| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| BLPH | Principal Financial Officer | Dec 13, 2017 | Option Exercise | $0.49 | 1,000 | 490 | 19,248 | Dec 13, 2017, 04:36 PM |
| BLPH | Principal Financial Officer | May 17, 2017 | Option Exercise | $1.40 | 10,459 | 14,683 | 18,248 | May 19, 2017, 04:04 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| BLPH | Principal Financial Officer | Dec 13, 2017 | Option Exercise | 490 |
| BLPH | Principal Financial Officer | May 17, 2017 | Option Exercise | 14,683 |