Axcelis Technologies (ACLS) insider trading
15 directors and officers declare holding shares of Axcelis Technologies (ACLS), each in their own filing with the SEC. The largest is Russell Low (PRESIDENT AND CEO · Director) with 154,900 shares, 0.50% of the company, worth $20.8M at the last close. The most recent move on file: Greg Redinbo sold 208 shares at $105.04 on Sep 15, 2026. Of the 15 with a trade on file, 2 last bought and 13 last sold. Purchases and sales are as reported on Forms 3, 4 and 5 — the SEC counts private transactions too, and many large sales follow a plan arranged in advance. Holdings are never added up: two spouses often report the same shares, and a joint filing carries a fund's.
| Insider | Role | Shares | % of company | Value | Last trade on file | Filed |
|---|---|---|---|---|---|---|
| Russell Low | PRESIDENT AND CEO · Director | 154,900 | 0.50% | $20.8M | sold 711 shares at $146.24 on May 18, 2026 | May 18, 2026 |
| Greg Redinbo | EVP and Chief Strategy Officer | 34,816 | 0.11% | $4.7M | sold 208 shares at $105.04 on Sep 15, 2026 | Sep 15, 2026 |
| John T. Kurtzweil | Director | 32,990 | 0.11% | $4.4M | sold 3,500 shares at $138.79 on May 19, 2026 | May 19, 2026 |
| Eileen Evans | EVP, General Counsel and Sec'y | 31,295 | 0.10% | $4.2M | sold 926 shares at $155.51 on May 22, 2026 | May 22, 2026 |
| Christopher Tatnall | EVP Global Customer Operations | 27,491 | 0.09% | $3.7M | sold 136 shares at $105.04 on Sep 15, 2026 | Sep 15, 2026 |
| Gerald M. Blumenstock | EVP, Research, Dev. & Eng. | 19,987 | 0.06% | $2.7M | sold 506 shares at $191.60 on Jun 15, 2026 | Jun 15, 2026 |
| Thomas St Dennis | Director | 17,695 | 0.06% | $2.4M | sold 900 shares at $155.37 on May 22, 2026 | May 22, 2026 |
| Robert John Mahoney | EVP Global Operations | 14,410 | 0.05% | $1.9M | sold 1,155 shares at $155.24 on Jun 2, 2026 | Jun 2, 2026 |
| Tzu Yin Chiu | Director | 11,843 | 0.04% | $1.6M | bought 1,440 shares on May 15, 2026 | May 15, 2026 |
| Jeanne Quirk | Director | 11,400 | 0.04% | $1.5M | sold 1,789 shares at $140.22 on May 19, 2026 | May 19, 2026 |
| David Ryzhik | SVP Interim CFO | 9,790 | 0.03% | $1.3M | sold 221 shares at $145.01 on Jul 15, 2026 | Jul 15, 2026 |
| Necip Sayiner | Director | 7,112 | 0.02% | $953,576.96 | sold 1,586 shares at $157.44 on Jun 3, 2026 | Jun 3, 2026 |
| Todd Sutton | VP Corporate Controller | 6,360 | 0.02% | $852,748.80 | sold 2,000 shares at $159.99 on May 27, 2026 | May 27, 2026 |
| Jorge Titinger | Director | 5,917 | 0.02% | $793,351.36 | bought 1,440 shares on May 15, 2026 | May 15, 2026 |
| Gregory B. Graves | Director | 5,473 | 0.02% | $733,819.84 | sold 3,225 shares at $141.41 on May 19, 2026 | May 19, 2026 |
Each insider at Axcelis Technologies
- Russell Low — PRESIDENT AND CEO · Director
- Greg Redinbo — EVP and Chief Strategy Officer
- John T. Kurtzweil — Director
- Eileen Evans — EVP, General Counsel and Sec'y
- Christopher Tatnall — EVP Global Customer Operations
- Gerald M. Blumenstock — EVP, Research, Dev. & Eng.
- Thomas St Dennis — Director
- Robert John Mahoney — EVP Global Operations
- Tzu Yin Chiu — Director
- Jeanne Quirk — Director
- David Ryzhik — SVP Interim CFO
- Necip Sayiner — Director
No longer filing
- James Gordon Coogan — EVP AND CFO
- Lynnette C. Fallon — EXECUTIVE VP, HR/LEGAL
What insiders bought and sold across AI stocks · All filings on sec.gov