Over the 90-day window ending January 16, 2026, Axcelis Technologies's three dominant insider ownership positions are held by Executive Chairperson Mary G Puma (236.98K shares), President And Ceo Russell Low (136.16K shares), Director Arthur L Jr George (58.94K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Mary G Puma | Executive Chairperson | 236,976 | 13 May, 2024 |
| Russell Low | President And Ceo | 136,155 | 20 May, 2025 |
| Arthur L Jr George | 58,936 | 17 May, 2021 | |
| James Gordon Coogan | Evp And Cfo | 38,944 | 17 Oct, 2025 |
| John T Kurtzweil | 35,050 | 21 May, 2025 | |
| Richard J Faubert | 33,625 | 12 Aug, 2022 | |
| Greg Redinbo | Evp Marketing And Applications | 32,661 | 17 Sep, 2025 |
| William J Bintz | Evp And Product Development | 31,173 | 23 Nov, 2022 |
| Lynnette C Fallon | Executive Vp And Hr/Legal | 27,323 | 07 Jan, 2025 |
| Eileen Evans | Evp And General Counsel And Sec'Y | 24,406 | 18 Dec, 2025 |
| Christopher Tatnall | Evp Global Customer Operations | 24,304 | 17 Sep, 2025 |
| Kevin J Brewer | Evp & Chief Financial Officer | 19,597 | 02 Jan, 2024 |
| Gerald M Blumenstock | Evp And Research And Dev. & Eng. | 18,661 | 12 Dec, 2025 |
| Dennis Thomas St | 17,155 | 15 May, 2025 | |
| Douglas A. Lawson | Evp And Corporate Mktg & Strategy | 15,808 | 24 Jun, 2024 |
| Jeanne Quirk | 11,749 | 15 May, 2025 | |
| Tzu Yin Chiu | 10,403 | 15 May, 2025 | |
| Dipti Vachani | 9,063 | 16 May, 2024 | |
| Jorge Titinger | 7,477 | 18 Dec, 2025 | |
| Gregory B Graves | 7,258 | 15 May, 2025 | |
| Necip Sayiner | 7,258 | 15 May, 2025 | |
| Joseph P Keithley | 3,157 | 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 |
|---|---|---|---|---|---|---|---|---|
| 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 | - | - | 24,304 | D | |||
| 15 Sep, 2025 | Christopher Tatnall | Common Stock | D | 137 | $87.30 | 24,304 | D | F |
| 16 Jun, 2025 | Greg Redinbo | Common Stock | D | 734 | $68.96 | 32,869 | D | F |
| 16 Jun, 2025 | Gerald M Blumenstock | Common Stock | D | 506 | $68.96 | 21,695 | D | F |
| 20 May, 2025 | John T Kurtzweil | Common Stock | D | 1,682 | $61.93 | 35,050 | D | S |
| 17 May, 2025 | Russell Low | Common Stock | D | 947 | $62.01 | 136,155 | D | F |
| 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 |
| 15 May, 2025 | John T Kurtzweil | Common Stock | A | 3,586 | $0.00 | 36,732 | D | A |
| 15 May, 2025 | Gregory B Graves | Common Stock | A | 3,586 | $0.00 | 7,258 | D | A |
| 15 May, 2025 | Necip Sayiner | Common Stock | A | 3,586 | $0.00 | 7,258 | D | A |
| 15 May, 2025 | Dennis Thomas St | Common Stock | A | 3,586 | $0.00 | 17,155 | D | A |
| 15 May, 2025 | Jorge Titinger | Common Stock | A | 3,586 | $0.00 | 9,477 | D | A |
| 15 May, 2025 | Jorge Titinger | - | - | 9,477 | D | |||
| 15 May, 2025 | Russell Low | Common Stock | A | 30,738 | $0.00 | 141,029 | D | A |