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Buy PACB
Pacific Biosciences of California Stock Insider Power
Based on the 100 latest insides trades, we have calculated the insider power to be negative at 0.97. In total, the insiders bought 23.51M and sold 2.13M PACB 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
|
0.97 |
| ● Buy | 23.51M shares |
| ● Sell | 2.13M shares |
|
64% Buy Activity
Negligible or No Correlation
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Historical Insider Trades
| Date | Type | Person | Role | Amount |
|---|---|---|---|---|
|
Jun 03, 2026 Buy |
Milligan John F Director |
223 492 Value: $353.1K |
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Jun 03, 2026 Buy |
Livingston Randall S Director |
223 492 Value: $353.1K |
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Jun 03, 2026 Buy |
Valantine Hannah Director |
223 492 Value: $353.1K |
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Jun 03, 2026 Buy |
Gibson Christopher Director |
74 497 Value: $117.7K |
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|
Jun 03, 2026 Buy |
Mohr Marshall Director |
223 492 Value: $353.1K |
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Jun 03, 2026 Buy |
Smith Christopher M Director |
223 492 Value: $353.1K |
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|
Jun 03, 2026 Buy |
Ericson William W. Director |
223 492 Value: $353.1K |
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Jun 03, 2026 Buy |
Ordonez Kathy Director |
223 492 Value: $353.1K |
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|
Apr 08, 2026 Buy |
Gibson Christopher Director |
77 842 Value: $118.3K |
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Apr 08, 2026 Buy |
Gibson Christopher Director |
57 473 Value: $84.5K |
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Apr 01, 2026 Sell |
Gibson James R Ii See Remarks |
88 185 Value: $120.8K |
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|
Mar 03, 2026 Buy |
Gibson Christopher Director |
53 913 Value: $81.9K |
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Mar 03, 2026 Buy |
Gibson Christopher Director |
73 087 Value: $111.1K |
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Mar 03, 2026 Buy |
Gibson Christopher |
0 Value: $0 |
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Mar 03, 2026 Sell |
Farmer Michele See Remarks |
2 979 Value: $5K |
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Mar 03, 2026 Sell |
Van Oene Mark See Remarks |
6 504 Value: $10K |
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Mar 03, 2026 Sell |
Henry Christian O See Remarks |
12 497 Value: $18.9K |
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Feb 27, 2026 Buy |
Henry Christian O See Remarks |
1 841 621 Value: $3.09M |
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Feb 27, 2026 Buy |
Van Oene Mark See Remarks |
1 000 000 Value: $1.68M |
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Feb 27, 2026 Buy |
Gibson James R Ii See Remarks |
667 696 Value: $1.12M |
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Feb 27, 2026 Buy |
Farmer Michele See Remarks |
179 670 Value: $301.8K |
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Feb 27, 2026 Buy |
Farmer Michele See Remarks |
89 835 Value: $150.9K |
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Feb 27, 2026 Buy |
Gibson James R Ii See Remarks |
333 848 Value: $560.9K |
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|
Feb 27, 2026 Buy |
Van Oene Mark See Remarks |
500 000 Value: $840.0K |
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|
Feb 27, 2026 Buy |
Henry Christian O See Remarks |
920 810 Value: $1.55M |
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
