PACB — PACIFIC BIOSCIENCES OF CALIFORNIA, INC.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
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Measured signals that fired on PACB
| date | signal | measured base rate |
|---|---|---|
| 2026-07-01 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-04-14 | Bollinger bandwidth breaks out of its own compression structure | -0.63% over 21 days · t = -2.80 · n = 7,196 statistically distinguishable from its control group |
| 2026-04-01 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-03-03 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-03-03 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-03-02 | Short volume far above its own normal short | -0.76% over 21 days · t = -2.79 · n = 5,897 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-08-17 | Van Oene Mark See Remarks | Open-market sale | 26.9K | 1.13 | 30.4K |
| 2026-08-10 | Van Oene Mark See Remarks | Grant or award | 489.1K | 0.00 | 0 |
| 2026-04-08 | Gibson Christopher Director | Grant or award | 57.5K | 0.00 | 0 |
| 2026-04-01 | Gibson James R II See Remarks | Open-market sale | 88.2K | 1.37 | 120.8K |
| 2026-03-03 | HENRY CHRISTIAN O See Remarks | Open-market sale | 12.5K | 1.51 | 18.9K |
| 2026-03-03 | Van Oene Mark See Remarks | Open-market sale | 6.5K | 1.51 | 9.8K |
| 2026-03-03 | Farmer Michele See Remarks | Open-market sale | 3.0K | 1.51 | 4.5K |
| 2026-03-03 | Gibson Christopher Director | Grant or award | 53.9K | 0.00 | 0 |
| 2026-02-27 | Gibson James R II See Remarks | Grant or award | 333.8K | 0.00 | 0 |
| 2026-02-27 | Farmer Michele See Remarks | Grant or award | 89.8K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| ARK Investment Management LLC | 47.9M | 36.3M |
| BlackRock, Inc. | 33.4M | 25.3M |
| SOFTBANK GROUP CORP. | 27.0M | 20.5M |
| VANGUARD CAPITAL MANAGEMENT LLC | 16.9M | 12.8M |
| Sumitomo Mitsui Trust Group, Inc. | 9.3M | 7.0M |
| Amova Asset Management Americas, Inc. | 9.2M | 7.0M |
| GEODE CAPITAL MANAGEMENT, LLC | 9.2M | 7.0M |
| STATE STREET CORP | 8.1M | 6.1M |
| MILLENNIUM MANAGEMENT LLC | 6.5M | 4.9M |
| D. E. Shaw & Co., Inc. | 4.8M | 3.6M |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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