DaveManuel.com · Institutional Ownership · Who Owns It
AXCELIS TECHNOLOGIES INC (ACLS)
Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.
448
Reporting holders
$6.0B
Reported value
100.5%
Of shares outstanding
2.2%
Calls
0.7%
Puts
+62
Holder change
Institutions report 31,034,070 shares against 30,881,489 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end. Over 100% because an adviser and a sub-adviser can both report the same shares, and both are counted.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $952.8M | 5,029,462 | 0.01% | 8q | +1.9%+$17.6M |
| FMR LLC | $781.7M | 4,125,902 | 0.03% | 24q | +69.7%+$321.1M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $469.6M | 2,478,878 | 0.02% | 2q | HELD |
| VANGUARD CAPITAL MANAGEMENT LLC | $262.7M | 1,386,518 | 0.01% | 2q | HELD |
| STATE STREET CORP | $233.2M | 1,231,109 | 0.01% | 31q | +3.5%+$8.0M |
| VICTORY CAPITAL MANAGEMENT INC | $214.8M | 1,134,007 | 0.12% | 31q | -11.3%-$27.5M |
| REINHART PARTNERS, LLC. | $175.9M | 928,660 | 4.02% | 10q | -44.0%-$138.1M |
| GEODE CAPITAL MANAGEMENT, LLC | $158.0M | 833,607 | 0.01% | 31q | +2.8%+$4.2M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | $152.2M | 803,151 | 0.15% | 19q | -20.2%-$38.4M |
| DIMENSIONAL FUND ADVISORS LP | $134.3M | 709,266 | 0.02% | 31q | -16.0%-$25.5M |
| Balyasny Asset Management L.P. | $116.7M | 616,196 | 0.15% | 5q | -54.8%-$141.8M |
| PRIMECAP MANAGEMENT CO/CA/ | $115.6M | 610,451 | 0.07% | 31q | -7.3%-$9.1M |
| Invesco Ltd. | $100.0M | 527,724 | 0.01% | 31q | +219.7%+$68.7M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $78.9M | 416,230 | 0.01% | 31q | -6.6%-$5.6M |
| PRICE T ROWE ASSOCIATES INC /MD/ | $74.7M | 394,455 | 0.01% | 18q | +8.9%+$6.1M |
| BARROW HANLEY MEWHINNEY & STRAUSS LLC | $74.3M | 392,240 | 0.23% | 2q | +688040.4%+$74.3M |
| JANE STREET GROUP, LLC | $73.7M incl. $73.4M options CALL+PUT | 1,392 | 0.01% | 25q | HELD |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $72.7M | 383,760 | 0.06% | 31q | -22.0%-$20.5M |
| NORTHERN TRUST CORP | $72.4M | 382,027 | 0.01% | 31q | -8.3%-$6.6M |
| AMERICAN CENTURY COMPANIES INC | $70.1M | 369,879 | 0.03% | 18q | -61.1%-$110.3M |
| MORGAN STANLEY | $69.4M | 366,077 | 0.00% | 35q | -37.1%-$40.8M |
| Boston Trust Walden Corp | $68.1M | 359,256 | 0.52% | 8q | -5.1%-$3.7M |
| EMERALD ADVISERS, LLC | $62.6M | 330,469 | 1.47% | 2q | +243.4%+$44.4M |
| UBS Group AG | $60.8M | 320,891 | 0.01% | 31q | -14.9%-$10.7M |
| Boston Partners | $55.7M | 303,929 | 0.05% | 10q | -10.7%-$6.7M |
| GOLDMAN SACHS GROUP INC | $44.6M | 235,253 | 0.00% | 31q | -52.7%-$49.7M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $43.3M incl. $38.2M options CALL+PUT | 26,829 | 0.00% | 31q | +110.0%+$22.7M |
| VANGUARD FIDUCIARY TRUST CO | $41.8M | 220,809 | 0.01% | 2q | +10.1%+$3.9M |
| EMERALD MUTUAL FUND ADVISERS TRUST | $41.6M | 219,443 | 1.46% | 2q | +362.8%+$32.6M |
| PRINCIPAL FINANCIAL GROUP INC | $41.3M | 218,113 | 0.02% | 31q | +3.8%+$1.5M |
| Allspring Global Investments Holdings, LLC | $39.1M | 219,357 | 0.06% | 19q | -15.2%-$7.0M |
| Bank of New York Mellon Corp | $38.8M | 204,964 | 0.01% | 31q | +2.7%+$1.0M |
| CITIGROUP INC | $34.9M | 184,124 | 0.01% | 31q | +647.1%+$30.2M |
| CITADEL ADVISORS LLC | $30.5M incl. $21.7M options CALL+PUT | 46,239 | 0.00% | 30q | +926.4%+$27.5M |
| MILLENNIUM MANAGEMENT LLC | $29.8M incl. $3.5M options CALL | 139,242 | 0.01% | 14q | +1011.1%+$27.2M |
| IMC-Chicago, LLC | $27.6M CALL+PUT | options only | 0.01% | 10q | OPTIONS |
| First Eagle Investment Management, LLC | $27.3M | 143,850 | 0.02% | 5q | +43.1%+$8.2M |
| D. E. Shaw & Co., Inc. | $26.8M incl. $1.6M options CALL | 133,044 | 0.01% | 18q | -75.6%-$83.0M |
| Grantham, Mayo, Van Otterloo & Co. LLC | $25.7M | 135,580 | 0.06% | 18q | -59.5%-$37.7M |
| ALPINE ASSOCIATES MANAGEMENT INC. | $25.6M | 134,905 | 1.60% | new | NEW |
| Sagefield Capital LP | $25.3M | 133,770 | 1.88% | 2q | +62.7%+$9.8M |
| FEDERATED HERMES, INC. | $25.1M | 132,331 | 0.04% | 7q | -36.7%-$14.6M |
| FIRST TRUST ADVISORS LP | $23.4M | 123,278 | 0.01% | 17q | -10.5%-$2.7M |
| Alberta Investment Management Corp | $20.3M | 107,250 | 0.11% | 2q | +200.0%+$13.5M |
| Public Sector Pension Investment Board | $20.0M | 105,601 | 0.05% | 31q | -3.8%-$793.8K |
| Weiss Asset Management LP | $19.6M | 103,258 | 0.21% | new | NEW |
| KENNEDY CAPITAL MANAGEMENT LLC | $18.0M | 95,038 | 0.32% | 28q | -46.6%-$15.7M |
| BESSEMER GROUP INC | $18.0M | 95,004 | 0.02% | 8q | +150.0%+$10.8M |
| Old West Investment Management, LLC | $17.1M | 90,334 | 1.81% | 4q | +112.6%+$9.1M |
| BANK OF AMERICA CORP /DE/ | $17.1M | 90,147 | 0.00% | 31q | -18.8%-$4.0M |
| BNP PARIBAS FINANCIAL MARKETS | $16.6M | 87,705 | 0.01% | 31q | -39.4%-$10.8M |
| Creative Planning | $15.8M | 83,477 | 0.01% | 14q | +7.4%+$1.1M |
| Nuveen, LLC | $15.4M | 81,142 | 0.00% | 6q | +13.7%+$1.8M |
| RHUMBLINE ADVISERS | $14.5M | 76,372 | 0.01% | 31q | -12.5%-$2.1M |
| Legal & General Group Plc | $13.3M | 70,350 | 0.00% | 31q | -2.2%-$295.4K |
| WELLINGTON MANAGEMENT GROUP LLP | $13.1M | 68,987 | 0.00% | new | NEW |
| DEUTSCHE BANK AG\ | $12.9M | 67,840 | 0.00% | 34q | +135.1%+$7.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $12.5M | 66,069 | 0.00% | 14q | +2.4%+$287.8K |
| ROYCE & ASSOCIATES LP | $12.4M | 65,700 | 0.10% | 31q | -47.6%-$11.3M |
| Swiss National Bank | $11.7M | 61,600 | 0.01% | 31q | +0.7%+$75.8K |
| TWO SIGMA INVESTMENTS, LP | $10.7M incl. $1.6M options CALL+PUT | 48,437 | 0.01% | 8q | -75.5%-$33.1M |
| AMERIPRISE FINANCIAL INC | $10.0M | 52,552 | 0.00% | 31q | -33.2%-$5.0M |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $9.6M | 50,777 | 0.01% | 2q | +577.0%+$8.2M |
| JPMORGAN CHASE & CO | $8.0M | 44,011 | 0.00% | 31q | -80.2%-$32.5M |
| Emerald Investment Advisers, LLC | $7.9M | 41,615 | 0.52% | 2q | +4.7%+$350.7K |
| Virtu Financial LLC | $7.7M | 40,766 | 0.24% | 2q | +177.4%+$4.9M |
| WELLS FARGO & COMPANY/MN | $7.7M | 40,607 | 0.00% | 31q | -21.5%-$2.1M |
| GLOBEFLEX CAPITAL L P | $7.4M | 39,162 | 0.95% | 31q | -11.9%-$1.0M |
| Voleon Capital Management LP | $7.4M | 39,127 | 0.14% | 2q | +11.1%+$740.0K |
| LPL Financial LLC | $7.4M | 38,900 | 0.00% | 21q | +72.9%+$3.1M |
| Polar Asset Management Partners Inc. | $7.3M | 38,728 | 0.12% | new | NEW |
| RAYMOND JAMES FINANCIAL INC | $7.2M | 37,959 | 0.00% | 7q | +1388.6%+$6.7M |
| ENVESTNET ASSET MANAGEMENT INC | $6.8M | 35,707 | 0.00% | 22q | +12.4%+$743.8K |
| AQR CAPITAL MANAGEMENT LLC | $6.7M | 35,538 | 0.00% | 31q | -11.2%-$848.2K |
| NEEDHAM INVESTMENT MANAGEMENT LLC | $6.7M | 35,500 | 0.20% | 3q | -16.5%-$1.3M |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $6.7M | 35,447 | 0.01% | 31q | -2.7%-$184.3K |
| Informed Momentum Co LLC | $6.6M | 35,066 | 0.59% | new | NEW |
| Connor, Clark & Lunn Investment Management Ltd. | $6.4M | 34,043 | 0.01% | 2q | +117.1%+$3.5M |
| SEI INVESTMENTS CO | $6.4M | 33,749 | 0.01% | 26q | -25.1%-$2.1M |
| Amundi | $6.4M | 33,609 | 0.00% | 17q | -17.3%-$1.3M |
| Squarepoint Ops LLC | $6.1M CALL+PUT | options only | 0.01% | 6q | OPTIONS |
| PRUDENTIAL FINANCIAL INC | $6.0M | 31,862 | 0.01% | 31q | +1.5%+$91.9K |
| Jupiter Topco LLC | $6.0M | 31,821 | 0.00% | new | FIRST |
| MERCER GLOBAL ADVISORS INC /ADV | $6.0M | 31,663 | 0.01% | 4q | -34.0%-$3.1M |
| GREAT LAKES ADVISORS, LLC | $6.0M | 31,556 | 0.05% | 2q | -33.7%-$3.0M |
| Verition Fund Management LLC | $5.7M | 30,042 | 0.03% | new | NEW |
| VANGUARD ASSET MANAGEMENT, Ltd | $5.6M | 29,754 | 0.00% | 2q | +9.4%+$484.0K |
| Cambridge Investment Research Advisors, Inc. | $5.6M | 29,561 | 0.01% | 16q | +166.3%+$3.5M |
| Russell Investments Group, Ltd. | $5.4M | 28,274 | 0.00% | 31q | +263.0%+$3.9M |
| STATE OF WISCONSIN INVESTMENT BOARD | $5.0M | 26,472 | 0.01% | 24q | -35.8%-$2.8M |
| HARBOR CAPITAL ADVISORS, INC. | $4.9M | 25,961 | 0.34% | 10q | -37.9%-$3.0M |
| LSV ASSET MANAGEMENT | $4.7M | 24,600 | 0.01% | 4q | -94.3%-$76.7M |
| CANADA LIFE ASSURANCE Co | $4.6M | 24,513 | 0.01% | 27q | -2.5%-$121.4K |
| PARADIGM CAPITAL MANAGEMENT INC/NY | $4.5M | 24,000 | 0.12% | 22q | HELD |
| ISTHMUS PARTNERS, LLC | $4.5M | 23,594 | 0.43% | 10q | -40.1%-$3.0M |
| Qube Research & Technologies Ltd | $4.4M | 23,094 | 0.00% | new | NEW |
| MARSHALL WACE, LLP | $4.2M | 22,248 | 0.00% | new | NEW |
| BRIDGES INVESTMENT MANAGEMENT INC | $4.1M | 21,558 | 0.05% | 9q | -44.2%-$3.2M |
| ALLIANCEBERNSTEIN L.P. | $4.1M | 43,657 | 0.00% | 31q | +26.6%+$853.4K |
| Thrivent Financial for Lutherans | $3.8M | 20,182 | 0.01% | 31q | -1.5%-$58.5K |
Showing the largest 100 of 448 reported holders.
What the company announced
Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.
| Filed | Event date | What | Source |
|---|---|---|---|
| 2026-10-27 | 2026-10-24 | Directors or officers departed or appointed | filing |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Officers and directors
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-19 | KURTZWEIL JOHN T | Director | Sold | 3,500 | $485.8K |
| 2026-05-13 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sold | 2,883 | $463.7K |
| 2026-05-19 | GRAVES GREGORY B | Director | Sold | 3,225 | $456.7K ×2 |
| 2026-05-14 | Sutton Todd | VP Corporate Controller | Sold | 2,574 | $421.9K |
| 2026-05-12 | Mahoney Robert John | EVP Global Operations | Sold | 2,258 | $363.5K |
| 2026-05-13 | Titinger Jorge | Director | Sold | 2,000 | $328.3K |
| 2026-05-27 | Sutton Todd | VP Corporate Controller | Sold | 2,000 | $320.0K |
| 2026-05-19 | Quirk Jeanne | Director | Sold | 1,789 | $250.9K |
| 2026-06-03 | Sayiner Necip | Director | Sold | 1,586 | $249.7K |
| 2026-06-02 | Mahoney Robert John | EVP Global Operations | Sold | 1,155 | $179.3K |
| 2026-05-21 | Blumenstock Gerald M | EVP, Research, Dev. & Eng. | Sold | 1,161 | $177.3K |
| 2026-05-20 | Tatnall Christopher | EVP Global Customer Operations | Sold | 1,166 | $174.6K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 91 | $177.4M | 1,344,522 | 9 | 30 | 21 | 0.0% |
| Q2 2026 | 448 | $6.0B | 31,034,070 | 108 | 112 | 144 | 2.9% |
| Q1 2026 | 386 | $3.1B | 32,571,868 | 64 | 93 | 134 | 1.0% |
| Q4 2025 | 376 | $2.5B | 31,328,334 | 53 | 119 | 118 | 0.7% |
| Q3 2025 | 364 | $3.1B | 30,588,182 | 73 | 102 | 117 | 2.3% |
| Q2 2025 | 335 | $2.3B | 31,789,991 | 65 | 101 | 105 | 3.0% |
| Q1 2025 | 309 | $1.6B | 31,131,894 | 45 | 120 | 90 | 3.4% |
| Q4 2024 | 329 | $2.3B | 30,934,670 | 42 | 118 | 92 | 3.9% |
| Q3 2024 | 372 | $3.3B | 30,425,402 | 51 | 126 | 122 | 2.5% |
| Q2 2024 | 393 | $4.5B | 30,816,808 | 59 | 141 | 124 | 2.7% |
| Q1 2024 | 390 | $3.7B | 31,989,245 | 56 | 118 | 161 | 3.3% |
| Q4 2023 | 424 | $4.1B | 30,434,809 | 56 | 162 | 125 | 4.0% |
| Q3 2023 | 426 | $5.0B | 29,746,696 | 57 | 142 | 147 | 3.2% |
| Q2 2023 | 413 | $5.5B | 29,509,454 | 76 | 109 | 159 | 2.5% |
| Q1 2023 | 387 | $4.1B | 30,052,428 | 88 | 106 | 137 | 1.7% |
| Q4 2022 | 329 | $2.3B | 29,142,438 | 68 | 77 | 120 | 1.0% |
| Q3 2022 | 280 | $2.2B | 36,290,625 | 47 | 88 | 94 | 1.8% |
| Q2 2022 | 268 | $2.6B | 47,158,733 | 37 | 85 | 94 | 1.2% |
| Q1 2022 | 280 | $2.6B | 33,257,422 | 67 | 84 | 92 | 1.8% |
| Q4 2021 | 247 | $3.0B | 39,287,170 | 56 | 67 | 73 | 0.9% |
| Q3 2021 | 200 | $1.9B | 40,691,653 | 39 | 45 | 78 | 0.5% |
| Q2 2021 | 182 | $1.6B | 39,903,238 | 19 | 51 | 76 | 0.4% |
| Q1 2021 | 187 | $1.6B | 39,626,600 | 44 | 47 | 65 | 0.6% |
| Q4 2020 | 167 | $1.2B | 39,409,442 | 21 | 52 | 60 | 0.3% |
| Q3 2020 | 172 | $888.6M | 40,173,816 | 33 | 50 | 51 | 0.5% |
| Q2 2020 | 172 | $1.1B | 40,210,378 | 44 | 51 | 44 | 0.4% |
| Q1 2020 | 135 | $1.0B | 54,826,219 | 20 | 40 | 38 | 0.1% |
| Q4 2019 | 133 | $969.3M | 40,171,655 | 20 | 40 | 39 | 0.1% |
| Q3 2019 | 139 | $646.8M | 37,678,423 | 24 | 41 | 41 | 0.4% |
| Q2 2019 | 130 | $573.8M | 37,967,493 | 14 | 53 | 29 | 0.4% |
| Q1 2019 | 144 | $796.5M | 39,450,127 | 24 | 43 | 31 | 0.4% |
| Q4 2018 | 135 | $709.7M | 39,841,085 | 4 | 2 | 1 | 0.1% |