PACB
insider transactionsPACIFIC BIOSCIENCES OF CALIFORNIA, INC. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Net shares · 365d
-1.2M
0 buy · 1.2M sell
Net value · 365d
-$2.7M
$0 in · $2.7M out
Sentiment · 365d
Net selling
0% buying · 100% selling
Open-market trades · 365d
20
0 buy · 1.2M sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +1%
-
Sell·S
Director · 10b5-1
$144.8K
40.0K sh · $3.62
Own -4%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +5%
-
Grant·A
Director
$0
223.5K sh
Own New
-
Grant·A
Director
$0
223.5K sh
Own New
-
Grant·A
Director
$0
223.5K sh
Own New
-
Grant·A
Director
$0
223.5K sh
Own New
-
Grant·A
Director
$0
223.5K sh
Own New
-
Grant·A
Director
$0
74.5K sh
Own New
-
Grant·A
Director
$0
223.5K sh
Own New
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +1%
-
Sell·S
Director · 10b5-1
$123.2K
40.0K sh · $3.08
Own -4%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +5%
-
Other·F
Director
$69.4K
22.8K sh · $3.04
Own -3%
-
Exercise·C
Director · 10b5-1
$0
60.0K sh
Own +1%
-
Other·G
Director · 10b5-1
$0
20.0K sh
Own -2%
-
Sell·S
Director · 10b5-1
$134.8K
40.0K sh · $3.37
Own -4%
-
Exercise·C
Director · 10b5-1
$0
60.0K sh
Own +7%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +1%
-
Sell·S
Director · 10b5-1
$144.4K
40.0K sh · $3.61
Own -4%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +4%
-
Grant·A
Director
$0
77.8K sh
Own New
-
Grant·A
Director
$0
57.5K sh
Own +107%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +1%
-
Sell·S
Director · 10b5-1
$124.0K
40.0K sh · $3.10
Own -4%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +4%
-
Sell·S
Chief Financial Officer
$120.8K
88.2K sh · $1.37
Own -7%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +1%
-
Sell·S
Director · 10b5-1
$130.0K
40.0K sh · $3.25
Own -4%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +4%
-
Exercise·C
Director · 10b5-1
$0
20.0K sh
Own +0%
-
Other·G
Director · 10b5-1
$0
20.0K sh
Own -2%
-
Exercise·C
Director · 10b5-1
$0
20.0K sh
Own +2%
-
Sell·S
Chief Operating Officer
$9.8K
6.5K sh · $1.51
Own -0%
-
Sell·S
President & CEO
$18.9K
12.5K sh · $1.51
Own -0%
-
Sell·S
Chief Accounting Officer
$4.5K
3.0K sh · $1.51
Own -1%
-
Grant·A
Director
$0
73.1K sh
Own New
-
Grant·A
Director
$0
53.9K sh
Own New
-
Grant·A
Chief Operating Officer
$0
1.0M sh
Own New
-
Grant·A
Chief Operating Officer
$0
500.0K sh
Own +29%
-
Grant·A
President & CEO
$0
1.8M sh
Own New
-
Grant·A
President & CEO
$0
920.8K sh
Own +34%
-
Grant·A
Chief Financial Officer
$0
667.7K sh
Own New
-
Grant·A
Chief Financial Officer
$0
333.8K sh
Own +33%
-
Grant·A
Chief Accounting Officer
$0
179.7K sh
Own New
-
Grant·A
Chief Accounting Officer
$0
89.8K sh
Own +41%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +1%
-
Sell·S
Director · 10b5-1
$138.4K
40.0K sh · $3.46
Own -4%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +4%
-
Sell·S
Chief Operating Officer
$89.8K
55.1K sh · $1.63
Own -3%
-
Sell·S
President & CEO
$229.5K
140.9K sh · $1.63
Own -5%
-
Sell·S
Chief Accounting Officer
$24.4K
15.0K sh · $1.63
Own -6%
-
Sell·S
Chief Operating Officer
$204.5K
129.8K sh · $1.58
Own -7%
-
Sell·S
President & CEO
$522.9K
331.8K sh · $1.58
Own -11%
-
Other·F
Director · 10b5-1
$95.2K
27.3K sh · $3.49
Own -3%
-
Sell·S
Chief Accounting Officer
$55.5K
35.2K sh · $1.58
Own -13%
-
Other·F
Director · 10b5-1
$36.9K
10.4K sh · $3.56
Own -1%
-
Grant·A
Director · 10b5-1
$0
30.3K sh
Own +3%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +1%
-
Sell·S
Director · 10b5-1
$164.8K
40.0K sh · $4.12
Own -4%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +4%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +1%
-
Sell·S
Director · 10b5-1
$178.8K
40.0K sh · $4.47
Own -4%
-
Exercise·C
Director · 10b5-1
$0
40.0K sh
Own +4%
-
Exercise·C
Director · 10b5-1
$0
60.0K sh
Own +1%
-
Other·G
Director · 10b5-1
$0
20.0K sh
Own -2%
-
Sell·S
Director · 10b5-1
$170.0K
40.0K sh · $4.25
Own -4%
-
Exercise·C
Director · 10b5-1
$0
60.0K sh
Own +7%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 5, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Jun 5, 2026 | Christopher Gibson 10b5-1 | Sell S | 40.0K | $144.8K |
| Jun 5, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Jun 3, 2026 | Christopher M Smith | Grant A | 223.5K | $0 |
| Jun 3, 2026 | Hannah Valantine | Grant A | 223.5K | $0 |
| Jun 3, 2026 | Kathy Ordonez | Grant A | 223.5K | $0 |
| Jun 3, 2026 | John F Milligan | Grant A | 223.5K | $0 |
| Jun 3, 2026 | Randall S Livingston | Grant A | 223.5K | $0 |
| Jun 3, 2026 | Christopher Gibson | Grant A | 74.5K | $0 |
| Jun 3, 2026 | William W. Ericson | Grant A | 223.5K | $0 |
| May 22, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| May 22, 2026 | Christopher Gibson 10b5-1 | Sell S | 40.0K | $123.2K |
| May 22, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| May 15, 2026 | Christopher Gibson | Other F | 22.8K | $69.4K |
| May 7, 2026 | Christopher Gibson 10b5-1 | Exercise C | 60.0K | $0 |
| May 7, 2026 | Christopher Gibson 10b5-1 | Other G | 20.0K | $0 |
| May 7, 2026 | Christopher Gibson 10b5-1 | Sell S | 40.0K | $134.8K |
| May 7, 2026 | Christopher Gibson 10b5-1 | Exercise C | 60.0K | $0 |
| Apr 22, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Apr 22, 2026 | Christopher Gibson 10b5-1 | Sell S | 40.0K | $144.4K |
| Apr 22, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Apr 8, 2026 | Christopher Gibson | Grant A | 77.8K | $0 |
| Apr 8, 2026 | Christopher Gibson | Grant A | 57.5K | $0 |
| Apr 7, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Apr 7, 2026 | Christopher Gibson 10b5-1 | Sell S | 40.0K | $124.0K |
| Apr 7, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Apr 1, 2026 | James R Gibson II KEY | Sell S | 88.2K | $120.8K |
| Mar 23, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Mar 23, 2026 | Christopher Gibson 10b5-1 | Sell S | 40.0K | $130.0K |
| Mar 23, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Mar 9, 2026 | Christopher Gibson 10b5-1 | Exercise C | 20.0K | $0 |
| Mar 9, 2026 | Christopher Gibson 10b5-1 | Other G | 20.0K | $0 |
| Mar 9, 2026 | Christopher Gibson 10b5-1 | Exercise C | 20.0K | $0 |
| Mar 3, 2026 | Mark Van Oene | Sell S | 6.5K | $9.8K |
| Mar 3, 2026 | Christian O Henry KEY | Sell S | 12.5K | $18.9K |
| Mar 3, 2026 | Michele Farmer | Sell S | 3.0K | $4.5K |
| Mar 3, 2026 | Christopher Gibson | Grant A | 73.1K | $0 |
| Mar 3, 2026 | Christopher Gibson | Grant A | 53.9K | $0 |
| Feb 27, 2026 | Mark Van Oene | Grant A | 1.0M | $0 |
| Feb 27, 2026 | Mark Van Oene | Grant A | 500.0K | $0 |
| Feb 27, 2026 | Christian O Henry KEY | Grant A | 1.8M | $0 |
| Feb 27, 2026 | Christian O Henry KEY | Grant A | 920.8K | $0 |
| Feb 27, 2026 | James R Gibson II KEY | Grant A | 667.7K | $0 |
| Feb 27, 2026 | James R Gibson II KEY | Grant A | 333.8K | $0 |
| Feb 27, 2026 | Michele Farmer | Grant A | 179.7K | $0 |
| Feb 27, 2026 | Michele Farmer | Grant A | 89.8K | $0 |
| Feb 19, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Feb 19, 2026 | Christopher Gibson 10b5-1 | Sell S | 40.0K | $138.4K |
| Feb 19, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Feb 18, 2026 | Mark Van Oene | Sell S | 55.1K | $89.8K |
| Feb 18, 2026 | Christian O Henry KEY | Sell S | 140.9K | $229.5K |
| Feb 18, 2026 | Michele Farmer | Sell S | 15.0K | $24.4K |
| Feb 17, 2026 | Mark Van Oene | Sell S | 129.8K | $204.5K |
| Feb 17, 2026 | Christian O Henry KEY | Sell S | 331.8K | $522.9K |
| Feb 17, 2026 | Christopher Gibson 10b5-1 | Other F | 27.3K | $95.2K |
| Feb 17, 2026 | Michele Farmer | Sell S | 35.2K | $55.5K |
| Feb 6, 2026 | Christopher Gibson 10b5-1 | Other F | 10.4K | $36.9K |
| Feb 6, 2026 | Christopher Gibson 10b5-1 | Grant A | 30.3K | $0 |
| Feb 4, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Feb 4, 2026 | Christopher Gibson 10b5-1 | Sell S | 40.0K | $164.8K |
| Feb 4, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Jan 20, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Jan 20, 2026 | Christopher Gibson 10b5-1 | Sell S | 40.0K | $178.8K |
| Jan 20, 2026 | Christopher Gibson 10b5-1 | Exercise C | 40.0K | $0 |
| Jan 5, 2026 | Christopher Gibson 10b5-1 | Exercise C | 60.0K | $0 |
| Jan 5, 2026 | Christopher Gibson 10b5-1 | Other G | 20.0K | $0 |
| Jan 5, 2026 | Christopher Gibson 10b5-1 | Sell S | 40.0K | $170.0K |
| Jan 5, 2026 | Christopher Gibson 10b5-1 | Exercise C | 60.0K | $0 |
About PACB insider trading
This page tracks insider transactions for PACIFIC BIOSCIENCES OF CALIFORNIA, INC. (PACB) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.