Axcelis Technologies Inc. 13F holders
442 funds reported a position in Axcelis Technologies Inc. in their 13F for the quarter ended 30 June 2026, together 31.0 million shares worth $5.87 billion. Against the quarter before, 100 opened a position, 116 added, 146 trimmed and 46 sold out; together they sold a net 1.6 million shares. The largest holders: BlackRock, Inc., FMR LLC and Vanguard Portfolio Management LLC.
Funds holding442+62 on Q1 2026
Shares they held31.0Mworth $5.87 billion
Net sold on the quarter1.6M sharesabout $302.1 million at the funds' values
Funds buying to selling216 to 192opened or added, to cut or sold
Opened 100Added 116Held 77Trimmed 146Sold out 46
What each fund did in ACLS against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in ACLS in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
2,671 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 69 reported a position in Axcelis Technologies Inc.: 5 opened one, 22 added, 16 trimmed and 21 sold out, a net 113,385 shares bought.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 7 reported a position in Axcelis Technologies Inc. in a 13F for the quarter ended 30 June 2026. The largest: FMR LLC, 4.1 million shares worth $781.7 million, 0.0% of its reported book. Sold out: Bridgewater Associates. In the quarter, 5 funds added or opened a position and 2 trimmed or sold out; together they bought a net 1.7 million shares, about $327.5 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| FMR LLC | 4,125,902 | $781.7 million | 0.0% | +1,694,781 | added | 30 June 2026 | 13F |
| Geode Capital Management | 833,607 | $158.0 million | 0.0% | +22,343 | added | 30 June 2026 | 13F |
| Millennium Management | 139,242 | $26.4 million | 0.0% | +126,710 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 48,437 | $9.2 million | 0.0% | -149,129 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 46,239 | $8.8 million | 0.0% | +41,734 | added | 30 June 2026 | 13F |
| Norges Bank | 4,834 | $915,801 | 0.0% | held | 30 June 2026 | 13F | |
| Point72 Asset Management | 3,000 | $568,350 | 0.0% | +750 | added | 30 June 2026 | 13F |
| Bridgewater Associates | 0 | $0 | 0.0% | -8,301 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 5,029,462 | 16.21% | $952.8 million | 0.01% | +92,688 | 13F |
| FMR LLC | 4,125,902 | 13.29% | $781.7 million | 0.03% | +1,694,781 | 13F |
| Vanguard Portfolio Management LLC | 2,478,878 | 7.99% | $469.6 million | 0.02% | -9,415 | 13F |
| Vanguard Capital Management LLC | 1,386,518 | 4.47% | $262.7 million | 0.01% | +3,748 | 13F |
| State Street Corp. | 1,231,109 | 3.97% | $233.2 million | 0.01% | +42,064 | 13F |
| Victory Capital Management Inc. | 1,134,007 | 3.65% | $214.8 million | 0.12% | -144,998 | 13F |
| Reinhart Partners, LLC. | 928,660 | 2.99% | $175.9 million | 4.02% | -729,085 | 13F |
| Geode Capital Management, LLC | 833,607 | 2.69% | $158.0 million | 0.01% | +22,343 | 13F |
| BNP Paribas Asset Management Holding S.A. | 803,151 | 2.59% | $152.2 million | 0.15% | -202,877 | 13F |
| Dimensional Fund Advisors LP | 709,266 | 2.29% | $134.3 million | 0.02% | -134,831 | 13F |
| Balyasny Asset Management L.P. | 616,196 | 1.99% | $116.7 million | 0.22% | -748,344 | 13F |
| Primecap Management Co. | 610,451 | 1.97% | $115.6 million | 0.07% | -48,201 | 13F |
| Invesco Ltd. | 527,724 | 1.70% | $100.0 million | 0.01% | +362,649 | 13F |
| Charles Schwab Investment Management Inc. | 416,230 | 1.34% | $78.9 million | 0.01% | -29,539 | 13F |
| Price T Rowe Associates Inc. | 394,455 | 1.27% | $74.7 million | 0.01% | +32,253 | 13F |
| Barrow Hanley Mewhinney & Strauss LLC | 392,240 | 1.26% | $74.3 million | 0.23% | +392,183 | 13F |
| Manufacturers Life Insurance Company, the | 383,760 | 1.24% | $72.7 million | 0.06% | -107,985 | 13F |
| Northern Trust Corp. | 382,027 | 1.23% | $72.4 million | 0.01% | -34,676 | 13F |
| American Century Companies Inc. | 369,879 | 1.19% | $70.1 million | 0.03% | -582,035 | 13F |
| Morgan Stanley | 366,077 | 1.18% | $69.4 million | 0.00% | -215,559 | 13F |
| Boston Trust Walden Corp | 359,256 | 1.16% | $68.1 million | 0.52% | -19,269 | 13F |
| Emerald Advisers, LLC | 330,469 | 1.06% | $62.6 million | 1.47% | +234,231 | 13F |
| UBS Group AG | 320,891 | 1.03% | $60.8 million | 0.01% | -56,346 | 13F |
| Boston Partners | 303,929 | 0.98% | $55.7 million | 0.05% | -36,346 | 13F |
| Goldman Sachs Group Inc. | 235,253 | 0.76% | $44.6 million | 0.01% | -262,371 | 13F |
| Vanguard Fiduciary Trust Co. | 220,809 | 0.71% | $41.8 million | 0.01% | +20,344 | 13F |
| Emerald Mutual Fund Advisers Trust | 219,443 | 0.71% | $41.6 million | 1.46% | +172,031 | 13F |
| Principal Financial Group Inc. | 218,113 | 0.70% | $41.3 million | 0.02% | +7,911 | 13F |
| Allspring Global Investments Holdings, LLC | 219,357 | 0.71% | $39.1 million | 0.06% | -39,179 | 13F |
| Bank of New York Mellon Corp | 204,964 | 0.66% | $38.8 million | 0.01% | +5,292 | 13F |
| Citigroup Inc. | 184,124 | 0.59% | $34.9 million | 0.02% | +159,479 | 13F |
| First Eagle Investment Management, LLC | 143,850 | 0.46% | $27.3 million | 0.02% | 13F | |
| Millennium Management LLC | 139,242 | 0.45% | $26.4 million | 0.02% | +126,710 | 13F |
| Grantham, Mayo, Van Otterloo & Co. LLC | 135,580 | 0.44% | $25.7 million | 0.06% | -199,206 | 13F |
| Alpine Associates Management Inc. | 134,905 | 0.43% | $25.6 million | 1.60% | new | 13F |
| Sagefield Capital LP | 133,770 | 0.43% | $25.3 million | 1.88% | +51,532 | 13F |
| D. E. Shaw & Co., Inc. | 133,044 | 0.43% | $25.2 million | 0.02% | -411,377 | 13F |
| Federated Hermes, Inc. | 132,331 | 0.43% | $25.1 million | 0.04% | -76,867 | 13F |
| First Trust Advisors LP | 123,278 | 0.40% | $23.4 million | 0.01% | -14,501 | 13F |
| Alberta Investment Management Corp | 107,250 | 0.35% | $20.3 million | 0.13% | +71,500 | 13F |
| Public Sector Pension Investment Board | 105,601 | 0.34% | $20.0 million | 0.05% | -4,190 | 13F |
| Weiss Asset Management LP | 103,258 | 0.33% | $19.6 million | 0.28% | new | 13F |
| Kennedy Capital Management LLC | 95,038 | 0.31% | $18.0 million | 0.32% | -82,978 | 13F |
| Bessemer Group Inc. | 95,004 | 0.31% | $18.0 million | 0.03% | +57,003 | 13F |
| Old West Investment Management, LLC | 90,334 | 0.29% | $17.1 million | 1.81% | +47,853 | 13F |
| Bank of America Corp. | 90,147 | 0.29% | $17.1 million | 0.00% | -20,852 | 13F |
| BNP Paribas Financial Markets | 87,705 | 0.28% | $16.6 million | 0.01% | -56,973 | 13F |
| Creative Planning | 83,477 | 0.27% | $15.8 million | 0.01% | +5,765 | 13F |
| Nuveen, LLC | 81,142 | 0.26% | $15.4 million | 0.00% | +9,757 | 13F |
| Rhumbline Advisers | 76,372 | 0.25% | $14.5 million | 0.01% | -10,935 | 13F |
The 50 largest of the 442 funds that reported a position in ACLS in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on ACLS
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 87,500 | $16.6 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 27,200 | $5.2 million | 30 June 2026 | 13F |
| Millennium Management | Calls | 18,300 | $3.5 million | 30 June 2026 | 13F |
| Two Sigma Investments | Puts | 4,700 | $890,415 | 30 June 2026 | 13F |
| Two Sigma Investments | Calls | 3,600 | $682,020 | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 6 August 2026 | 13G/A | FMR LLC and 3 others | 4.1 million | 13.4% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 14 July 2026 | 13G/A | Reinhart Partners, LLC. and 1 other | 928,660 | 3.0% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 7 May 2026 | 13G/A | FMR LLC and 3 others | 3.5 million | 11.3% | 30 April 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 6 May 2026 | 13G | FMR LLC and 3 others | 2.4 million | 7.9% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 29 April 2026 | 13G | Vanguard Capital Management and 1 other | 1.6 million | 5.3% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 28 April 2026 | 13G | Vanguard Portfolio Management and 1 other | 2.5 million | 8.1% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 12 February 2026 | 13G | Reinhart Partners, LLC. and 1 other | 1.6 million | 5.2% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 14 November 2025 | 13G/A | American Century Investment Management, Inc. and 5 others | 1.3 million | 4.3% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.