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MKS Instruments Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -90.23. In total, the insiders bought 78.41M and sold 146.62M MKSI 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
|
-90.23 |
| ● Buy | 78.41M shares |
| ● Sell | 146.62M shares |
|
59% Buy Activity
Weak Negative Correlation
|
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Apr 17, 2026 Sell |
Williams John Edward EVP & Gm, Psd |
826 Value: $222.9K |
||
|
Apr 17, 2026 Buy |
Williams John Edward EVP & Gm, Psd |
1 741 Value: $484.9K |
||
|
Apr 17, 2026 Buy |
Williams John Edward EVP & Gm, Psd |
1 741 Value: $484.9K |
||
|
Apr 15, 2026 Buy |
Mccarthy Michelle M SVP & Chief Accounting Officer |
968 Value: $260.4K |
||
|
Apr 15, 2026 Sell |
Mccarthy Michelle M SVP & Chief Accounting Officer |
1 375 Value: $377.1K |
||
|
Apr 15, 2026 Buy |
Mccarthy Michelle M SVP & Chief Accounting Officer |
1 736 Value: $467.0K |
||
|
Apr 15, 2026 Buy |
Mccarthy Michelle M SVP & Chief Accounting Officer |
1 107 Value: $297.8K |
||
|
Apr 15, 2026 Buy |
Mccarthy Michelle M SVP & Chief Accounting Officer |
968 Value: $260.4K |
||
|
Apr 15, 2026 Buy |
Mccarthy Michelle M SVP & Chief Accounting Officer |
1 673 Value: $450.0K |
||
|
Apr 15, 2026 Buy |
Mccarthy Michelle M SVP & Chief Accounting Officer |
1 736 Value: $467.0K |
||
|
Apr 15, 2026 Buy |
Mccarthy Michelle M SVP & Chief Accounting Officer |
1 107 Value: $297.8K |
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|
Mar 12, 2026 Sell |
Moloney Jacqueline F Director |
340 Value: $72.7K |
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|
Mar 06, 2026 Sell |
Taranto Eric Robert EVP & Gm, Vsd |
4 568 Value: $1.01M |
||
|
Mar 02, 2026 Sell |
Mora Elizabeth Director |
300 Value: $71.8K |
||
|
Feb 24, 2026 Sell |
Schreiner James Alan EVP & COO |
4 100 Value: $1.05M |
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Feb 24, 2026 Sell |
Colella Gerald G Director |
10 000 Value: $2.54M |
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|
Feb 20, 2026 Sell |
Colella Gerald G Director |
10 000 Value: $2.53M |
||
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Feb 20, 2026 Sell |
Lee John Tseng-chung President & CEO |
13 310 Value: $3.41M |
||
|
Feb 20, 2026 Sell |
Lee John Tseng-chung President & CEO |
1 988 Value: $512.5K |
||
|
Feb 20, 2026 Sell |
Lee John Tseng-chung President & CEO |
1 890 Value: $490.8K |
||
|
Feb 20, 2026 Sell |
Burke Kathleen Flaherty EVP, GC & Secretary |
4 254 Value: $1.06M |
||
|
Feb 20, 2026 Sell |
Moloney Jacqueline F Director |
829 Value: $205.2K |
||
|
Feb 20, 2026 Sell |
Williams John Edward EVP & Gm, Psd |
2 043 Value: $523.7K |
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Feb 20, 2026 Sell |
Cannone Peter Iii Director |
1 250 Value: $322.6K |
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Feb 20, 2026 Sell |
Henry David Philip EVP, Global Str Mktg & Gm, Msd |
2 000 Value: $523.1K |
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
