CIK 0001826892 · Non-accelerated filer<br>Smaller reporting company
BioAtla, Inc.
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- BCAB
- Exchange
- OTC
- Industry
- Biological Products, (No Diagnostic Substances)
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 851922320
- Phone
- 858-558-0708
- Business address
- 11085 TORREYANA ROAD, SAN DIEGO, CA, 92121
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 76 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-08-31 | Sievers Eric Chief Medical Officer | Shares withheld for taxes | −134 | $1.69 | $226 | 11,346 |
| 2026-08-31 | SHORT JAY M PHD Chief Executive Officer | Shares withheld for taxes | −259 | $1.69 | $438 | 52,035 |
| 2026-08-31 | Vasquez Christian Chief Financial Officer | Shares withheld for taxes | −71 | $1.69 | $120 | 10,476 |
| 2026-05-31 | SHORT JAY M PHD Chief Executive Officer | Shares withheld for taxes | −259 | $3.93 | $1K | 52,294 |
| 2026-05-31 | Vasquez Christian Chief Financial Officer | Shares withheld for taxes | −82 | $3.93 | $322 | 10,347 |
| 2026-05-31 | Sievers Eric Chief Medical Officer | Shares withheld for taxes | −134 | $3.93 | $527 | 11,840 |
| 2026-03-12 | SHORT JAY M PHD Chief Executive Officer | Shares withheld for taxes | −639 | $0.17 | $107 | 52,553 |
| 2026-03-11 | Vasquez Christian Chief Financial Officer | Shares withheld for taxes | −175 | $0.17 | $30 | 10,429 |
| 2026-03-11 | Sievers Eric Chief Medical Officer | Shares withheld for taxes | −360 | $0.17 | $61 | 11,614 |
| 2026-03-11 | SHORT JAY M PHD Chief Executive Officer | Grant or award | +430,000 | 2,659,603 | ||
| 2026-03-10 | Sievers Eric Chief Medical Officer | Grant or award | +240,000 | 598,705 | ||
| 2026-03-10 | Vasquez Christian Chief Financial Officer | Grant or award | +240,000 | 530,196 | ||
| 2026-02-28 | SHORT JAY M PHD Chief Executive Officer | Shares withheld for taxes | −7,728 | $0.25 | $2K | 2,229,603 |
| 2026-02-28 | Vasquez Christian Chief Financial Officer | Shares withheld for taxes | −1,802 | $0.25 | $445 | 290,196 |
| 2026-02-28 | WALDRON RICHARD A Former Chief Financial Officer | Shares withheld for taxes | −2,729 | $0.25 | $674 | 343,421 |
| 2026-02-28 | Sievers Eric Chief Medical Officer | Shares withheld for taxes | −3,140 | $0.25 | $776 | 358,705 |
| 2025-11-30 | WALDRON RICHARD A Chief Financial Officer | Shares withheld for taxes | −2,371 | $0.90 | $2K | 346,150 |
| 2025-11-30 | Sievers Eric Chief Medical Officer | Shares withheld for taxes | −2,729 | $0.90 | $2K | 361,845 |
| 2025-11-30 | SHORT JAY M PHD Chief Executive Officer | Shares withheld for taxes | −6,347 | $0.90 | $6K | 2,237,331 |
| 2025-11-30 | Vasquez Christian See Remarks | Shares withheld for taxes | −1,566 | $0.90 | $1K | 291,998 |
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