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Buy ACLS
Axcelis Technologies Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -64.44. In total, the insiders bought 85.4K and sold 81.46K ACLS shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.
Insider Power
|
-64.44 |
| ● Buy | 85.4K shares |
| ● Sell | 81.46K shares |
|
25% Buy Activity
Negligible or No Correlation
|
|
Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
May 15, 2026 Buy |
Redinbo Greg EVP Marketing And Applications |
3 115 Value: $483.4K |
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|
May 15, 2026 Buy |
Evans Eileen EVP, General Counsel And Sec'y |
3 893 Value: $604.1K |
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|
May 15, 2026 Sell |
Evans Eileen EVP, General Counsel And Sec'y |
867 Value: $134.5K |
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|
May 15, 2026 Buy |
Evans Eileen EVP, General Counsel And Sec'y |
3 893 Value: $604.1K |
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|
May 15, 2026 Buy |
Chiu Tzu Yin Director |
1 440 Value: $223.5K |
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|
May 15, 2026 Buy |
Kurtzweil John T Director |
1 440 Value: $223.5K |
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May 15, 2026 Buy |
Titinger Jorge Director |
1 440 Value: $223.5K |
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May 15, 2026 Buy |
St Dennis Thomas Director |
1 440 Value: $223.5K |
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|
May 15, 2026 Buy |
Sayiner Necip Director |
1 440 Value: $223.5K |
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May 15, 2026 Buy |
Quirk Jeanne Director |
1 440 Value: $223.5K |
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|
May 15, 2026 Buy |
Graves Gregory B Director |
1 440 Value: $223.5K |
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May 14, 2026 Sell |
Sutton Todd Vp Corporate Controller |
2 574 Value: $421.9K |
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|
May 14, 2026 Sell |
Blumenstock Gerald M EVP, Research, Dev. & Eng. |
1 015 Value: $164.7K |
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|
May 13, 2026 Sell |
Titinger Jorge Director |
2 000 Value: $328.3K |
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|
May 13, 2026 Sell |
Redinbo Greg EVP Marketing And Applications |
2 883 Value: $463.7K |
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May 12, 2026 Sell |
Mahoney Robert John EVP Global Operations |
2 258 Value: $363.5K |
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May 06, 2026 Sell |
Low Russell President And CEO |
7 468 Value: $1.17M |
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May 01, 2026 Sell |
Low Russell President And CEO |
1 244 Value: $172.7K |
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Apr 20, 2026 Sell |
Tatnall Christopher EVP Global Customer Operations |
907 Value: $118.8K |
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|
Apr 01, 2026 Sell |
Low Russell President And CEO |
1 244 Value: $117.0K |
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|
Mar 24, 2026 Sell |
Low Russell President And CEO |
1 244 Value: $112.0K |
||
|
Mar 12, 2026 Buy |
Sutton Todd Vp Corporate Controller |
0 Value: $0 |
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|
Mar 12, 2026 Buy |
Ryzhik David SVP Interim CFO |
0 Value: $0 |
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|
Mar 02, 2026 Sell |
Coogan James Gordon EVP And CFO |
1 800 Value: $155.8K |
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|
Mar 02, 2026 Sell |
Tatnall Christopher EVP Global Customer Operations |
1 121 Value: $97.1K |
About Insider Power
Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.
It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.
While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.
* October 6th, 2025 - Tested on 5562 stocks
