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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 -60.76. In total, the insiders bought 122.28K and sold 81.66K 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
|
-60.76 |
| ● Buy | 122.28K shares |
| ● Sell | 81.66K shares |
|
27% Buy Activity
Negligible or No Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
May 27, 2026 Sell |
Sutton Todd Vp Corporate Controller |
2 000 Value: $320.0K |
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|
May 22, 2026 Sell |
St Dennis Thomas Director |
900 Value: $139.8K |
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May 22, 2026 Sell |
Evans Eileen EVP, General Counsel And Sec'y |
926 Value: $144.0K |
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May 21, 2026 Sell |
Blumenstock Gerald M EVP, Research, Dev. & Eng. |
1 161 Value: $177.3K |
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May 20, 2026 Sell |
Tatnall Christopher EVP Global Customer Operations |
1 166 Value: $174.6K |
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|
May 19, 2026 Sell |
Quirk Jeanne Director |
1 789 Value: $250.9K |
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May 19, 2026 Sell |
Kurtzweil John T Director |
3 500 Value: $485.8K |
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May 19, 2026 Sell |
Graves Gregory B Director |
600 Value: $85.5K |
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May 19, 2026 Sell |
Graves Gregory B Director |
2 625 Value: $371.2K |
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May 18, 2026 Sell |
Low Russell President And CEO |
711 Value: $104.0K |
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May 18, 2026 Sell |
Redinbo Greg EVP Marketing And Applications |
79 Value: $11.6K |
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May 18, 2026 Sell |
Redinbo Greg EVP Marketing And Applications |
111 Value: $16.2K |
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May 18, 2026 Sell |
Mahoney Robert John EVP Global Operations |
130 Value: $19.0K |
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May 18, 2026 Sell |
Mahoney Robert John EVP Global Operations |
182 Value: $26.6K |
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May 18, 2026 Sell |
Sutton Todd Vp Corporate Controller |
184 Value: $26.9K |
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May 15, 2026 Buy |
Low Russell President And CEO |
19 466 Value: $3.02M |
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May 15, 2026 Sell |
Low Russell President And CEO |
1 453 Value: $225.5K |
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May 15, 2026 Sell |
Low Russell President And CEO |
1 722 Value: $267.2K |
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May 15, 2026 Sell |
Low Russell President And CEO |
3 716 Value: $576.6K |
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May 15, 2026 Buy |
Low Russell President And CEO |
19 466 Value: $3.02M |
||
|
May 15, 2026 Sell |
Mahoney Robert John EVP Global Operations |
372 Value: $57.7K |
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|
May 15, 2026 Buy |
Mahoney Robert John EVP Global Operations |
1 947 Value: $302.1K |
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|
May 15, 2026 Sell |
Ryzhik David SVP Interim CFO |
226 Value: $35.1K |
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May 15, 2026 Buy |
Ryzhik David SVP Interim CFO |
3 115 Value: $483.4K |
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|
May 15, 2026 Sell |
Sutton Todd Vp Corporate Controller |
103 Value: $16.0K |
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
