NASDAQ:PACB

Pacific Biosciences Of California Stock Insider Trading

etoro logo Buy PACB
*Your capital is at risk
$1.45
-0.180 (-11.04%)
At Close: Jun 05, 2026

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

(Last 100 transactions)
0.97
Buy 23.51M shares
Sell 2.13M shares
64% Buy Activity
Negligible or No Correlation
Buy Signal Low Confidence
Feb 27, 2026

Analysis Breakdown:

  • Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date Type Person Role Amount
May 19, 2025
Sell
Common Stock
S-Sale
Farmer Michele
See Remarks
Officer 5 195
Value: $5K
Mar 31, 2025
Buy
Stock Option (right to buy)
A-Award
Gibson James R Ii
See Remarks
Officer 2 000 000
Value: $2.36M
Mar 31, 2025
Buy
Common Stock
A-Award
Gibson James R Ii
See Remarks
Officer 1 000 000
Value: $1.18M
Mar 31, 2025
Buy
Common Stock
J-Other
Gibson James R Ii
Officer
Officer 0
Value: $0
Mar 31, 2025
Buy
Common Stock
J-Other
Gibson James R Ii
Officer
Officer 0
Value: $0
Mar 31, 2025
Buy
Common Stock
A-Award
Gibson James R Ii
See Remarks
Officer 1 000 000
Value: $1.18M
Mar 31, 2025
Buy
Stock Option (right to buy)
A-Award
Gibson James R Ii
See Remarks
Officer 2 000 000
Value: $2.36M
Mar 19, 2025
Buy
Common Stock
A-Award
Farmer Michele
See Remarks
Officer 89 835
Value: $112.3K
Mar 19, 2025
Buy
Stock Option (right to buy)
A-Award
Farmer Michele
See Remarks
Officer 179 670
Value: $224.6K
Mar 19, 2025
Buy
Common Stock
A-Award
Van Oene Mark
See Remarks
Officer 449 176
Value: $561.5K
Mar 19, 2025
Buy
Stock Option (right to buy)
A-Award
Van Oene Mark
See Remarks
Officer 898 352
Value: $1.12M
Mar 19, 2025
Buy
Common Stock
A-Award
Henry Christian O
See Remarks
Officer 920 810
Value: $1.15M
Mar 19, 2025
Buy
Stock Option (right to buy)
A-Award
Henry Christian O
See Remarks
Officer 1 841 621
Value: $2.30M
Mar 19, 2025
Buy
Stock Option (right to buy)
A-Award
Henry Christian O
See Remarks
Officer 1 841 621
Value: $2.30M
Mar 19, 2025
Buy
Common Stock
A-Award
Henry Christian O
See Remarks
Officer 920 810
Value: $1.15M
Mar 19, 2025
Buy
Stock Option (right to buy)
A-Award
Van Oene Mark
See Remarks
Officer 898 352
Value: $1.12M
Mar 19, 2025
Buy
Common Stock
A-Award
Van Oene Mark
See Remarks
Officer 449 176
Value: $561.5K
Mar 19, 2025
Buy
Stock Option (right to buy)
A-Award
Farmer Michele
See Remarks
Officer 179 670
Value: $224.6K
Mar 19, 2025
Buy
Common Stock
A-Award
Farmer Michele
See Remarks
Officer 89 835
Value: $112.3K
Mar 03, 2025
Sell
Common Stock
S-Sale
Henry Christian O
See Remarks
Officer 12 497
Value: $17.6K
Mar 03, 2025
Sell
Common Stock
S-Sale
Van Oene Mark
See Remarks
Officer 6 486
Value: $9K
Mar 03, 2025
Sell
Common Stock
S-Sale
Farmer Michele
See Remarks
Officer 2 973
Value: $4K
Mar 03, 2025
Sell
Common Stock
S-Sale
Farmer Michele
See Remarks
Officer 2 973
Value: $4K
Mar 03, 2025
Sell
Common Stock
S-Sale
Van Oene Mark
See Remarks
Officer 6 486
Value: $9K
Mar 03, 2025
Sell
Common Stock
S-Sale
Henry Christian O
See Remarks
Officer 12 497
Value: $17.6K

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

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