Axcelis Technologies Inc (ACLS) · Insider trading
What Axcelis Technologies's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$6.42M
13 insiders, 25% under a plan
Net, 12 months
−$6.42M
bought less sold
Latest filing
2026-09-16
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Low RussellDirector, PRESIDENT AND CEO | – | $1.57M | 4 | 2026-05-06 | 123,570 |
| Sutton ToddVP Corporate Controller | – | $741,833 | 2 | 2026-05-27 | 6,360 |
| Blumenstock Gerald MEVP, Research, Dev. & Eng. | – | $613,461 | 3 | 2026-05-21 | 20,493 |
| Kurtzweil John TDirector | – | $589,931 | 2 | 2026-05-19 | 32,990 |
| Titinger JorgeDirector | – | $580,380 | 3 | 2026-05-13 | 4,477 |
| Mahoney Robert JohnEVP Global Operations | – | $542,840 | 2 | 2026-06-02 | 14,410 |
| Redinbo GregEVP MARKETING AND APPLICATIONS | – | $463,731 | 1 | 2026-05-13 | 29,823 |
| Graves Gregory BDirector | – | $456,707 | 2 | 2026-05-19 | 6,073 |
| Quirk JeanneDirector | – | $250,854 | 1 | 2026-05-19 | 11,400 |
| Sayiner NecipDirector | – | $249,700 | 1 | 2026-06-03 | 7,112 |
| Tatnall ChristopherEVP Global Customer Operations | – | $174,608 | 1 | 2026-05-20 | 27,627 |
| Evans EileenEVP, General Counsel and Sec'y | – | $144,002 | 1 | 2026-05-22 | 31,295 |
| St Dennis ThomasDirector | – | $139,833 | 1 | 2026-05-22 | 17,695 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-03 | Sayiner NecipDirector | Sale | 1,586 | 157.44 | $249,700 | 7,112 | Form 4 |
| 2026-06-02 | Mahoney Robert JohnEVP Global Operations | Sale | 1,155 | 155.24 | $179,302 | 14,410 | Form 4 |
| 2026-05-27 | Sutton ToddVP Corporate Controller | Sale | 2,000 | 159.99 | $319,980 | 6,360 | Form 4 |
| 2026-05-22 | St Dennis ThomasDirector | Sale | 900 | 155.37 | $139,833 | 17,695 | Form 4 |
| 2026-05-22 | Evans EileenEVP, General Counsel and Sec'y | Sale | 926 | 155.51 | $144,002 | 31,295 | Form 4 |
| 2026-05-21 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Sale | 1,161 | 152.70 | $177,285 | 20,493 | Form 4 |
| 2026-05-20 | Tatnall ChristopherEVP Global Customer Operations | Sale | 1,166 | 149.75 | $174,608 | 27,627 | Form 4 |
| 2026-05-19 | Kurtzweil John TDirector | Sale | 3,500 | 138.79 | $485,765 | 32,990 | Form 4 |
| 2026-05-19 | Graves Gregory BDirector | Sale | 2,625 | 141.41 | $371,201 | 6,073 | Form 4 |
| 2026-05-19 | Graves Gregory BDirector | Sale | 600 | 142.51 | $85,506 | 5,473 | Form 4 |
| 2026-05-19 | Quirk JeanneDirector | Sale | 1,789 | 140.22 | $250,854 | 11,400 | Form 4 |
| 2026-05-14 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Sale | 1,015 | 162.32 | $164,755 | 17,293 | Form 4 |
| 2026-05-14 | Sutton ToddVP Corporate Controller | Sale | 2,574 | 163.89 | $421,853 | 7,817 | Form 4 |
| 2026-05-13 | Titinger JorgeDirector | Sale | 2,000 | 164.14 | $328,280 | 4,477 | Form 4 |
| 2026-05-13 | Redinbo GregEVP MARKETING AND APPLICATIONS | Sale | 2,883 | 160.85 | $463,731 | 29,823 | Form 4 |
| 2026-05-12 | Mahoney Robert JohnEVP Global Operations | Sale | 2,258 | 161.00 | $363,538 | 12,759 | Form 4 |
| 2026-05-06 | Low RussellDirector, PRESIDENT AND CEO | Saleplan | 7,468 | 156.75 | $1.17M | 123,570 | Form 4 |
| 2026-05-01 | Low RussellDirector, PRESIDENT AND CEO | Saleplan | 1,244 | 138.86 | $172,742 | 131,038 | Form 4 |
| 2026-04-01 | Low RussellDirector, PRESIDENT AND CEO | Saleplan | 1,244 | 94.06 | $117,011 | 132,282 | Form 4 |
| 2026-03-24 | Low RussellDirector, PRESIDENT AND CEO | Saleplan | 1,244 | 90.00 | $111,960 | 133,526 | Form 4 |
| 2026-02-20 | Titinger JorgeDirector | Sale | 1,000 | 80.00 | $80,000 | 6,477 | Form 4 |
| 2025-12-17 | Titinger JorgeDirector | Sale | 2,000 | 86.05 | $172,100 | 7,477 | Form 4 |
| 2025-12-11 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Sale | 3,034 | 89.46 | $271,422 | 18,661 | Form 4 |
| 2025-05-20 | Kurtzweil John TDirector | Sale | 1,682 | 61.93 | $104,166 | 35,050 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
65 × shares withheld for tax42 × grant or award
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-09-15 | Redinbo GregEVP and Chief Strategy Officer | Shares withheld for tax F | −208 | 105.04 | 34,816 | Form 4 |
| 2026-09-15 | Tatnall ChristopherEVP Global Customer Operations | Shares withheld for tax F | −136 | 105.04 | 27,491 | Form 4 |
| 2026-07-15 | Ryzhik DavidSVP Interim CFO | Shares withheld for tax F | −127 | 145.01 | 9,884 | Form 4 |
| 2026-07-15 | Ryzhik DavidSVP Interim CFO | Shares withheld for tax F | −94 | 145.01 | 9,790 | Form 4 |
| 2026-06-16 | Ryzhik DavidSVP Interim CFO | Shares withheld for tax F | −76 | 176.85 | 9,955 | Form 4 |
| 2026-06-15 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Shares withheld for tax F | −506 | 191.60 | 19,987 | Form 4 |
| 2026-05-18 | Low RussellDirector, PRESIDENT AND CEO | Shares withheld for tax F | −711 | 146.24 | 154,900 | Form 4 |
| 2026-05-18 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −111 | 146.24 | 35,103 | Form 4 |
| 2026-05-18 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −79 | 146.24 | 35,024 | Form 4 |
| 2026-05-18 | Mahoney Robert JohnEVP Global Operations | Shares withheld for tax F | −182 | 146.24 | 15,695 | Form 4 |
| 2026-05-18 | Mahoney Robert JohnEVP Global Operations | Shares withheld for tax F | −130 | 146.24 | 15,565 | Form 4 |
| 2026-05-18 | Sutton ToddVP Corporate Controller | Shares withheld for tax F | −184 | 146.24 | 8,360 | Form 4 |
| 2026-05-15 | Low RussellDirector, PRESIDENT AND CEO | Grant or award A | +19,466 | – | 143,036 | Form 4 |
| 2026-05-15 | Low RussellDirector, PRESIDENT AND CEO | Grant or award A | +19,466 | – | 162,502 | Form 4 |
| 2026-05-15 | Low RussellDirector, PRESIDENT AND CEO | Shares withheld for tax F | −3,716 | 155.18 | 158,786 | Form 4 |
| 2026-05-15 | Low RussellDirector, PRESIDENT AND CEO | Shares withheld for tax F | −1,722 | 155.18 | 157,064 | Form 4 |
| 2026-05-15 | Low RussellDirector, PRESIDENT AND CEO | Shares withheld for tax F | −1,453 | 155.18 | 155,611 | Form 4 |
| 2026-05-15 | Evans EileenEVP, General Counsel and Sec'y | Grant or award A | +3,893 | – | 29,195 | Form 4 |
| 2026-05-15 | Evans EileenEVP, General Counsel and Sec'y | Grant or award A | +3,893 | – | 33,088 | Form 4 |
| 2026-05-15 | Evans EileenEVP, General Counsel and Sec'y | Shares withheld for tax F | −867 | 155.18 | 32,221 | Form 4 |
| 2026-05-15 | Redinbo GregEVP MARKETING AND APPLICATIONS | Grant or award A | +3,115 | – | 32,938 | Form 4 |
| 2026-05-15 | Redinbo GregEVP MARKETING AND APPLICATIONS | Grant or award A | +3,115 | – | 36,053 | Form 4 |
| 2026-05-15 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −452 | 155.18 | 35,601 | Form 4 |
| 2026-05-15 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −210 | 155.18 | 35,391 | Form 4 |
| 2026-05-15 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −177 | 155.18 | 35,214 | Form 4 |
| 2026-05-15 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Grant or award A | +2,725 | – | 20,018 | Form 4 |
| 2026-05-15 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Grant or award A | +2,725 | – | 22,743 | Form 4 |
| 2026-05-15 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Shares withheld for tax F | −744 | 155.18 | 21,999 | Form 4 |
| 2026-05-15 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Shares withheld for tax F | −345 | 155.18 | 21,654 | Form 4 |
| 2026-05-15 | Tatnall ChristopherEVP Global Customer Operations | Grant or award A | +3,504 | – | 26,548 | Form 4 |
| 2026-05-15 | Tatnall ChristopherEVP Global Customer Operations | Grant or award A | +3,504 | – | 30,052 | Form 4 |
| 2026-05-15 | Tatnall ChristopherEVP Global Customer Operations | Shares withheld for tax F | −744 | 155.18 | 29,308 | Form 4 |
| 2026-05-15 | Tatnall ChristopherEVP Global Customer Operations | Shares withheld for tax F | −345 | 155.18 | 28,963 | Form 4 |
| 2026-05-15 | Tatnall ChristopherEVP Global Customer Operations | Shares withheld for tax F | −170 | 155.18 | 28,793 | Form 4 |
| 2026-05-15 | Mahoney Robert JohnEVP Global Operations | Grant or award A | +1,947 | – | 14,706 | Form 4 |
| 2026-05-15 | Mahoney Robert JohnEVP Global Operations | Grant or award A | +1,947 | – | 16,653 | Form 4 |
| 2026-05-15 | Mahoney Robert JohnEVP Global Operations | Shares withheld for tax F | −372 | 155.18 | 16,281 | Form 4 |
| 2026-05-15 | Mahoney Robert JohnEVP Global Operations | Shares withheld for tax F | −173 | 155.18 | 16,108 | Form 4 |
| 2026-05-15 | Mahoney Robert JohnEVP Global Operations | Shares withheld for tax F | −170 | 155.18 | 15,938 | Form 4 |
| 2026-05-15 | Mahoney Robert JohnEVP Global Operations | Shares withheld for tax F | −61 | 155.18 | 15,877 | Form 4 |
| 2026-05-15 | Ryzhik DavidSVP Interim CFO | Grant or award A | +3,115 | – | 10,257 | Form 4 |
| 2026-05-15 | Ryzhik DavidSVP Interim CFO | Shares withheld for tax F | −226 | 155.18 | 10,031 | Form 4 |
| 2026-05-15 | Sutton ToddVP Corporate Controller | Grant or award A | +1,168 | – | 8,985 | Form 4 |
| 2026-05-15 | Sutton ToddVP Corporate Controller | Shares withheld for tax F | −226 | 155.18 | 8,759 | Form 4 |
| 2026-05-15 | Sutton ToddVP Corporate Controller | Shares withheld for tax F | −112 | 155.18 | 8,647 | Form 4 |
| 2026-05-15 | Sutton ToddVP Corporate Controller | Shares withheld for tax F | −103 | 155.18 | 8,544 | Form 4 |
| 2026-05-15 | Kurtzweil John TDirector | Grant or award A | +1,440 | – | 36,490 | Form 4 |
| 2026-05-15 | Graves Gregory BDirector | Grant or award A | +1,440 | – | 8,698 | Form 4 |
| 2026-05-15 | Sayiner NecipDirector | Grant or award A | +1,440 | – | 8,698 | Form 4 |
| 2026-05-15 | St Dennis ThomasDirector | Grant or award A | +1,440 | – | 18,595 | Form 4 |
| 2026-05-15 | Titinger JorgeDirector | Grant or award A | +1,440 | – | 5,917 | Form 4 |
| 2026-05-15 | Chiu Tzu YinDirector | Grant or award A | +1,440 | – | 11,843 | Form 4 |
| 2026-05-15 | Quirk JeanneDirector | Grant or award A | +1,440 | – | 13,189 | Form 4 |
| 2026-04-20 | Tatnall ChristopherEVP Global Customer Operations | Shares withheld for tax F | −907 | 131.02 | 23,044 | Form 4 |
| 2026-03-02 | Low RussellDirector, PRESIDENT AND CEO | Shares withheld for tax F | −5,227 | 86.58 | 130,928 | Form 4 |
| 2026-03-02 | Coogan James GordonEVP AND CFO | Shares withheld for tax F | −1,800 | 86.58 | 37,144 | Form 4 |
| 2026-03-02 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −723 | 86.58 | 31,938 | Form 4 |
| 2026-03-02 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Shares withheld for tax F | −1,121 | 86.58 | 17,540 | Form 4 |
| 2026-03-02 | Tatnall ChristopherEVP Global Customer Operations | Shares withheld for tax F | −1,121 | 86.58 | 23,183 | Form 4 |
| 2026-03-02 | Mahoney Robert JohnEVP Global Operations | Shares withheld for tax F | −573 | 86.58 | 14,633 | Form 4 |
| 2026-01-15 | Mahoney Robert JohnEVP Global Operations | Grant or award A | +1,734 | – | 15,206 | Form 4 |
| 2025-12-16 | Evans EileenEVP, General Counsel and Sec'y | Shares withheld for tax F | −1,378 | 86.32 | 24,406 | Form 4 |
| 2025-10-16 | Coogan James GordonEVP AND CFO | Shares withheld for tax F | −713 | 83.62 | 38,944 | Form 4 |
| 2025-09-15 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −208 | 87.30 | 32,661 | Form 4 |
| 2025-09-15 | Tatnall ChristopherEVP Global Customer Operations | Shares withheld for tax F | −137 | 87.30 | 24,304 | Form 4 |
| 2025-06-16 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −734 | 68.96 | 32,869 | Form 4 |
| 2025-06-16 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Shares withheld for tax F | −506 | 68.96 | 21,695 | Form 4 |
| 2025-05-17 | Low RussellDirector, PRESIDENT AND CEO | Shares withheld for tax F | −947 | 62.01 | 136,155 | Form 4 |
| 2025-05-16 | Low RussellDirector, PRESIDENT AND CEO | Shares withheld for tax F | −712 | 61.58 | 137,142 | Form 4 |
| 2025-05-16 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −190 | 61.58 | 33,603 | Form 4 |
| 2025-05-15 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Grant or award A | +6,148 | – | 16,398 | Form 4 |
| 2025-05-15 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Grant or award A | +6,148 | – | 22,546 | Form 4 |
| 2025-05-15 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Shares withheld for tax F | −345 | 62.67 | 22,201 | Form 4 |
| 2025-05-15 | Low RussellDirector, PRESIDENT AND CEO | Grant or award A | +30,738 | – | 110,291 | Form 4 |
| 2025-05-15 | Low RussellDirector, PRESIDENT AND CEO | Grant or award A | +30,738 | – | 141,029 | Form 4 |
| 2025-05-15 | Low RussellDirector, PRESIDENT AND CEO | Shares withheld for tax F | −1,722 | 62.67 | 139,307 | Form 4 |
| 2025-05-15 | Low RussellDirector, PRESIDENT AND CEO | Shares withheld for tax F | −1,453 | 62.67 | 137,854 | Form 4 |
| 2025-05-15 | Coogan James GordonEVP AND CFO | Grant or award A | +12,295 | – | 27,936 | Form 4 |
| 2025-05-15 | Coogan James GordonEVP AND CFO | Grant or award A | +12,295 | – | 40,231 | Form 4 |
| 2025-05-15 | Coogan James GordonEVP AND CFO | Shares withheld for tax F | −574 | 62.67 | 39,657 | Form 4 |
| 2025-05-15 | Redinbo GregEVP MARKETING AND APPLICATIONS | Grant or award A | +6,148 | – | 28,031 | Form 4 |
| 2025-05-15 | Redinbo GregEVP MARKETING AND APPLICATIONS | Grant or award A | +6,148 | – | 34,179 | Form 4 |
| 2025-05-15 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −209 | 62.67 | 33,970 | Form 4 |
| 2025-05-15 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −177 | 62.67 | 33,793 | Form 4 |
| 2025-05-15 | Tatnall ChristopherEVP Global Customer Operations | Grant or award A | +6,148 | – | 18,808 | Form 4 |
| 2025-05-15 | Tatnall ChristopherEVP Global Customer Operations | Grant or award A | +6,148 | – | 24,956 | Form 4 |
| 2025-05-15 | Tatnall ChristopherEVP Global Customer Operations | Shares withheld for tax F | −345 | 62.67 | 24,611 | Form 4 |
| 2025-05-15 | Tatnall ChristopherEVP Global Customer Operations | Shares withheld for tax F | −170 | 62.67 | 24,441 | Form 4 |
| 2025-05-15 | Kurtzweil John TDirector | Grant or award A | +3,586 | – | 36,732 | Form 4 |
| 2025-05-15 | Titinger JorgeDirector | Grant or award A | +3,586 | – | 9,477 | Form 4 |
| 2025-05-15 | St Dennis ThomasDirector | Grant or award A | +3,586 | – | 17,155 | Form 4 |
| 2025-05-15 | Quirk JeanneDirector | Grant or award A | +3,586 | – | 11,749 | Form 4 |
| 2025-05-15 | Graves Gregory BDirector | Grant or award A | +3,586 | – | 7,258 | Form 4 |
| 2025-05-15 | Sayiner NecipDirector | Grant or award A | +3,586 | – | 7,258 | Form 4 |
| 2025-05-15 | Chiu Tzu YinDirector | Grant or award A | +3,586 | – | 10,403 | Form 4 |
| 2025-05-15 | Evans EileenEVP, General Counsel and Sec'y | Grant or award A | +7,172 | – | 18,612 | Form 4 |
| 2025-05-15 | Evans EileenEVP, General Counsel and Sec'y | Grant or award A | +7,172 | – | 25,784 | Form 4 |
| 2025-04-21 | Tatnall ChristopherEVP Global Customer Operations | Shares withheld for tax F | −907 | 45.23 | 12,660 | Form 4 |
| 2025-02-28 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −471 | 54.79 | 22,632 | Form 4 |
| 2025-02-28 | Redinbo GregEVP MARKETING AND APPLICATIONS | Shares withheld for tax F | −749 | 54.79 | 21,883 | Form 4 |
| 2025-02-28 | Low RussellDirector, PRESIDENT AND CEO | Shares withheld for tax F | −3,923 | 54.79 | 84,765 | Form 4 |
| 2025-02-28 | Low RussellDirector, PRESIDENT AND CEO | Shares withheld for tax F | −5,212 | 54.79 | 79,553 | Form 4 |
| 2025-02-28 | Coogan James GordonEVP AND CFO | Shares withheld for tax F | −1,787 | 54.79 | 15,641 | Form 4 |
| 2025-02-28 | Tatnall ChristopherEVP Global Customer Operations | Shares withheld for tax F | −1,146 | 54.79 | 13,567 | Form 4 |
| 2025-02-28 | Blumenstock Gerald MEVP, Research, Dev. & Eng. | Shares withheld for tax F | −748 | 54.79 | 10,250 | Form 4 |
| 2025-01-03 | Fallon Lynnette CEXECUTIVE VP, HR/LEGAL | Shares withheld for tax F | −3,083 | 71.96 | 27,323 | Form 4 |
| 2024-12-16 | Evans EileenEVP, General Counsel and Sec'y | Grant or award A | +11,440 | – | 11,440 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.