As of March 23, 2026, Axcelis Technologies's top three insider holders are Mary G Puma (Executive Chairperson, 231.98K shares), Russell Low (President And Ceo, 130.93K shares), Arthur L Jr George (Director, 58.94K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Mary G Puma | Executive Chairperson | 231,976 | 0 | 09 May, 2024 |
| Russell Low | President And Ceo | 130,928 | 0 | 03 Mar, 2026 |
| Arthur L Jr George | 58,936 | 0 | 17 May, 2021 | |
| James Gordon Coogan | Evp And Cfo | 37,144 | 0 | 03 Mar, 2026 |
| John T Kurtzweil | 35,050 | 0 | 21 May, 2025 | |
| Richard J Faubert | 33,625 | 0 | 12 Aug, 2022 | |
| Greg Redinbo | Evp Marketing And Applications | 31,938 | 0 | 03 Mar, 2026 |
| William J Bintz | Evp, Product Development | 31,173 | 0 | 23 Nov, 2022 |
| Lynnette C Fallon | Executive Vp, Hr/Legal | 27,323 | 0 | 07 Jan, 2025 |
| Eileen Evans | Evp, General Counsel And Sec'Y | 24,406 | 0 | 18 Dec, 2025 |
| Christopher Tatnall | Evp Global Customer Operations | 23,183 | 0 | 03 Mar, 2026 |
| Kevin J Brewer | Evp Chief Financial Officer | 19,597 | 0 | 02 Jan, 2024 |
| Gerald M Blumenstock | Evp, Research, Dev. Eng. | 17,540 | 0 | 03 Mar, 2026 |
| Dennis Thomas St | 17,155 | 0 | 15 May, 2025 | |
| Douglas A. Lawson | Evp, Corporate Mktg Strategy | 15,808 | 0 | 24 Jun, 2024 |
| Robert John Mahoney | Evp Global Operations | 14,633 | 0 | 03 Mar, 2026 |
| Jeanne Quirk | 11,749 | 0 | 15 May, 2025 | |
| Tzu Yin Chiu | 10,403 | 0 | 15 May, 2025 | |
| Dipti Vachani | 9,063 | 0 | 16 May, 2024 | |
| Gregory B Graves | 7,258 | 0 | 15 May, 2025 | |
| Necip Sayiner | 7,258 | 0 | 15 May, 2025 | |
| Jorge Titinger | 6,477 | 0 | 23 Feb, 2026 | |
| Mary G Puma | President And Ceo | 0 | 5,000 | 11 Nov, 2021 |
| Joseph P Keithley | 3,157 | 0 | 14 Dec, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Mar, 2026 | Russell Low | Common Stock | D | 5,227 | $86.58 | 130,928 | D | F |
| 02 Mar, 2026 | Greg Redinbo | Common Stock | D | 723 | $86.58 | 31,938 | D | F |
| 02 Mar, 2026 | Christopher Tatnall | Common Stock | D | 1,121 | $86.58 | 23,183 | D | F |
| 02 Mar, 2026 | Robert John Mahoney | Common Stock | D | 573 | $86.58 | 14,633 | D | F |
| 02 Mar, 2026 | Gerald M Blumenstock | Common Stock | D | 1,121 | $86.58 | 17,540 | D | F |
| 02 Mar, 2026 | James Gordon Coogan | Common Stock | D | 1,800 | $86.58 | 37,144 | D | F |
| 20 Feb, 2026 | Jorge Titinger | Common Stock | D | 1,000 | $80.00 | 6,477 | D | S |
| 15 Jan, 2026 | Robert John Mahoney | Common Stock | A | 1,734 | $0.00 | 15,206 | D | A |
| 17 Dec, 2025 | Jorge Titinger | Common Stock | D | 2,000 | $86.05 | 7,477 | D | S |
| 16 Dec, 2025 | Eileen Evans | Common Stock | D | 1,378 | $86.32 | 24,406 | D | F |
| 11 Dec, 2025 | Gerald M Blumenstock | Common Stock | D | 3,034 | $89.46 | 18,661 | D | S |
| 16 Oct, 2025 | James Gordon Coogan | Common Stock | D | 713 | $83.62 | 38,944 | D | F |
| 15 Sep, 2025 | Greg Redinbo | Common Stock | D | 208 | $87.30 | 32,661 | D | F |
| 15 Sep, 2025 | Christopher Tatnall | Common Stock | D | 137 | $87.30 | 24,304 | D | F |
| 16 Jun, 2025 | Gerald M Blumenstock | Common Stock | D | 506 | $68.96 | 21,695 | D | F |
| 16 Jun, 2025 | Greg Redinbo | Common Stock | D | 734 | $68.96 | 32,869 | D | F |
| 20 May, 2025 | John T Kurtzweil | Common Stock | D | 1,682 | $61.93 | 35,050 | D | S |
| 16 May, 2025 | Russell Low | Common Stock | D | 712 | $61.58 | 137,142 | D | F |
| 16 May, 2025 | Greg Redinbo | Common Stock | D | 190 | $61.58 | 33,603 | D | F |
| 17 May, 2025 | Russell Low | Common Stock | D | 947 | $62.01 | 136,155 | D | F |