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Axcelis Techs (ACLS)
NASDAQ
$175.00+$3.94 (+2.30%)
Price as of Jun 23, 2026 7:51 PM EDT- $5.7BMarket Cap
- 176.45%1-Year Change
- Semiconductor Equipment & MaterialsIndustry
Axcelis Techs (ACLS)
$175.00+$3.94 (+2.30%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK INC. | 18.89% | 5.8M | -332,111 (-5.72%) | Jun 30, 2024 |
BLACKROCK FUNDING, INC. /DE | 17.72% | 5.4M | +108,636 (+1.99%) | Dec 31, 2024 |
BLACKROCK, INC. | 16.06% | 4.9M | +109,199 (+2.21%) | Mar 31, 2026 |
VANGUARD GROUP INC | 13.41% | 4.1M | -63,172 (-1.53%) | Dec 31, 2025 |
N/A | 8.10% | 2.5M | +2.5M (+100.00%) | Mar 31, 2026 |
FMR LLC | 7.91% | 2.4M | +1.8M (+74.88%) | Mar 31, 2026 |
REINHART PARTNERS, INC. | 5.39% | 1.7M | +67,847 (+4.09%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
iSHARES TRUST | 10.49% | 3.2M | -23,887 (-0.74%) | Mar 31, 2026 |
VANGUARD INDEX FUNDS | 8.09% | 2.5M | +4,825 (+0.19%) | Mar 31, 2026 |
VANGUARD WORLD FUND | 2.55% | 785,173 | +19,227 (+2.45%) | Feb 28, 2026 |
PRIMECAP Odyssey Funds | 2.02% | 621,986 | -151,964 (-24.43%) | Jan 31, 2026 |
AMERICAN CENTURY CAPITAL PORTFOLIOS INC | 1.51% | 465,000 | -170,000 (-36.56%) | Mar 31, 2026 |
SPDR SERIES TRUST | 1.45% | 446,288 | +6,268 (+1.40%) | Mar 31, 2026 |
DFA INVESTMENT DIMENSIONS GROUP INC | 1.45% | 444,270 | +1,203 (+0.27%) | Jan 31, 2026 |
Current Ownership Distribution
- Institutions542.6M (74.70%)
- Mutual Funds181.7M (25.02%)
- Insiders2.1M (0.29%)
- Other0 (0.00%)
Insider Transactions
- 0.29% (2.1M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 1Number of InsiderSelling (last 12 months)
- $24.2MAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Ryzhik David SVP Interim CFO | In Kind | Jun 16, 2026 | $13,440.22 | 76 | $176.84 | 9,955 |
Low Russell PRESIDENT AND CEO | Sell | Apr 01, 2026 | $117,010.64 | 1,244 | $94.06 | 132,282 |
Low Russell PRESIDENT AND CEO | Sell | Mar 24, 2026 | $111,960.00 | 1,244 | $90.00 | 133,526 |
Blumenstock Gerald M EVP, Research, Dev. & Eng. | In Kind | Mar 02, 2026 | $97,056.18 | 1,121 | $86.58 | 17,540 |
COOGAN JAMES GORDON EVP AND CFO | In Kind | Mar 02, 2026 | $155,844.00 | 1,800 | $86.58 | 37,144 |
Mahoney Robert John EVP Global Operations | In Kind | Mar 02, 2026 | $49,610.34 | 573 | $86.58 | 14,633 |
Mahoney Robert John EVP Global Operations | Award | Jan 15, 2026 | $0.00 | 1,734 | $0.00 | 15,206 |
COOGAN JAMES GORDON EVP AND CFO | In Kind | Oct 16, 2025 | $59,621.06 | 713 | $83.62 | 38,944 |
Redinbo Greg EVP MARKETING AND APPLICATIONS | In Kind | Sep 15, 2025 | $18,158.40 | 208 | $87.30 | 32,661 |
Tatnall Christopher EVP Global Customer Operations | In Kind | Sep 15, 2025 | $11,960.10 | 137 | $87.30 | 24,304 |
Blumenstock Gerald M EVP, Research, Dev. & Eng. | In Kind | Jun 16, 2025 | $34,893.76 | 506 | $68.96 | 21,695 |
Redinbo Greg EVP MARKETING AND APPLICATIONS | In Kind | Jun 16, 2025 | $50,616.64 | 734 | $68.96 | 32,869 |
KURTZWEIL JOHN T | Sell | May 20, 2025 | $104,166.26 | 1,682 | $61.93 | 35,050 |
Low Russell PRESIDENT AND CEO | In Kind | May 17, 2025 | $58,723.47 | 947 | $62.01 | 136,155 |
Redinbo Greg EVP MARKETING AND APPLICATIONS | In Kind | May 16, 2025 | $11,700.20 | 190 | $61.58 | 33,603 |
Low Russell PRESIDENT AND CEO | In Kind | May 16, 2025 | $43,844.96 | 712 | $61.58 | 137,142 |
Tatnall Christopher EVP Global Customer Operations | In Kind | Apr 21, 2025 | $41,023.61 | 907 | $45.23 | 12,660 |
FALLON LYNNETTE C EXECUTIVE VP, HR/LEGAL | In Kind | Jan 03, 2025 | $221,852.68 | 3,083 | $71.96 | 27,323 |
COOGAN JAMES GORDON EVP AND CFO | In Kind | Oct 16, 2024 | $41,416.45 | 433 | $95.65 | 1,140 |