Axcelis Ownership | Who Owns Axcelis?
Axcelis Ownership Summary
Axcelis is owned by 38.34% institutional investors, 0.57% insiders, and 61.09% retail investors. Blackrock is the largest institutional shareholder, holding 17.79% of ACLS shares. NYLI Merger Arbitrage ETF is the top mutual fund, with 8.78% of its assets in Axcelis shares.
ACLS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Axcelis | 38.34% | 0.57% | 61.09% |
| Sector | Technology Stocks | 35.94% | 15.18% | 48.88% |
| Idea | Semiconductor Stocks List | 48.16% | 6.95% | 44.89% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock | 5.81M | 17.79% | $825.67M |
| Blackrock funding, inc. /de | 4.94M | 15.64% | $459.51M |
| Vanguard group | 4.12M | 13.17% | $331.20M |
| Fmr | 2.43M | 7.70% | $226.29M |
| Balyasny asset management | 1.36M | 4.32% | $127.01M |
| Victory capital management | 1.28M | 4.05% | $119.05M |
| State street | 1.19M | 3.77% | $110.68M |
| Bnp paribas asset management | 1.01M | 3.19% | $93.64M |
| Reinhart partners | 928.66K | 3.02% | $175.94M |
| American century companies | 951.91K | 3.01% | $88.60M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Reinhart partners | 928.66K | 4.02% | $175.94M |
| Qsm asset management | 51.57K | 2.27% | $4.63M |
| Jackson square partners | 27.34K | 1.08% | $2.67M |
| New insight wealth advisors | 27.01K | 0.99% | $2.64M |
| Penbrook management | 12.10K | 0.85% | $1.13M |
| Firsthand capital management | 4.00K | 0.79% | $372.32K |
| Illumine investment management | 10.16K | 0.73% | $945.97K |
| Globeflex capital l p | 44.45K | 0.63% | $4.14M |
| Yakira capital management | 22.62K | 0.62% | $2.11M |
| Sagefield capital lp | 82.24K | 0.55% | $7.65M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fmr | 2.43M | 0.01% | 1.82M |
| Balyasny asset management | 1.36M | 0.16% | 1.12M |
| Manufacturers life insurance company, the | 491.75K | 0.04% | 477.70K |
| Morgan stanley | 581.64K | 0.00% | 231.42K |
| Vanguard fiduciary trust | 200.47K | 0.00% | 200.47K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Reinhart partners | 928.66K | 4.02% | -729.09K |
| Victory capital management | 1.28M | 0.08% | -528.40K |
| Blackrock | 5.81M | 0.02% | -332.11K |
| Invesco | 165.07K | 0.00% | -313.82K |
| American century companies | 951.91K | 0.05% | -281.73K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Vanguard fiduciary trust | 200.47K | 0.00% | 200.47K | $18.66M |
| Emerald advisers | 96.24K | 0.28% | 96.24K | $8.96M |
| Norges bank | 88.15K | 0.00% | 88.15K | $7.08M |
| Sagefield capital lp | 82.24K | 0.55% | 82.24K | $7.65M |
| Portolan capital management | 77.17K | 0.38% | 77.17K | $7.18M |
Sold Out
| Holder | Change |
|---|---|
| Cedar mountain advisors | -1.00 |
| Dunhill financial | -1.00 |
| Kelly financial services | -3.00 |
| Mendota financial group | -3.00 |
| Financial gravity asset management | -5.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 231 | -39.37% | 12,105,398 | -61.38% | 38 | 0.39% | 94 | -48.07% | 78 | -38.10% |
| Dec 31, 2025 | 270 | -28.76% | 21,414,134 | -29.60% | 68 | 0.76% | 124 | -33.33% | 87 | -26.27% |
| Sep 30, 2025 | 324 | -2.11% | 28,916,119 | -3.41% | 90 | 1.03% | 159 | -5.36% | 103 | -0.96% |
| Jun 30, 2025 | 339 | 7.96% | 31,517,002 | 1.71% | 98 | 1.07% | 176 | 0.57% | 102 | 22.89% |
| Mar 31, 2025 | 2 | -99.42% | 22,694 | -99.93% | - | 0.00% | 2 | -98.91% | - | -100.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| NYLI Merger Arbitrage ETF | 2.70M | 8.78% | - |
| iShares Core S&P Small-Cap ETF | 1.86M | 6.06% | 655.00 |
| Amundi Fds Global Equity A EUR C | 1.03M | 3.34% | 44.44K |
| Vanguard Total Stock Mkt Idx Inv | 987.00K | 3.21% | 2.73K |
| Vanguard US Total Market Shares ETF | 1.03M | 3.20% | 836.00 |
| Vanguard Information Technology ETF | 768.11K | 2.50% | 4.05K |
| iShares Russell 2000 ETF | 742.36K | 2.42% | 6.86K |
| Vanguard Small Cap Index | 708.12K | 2.30% | -1.03K |
| Pacer US Small Cap Cash Cows 100 ETF | 674.99K | 2.10% | -4.90K |
| PRIMECAP Odyssey Aggressive Growth | 615.89K | 2.00% | -6.10K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jun 03, 2026 | Sayiner Necip | - | Sell | $249.70K |
| May 27, 2026 | Sutton Todd | VP Corporate Controller | Sell | $319.98K |
| May 22, 2026 | St Dennis Thomas | - | Sell | $139.83K |
| May 22, 2026 | Evans Eileen | EVP, General Counsel and Sec'y | Sell | $144.00K |
| May 21, 2026 | Blumenstock Gerald M | EVP, Research, Dev. & Eng. | Sell | $177.28K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 18 |
| 2026 Q1 | - | 2 |
| 2025 Q4 | - | 2 |
| 2025 Q3 | - | - |
| 2025 Q2 | - | 1 |
ACLS Ownership FAQ
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