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Buy PTGX
Protagonist Therapeutics Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at -84.03. In total, the insiders bought 1.16M and sold 569.31K PTGX 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
|
-84.03 |
| ● Buy | 1.16M shares |
| ● Sell | 569.31K shares |
|
61% Buy Activity
Weak Positive Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
May 29, 2026 Buy |
Waddill William D. Director |
9 000 Value: $106.2K |
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|
May 29, 2026 Buy |
Waddill William D. Director |
9 000 Value: $106.2K |
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|
May 29, 2026 Sell |
Waddill William D. Director |
9 000 Value: $896.8K |
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|
May 12, 2026 Buy |
Patel Dinesh V Ph D President And CEO |
75 000 Value: $1.62M |
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|
May 12, 2026 Sell |
Patel Dinesh V Ph D President And CEO |
75 000 Value: $7.51M |
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|
May 12, 2026 Buy |
Patel Dinesh V Ph D President And CEO |
75 000 Value: $1.62M |
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|
May 08, 2026 Sell |
Giraudo Bryan Director |
5 130 Value: $513.0K |
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|
May 08, 2026 Sell |
Giraudo Bryan Director |
6 000 Value: $600.0K |
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|
May 07, 2026 Buy |
Giraudo Bryan Director |
24 000 Value: $154.8K |
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May 07, 2026 Buy |
Giraudo Bryan Director |
12 000 Value: $83.8K |
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|
May 07, 2026 Sell |
Giraudo Bryan Director |
36 000 Value: $3.61M |
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May 07, 2026 Sell |
Giraudo Bryan Director |
12 000 Value: $1.20M |
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May 07, 2026 Buy |
Giraudo Bryan Director |
12 000 Value: $83.8K |
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|
May 07, 2026 Buy |
Giraudo Bryan Director |
24 000 Value: $154.8K |
||
|
Apr 23, 2026 Sell |
Patel Dinesh V Ph D President And CEO |
1 460 Value: $0 |
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|
Apr 20, 2026 Sell |
Ali Asif Chief Financial Officer |
1 750 Value: $184.6K |
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Mar 26, 2026 Sell |
Ali Asif Chief Financial Officer |
24 765 Value: $2.58M |
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Mar 26, 2026 Buy |
Ali Asif Chief Financial Officer |
19 500 Value: $374.2K |
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Mar 26, 2026 Buy |
Ali Asif Chief Financial Officer |
5 265 Value: $64.1K |
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Mar 26, 2026 Buy |
Selick Harold E Director |
24 000 Value: $309.1K |
||
|
Mar 26, 2026 Sell |
Selick Harold E Director |
24 000 Value: $2.52M |
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Mar 26, 2026 Buy |
Molina Arturo Md Chief Medical Officer |
15 000 Value: $120.6K |
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|
Mar 26, 2026 Buy |
Ali Asif Chief Financial Officer |
19 500 Value: $374.2K |
||
|
Mar 26, 2026 Buy |
Ali Asif Chief Financial Officer |
5 265 Value: $64.1K |
||
|
Mar 26, 2026 Sell |
Molina Arturo Md Chief Medical Officer |
15 000 Value: $1.57M |
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
