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Ionis Pharmaceuticals Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -78.21. In total, the insiders bought 1.04M and sold 578.42K IONS 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
|
-78.21 |
| ● Buy | 1.04M shares |
| ● Sell | 578.42K shares |
|
68% Buy Activity
Moderate Negative Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Jun 26, 2026 Sell |
Schneider Eugene EVP, Chf Clinical Develop Ofcr |
26 000 Value: $2.11M |
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|
Jun 26, 2026 Buy |
Schneider Eugene EVP, Chf Clinical Develop Ofcr |
26 000 Value: $1.58M |
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|
Jun 26, 2026 Sell |
O'neil Patrick R. EVP Clo & General Counsel |
3 069 Value: $245.5K |
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Jun 26, 2026 Buy |
Baroldi Joseph EVP, Chief Business Officer |
3 866 Value: $219.5K |
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Jun 26, 2026 Buy |
Baroldi Joseph EVP, Chief Business Officer |
1 769 Value: $57.7K |
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Jun 26, 2026 Sell |
Baroldi Joseph EVP, Chief Business Officer |
5 635 Value: $451.7K |
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Jun 26, 2026 Buy |
Baroldi Joseph EVP, Chief Business Officer |
3 866 Value: $219.5K |
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|
Jun 26, 2026 Buy |
Baroldi Joseph EVP, Chief Business Officer |
1 769 Value: $57.7K |
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Jun 26, 2026 Buy |
Schneider Eugene EVP, Chf Clinical Develop Ofcr |
26 000 Value: $1.58M |
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Jun 26, 2026 Sell |
Monia Brett P Chief Executive Officer |
50 000 Value: $4.03M |
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Jun 26, 2026 Buy |
Monia Brett P Chief Executive Officer |
50 000 Value: $2.84M |
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Jun 26, 2026 Buy |
Monia Brett P Chief Executive Officer |
50 000 Value: $2.84M |
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Jun 25, 2026 Sell |
Monia Brett P Chief Executive Officer |
21 072 Value: $1.65M |
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Jun 25, 2026 Buy |
Monia Brett P Chief Executive Officer |
21 072 Value: $686.9K |
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Jun 25, 2026 Sell |
Swayze Eric EVP Research |
10 602 Value: $839.5K |
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Jun 25, 2026 Buy |
Monia Brett P Chief Executive Officer |
21 072 Value: $686.9K |
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Jun 24, 2026 Sell |
Monia Brett P Chief Executive Officer |
14 565 Value: $1.14M |
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Jun 24, 2026 Buy |
Monia Brett P Chief Executive Officer |
14 565 Value: $474.8K |
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Jun 24, 2026 Buy |
Monia Brett P Chief Executive Officer |
14 565 Value: $474.8K |
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Jun 15, 2026 Buy |
Berthelsen Spencer R Director |
8 000 Value: $195.4K |
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Jun 15, 2026 Sell |
Berthelsen Spencer R Director |
8 000 Value: $587.9K |
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Jun 15, 2026 Buy |
Berthelsen Spencer R Director |
8 000 Value: $195.4K |
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Jun 12, 2026 Buy |
Kordasiewicz Holly B. EVP, Chief Development Officer |
19 895 Value: $1.13M |
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Jun 12, 2026 Buy |
Kordasiewicz Holly B. EVP, Chief Development Officer |
12 000 Value: $391.2K |
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Jun 12, 2026 Buy |
Kordasiewicz Holly B. EVP, Chief Development Officer |
21 000 Value: $1.28M |
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
