AXCELIS TECHNOLOGIES INC
Institutional investors holding ACLS
| Investor | Weight | Quarter |
|---|---|---|
| Donald Smith & Co | 1.50% | 2017Q3 |
| Bill Nygren | 0.30% | 2001Q1 |
| First Eagle Investment Management | 0.01% | 2026Q1 |
Congressional data coming soon
58
Total trades
$7.3M
Volume
15
Buys
43
Sells
Last trade: May 22, 2026
| Date | Insider | Type | Value |
|---|---|---|---|
| May 22, 2026 | Thomas St Dennis | Sell | $144K |
| May 22, 2026 | Thomas St Dennis | Sell | $140K |
Congressional trade data is being sourced and will appear here shortly.
| May 21, 2026 |
| Thomas St Dennis |
| Sell |
| $177K |
| May 20, 2026 | Thomas St Dennis | Sell | $175K |
| May 19, 2026 | Thomas St Dennis | Sell | $486K |
| May 19, 2026 | Thomas St Dennis | Sell | $371K |
| May 19, 2026 | Thomas St Dennis | Sell | $86K |
| May 19, 2026 | Thomas St Dennis | Sell | $251K |
| May 18, 2026 | Thomas St Dennis | Sell | $104K |
| May 18, 2026 | Thomas St Dennis | Sell | $16K |
| May 18, 2026 | Thomas St Dennis | Sell | $12K |
| May 18, 2026 | Thomas St Dennis | Sell | $27K |
| May 18, 2026 | Thomas St Dennis | Sell | $19K |
| May 18, 2026 | Thomas St Dennis | Sell | $27K |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Sell | $577K |
| May 15, 2026 | Thomas St Dennis | Sell | $267K |
| May 15, 2026 | Thomas St Dennis | Sell | $225K |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Sell | $135K |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Sell | $70K |
| May 15, 2026 | Thomas St Dennis | Sell | $33K |
| May 15, 2026 | Thomas St Dennis | Sell | $27K |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Sell | $115K |
| May 15, 2026 | Thomas St Dennis | Sell | $54K |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Sell | $115K |
| May 15, 2026 | Thomas St Dennis | Sell | $54K |
| May 15, 2026 | Thomas St Dennis | Sell | $26K |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Sell | $58K |
| May 15, 2026 | Thomas St Dennis | Sell | $27K |
| May 15, 2026 | Thomas St Dennis | Sell | $26K |
| May 15, 2026 | Thomas St Dennis | Sell | $9K |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Sell | $35K |
| May 15, 2026 | Thomas St Dennis | Buy | – |
| May 15, 2026 | Thomas St Dennis | Sell | $35K |
| May 15, 2026 | Thomas St Dennis | Sell | $17K |
| May 15, 2026 | Thomas St Dennis | Sell | $16K |
| May 14, 2026 | Thomas St Dennis | Sell | $165K |
| May 14, 2026 | Thomas St Dennis | Sell | $422K |
| May 13, 2026 | Thomas St Dennis | Sell | $328K |
| May 13, 2026 | Thomas St Dennis | Sell | $464K |
| May 12, 2026 | Thomas St Dennis | Sell | $364K |
| May 6, 2026 | Thomas St Dennis | Sell | $1.2M |
| May 1, 2026 | Thomas St Dennis | Sell | $173K |
| Apr 20, 2026 | Thomas St Dennis | Sell | $119K |
| Apr 1, 2026 | Thomas St Dennis | Sell | $117K |