AXCELIS TECHNOLOGIES INC
ACLS- Exchange
- Nasdaq
- Industry
- Special Industry Machinery, NEC
- SEC CIK
- 0001113232
Insider trades, last 90 days
None
- No open-market purchases or sales were filed in the last 90 days.
13F holders, Q2 2026
441
- +61 vs. Q1 2026
- Total value $5.87B
Superinvestors holding ACLS
1
- At the end of Q2 2026
Price chart
Latest insider trades
View all: Latest insider tradesOpen-market purchases and sales by ACLS insiders, newest first.
| Filed (ET) | Trade date | Insider | Transaction | Shares | Avg price | Value | Shares after | Holding change | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Jun 4, 2026 | Jun 3, 2026 | Sayiner NecipDirector | SSaleCommon Stock | −1.59K | $157.44 | −$249.7K | 7.11K | −18.2% | SEC |
| Jun 3, 2026 | Jun 2, 2026 | Mahoney Robert JohnEVP Global Operations | SSaleCommon Stock | −1.16K | $155.24 | −$179.3K | 14.41K | −7.4% | SEC |
| May 28, 2026 | May 27, 2026 | Sutton ToddVP Corporate Controller | SSaleCommon Stock | −2K | $159.99 | −$319.98K | 6.36K | −23.9% | SEC |
| May 26, 2026 | May 22, 2026 | St Dennis ThomasDirector | SSaleCommon Stock | −900 | $155.37 | −$139.83K | 17.7K | −4.8% | SEC |
| May 22, 2026 | May 21, 2026 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | SSaleCommon Stock | −1.16K | $152.70 | −$177.28K | 20.49K | −5.4% | SEC |
Top 5 13F holders, Q2 2026
View all: Top 5 13F holders, Q2 2026The largest institutional positions in ACLS at the end of Q2 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,029,462 | $952.83M | 0.01% | +92,688+1.9% | Added |
| FMR LLC | 4,125,902 | $781.65M | 0.03% | +1,694,781+69.7% | Added |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2,478,878 | $469.62M | 0.02% | −9,415−0.4% | Reduced |
| VANGUARD CAPITAL MANAGEMENT LLC | 1,386,518 | $262.68M | 0.01% | +3,748+0.3% | Added |
| STATE STREET CORP | 1,231,109 | $233.18M | 0.01% | +42,064+3.5% | Added |