BioAtla, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Smith Scott Andrew | — | Tax Withholding | 2,181 | $1.92 | $4,188 | 296,817 | Jan 31, 2024 |
| Sievers Eric | Chief Medical Officer | Tax Withholding | 657 | $1.92 | $1,261 | 89,566 | Jan 31, 2024 |
| Williams Eddie | — | Award / Grant | 4,827 | — | — | 20,200 | Dec 31, 2023 |
| GRAY MARY ANN | — | Award / Grant | 5,995 | — | — | 37,397 | Dec 31, 2023 |
| Smith Scott Andrew | — | Tax Withholding | 1,791 | $2.46 | $4,406 | 298,998 | Dec 31, 2023 |
| Sievers Eric | Chief Medical Officer | Tax Withholding | 555 | $2.46 | $1,365 | 90,223 | Dec 31, 2023 |
| MCBRINN SYLVIA | — | Purchase | 4,000 | $2.33 | $9,320 | 15,125 | Dec 26, 2023 |
| SHORT JAY M PHD | Chief Executive Officer | Purchase | 50,000 | $2.14 | $107,000 | 1,439,283 | Dec 20, 2023 |
| STEINMAN LAWRENCE | — | Purchase | 20,000 | $2.05 | $41,000 | 38,459 | Dec 19, 2023 |
| Vasquez Christian | See Remarks | Purchase | 7,495 | $2.04 | $15,290 | 115,659 | Dec 19, 2023 |
| Smith Scott Andrew | — | Tax Withholding | 1,791 | $1.77 | $3,170 | 300,789 | Nov 30, 2023 |
| Sievers Eric | Chief Medical Officer | Tax Withholding | 554 | $1.77 | $981 | 90,778 | Nov 30, 2023 |
| SHORT JAY M PHD | Chief Executive Officer | Tax Withholding | 2,888 | $1.47 | $4,245 | 1,389,283 | Oct 31, 2023 |
| WALDRON RICHARD A | Chief Financial Officer | Tax Withholding | 970 | $1.47 | $1,426 | 124,923 | Oct 31, 2023 |
| Sievers Eric | Chief Medical Officer | Tax Withholding | 555 | $1.47 | $816 | 91,332 | Oct 31, 2023 |
| Smith Scott Andrew | — | Tax Withholding | 1,791 | $1.47 | $2,633 | 302,580 | Oct 31, 2023 |
| Vasquez Christian | See Remarks | Tax Withholding | 194 | $1.47 | $285 | 101,162 | Oct 31, 2023 |
| Williams Eddie | — | Award / Grant | 6,985 | — | — | 15,373 | Sep 30, 2023 |
| GRAY MARY ANN | — | Award / Grant | 8,676 | — | — | 31,402 | Sep 30, 2023 |
| SHORT JAY M PHD | Chief Executive Officer | Tax Withholding | 2,888 | $1.70 | $4,910 | 1,392,171 | Sep 30, 2023 |
| WALDRON RICHARD A | Chief Financial Officer | Tax Withholding | 970 | $1.70 | $1,649 | 125,893 | Sep 30, 2023 |
| Vasquez Christian | See Remarks | Tax Withholding | 194 | $1.70 | $330 | 101,356 | Sep 30, 2023 |
| Smith Scott Andrew | — | Tax Withholding | 1,791 | $1.70 | $3,045 | 304,371 | Sep 30, 2023 |
| Sievers Eric | Chief Medical Officer | Tax Withholding | 554 | $1.70 | $942 | 91,887 | Sep 30, 2023 |
| MCBRINN SYLVIA | — | Purchase | 2,000 | $2.54 | $5,080 | 11,125 | Sep 8, 2023 |
| WALDRON RICHARD A | Chief Financial Officer | Tax Withholding | 970 | $2.51 | $2,435 | 126,863 | Aug 31, 2023 |
| Vasquez Christian | See Remarks | Tax Withholding | 194 | $2.51 | $487 | 101,550 | Aug 31, 2023 |
| Smith Scott Andrew | — | Tax Withholding | 1,791 | $2.51 | $4,495 | 306,162 | Aug 31, 2023 |
| Sievers Eric | Chief Medical Officer | Tax Withholding | 555 | $2.51 | $1,393 | 92,441 | Aug 31, 2023 |
| SHORT JAY M PHD | Chief Executive Officer | Tax Withholding | 2,888 | $2.51 | $7,249 | 1,395,059 | Aug 31, 2023 |
| SHORT JAY M PHD | Chief Executive Officer | Tax Withholding | 2,888 | $2.99 | $8,635 | 1,397,947 | Jul 31, 2023 |
| WALDRON RICHARD A | Chief Financial Officer | Tax Withholding | 970 | $2.99 | $2,900 | 127,833 | Jul 31, 2023 |
| Sievers Eric | Chief Medical Officer | Tax Withholding | 554 | $2.99 | $1,656 | 92,996 | Jul 31, 2023 |
| Smith Scott Andrew | — | Tax Withholding | 1,791 | $2.99 | $5,355 | 307,953 | Jul 31, 2023 |
| Vasquez Christian | See Remarks | Tax Withholding | 194 | $2.99 | $580 | 101,744 | Jul 31, 2023 |
| GRAY MARY ANN | — | Award / Grant | 4,916 | — | — | 22,726 | Jun 30, 2023 |
| Williams Eddie | — | Award / Grant | 3,958 | — | — | 8,388 | Jun 30, 2023 |
| SHORT JAY M PHD | Chief Executive Officer | Tax Withholding | 2,888 | $3.00 | $8,664 | 1,400,835 | Jun 30, 2023 |
| Vasquez Christian | See Remarks | Tax Withholding | 194 | $3.00 | $582 | 101,938 | Jun 30, 2023 |
| Smith Scott Andrew | — | Tax Withholding | 1,791 | $3.00 | $5,373 | 309,744 | Jun 30, 2023 |
| Sievers Eric | Chief Medical Officer | Tax Withholding | 555 | $3.00 | $1,665 | 90,527 | Jun 30, 2023 |
| WALDRON RICHARD A | Chief Financial Officer | Tax Withholding | 970 | $3.00 | $2,910 | 125,780 | Jun 30, 2023 |
| SHORT JAY M PHD | Chief Executive Officer | Tax Withholding | 2,888 | $3.15 | $9,097 | 1,403,723 | May 31, 2023 |
| WALDRON RICHARD A | Chief Financial Officer | Tax Withholding | 970 | $3.15 | $3,056 | 126,750 | May 31, 2023 |
| Sievers Eric | Chief Medical Officer | Tax Withholding | 554 | $3.15 | $1,745 | 91,082 | May 31, 2023 |
| Smith Scott Andrew | — | Tax Withholding | 1,791 | $3.15 | $5,642 | 311,535 | May 31, 2023 |
| Vasquez Christian | See Remarks | Tax Withholding | 194 | $3.15 | $611 | 102,132 | May 31, 2023 |
| SHORT JAY M PHD | Chief Executive Officer | Tax Withholding | 2,888 | $3.37 | $9,733 | 1,406,611 | Apr 30, 2023 |
| WALDRON RICHARD A | Chief Financial Officer | Tax Withholding | 970 | $3.37 | $3,269 | 127,720 | Apr 30, 2023 |
| Sievers Eric | Chief Medical Officer | Tax Withholding | 555 | $3.37 | $1,870 | 91,636 | Apr 30, 2023 |