413F-HRTimeline
Grantham, Mayo, Van Otterloo & Co. LLC334,786$31.2M0.08%+11,93713F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …258,536$24.7M0.04%-7,47913F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO222,714$20.1M<0.01%-134,78813F-HR/ATimelineGroup
PRINCIPAL FINANCIAL GROUP INCgroup of 2 filers holding210,202$19.6M+6,977Timeline
FEDERATED HERMES, INC.in group FEDERATED HERMES, INC.209,198$19.5M0.03%-67,06813F-HRTimelineGroup
SEGALL BRYANT & HAMILL, LLC200,371$18.7M0.27%+98,18413F-HR/ATimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp199,672$18.6M<0.01%-3,86413F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP197,566$18.4M0.02%+126,32213F-HRTimelineGroup
EMERALD ADVISERS, LLCgroup of 3 filers holding183,414$17.1MnewTimeline
KENNEDY CAPITAL MANAGEMENT LLC178,016$16.6M0.35%-27,72113F-HRTimeline
Invesco Ltd.in group Invesco Ltd.165,075$15.4M<0.01%-313,82213F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS144,678$13.5M0.01%-19,34913F-HRTimelineGroup
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP137,779$12.8M0.01%+49,38313F-HRTimelineGroup
ROYCE & ASSOCIATES LP125,280$11.7M0.12%+8,90513F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/110,999$10.3M<0.01%-7,20713F-HRTimelineGroup
Public Sector Pension Investment Board109,791$10.2M0.03%-19,98613F-HRTimeline
First Eagle Investment Management, LLCin group First Eagle Investment Manage…100,551$9.36M0.02%-35,76713F-HR/ATimelineGroup
RHUMBLINE ADVISERS87,307$8.13M0.01%-80213F-HRTimeline
Sagefield Capital LPin group Sagefield Capital LP82,238$7.65M0.55%new13F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding80,989$7.54M-6,962Timeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC78,695$7.32M<0.01%-7,36213F-HR/ATimelineGroup
Creative Planningin group Creative Planning77,712$7.23M<0.01%+4,21213F-HRTimelineGroup
Portolan Capital Management, LLCin group Portolan Capital Management, …77,168$7.18M0.38%new13F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc71,909$6.69M<0.01%-6,14613F-HRTimelineGroup
Nuveen, LLCin group TIAA71,385$6.64M<0.01%+99213F-HRTimelineGroup
Swiss National Bank61,200$5.7M<0.01%013F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN51,701$4.81M<0.01%-28,05113F-HR/ATimelineGroup
Holocene Advisors, LP51,575$4.8M0.01%+35,89613F-HRTimeline
QSM Asset Management Ltd51,571$4.63M2.27%-1,59513F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV47,976$4.47M0.01%+44,25513F-HRTimeline
GREAT LAKES ADVISORS, LLC47,594$4.43M0.04%new13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO45,035$4.19M<0.01%+17,05913F-HRTimelineGroup
GLOBEFLEX CAPITAL L P44,455$4.14M0.63%-11,54213F-HRTimeline
VOLORIDGE INVESTMENT MANAGEMENT, LLC44,246$4.12M0.02%-176,46713F-HRTimeline
NEEDHAM INVESTMENT MANAGEMENT LLCin group NEEDHAM INVESTMENT MANAGEMENT…42,500$3.96M0.2%+22,50013F-HRTimelineGroup
Old West Investment Management, LLC42,481$3.95M0.43%+24,41713F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.41,831$3.89M0.32%-2,85613F-HRTimeline
ARGA Investment Management, LP41,408$3.85M0.13%+22,87413F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD41,207$3.84M0.01%-9,29913F-HRTimeline
OSSIAM40,700$3.79M0.07%013F-HRTimeline
Amundiin group Amundi40,627$3.78M<0.01%+3,35313F-HRTimelineGroup
Allianz Asset Management GmbHin group Allianz SE40,133$3.74M<0.01%new13F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC40,015$3.72M<0.01%+2,43413F-HRTimelineGroup
ISTHMUS PARTNERS, LLC39,357$3.66M0.38%-2,12313F-HRTimeline
Empowered Funds, LLC39,087$3.64M0.02%new13F-HR/ATimeline
BRIDGES INVESTMENT MANAGEMENT INC38,637$3.6M0.05%+10,23713F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC38,001$3.54M0.01%+2913F-HRTimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…36,420$3.39M<0.01%+6,39013F-HRTimeline
Alberta Investment Management Corp35,750$3.33M0.02%new13F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC35,371$3.29M<0.01%-40,61113F-HRTimelineGroup
Voleon Capital Management LP35,221$3.28M0.07%new13F-HRTimeline
TORONTO DOMINION BANKin group TORONTO DOMINION BANK34,008$3.17M0.01%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC33,291$3.1M0.01%-120,41213F-HRTimelineGroup
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC31,781$2.96M<0.01%-20,71613F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC31,377$2.92M<0.01%-8,18813F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.34,489$2.77M<0.01%+24313F-HRTimeline
Inspire Investing, LLCgroup of 2 filers holding29,411$2.74MnewTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…29,121$2.71M<0.01%013F-HRTimelineGroup
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\28,859$2.69M<0.01%+2,93913F-HRTimelineGroup
FRANKLIN RESOURCES INCin group Franklin Resources26,719$2.49M<0.01%-6,52913F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co25,154$2.34M<0.01%-1,14813F-HRTimelineGroup
ABN AMRO INVESTMENT SOLUTIONSin group ABN AMRO INVESTMENT SOLUTIONS24,650$2.29M0.03%-14813F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC24,645$2.29M<0.01%-85,82513F-HRTimelineGroup
PARADIGM CAPITAL MANAGEMENT INC/NY24,000$2.23M0.09%-32,00013F-HRTimeline
Yakira Capital Management, Inc.22,619$2.11M0.62%new13F-HRTimeline
STIFEL FINANCIAL CORPin group STIFEL FINANCIAL CORP22,584$2.1M<0.01%-1,76313F-HRTimelineGroup
LPL Financial LLC22,497$2.09M<0.01%-12,07713F-HRTimeline
Janney Montgomery Scott LLC22,150$2.06M0.01%-28613F-HRTimeline
State of Alaska, Department of Revenue21,979$2.04M0.02%-58913F-HRTimeline
HUSSMAN STRATEGIC ADVISORS, INC.21,000$1.95M0.42%new13F-HRTimeline
Thrivent Financial for Lutheransin group Thrivent Financial for Luther…20,491$1.91M<0.01%-81013F-HRTimelineGroup
Schonfeld Strategic Advisors LLC17,935$1.67M0.01%-3,24713F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…17,235$1.6M0.01%+18813F-HRTimelineGroup
BURNEY CO/16,845$1.57M0.05%-7,87613F-HRTimeline
VIRGINIA RETIREMENT SYSTEMS ET Al16,438$1.53M0.01%-20013F-HRTimeline
Connor, Clark & Lunn Investment Managem…15,678$1.46M<0.01%new13F-HRTimeline
Illinois Municipal Retirement Fund15,080$1.4M0.02%-48113F-HRTimeline
NEW YORK STATE TEACHERS RETIREMENT SYST…14,857$1.38M<0.01%-1,01013F-HRTimeline
Virtu Financial LLCin group Virtu Financial LLC14,697$1.37M0.06%new13F-HRTimelineGroup
JANUS HENDERSON GROUP PLCin group Janus Henderson14,628$1.36M<0.01%-27,14813F-HR/ATimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…14,555$1.35M<0.01%+10813F-HRTimelineGroup
INTECH INVESTMENT MANAGEMENT LLC14,506$1.35M0.01%-25,95713F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC14,406$1.34M<0.01%-17813F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd14,151$1.32M0.05%-57313F-HRTimelineGroup
&PARTNERS14,087$1.31M0.01%+13413F-HRTimeline
Louisiana State Employees Retirement Sy…13,600$1.27M0.02%-60013F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC13,456$1.25M0.01%+35713F-HRTimelineGroup
WESBANCO BANK INC12,800$1.19M0.03%new13F-HRTimeline
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC12,532$1.17M<0.01%-117,55813F-HRTimelineGroup
Homestead Advisers Corp12,500$1.16M0.03%013F-HRTimeline
Quantinno Capital Management LP12,336$1.15M<0.01%+1,12213F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…12,181$1.13M<0.01%+85513F-HRTimeline
Penbrook Management LLC12,095$1.13M0.85%-3,80013F-HRTimeline
Gotham Asset Management, LLC11,941$1.11M<0.01%-26913F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC11,850$1.1M<0.01%+3,54213F-HRTimelineGroup
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC11,443$1.06M<0.01%-81113F-HRTimelineGroup
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …11,209$1.04M0.01%new13F-HRTimelineGroup
Cambridge Investment Research Advisors,…11,100$1.03M<0.01%-2,27813F-HRTimeline
Entropy Technologies, LP10,790$1M0.05%new13F-HRTimeline
Corient Private Wealth LPgroup of 2 filers holding10,595$986K+4,803Timeline
Illumine Investment Management, LLC10,163$946K0.73%+4613F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND10,150$945K<0.01%013F-HRTimeline
MOODY NATIONAL BANK TRUST DIVISIONin group MOODY NATIONAL BANK TRUST DIV…10,134$943K0.09%+5,30013F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA9,793$912K<0.01%+5,94413F-HRTimelineGroup
QRG CAPITAL MANAGEMENT, INC.9,596$893K0.01%+6,75413F-HRTimeline
Morningstar Investment Management LLCin group Morningstar Investment Manage…9,179$854K0.05%-84813F-HRTimelineGroup
FIFTH THIRD BANCORPin group FIFTH THIRD BANK, NATIONAL AS…9,059$843K<0.01%+8,68013F-HRTimelineGroup
AMALGAMATED BANK8,849$824K0.01%-16313F-HRTimeline
Police & Firemen's Retirement System of…8,678$808K0.01%+46813F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM8,433$785K<0.01%-19713F-HRTimeline
GUGGENHEIM CAPITAL LLCin group GUGGENHEIM CAPITAL LLC8,417$783K0.01%+71313F-HRTimelineGroup
Bridgewater Associates, LP8,301$773K<0.01%new13F-HRTimeline
YOUSIF CAPITAL MANAGEMENT, LLC8,251$768K0.01%-16513F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …8,183$762K<0.01%-3,59913F-HRTimelineGroup
Handelsbanken Fonder AB8,100$754K<0.01%013F-HRTimeline
Summit Global Investmentsin group Summit Global Investments7,998$744K0.04%013F-HRTimelineGroup
TEACHERS RETIREMENT SYSTEM OF THE STATE…7,973$742K0.01%013F-HRTimeline
Peterson Wealth Services7,889$734K0.18%+48613F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…7,790$725K<0.01%+4,51313F-HRTimelineGroup
ProShare Advisors LLC7,776$724K<0.01%-1,20213F-HRTimeline
EVOLVE PRIVATE WEALTH, LLC7,706$717K0.04%+67713F-HRTimeline
Empirical Financial Services, LLC d.b.a…7,654$712K0.01%+2,04713F-HRTimeline
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…7,500$698K<0.01%new13F-HRTimelineGroup
Brooklyn Investment Group7,398$689K0.02%+1,85513F-HRTimeline
North Star Investment Management Corp.7,392$688K0.04%013F-HRTimeline
HighTower Advisors, LLC7,367$686K<0.01%+3,30613F-HRTimeline
STATE BOARD OF ADMINISTRATION OF FLORID…7,080$659K<0.01%013F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND7,023$654K0.01%-3713F-HRTimeline
Freestone Grove Partners LP7,017$653K<0.01%+2813F-HRTimeline
MOKAN Wealth Management Inc.6,995$651K0.29%+3,56913F-HRTimeline
Western Wealth Management, LLC6,936$646K0.02%new13F-HR/ATimeline
MML INVESTORS SERVICES, LLC6,890$641K<0.01%-1,60013F-HRTimeline
State of Tennessee, Department of Treas…6,867$639K<0.01%013F-HRTimeline
MARTINGALE ASSET MANAGEMENT L P6,818$635K0.02%-1013F-HRTimeline
IMC-Chicago, LLC6,736$627K0.01%new13F-HRTimeline
WHITE PINE CAPITAL LLC6,671$621K0.17%013F-HR/ATimeline
KLP KAPITALFORVALTNING AS6,600$614K<0.01%-4,60013F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…6,592$614K<0.01%-8213F-HRTimeline
Brookwood Investment Group LLC6,519$607K0.08%-1,88113F-HRTimeline
Merit Financial Group, LLC6,397$595K<0.01%-47013F-HRTimeline
BOKF, NAin group BOKF, NA6,221$579K0.01%new13F-HRTimelineGroup
Eagle Bay Advisors LLC6,200$577K0.51%+3,00013F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd6,075$565K0.01%new13F-HRTimelineGroup
GABELLI FUNDS LLCin group GAMCO Investors (Gabelli)6,053$563K<0.01%+213F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd5,819$542K0.01%-95213F-HRTimelineGroup
AVIVA PLCin group AVIVA PLC5,308$494K<0.01%-60813F-HRTimelineGroup
Cetera Investment Advisers5,127$477K<0.01%-4,82813F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC5,086$473K<0.01%-72013F-HRTimeline
DRW Securities, LLC5,052$470K0.03%new13F-HRTimeline
Federation des caisses Desjardins du Qu…5,021$467K<0.01%-32513F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…4,881$454K<0.01%+58113F-HRTimelineGroup
Maryland State Retirement & Pension Sys…4,517$420K0.01%013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC4,505$419K<0.01%-171,54213F-HRTimelineGroup
Vestcor Inc4,286$399K0.01%-5,78513F-HRTimeline
Lido Advisors, LLCin group Lido Advisors, LLC4,259$396K<0.01%+64813F-HRTimelineGroup
Moors & Cabot, Inc.4,200$391K0.02%-3,23013F-HRTimeline
LEAVELL INVESTMENT MANAGEMENT, INC.4,121$384K0.02%+73013F-HRTimeline
Alpine Global Management, LLC4,044$376K0.06%new13F-HRTimeline
BANK OF MONTREAL /CAN/in group BANK OF MONTREAL /CAN/4,025$375K<0.01%+75513F-HRTimelineGroup
Firsthand Capital Management, Inc.4,000$372K0.79%013F-HRTimeline
Linden Thomas Advisory Services, LLC3,933$366K0.04%+5713F-HRTimeline
Atria Investments, Inc3,906$364K<0.01%new13F-HRTimeline
Catalyst Funds Management Pty Ltd3,800$354K0.06%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…3,784$352K<0.01%-89413F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.3,696$344K<0.01%+1,04013F-HRTimelineGroup
Numerai GP LLC3,638$339K0.03%new13F-HRTimeline
WEALTH EFFECTS LLC3,571$332K0.12%-7613F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…3,513$327K<0.01%-3013F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…3,457$322K<0.01%013F-HRTimeline
Skandinaviska Enskilda Banken AB (publ)3,430$319K0.01%new13F-HRTimeline
JAMES INVESTMENT RESEARCH, INC.3,408$317K0.04%-4,87313F-HRTimeline
SG Americas Securities, LLC3,375$314K<0.01%-10,79113F-HRTimeline
Edgestream Partners, L.P.3,362$313K0.01%new13F-HRTimeline
ESSEX INVESTMENT MANAGEMENT CO LLC3,350$312K0.05%013F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC3,263$304K<0.01%-1,78913F-HRTimelineGroup
EntryPoint Capital, LLC3,213$299K0.09%new13F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP3,040$296K<0.01%+2,75113F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…5,467$295K<0.01%+1,75413F-HRTimeline