| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| BLPH | VP of Engineering & Manuf | Nov 15, 2019 | Option Exercise | $0.34 | 27,134 | 9,226 | 124,619 | Nov 19, 2019, 04:35 PM |
| BLPH | VP of Engineering & Manuf | Jun 12, 2018 | Option Exercise | $2.37 | 7,473 | 17,711 | 69,510 | Jun 14, 2018, 04:35 PM |
| BLPH | VP of Engineering & Manuf | Jan 04, 2018 | Option Exercise | $2.49 | 24,284 | 60,467 | 55,308 | Jan 08, 2018, 04:49 PM |
| BLPH | VP of Device Engineering | Sep 12, 2016 | Option Exercise | $1.38 | 13,333 | 18,400 | 23,181 | Sep 13, 2016, 08:16 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| BLPH | VP of Engineering & Manuf | Nov 15, 2019 | Option Exercise | 9,226 |
| BLPH | VP of Engineering & Manuf | Jun 12, 2018 | Option Exercise | 17,711 |
| BLPH | VP of Engineering & Manuf | Jan 04, 2018 | Option Exercise | 60,467 |
| BLPH | VP of Device Engineering | Sep 12, 2016 | Option Exercise | 18,400 |