BioAtla, Inc. (BCAB) Insider Trading
Directors, officers and holders of more than 10% of BCAB report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 44 most recent of 44 transactions on file: 0 with code P, 0 with code S and 44 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 31, 2026 | Sievers Eric | Chief Medical Officer | F Tax Payment | 134 | $1.69 | $226 |
| Aug 31, 2026 | SHORT JAY M PHD | Chief Executive Officer | F Tax Payment | 259 | $1.69 | $438 |
| Aug 31, 2026 | Vasquez Christian | Chief Financial Officer | F Tax Payment | 71 | $1.69 | $120 |
| May 31, 2026 | Sievers Eric | Chief Medical Officer | F Tax Payment | 134 | $3.93 | $527 |
| May 31, 2026 | SHORT JAY M PHD | Chief Executive Officer | F Tax Payment | 259 | $3.93 | $1,018 |
| May 31, 2026 | Vasquez Christian | Chief Financial Officer | F Tax Payment | 82 | $3.93 | $322 |
| Mar 12, 2026 | SHORT JAY M PHD | Chief Executive Officer | F Tax Payment | 13 | $8.40 | $107 |
| Mar 11, 2026 | Sievers Eric | Chief Medical Officer | F Tax Payment | 7 | $8.45 | $61 |
| Mar 11, 2026 | Vasquez Christian | Chief Financial Officer | F Tax Payment | 4 | $8.45 | $30 |
| Mar 11, 2026 | SHORT JAY M PHD | Chief Executive Officer | A Award | 8,600 | Not measured | Not measured |
| Mar 10, 2026 | Vasquez Christian | Chief Financial Officer | A Award | 4,800 | Not measured | Not measured |
| Mar 10, 2026 | Sievers Eric | Chief Medical Officer | A Award | 4,800 | Not measured | Not measured |
| Feb 28, 2026 | WALDRON RICHARD A | Former Chief Financial Officer | F Tax Payment | 55 | $12.35 | $674 |
| Feb 28, 2026 | SHORT JAY M PHD | Chief Executive Officer | F Tax Payment | 155 | $12.35 | $1,909 |
| Feb 28, 2026 | Vasquez Christian | Chief Financial Officer | F Tax Payment | 36 | $12.35 | $445 |
| Feb 28, 2026 | Sievers Eric | Chief Medical Officer | F Tax Payment | 63 | $12.35 | $776 |
| Nov 30, 2025 | Sievers Eric | Chief Medical Officer | F Tax Payment | 55 | $45.20 | $2,467 |
| Nov 30, 2025 | Vasquez Christian | Chief Financial Officer | F Tax Payment | 31 | $45.20 | $1,416 |
| Nov 30, 2025 | SHORT JAY M PHD | Chief Executive Officer | F Tax Payment | 127 | $45.20 | $5,738 |
| Nov 30, 2025 | WALDRON RICHARD A | Former Chief Financial Officer | F Tax Payment | 47 | $45.20 | $2,143 |
| Aug 31, 2025 | Vasquez Christian | Chief Financial Officer | F Tax Payment | 31 | $22.77 | $713 |
| Aug 31, 2025 | SHORT JAY M PHD | Chief Executive Officer | F Tax Payment | 127 | $22.77 | $2,891 |
| Aug 31, 2025 | Sievers Eric | Chief Medical Officer | F Tax Payment | 55 | $22.77 | $1,243 |
| Aug 31, 2025 | WALDRON RICHARD A | Former Chief Financial Officer | F Tax Payment | 47 | $22.77 | $1,080 |
| Jun 18, 2025 | GRAY MARY ANN | Director | A Award | 470 | Not measured | Not measured |
| Jun 18, 2025 | Williams Eddie | Director | A Award | 470 | Not measured | Not measured |
| Jun 18, 2025 | Smith Scott Andrew | Director | A Award | 470 | Not measured | Not measured |
| Jun 18, 2025 | MCBRINN SYLVIA | Director | A Award | 470 | Not measured | Not measured |
| Jun 18, 2025 | STEINMAN LAWRENCE | Director | A Award | 470 | Not measured | Not measured |
| Jun 18, 2025 | Moran Susan | Director | A Award | 470 | Not measured | Not measured |
| May 31, 2025 | SHORT JAY M PHD | Chief Executive Officer | F Tax Payment | 127 | $20.45 | $2,596 |
| May 31, 2025 | WALDRON RICHARD A | Former Chief Financial Officer | F Tax Payment | 47 | $20.45 | $970 |
| May 31, 2025 | Vasquez Christian | Chief Financial Officer | F Tax Payment | 31 | $20.45 | $640 |
| May 31, 2025 | Sievers Eric | Chief Medical Officer | F Tax Payment | 55 | $20.45 | $1,116 |
| Mar 12, 2025 | SHORT JAY M PHD | Chief Executive Officer | A Award | 8,620 | Not measured | Not measured |
| Mar 11, 2025 | Sievers Eric | Chief Medical Officer | A Award | 3,500 | Not measured | Not measured |
| Mar 11, 2025 | Vasquez Christian | Chief Financial Officer | A Award | 1,700 | Not measured | Not measured |
| Mar 11, 2025 | WALDRON RICHARD A | Former Chief Financial Officer | A Award | 2,000 | Not measured | Not measured |
| Feb 16, 2025 | SHORT JAY M PHD | Chief Executive Officer | F Tax Payment | 618 | $23.00 | $14,219 |
| Feb 15, 2025 | Sievers Eric | Chief Medical Officer | F Tax Payment | 251 | $23.00 | $5,764 |
| Feb 15, 2025 | Vasquez Christian | Chief Financial Officer | F Tax Payment | 144 | $23.00 | $3,307 |
| Feb 15, 2025 | WALDRON RICHARD A | Former Chief Financial Officer | F Tax Payment | 218 | $23.00 | $5,008 |
| Aug 31, 2024 | Smith Scott Andrew | Director | F Tax Payment | 44 | $88.50 | $3,860 |
| Aug 31, 2024 | Sievers Eric | Chief Medical Officer | F Tax Payment | 11 | $88.50 | $1,012 |
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.