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Buy ARWR
Arrowhead Research Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -84.49. In total, the insiders bought 575.07K and sold 672.2K ARWR 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
|
-84.49 |
| ● Buy | 575.07K shares |
| ● Sell | 672.2K shares |
|
18% Buy Activity
Moderate Negative Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Jan 05, 2026 Sell |
O'brien Patrick COO |
11 842 Value: $756.0K |
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|
Jan 05, 2026 Sell |
O'brien Patrick COO |
4 368 Value: $267.3K |
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|
Jan 05, 2026 Sell |
O'brien Patrick COO |
6 164 Value: $383.6K |
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|
Jan 05, 2026 Sell |
O'brien Patrick COO |
13 451 Value: $846.9K |
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|
Jan 05, 2026 Sell |
O'brien Patrick COO |
2 700 Value: $174.0K |
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Jan 05, 2026 Sell |
O'brien Patrick COO |
600 Value: $36.7K |
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Jan 05, 2026 Sell |
O'brien Patrick COO |
900 Value: $56.0K |
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|
Jan 05, 2026 Sell |
O'brien Patrick COO |
2 336 Value: $149.6K |
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|
Jan 05, 2026 Sell |
Hamilton James C Chief Medical Officer |
437 Value: $28.8K |
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|
Jan 05, 2026 Sell |
Hamilton James C Chief Medical Officer |
309 Value: $21.0K |
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|
Jan 02, 2026 Sell |
Anzalone Christopher Richard Chief Executive Officer |
7 416 Value: $488.6K |
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|
Jan 02, 2026 Sell |
Anzalone Christopher Richard Chief Executive Officer |
5 771 Value: $383.1K |
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|
Dec 31, 2025 Sell |
O'brien Patrick COO |
560 Value: $0 |
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Dec 31, 2025 Sell |
O'brien Patrick COO |
560 Value: $0 |
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Dec 31, 2025 Sell |
O'brien Patrick COO |
560 Value: $0 |
||
|
Dec 31, 2025 Sell |
O'brien Patrick COO |
560 Value: $0 |
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|
Dec 31, 2025 Sell |
O'brien Patrick COO |
560 Value: $0 |
||
|
Dec 29, 2025 Buy |
Anzalone Christopher Richard Chief Executive Officer |
16 545 Value: $101.8K |
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|
Dec 29, 2025 Buy |
Anzalone Christopher Richard Chief Executive Officer |
35 181 Value: $216.4K |
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|
Dec 29, 2025 Sell |
Anzalone Christopher Richard Chief Executive Officer |
16 545 Value: $1.14M |
||
|
Dec 29, 2025 Buy |
Anzalone Christopher Richard Chief Executive Officer |
35 181 Value: $216.4K |
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|
Dec 29, 2025 Buy |
Anzalone Christopher Richard Chief Executive Officer |
16 545 Value: $101.8K |
||
|
Dec 29, 2025 Sell |
Anzalone Christopher Richard Chief Executive Officer |
35 181 Value: $2.44M |
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|
Dec 26, 2025 Sell |
Ferrari Mauro Director |
7 530 Value: $527.1K |
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|
Dec 22, 2025 Sell |
Anzalone Christopher Richard Chief Executive Officer |
2 574 Value: $177.2K |
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
