PACB
Pacific Biosciences of California
NASDAQ: PACB · HEALTHCARE · MEDICAL DEVICES
$1.59
+8.16% today
Updated 2026-04-30
Market cap
$493.67M
P/E ratio
—
P/S ratio
3.09x
EPS (TTM)
$-1.82
Dividend yield
—
52W range
$1 – $3
Volume
5.8M
Pacific Biosciences of California (PACB) Insider transactions
Net insider activity
Net buying (15,896,685 shares)
Buy transactions
56
Sell transactions
44
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-04-08 | GIBSON, CHRISTOPHER | Director | Buy | 77,842 | — | — |
| 2026-04-08 | GIBSON, CHRISTOPHER | Director | Buy | 57,473 | — | — |
| 2026-04-01 | GIBSON, JAMES R II | See Remarks | Sale | 88,185 | $1.37 | $120813.45 |
| 2026-03-03 | VAN, OENE MARK | See Remarks | Sale | 6,504 | $1.51 | $9847.06 |
| 2026-03-03 | HENRY, CHRISTIAN O | See Remarks | Sale | 12,497 | $1.51 | $18920.46 |
| 2026-03-03 | GIBSON, CHRISTOPHER | Director | Buy | 73,087 | — | — |
| 2026-03-03 | GIBSON, CHRISTOPHER | Director | Buy | 53,913 | — | — |
| 2026-03-03 | FARMER, MICHELE | See Remarks | Sale | 2,979 | $1.51 | $4510.21 |
| 2026-02-27 | VAN, OENE MARK | See Remarks | Buy | 1,000,000 | — | — |
| 2026-02-27 | VAN, OENE MARK | See Remarks | Buy | 500,000 | — | — |
| 2026-02-27 | HENRY, CHRISTIAN O | See Remarks | Buy | 1,841,621 | — | — |
| 2026-02-27 | HENRY, CHRISTIAN O | See Remarks | Buy | 920,810 | — | — |
| 2026-02-27 | GIBSON, JAMES R II | See Remarks | Buy | 667,696 | — | — |
| 2026-02-27 | GIBSON, JAMES R II | See Remarks | Buy | 333,848 | — | — |
| 2026-02-27 | FARMER, MICHELE | See Remarks | Buy | 179,670 | — | — |
| 2026-02-27 | FARMER, MICHELE | See Remarks | Buy | 89,835 | — | — |
| 2026-02-18 | VAN, OENE MARK | See Remarks | Sale | 55,107 | $1.63 | $89769.30 |
| 2026-02-18 | HENRY, CHRISTIAN O | See Remarks | Sale | 140,874 | $1.63 | $229483.75 |
| 2026-02-18 | FARMER, MICHELE | See Remarks | Sale | 14,952 | $1.63 | $24356.81 |
| 2026-02-17 | VAN, OENE MARK | See Remarks | Sale | 129,790 | $1.58 | $204549.04 |
| 2026-02-17 | HENRY, CHRISTIAN O | See Remarks | Sale | 331,793 | $1.58 | $522905.77 |
| 2026-02-17 | FARMER, MICHELE | See Remarks | Sale | 35,215 | $1.58 | $55498.84 |
| 2025-08-18 | VAN, OENE MARK | See Remarks | Sale | 26,836 | $1.31 | $35182.00 |
| 2025-06-04 | VALANTINE, HANNAH | Director | Buy | 65,000 | — | — |
| 2025-06-04 | SMITH, CHRISTOPHER M | Director | Buy | 32,500 | — | — |
| 2025-06-04 | SHAPIRO, LUCY | Director | Buy | 65,000 | — | — |
| 2025-06-04 | ORDONEZ, KATHY | Director | Buy | 65,000 | — | — |
| 2025-06-04 | MOHR, MARSHALL | Director | Buy | 65,000 | — | — |
| 2025-06-04 | MILLIGAN, JOHN F | Director | Buy | 65,000 | — | — |
| 2025-06-04 | LIVINGSTON, RANDALL S | Director | Buy | 65,000 | — | — |
| 2025-06-04 | ERICSON, WILLIAM W. | Director | Buy | 65,000 | — | — |
| 2025-05-19 | FARMER, MICHELE | See Remarks | Sale | 5,195 | $1.00 | $5200.19 |
| 2025-03-31 | GIBSON, JAMES R II | See Remarks | Buy | 2,000,000 | — | — |
| 2025-03-31 | GIBSON, JAMES R II | See Remarks | Buy | 1,000,000 | — | — |
| 2025-03-19 | VAN, OENE MARK | See Remarks | Buy | 898,352 | — | — |
| 2025-03-19 | VAN, OENE MARK | See Remarks | Buy | 449,176 | — | — |
| 2025-03-19 | HENRY, CHRISTIAN O | See Remarks | Buy | 1,841,621 | — | — |
| 2025-03-19 | HENRY, CHRISTIAN O | See Remarks | Buy | 920,810 | — | — |
| 2025-03-19 | FARMER, MICHELE | See Remarks | Buy | 179,670 | — | — |
| 2025-03-19 | FARMER, MICHELE | See Remarks | Buy | 89,835 | — | — |
| 2025-03-03 | VAN, OENE MARK | See Remarks | Sale | 6,486 | $1.41 | $9125.80 |
| 2025-03-03 | HENRY, CHRISTIAN O | See Remarks | Sale | 12,497 | $1.41 | $17583.28 |
| 2025-03-03 | FARMER, MICHELE | See Remarks | Sale | 2,973 | $1.41 | $4183.01 |
| 2025-02-18 | VAN, OENE MARK | See Remarks | Sale | 100,773 | $1.88 | $189251.69 |
| 2025-02-18 | HENRY, CHRISTIAN O | See Remarks | Sale | 259,909 | $1.88 | $488109.10 |
| 2025-02-18 | FARMER, MICHELE | See Remarks | Sale | 24,349 | $1.88 | $45727.42 |
| 2025-01-30 | SMITH, CHRISTOPHER M | Director | Buy | 72,901 | — | — |
| 2025-01-30 | SMITH, CHRISTOPHER M | Director | Buy | 54,099 | — | — |
| 2025-01-10 | VAN, OENE MARK | See Remarks | Sale | 34,405 | $2.03 | $69979.77 |
| 2024-09-30 | KIM, SUSAN G. | See Remarks | Sale | 19,782 | $1.72 | $34064.60 |
| 2024-09-16 | HENRY, CHRISTIAN O | See Remarks | Sale | 98,907 | $1.75 | $172691.62 |
| 2024-08-19 | EIDEL, JEFF | See Remarks | Sale | 26,760 | $1.59 | $42601.92 |
| 2024-08-16 | VAN, OENE MARK | See Remarks | Sale | 38,011 | $1.66 | $63174.28 |
| 2024-06-18 | VALANTINE, HANNAH | Director | Buy | 32,179 | — | — |
| 2024-06-18 | VALANTINE, HANNAH | Director | Buy | 22,821 | — | — |
| 2024-06-18 | SHAPIRO, LUCY | Director | Buy | 32,179 | — | — |
| 2024-06-18 | SHAPIRO, LUCY | Director | Buy | 22,821 | — | — |
| 2024-06-18 | ORDONEZ, KATHY | Director | Buy | 32,179 | — | — |
| 2024-06-18 | ORDONEZ, KATHY | Director | Buy | 22,821 | — | — |
| 2024-06-18 | MOHR, MARSHALL | Director | Buy | 32,179 | — | — |
| 2024-06-18 | MOHR, MARSHALL | Director | Buy | 22,821 | — | — |
| 2024-06-18 | MILLIGAN, JOHN F | Director | Buy | 32,179 | — | — |
| 2024-06-18 | MILLIGAN, JOHN F | Director | Buy | 22,821 | — | — |
| 2024-06-18 | MELINE, DAVID W | Director | Buy | 24,134 | — | — |
| 2024-06-18 | MELINE, DAVID W | Director | Buy | 17,116 | — | — |
| 2024-06-18 | LIVINGSTON, RANDALL S | Director | Buy | 32,179 | — | — |
| 2024-06-18 | LIVINGSTON, RANDALL S | Director | Buy | 22,821 | — | — |
| 2024-06-18 | ERICSON, WILLIAM W. | Director | Buy | 32,179 | — | — |
| 2024-06-18 | ERICSON, WILLIAM W. | Director | Buy | 22,821 | — | — |
| 2024-05-20 | FARMER, MICHELE | See Remarks | Sale | 5,275 | $2.03 | $10708.25 |
| 2024-03-15 | ORDONEZ, KATHY | Director | Sale | 324,515 | — | — |
| 2024-03-15 | ORDONEZ, KATHY | Director | Sale | 37,106 | — | — |
| 2024-03-15 | ORDONEZ, KATHY | Director | Buy | 324,515 | $2.90 | $941093.50 |
| 2024-03-15 | ORDONEZ, KATHY | Director | Buy | 37,106 | $2.63 | $97588.78 |
| 2024-03-06 | MELINE, DAVID W | Director | Buy | 40,000 | $4.40 | $176160.00 |
| 2024-03-04 | VAN, OENE MARK | See Remarks | Sale | 9,186 | $4.87 | $44745.01 |
| 2024-03-04 | KIM, SUSAN G. | See Remarks | Sale | 5,275 | $4.87 | $25694.53 |
| 2024-03-04 | HENRY, CHRISTIAN O | See Remarks | Sale | 14,177 | $4.87 | $69056.17 |
| 2024-03-04 | FARMER, MICHELE | See Remarks | Sale | 2,968 | $4.87 | $14457.13 |
| 2024-03-01 | MOHR, MARSHALL | Director | Sale | 25,000 | — | — |
| 2024-03-01 | MOHR, MARSHALL | Director | Buy | 25,000 | $4.45 | $111250.00 |
| 2024-02-22 | VAN, OENE MARK | See Remarks | Buy | 798,076 | — | — |
| 2024-02-22 | KIM, SUSAN G. | See Remarks | Buy | 432,692 | — | — |
| 2024-02-22 | HENRY, CHRISTIAN O | See Remarks | Buy | 1,605,769 | — | — |
| 2024-02-22 | FARMER, MICHELE | See Remarks | Buy | 115,384 | — | — |
| 2024-02-22 | EIDEL, JEFF | See Remarks | Buy | 461,538 | — | — |
| 2024-02-20 | KIM, SUSAN G. | See Remarks | Sale | 831 | $5.26 | $4371.89 |
| 2024-02-20 | HENRY, CHRISTIAN O | See Remarks | Sale | 1,979 | $5.26 | $10411.52 |
| 2024-02-16 | VAN, OENE MARK | See Remarks | Sale | 33,560 | $5.96 | $199950.48 |
| 2024-02-16 | KIM, SUSAN G. | See Remarks | Sale | 22,496 | $5.96 | $134031.17 |
| 2024-02-16 | HENRY, CHRISTIAN O | See Remarks | Sale | 79,038 | $5.96 | $470908.40 |
| 2024-02-16 | FARMER, MICHELE | See Remarks | Sale | 7,562 | $5.96 | $45054.40 |
| 2024-02-16 | EIDEL, JEFF | See Remarks | Sale | 15,498 | $5.96 | $92337.08 |
| 2024-01-09 | VAN, OENE MARK | See Remarks | Sale | 31,012 | $7.77 | $241056.28 |
| 2023-12-14 | HENRY, CHRISTIAN O | See Remarks | Sale | 20,000 | $10.00 | $200000.00 |
| 2023-10-13 | MELINE, DAVID W | Director | Buy | 86,954 | — | — |
| 2023-09-29 | KIM, SUSAN G. | See Remarks | Sale | 19,257 | $8.44 | $162471.31 |
| 2023-09-18 | HENRY, CHRISTIAN O | See Remarks | Sale | 96,844 | $10.12 | $980254.97 |
| 2023-09-11 | HENRY, CHRISTIAN O | See Remarks | Sale | 10,000 | $10.45 | $104520.00 |
| 2023-08-17 | HENRY, CHRISTIAN O | See Remarks | Sale | 10,000 | $10.50 | $105000.00 |