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| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| BCAX | Mazumdar Claire | Chief Executive Officer | Jul 10 '26 | Sale | 28.42 | 10,000 | 284,198 | 362,152 | Jul 14 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Jul 10 '26 | Option Exercise | 3.79 | 10,000 | 37,898 | 372,152 | Jul 14 |
| BCAX | Mazumdar Claire | Chief Executive Officer | May 18 '26 | Option Exercise | 3.79 | 15,000 | 56,847 | 377,152 | May 20 |
| BCAX | Mazumdar Claire | Chief Executive Officer | May 18 '26 | Sale | 20.04 | 15,000 | 300,579 | 362,152 | May 20 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Apr 20 '26 | Option Exercise | 3.79 | 15,000 | 56,847 | 377,152 | Apr 20 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Apr 20 '26 | Sale | 23.61 | 15,000 | 354,146 | 362,152 | Apr 20 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Apr 16 '26 | Option Exercise | 4.54 | 22,760 | 103,359 | 362,152 | Apr 20 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 20 '26 | Sale | 18.95 | 1,596 | 30,246 | 339,392 | Mar 20 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 20 '26 | Option Exercise | 3.79 | 1,596 | 6,049 | 340,988 | Mar 20 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 19 '26 | Sale | 18.78 | 6,905 | 129,705 | 339,392 | Mar 20 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 19 '26 | Option Exercise | 3.79 | 6,905 | 26,169 | 346,297 | Mar 20 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 18 '26 | Option Exercise | 3.79 | 6,499 | 24,630 | 345,891 | Mar 20 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 18 '26 | Sale | 18.84 | 6,499 | 122,415 | 339,392 | Mar 20 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 06 '26 | Sale | 18.75 | 3,817 | 71,572 | 339,392 | Mar 06 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 06 '26 | Option Exercise | 3.79 | 3,817 | 14,466 | 343,209 | Mar 06 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 05 '26 | Option Exercise | 3.79 | 1,786 | 6,769 | 341,178 | Mar 06 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 05 '26 | Sale | 18.74 | 1,786 | 33,464 | 339,392 | Mar 06 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 04 '26 | Sale | 18.73 | 2,631 | 49,289 | 339,392 | Mar 06 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Mar 04 '26 | Option Exercise | 3.79 | 2,631 | 9,971 | 342,023 | Mar 06 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Dec 16 '25 | Option Exercise | 5.45 | 29,500 | 160,884 | 339,392 | Dec 18 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Nov 24 '25 | Option Exercise | 3.79 | 41,163 | 156,000 | 351,055 | Nov 25 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Nov 24 '25 | Sale | 18.86 | 41,163 | 776,429 | 309,892 | Nov 25 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Oct 15 '25 | Option Exercise | 3.79 | 13,289 | 50,363 | 323,181 | Oct 15 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Oct 15 '25 | Sale | 18.84 | 13,289 | 250,391 | 309,892 | Oct 15 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Oct 13 '25 | Sale | 18.92 | 11,445 | 216,545 | 309,892 | Oct 15 |
| BCAX | Mazumdar Claire | Chief Executive Officer | Oct 13 '25 | Option Exercise | 3.79 | 11,445 | 43,374 | 321,337 | Oct 15 |