ACLS
Axcelis Technologies, Inc.$181.31+7.74 (+4.46%)Prev Close$173.57·MCap$5.33B·P/E47.84·Vol494.3K·Yield—
▲
Buys (12M)
0
$0.00
▼
Sells (12M)
26
$6.41M
◆
Net Activity
Net Seller
$6.41M
●
Active Insiders
14
last 12 mo
Over the past 12 months, insider activity at Axcelis Technologies, Inc. (ACLS) has been exclusively selling, with 0 insider purchases totaling $0.00 and 26 insider sales totaling $6.41M. The most recent insider transaction was by Sayiner Necip (director), who sold $249.7K worth of shares on Jun 4, 2026. Axcelis Technologies, Inc. operates in the Technology sector, within the Semiconductors industry, with a market cap of $5.33B.
ACLS Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Jun 4, 2026 | Sayiner Necip | director | Sell | 1,586 | $157.44 | $249.7K | 7,112 |
| May 28, 2026 | Sutton Todd | officer: VP Corporate Controller | Sell | 2,000 | $159.99 | $320.0K | 6,360 |
| May 26, 2026 | St Dennis Thomas | director | Sell | 900 | $155.37 | $139.8K | 17,695 |
| May 22, 2026 | Evans Eileen | officer: EVP, General Counsel and Sec'y | Sell | 926 | $155.51 | $144.0K | 31,295 |
| May 22, 2026 | Blumenstock Gerald M | officer: EVP, Research, Dev. & Eng. | Sell | 1,161 | $152.70 | $177.3K | 20,493 |
| May 21, 2026 | Tatnall Christopher | officer: EVP Global Customer Operations | Sell | 1,166 | $149.75 | $174.6K | 27,627 |
| May 20, 2026 | Quirk Jeanne | director | Sell | 1,789 | $140.22 | $250.9K | 11,400 |
| May 20, 2026 | GRAVES GREGORY B | director | Sell | 3,225 | $141.61 | $456.7K | 6,073-35% |
| May 20, 2026 | KURTZWEIL JOHN T | director | Sell | 3,500 | $138.79 | $485.8K | 32,990 |
| May 15, 2026 | Sutton Todd | officer: VP Corporate Controller | Sell | 2,574 | $163.89 | $421.9K | 7,817 |
| May 15, 2026 | Blumenstock Gerald M | officer: EVP, Research, Dev. & Eng. | Sell | 1,015 | $162.32 | $164.8K | 17,293 |
| May 14, 2026 | Redinbo Greg | officer: EVP MARKETING AND APPLICATIONS | Sell | 2,883 | $160.85 | $463.7K | 29,823 |
| May 14, 2026 | Titinger Jorge | director | Sell | 2,000 | $164.14 | $328.3K | 4,477-31% |
| May 13, 2026 | Mahoney Robert John | officer: EVP Global Operations | Sell | 2,258 | $161.00 | $363.5K | 12,759 |
| May 7, 2026 | Low Russell | director, officer: PRESIDENT AND CEO | Sell | 7,468 | $156.75 | $1.17M | 123,570 |
| May 4, 2026 | Low Russell | director, officer: PRESIDENT AND CEO | Sell | 1,244 | $138.86 | $172.7K | 131,038 |
| Mar 26, 2026 | Low Russell | director, officer: PRESIDENT AND CEO | Sell | 1,244 | $90.00 | $112.0K | 133,526 |
| Feb 20, 2026 | Titinger Jorge | Director | Sell | 1,000 | $80.00 | $80.0K | 0 |
| Dec 17, 2025 | Titinger Jorge | Director | Sell | 2,000 | $86.05 | $172.1K | 0 |
| Dec 16, 2025 | Evans Eileen | EVP, General Counsel and Sec'y | Sell | 1,378 | $86.32 | $118.9K | 0 |
| Dec 11, 2025 | Blumenstock Gerald M | EVP, Research, Dev. & Eng. | Sell | 3,034 | $89.46 | $271.4K | 0 |
| Oct 16, 2025 | COOGAN JAMES GORDON | EVP AND CFO | Sell | 713 | $83.62 | $59.6K | 0 |
| Sep 15, 2025 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 208 | $87.30 | $18.2K | 0 |
| Sep 15, 2025 | Tatnall Christopher | EVP Global Customer Operations | Sell | 137 | $87.30 | $12.0K | 0 |
| Jun 16, 2025 | Blumenstock Gerald M | EVP, Research, Dev. & Eng. | Sell | 506 | $68.96 | $34.9K | 0 |
| Jun 16, 2025 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 734 | $68.96 | $50.6K | 0 |
| May 20, 2025 | KURTZWEIL JOHN T | Director | Sell | 1,682 | $61.93 | $104.2K | 0 |
| May 16, 2025 | Low Russell | PRESIDENT AND CEO | Sell | 1,659 | $61.83 | $102.6K | 0 |
| May 16, 2025 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 190 | $61.58 | $11.7K | 0 |
| May 15, 2025 | COOGAN JAMES GORDON | EVP AND CFO | Sell | 574 | $62.67 | $36.0K | 0 |
| May 15, 2025 | Low Russell | PRESIDENT AND CEO | Sell | 3,175 | $62.67 | $199.0K | 0 |
| May 15, 2025 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 386 | $62.67 | $24.2K | 0 |
| May 15, 2025 | Tatnall Christopher | EVP Global Customer Operations | Sell | 515 | $62.67 | $32.3K | 0 |
| Apr 21, 2025 | Tatnall Christopher | EVP Global Customer Operations | Sell | 907 | $45.23 | $41.0K | 0 |
| Feb 28, 2025 | Blumenstock Gerald M | EVP, Research, Dev. & Eng. | Sell | 748 | $54.79 | $41.0K | 0 |
| Feb 28, 2025 | COOGAN JAMES GORDON | EVP AND CFO | Sell | 1,787 | $54.79 | $97.9K | 0 |
| Feb 28, 2025 | Low Russell | PRESIDENT AND CEO | Sell | 9,135 | $54.79 | $500.5K | 0 |
| Feb 28, 2025 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 1,220 | $54.79 | $66.8K | 0 |
| Feb 28, 2025 | Tatnall Christopher | EVP Global Customer Operations | Sell | 1,146 | $54.79 | $62.8K | 0 |
| Jan 3, 2025 | FALLON LYNNETTE C | EXECUTIVE VP, HR/LEGAL | Sell | 3,083 | $71.96 | $221.9K | 0 |
| Oct 16, 2024 | COOGAN JAMES GORDON | EVP AND CFO | Sell | 433 | $95.65 | $41.4K | 0 |
| Sep 16, 2024 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 236 | $98.86 | $23.3K | 0 |
| Sep 16, 2024 | Tatnall Christopher | EVP Global Customer Operations | Sell | 83 | $98.86 | $8.2K | 0 |
| Aug 6, 2024 | Titinger Jorge | Director | Sell | 6,086 | $109.98 | $669.3K | 0 |
| Jun 20, 2024 | Lawson Douglas A. | EVP, CORPORATE MKTG & STRATEGY | Sell | 1,396 | $136.02 | $189.9K | 0 |
| Jun 17, 2024 | Blumenstock Gerald M | EVP, Engineering | Sell | 308 | $138.02 | $42.5K | 0 |
| Jun 17, 2024 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 777 | $138.02 | $107.2K | 0 |
| Jun 5, 2024 | FALLON LYNNETTE C | EXECUTIVE VP, HR/LEGAL AND GEN | Sell | 272 | $111.29 | $30.3K | 0 |
| Jun 5, 2024 | Low Russell | PRESIDENT AND CEO | Sell | 387 | $111.29 | $43.1K | 0 |
| May 20, 2024 | KURTZWEIL JOHN T | Director | Sell | 1,200 | $114.42 | $137.3K | 0 |
Showing 1–50 of 172
1 / 4
ACLS Insider Buying Activity
The following table shows recent insider purchases of Axcelis Technologies, Inc. (ACLS) stock reported via SEC Form 4 filings.
No insider buying activity found for ACLS in the last 12 months.
ACLS Insider Selling Activity
The following table shows recent insider sales of Axcelis Technologies, Inc. (ACLS) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Jun 4, 2026 | Sayiner Necip | director | Sell | 1,586 | $157.44 | $249.7K | 7,112 |
| May 28, 2026 | Sutton Todd | officer: VP Corporate Controller | Sell | 2,000 | $159.99 | $320.0K | 6,360 |
| May 26, 2026 | St Dennis Thomas | director | Sell | 900 | $155.37 | $139.8K | 17,695 |
| May 22, 2026 | Evans Eileen | officer: EVP, General Counsel and Sec'y | Sell | 926 | $155.51 | $144.0K | 31,295 |
| May 22, 2026 | Blumenstock Gerald M | officer: EVP, Research, Dev. & Eng. | Sell | 1,161 | $152.70 | $177.3K | 20,493 |
| May 21, 2026 | Tatnall Christopher | officer: EVP Global Customer Operations | Sell | 1,166 | $149.75 | $174.6K | 27,627 |
| May 20, 2026 | Quirk Jeanne | director | Sell | 1,789 | $140.22 | $250.9K | 11,400 |
| May 20, 2026 | GRAVES GREGORY B | director | Sell | 3,225 | $141.61 | $456.7K | 6,073-35% |
| May 20, 2026 | KURTZWEIL JOHN T | director | Sell | 3,500 | $138.79 | $485.8K | 32,990 |
| May 15, 2026 | Sutton Todd | officer: VP Corporate Controller | Sell | 2,574 | $163.89 | $421.9K | 7,817 |
| May 15, 2026 | Blumenstock Gerald M | officer: EVP, Research, Dev. & Eng. | Sell | 1,015 | $162.32 | $164.8K | 17,293 |
| May 14, 2026 | Redinbo Greg | officer: EVP MARKETING AND APPLICATIONS | Sell | 2,883 | $160.85 | $463.7K | 29,823 |
| May 14, 2026 | Titinger Jorge | director | Sell | 2,000 | $164.14 | $328.3K | 4,477-31% |
| May 13, 2026 | Mahoney Robert John | officer: EVP Global Operations | Sell | 2,258 | $161.00 | $363.5K | 12,759 |
| May 7, 2026 | Low Russell | director, officer: PRESIDENT AND CEO | Sell | 7,468 | $156.75 | $1.17M | 123,570 |
| May 4, 2026 | Low Russell | director, officer: PRESIDENT AND CEO | Sell | 1,244 | $138.86 | $172.7K | 131,038 |
| Mar 26, 2026 | Low Russell | director, officer: PRESIDENT AND CEO | Sell | 1,244 | $90.00 | $112.0K | 133,526 |
| Feb 20, 2026 | Titinger Jorge | Director | Sell | 1,000 | $80.00 | $80.0K | 0 |
| Dec 17, 2025 | Titinger Jorge | Director | Sell | 2,000 | $86.05 | $172.1K | 0 |
| Dec 16, 2025 | Evans Eileen | EVP, General Counsel and Sec'y | Sell | 1,378 | $86.32 | $118.9K | 0 |
| Dec 11, 2025 | Blumenstock Gerald M | EVP, Research, Dev. & Eng. | Sell | 3,034 | $89.46 | $271.4K | 0 |
| Oct 16, 2025 | COOGAN JAMES GORDON | EVP AND CFO | Sell | 713 | $83.62 | $59.6K | 0 |
| Sep 15, 2025 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 208 | $87.30 | $18.2K | 0 |
| Sep 15, 2025 | Tatnall Christopher | EVP Global Customer Operations | Sell | 137 | $87.30 | $12.0K | 0 |
| Jun 16, 2025 | Blumenstock Gerald M | EVP, Research, Dev. & Eng. | Sell | 506 | $68.96 | $34.9K | 0 |
| Jun 16, 2025 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 734 | $68.96 | $50.6K | 0 |
| May 20, 2025 | KURTZWEIL JOHN T | Director | Sell | 1,682 | $61.93 | $104.2K | 0 |
| May 16, 2025 | Low Russell | PRESIDENT AND CEO | Sell | 1,659 | $61.83 | $102.6K | 0 |
| May 16, 2025 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 190 | $61.58 | $11.7K | 0 |
| May 15, 2025 | COOGAN JAMES GORDON | EVP AND CFO | Sell | 574 | $62.67 | $36.0K | 0 |
| May 15, 2025 | Low Russell | PRESIDENT AND CEO | Sell | 3,175 | $62.67 | $199.0K | 0 |
| May 15, 2025 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 386 | $62.67 | $24.2K | 0 |
| May 15, 2025 | Tatnall Christopher | EVP Global Customer Operations | Sell | 515 | $62.67 | $32.3K | 0 |
| Apr 21, 2025 | Tatnall Christopher | EVP Global Customer Operations | Sell | 907 | $45.23 | $41.0K | 0 |
| Feb 28, 2025 | Blumenstock Gerald M | EVP, Research, Dev. & Eng. | Sell | 748 | $54.79 | $41.0K | 0 |
| Feb 28, 2025 | COOGAN JAMES GORDON | EVP AND CFO | Sell | 1,787 | $54.79 | $97.9K | 0 |
| Feb 28, 2025 | Low Russell | PRESIDENT AND CEO | Sell | 9,135 | $54.79 | $500.5K | 0 |
| Feb 28, 2025 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 1,220 | $54.79 | $66.8K | 0 |
| Feb 28, 2025 | Tatnall Christopher | EVP Global Customer Operations | Sell | 1,146 | $54.79 | $62.8K | 0 |
| Jan 3, 2025 | FALLON LYNNETTE C | EXECUTIVE VP, HR/LEGAL | Sell | 3,083 | $71.96 | $221.9K | 0 |
| Oct 16, 2024 | COOGAN JAMES GORDON | EVP AND CFO | Sell | 433 | $95.65 | $41.4K | 0 |
| Sep 16, 2024 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 236 | $98.86 | $23.3K | 0 |
| Sep 16, 2024 | Tatnall Christopher | EVP Global Customer Operations | Sell | 83 | $98.86 | $8.2K | 0 |
| Aug 6, 2024 | Titinger Jorge | Director | Sell | 6,086 | $109.98 | $669.3K | 0 |
| Jun 20, 2024 | Lawson Douglas A. | EVP, CORPORATE MKTG & STRATEGY | Sell | 1,396 | $136.02 | $189.9K | 0 |
| Jun 17, 2024 | Blumenstock Gerald M | EVP, Engineering | Sell | 308 | $138.02 | $42.5K | 0 |
| Jun 17, 2024 | Redinbo Greg | EVP MARKETING AND APPLICATIONS | Sell | 777 | $138.02 | $107.2K | 0 |
| Jun 5, 2024 | FALLON LYNNETTE C | EXECUTIVE VP, HR/LEGAL AND GEN | Sell | 272 | $111.29 | $30.3K | 0 |
| Jun 5, 2024 | Low Russell | PRESIDENT AND CEO | Sell | 387 | $111.29 | $43.1K | 0 |
| May 20, 2024 | KURTZWEIL JOHN T | Director | Sell | 1,200 | $114.42 | $137.3K | 0 |
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