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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 |
|---|---|---|---|---|
|
Mar 02, 2026 Sell |
Mahoney Robert John EVP Global Operations |
573 Value: $49.6K |
||
|
Mar 02, 2026 Sell |
Blumenstock Gerald M EVP, Research, Dev. & Eng. |
1 121 Value: $97.1K |
||
|
Mar 02, 2026 Sell |
Redinbo Greg EVP Marketing And Applications |
723 Value: $62.6K |
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|
Mar 02, 2026 Sell |
Low Russell President And CEO |
5 227 Value: $452.6K |
||
|
Feb 20, 2026 Sell |
Titinger Jorge Director |
1 000 Value: $80.0K |
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|
Jan 15, 2026 Buy |
Mahoney Robert John EVP Global Operations |
1 734 Value: $167.3K |
||
|
Dec 19, 2025 Buy |
Mahoney Robert John EVP Global Operations |
0 Value: $0 |
||
|
Dec 17, 2025 Sell |
Titinger Jorge Director |
2 000 Value: $172.1K |
||
|
Dec 16, 2025 Sell |
Evans Eileen EVP, General Counsel And Sec'y |
1 378 Value: $118.9K |
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|
Dec 11, 2025 Sell |
Blumenstock Gerald M EVP, Research, Dev. & Eng. |
3 034 Value: $271.4K |
||
|
Oct 16, 2025 Sell |
Coogan James Gordon EVP And CFO |
713 Value: $59.6K |
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|
Sep 15, 2025 Sell |
Tatnall Christopher EVP Global Customer Operations |
137 Value: $12.0K |
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Sep 15, 2025 Sell |
Redinbo Greg EVP Marketing And Applications |
208 Value: $18.2K |
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|
Sep 15, 2025 Sell |
Redinbo Greg EVP Marketing And Applications |
208 Value: $18.2K |
||
|
Sep 15, 2025 Sell |
Tatnall Christopher EVP Global Customer Operations |
137 Value: $12.0K |
||
|
Jun 16, 2025 Sell |
Blumenstock Gerald M EVP, Research, Dev. & Eng. |
506 Value: $34.9K |
||
|
Jun 16, 2025 Sell |
Redinbo Greg EVP Marketing And Applications |
734 Value: $50.6K |
||
|
Jun 16, 2025 Sell |
Redinbo Greg EVP Marketing And Applications |
734 Value: $50.6K |
||
|
Jun 16, 2025 Sell |
Blumenstock Gerald M EVP, Research, Dev. & Eng. |
506 Value: $34.9K |
||
|
May 20, 2025 Sell |
Kurtzweil John T Director |
1 682 Value: $104.2K |
||
|
May 20, 2025 Sell |
Kurtzweil John T Director |
1 682 Value: $104.2K |
||
|
May 17, 2025 Sell |
Low Russell President And CEO |
947 Value: $58.7K |
||
|
May 16, 2025 Sell |
Redinbo Greg EVP Marketing And Applications |
190 Value: $11.7K |
||
|
May 16, 2025 Sell |
Low Russell President And CEO |
712 Value: $43.8K |
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|
May 16, 2025 Sell |
Low Russell President And CEO |
712 Value: $43.8K |
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
