BioAtla, Inc. (BCAB)

Latest Insider Confidence Score

2026Q1

50.1
Bullish

Company insider confidence (by quarter)

2020Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Short Jay M Phd CEO 1,613,375 Dec 1, 2025
Chen Bihua Director 1,492,060 Dec 22, 2020
Cormorant Asset Management, LP Other 1,492,060 Dec 22, 2020
Cormorant Global Healthcare Master Fund, LP 10% Owner 1,492,060 Dec 22, 2020
Cormorant Private Healthcare Fund II, LP 10% Owner 1,492,060 Dec 22, 2020

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 28, 2026 Mar 2, 2026 SHORT JAY M PHD CEO Sell 52.5 -7,728 -0.20% $1.9K
Feb 28, 2026 Mar 2, 2026 Vasquez Christian CFO Sell 50.0 -1,802 -0.62% $445.1
Feb 28, 2026 Mar 2, 2026 WALDRON RICHARD A CFO Sell 50.0 -2,729 -0.79% $674.1
Feb 28, 2026 Mar 2, 2026 Sievers Eric Chief Medical Officer Sell 50.0 -3,140 -0.87% $775.6
Nov 30, 2025 Dec 1, 2025 WALDRON RICHARD A CFO Sell 50.0 -2,371 -0.68% $2.1K
Nov 30, 2025 Dec 1, 2025 Sievers Eric Chief Medical Officer Sell 50.0 -2,729 -0.75% $2.5K
Nov 30, 2025 Dec 1, 2025 SHORT JAY M PHD CEO Sell 52.5 -6,347 -0.16% $5.7K
Nov 30, 2025 Dec 1, 2025 Vasquez Christian Officer Sell 50.0 -1,566 -0.53% $1.4K
Aug 31, 2025 Sep 2, 2025 SHORT JAY M PHD CEO Sell 52.5 -6,347 -0.16% $2.9K
Aug 31, 2025 Sep 2, 2025 Vasquez Christian Officer Sell 50.0 -1,566 -0.55% $713.3
Aug 31, 2025 Sep 2, 2025 Sievers Eric Chief Medical Officer Sell 50.0 -2,729 -0.74% $1.2K
Aug 31, 2025 Sep 2, 2025 WALDRON RICHARD A CFO Sell 50.0 -2,371 -0.70% $1.1K
Jun 18, 2025 Jun 18, 2025 Moran Susan Director Neutral 90.0 +23,500 81.58% -
Jun 18, 2025 Jun 18, 2025 Williams Eddie Director Neutral 90.0 +23,500 64.03% -
Jun 18, 2025 Jun 18, 2025 STEINMAN LAWRENCE Director Neutral 90.0 +23,500 42.76% -
Jun 18, 2025 Jun 18, 2025 GRAY MARY ANN Director Neutral 90.0 +23,500 43.60% -
Jun 18, 2025 Jun 18, 2025 MCBRINN SYLVIA Director Neutral 90.0 +23,500 65.96% -
Jun 18, 2025 Jun 18, 2025 Smith Scott Andrew Director Neutral 85.0 +23,500 7.88% -
May 31, 2025 Jun 3, 2025 SHORT JAY M PHD CEO Sell 52.5 -6,347 -0.16% $2.6K
May 31, 2025 Jun 3, 2025 Sievers Eric Chief Medical Officer Sell 50.0 -2,729 -0.74% $1.1K
May 31, 2025 Jun 3, 2025 WALDRON RICHARD A CFO Sell 50.0 -2,371 -0.69% $969.7
May 31, 2025 Jun 3, 2025 Vasquez Christian Officer Sell 50.0 -1,566 -0.55% $640.5
Mar 11, 2025 Mar 13, 2025 Vasquez Christian Officer Neutral 90.0 +85,000 44.34% -
Mar 12, 2025 Mar 13, 2025 SHORT JAY M PHD CEO Neutral 90.0 +431,000 12.53% -
Mar 11, 2025 Mar 13, 2025 WALDRON RICHARD A CFO Neutral 90.0 +100,000 42.87% -
Mar 11, 2025 Mar 13, 2025 Sievers Eric Chief Medical Officer Neutral 90.0 +175,000 89.73% -
Feb 16, 2025 Feb 24, 2025 SHORT JAY M PHD CEO Sell 48.8 -30,911 -0.89% $14.2K
Feb 15, 2025 Feb 24, 2025 Sievers Eric Chief Medical Officer Sell 47.5 -12,530 -6.04% $5.8K
Feb 15, 2025 Feb 24, 2025 WALDRON RICHARD A CFO Sell 47.5 -10,887 -4.46% $5K
Feb 15, 2025 Feb 24, 2025 Vasquez Christian Officer Sell 47.5 -7,189 -3.61% $3.3K
Aug 31, 2024 Sep 3, 2024 Smith Scott Andrew Director Sell 50.0 -2,181 -0.73% $3.9K
Aug 31, 2024 Sep 3, 2024 Sievers Eric Chief Medical Officer Sell 52.5 -572 -0.27% $1K
Jul 31, 2024 Aug 1, 2024 Smith Scott Andrew Director Sell 50.0 -2,181 -0.72% $3.9K
Jul 31, 2024 Aug 1, 2024 Sievers Eric Chief Medical Officer Sell 52.5 -572 -0.27% $1K
Jun 30, 2024 Jul 1, 2024 Smith Scott Andrew Director Sell 50.0 -2,181 -0.72% $3K
Jun 30, 2024 Jul 1, 2024 Sievers Eric Chief Medical Officer Sell 52.5 -572 -0.27% $783.6
Jun 13, 2024 Jun 14, 2024 GRAY MARY ANN Director Neutral 90.0 +16,500 44.12% -
Jun 13, 2024 Jun 14, 2024 MCBRINN SYLVIA Director Neutral 90.0 +16,500 86.27% -
Jun 13, 2024 Jun 14, 2024 Smith Scott Andrew Director Neutral 85.0 +16,500 5.73% -
Jun 13, 2024 Jun 14, 2024 STEINMAN LAWRENCE Director Neutral 90.0 +16,500 42.90% -
Jun 13, 2024 Jun 14, 2024 Williams Eddie Director Neutral 90.0 +16,500 81.68% -
Jun 13, 2024 Jun 14, 2024 Moran Susan Director Neutral 90.0 +16,500 134.07% -
May 31, 2024 May 31, 2024 Smith Scott Andrew Director Sell 50.0 -2,181 -0.75% $3.3K
May 31, 2024 May 31, 2024 Sievers Eric Chief Medical Officer Sell 52.5 -572 -0.27% $863.7
Apr 30, 2024 May 1, 2024 Sievers Eric Chief Medical Officer Sell 52.5 -572 -0.27% $1.3K
Apr 30, 2024 May 1, 2024 Smith Scott Andrew Director Sell 50.0 -2,181 -0.75% $4.9K
Mar 31, 2024 Apr 1, 2024 Smith Scott Andrew Director Sell 50.0 -2,181 -0.74% $7.5K
Mar 31, 2024 Apr 1, 2024 Sievers Eric Chief Medical Officer Sell 52.5 -572 -0.27% $2K
Feb 29, 2024 Mar 1, 2024 Smith Scott Andrew Director Sell 50.0 -2,181 -0.73% $5.9K
Feb 29, 2024 Mar 1, 2024 Sievers Eric Chief Medical Officer Sell 52.5 -572 -0.27% $1.5K
Feb 15, 2024 Feb 20, 2024 WALDRON RICHARD A CFO Neutral 90.0 +106,000 84.85% -
Feb 15, 2024 Feb 20, 2024 Vasquez Christian Officer Neutral 90.0 +70,000 60.52% -
Feb 15, 2024 Feb 20, 2024 Sievers Eric Chief Medical Officer Neutral 90.0 +122,000 136.21% -
Feb 16, 2024 Feb 20, 2024 SHORT JAY M PHD CEO Neutral 90.0 +417,000 13.66% -
Jan 31, 2024 Feb 1, 2024 Smith Scott Andrew Director Sell 50.0 -2,181 -0.73% $4.2K
Jan 31, 2024 Feb 1, 2024 Sievers Eric Chief Medical Officer Sell 50.0 -657 -0.73% $1.3K
Mar 28, 2023 Jan 19, 2024 MCBRINN SYLVIA Director Buy 90.0 +4,000 26.45% $9.4K
Dec 31, 2023 Jan 3, 2024 Williams Eddie Director Neutral 90.0 +4,827 31.40% -
Dec 31, 2023 Jan 3, 2024 GRAY MARY ANN Director Neutral 90.0 +5,995 19.09% -
Dec 31, 2023 Jan 3, 2024 Smith Scott Andrew Director Sell 50.0 -1,791 -0.60% $4.4K
Dec 31, 2023 Jan 3, 2024 Sievers Eric Chief Medical Officer Sell 50.0 -555 -0.61% $1.4K
Dec 26, 2023 Dec 26, 2023 MCBRINN SYLVIA Director Buy 90.0 +4,000 35.96% $9.3K
Dec 20, 2023 Dec 20, 2023 SHORT JAY M PHD CEO Buy 82.5 +50,000 1.67% $106.9K
Dec 19, 2023 Dec 19, 2023 STEINMAN LAWRENCE Director Buy 91.3 +20,000 108.35% $41K
Dec 19, 2023 Dec 19, 2023 Vasquez Christian Officer Buy 86.3 +7,495 6.93% $15.3K
Nov 30, 2023 Dec 1, 2023 Smith Scott Andrew Director Sell 50.0 -1,791 -0.59% $3.2K
Nov 30, 2023 Dec 1, 2023 Sievers Eric Chief Medical Officer Sell 50.0 -554 -0.61% $980.6
Oct 31, 2023 Nov 2, 2023 SHORT JAY M PHD CEO Sell 52.5 -2,888 -0.10% $4.2K
Oct 31, 2023 Nov 2, 2023 WALDRON RICHARD A CFO Sell 50.0 -970 -0.77% $1.4K
Oct 31, 2023 Nov 1, 2023 Sievers Eric Chief Medical Officer Sell 50.0 -555 -0.60% $815.9
Oct 31, 2023 Nov 1, 2023 Smith Scott Andrew Director Sell 50.0 -1,791 -0.59% $2.6K
Oct 31, 2023 Nov 1, 2023 Vasquez Christian Officer Sell 52.5 -194 -0.19% $285.2
Sep 30, 2023 Oct 3, 2023 Williams Eddie Director Neutral 90.0 +6,985 83.27% -
Sep 30, 2023 Oct 3, 2023 GRAY MARY ANN Director Neutral 90.0 +8,676 38.18% -
Sep 30, 2023 Oct 2, 2023 SHORT JAY M PHD CEO Sell 52.5 -2,888 -0.10% $4.9K
Sep 30, 2023 Oct 2, 2023 WALDRON RICHARD A CFO Sell 50.0 -970 -0.76% $1.6K
Sep 30, 2023 Oct 2, 2023 Vasquez Christian Officer Sell 52.5 -194 -0.19% $329.8
Sep 30, 2023 Oct 2, 2023 Smith Scott Andrew Director Sell 50.0 -1,791 -0.58% $3K
Sep 30, 2023 Oct 2, 2023 Sievers Eric Chief Medical Officer Sell 50.0 -554 -0.60% $941.8
Sep 8, 2023 Sep 13, 2023 MCBRINN SYLVIA Director Buy 90.0 +2,000 21.92% $5.1K
Aug 31, 2023 Sep 1, 2023 WALDRON RICHARD A CFO Sell 50.0 -970 -0.76% $2.4K
Aug 31, 2023 Sep 1, 2023 Vasquez Christian Officer Sell 52.5 -194 -0.19% $486.9
Aug 31, 2023 Sep 1, 2023 Smith Scott Andrew Director Sell 50.0 -1,791 -0.58% $4.5K
Aug 31, 2023 Sep 1, 2023 Sievers Eric Chief Medical Officer Sell 50.0 -555 -0.60% $1.4K
Aug 31, 2023 Sep 1, 2023 SHORT JAY M PHD CEO Sell 52.5 -2,888 -0.10% $7.2K
Jul 31, 2023 Aug 1, 2023 SHORT JAY M PHD CEO Sell 52.5 -2,888 -0.10% $8.6K
Jul 31, 2023 Aug 1, 2023 WALDRON RICHARD A CFO Sell 50.0 -970 -0.75% $2.9K
Jul 31, 2023 Aug 1, 2023 Sievers Eric Chief Medical Officer Sell 50.0 -554 -0.59% $1.7K
Jul 31, 2023 Aug 1, 2023 Smith Scott Andrew Director Sell 50.0 -1,791 -0.58% $5.4K
Jul 31, 2023 Aug 1, 2023 Vasquez Christian Officer Sell 52.5 -194 -0.19% $580.1
Jun 30, 2023 Jul 5, 2023 GRAY MARY ANN Director Neutral 90.0 +4,916 27.60% -
Jun 30, 2023 Jul 5, 2023 Williams Eddie Director Neutral 90.0 +3,958 89.35% -
Jun 30, 2023 Jul 3, 2023 SHORT JAY M PHD CEO Sell 52.5 -2,888 -0.10% $8.7K
Jun 30, 2023 Jul 3, 2023 Vasquez Christian Officer Sell 52.5 -194 -0.19% $582
Jun 30, 2023 Jul 3, 2023 Smith Scott Andrew Director Sell 50.0 -1,791 -0.57% $5.4K
Jun 30, 2023 Jul 3, 2023 Sievers Eric Chief Medical Officer Sell 50.0 -555 -0.61% $1.7K
Jun 30, 2023 Jul 3, 2023 WALDRON RICHARD A CFO Sell 50.0 -970 -0.77% $2.9K
Jun 14, 2023 Jun 15, 2023 Smith Scott Andrew Director Neutral 52.5 - 0.00% -
Jun 14, 2023 Jun 15, 2023 Williams Eddie Director Neutral 52.5 - 0.00% -
Jun 14, 2023 Jun 15, 2023 Moran Susan Director Neutral 52.5 - 0.00% -