Richard A. Waldron

CIK: 0001226961

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)1 (16.7%)

Compensation grants

Other (G, F, J, C, D, …)5 (83.3%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

BCAB

BioAtla, Inc.

Officer

Discretionary Trading P&L

Holdings

Transaction History (6 total)

BCAB
BioAtla, Inc.
Feb 28, 2026
Tax Payment(F)
Direct
2.7K shares at avg. $0.25$674.063
BCAB
BioAtla, Inc.
Nov 30, 2025
Tax Payment(F)
Direct
2.4K shares at avg. $0.90$2K
BCAB
BioAtla, Inc.
Aug 31, 2025
Tax Payment(F)
Direct
2.4K shares at avg. $0.46$1K
BCAB
BioAtla, Inc.
May 31, 2025
Tax Payment(F)
Direct
2.4K shares at avg. $0.41$969.739
BCAB
BioAtla, Inc.
Mar 11, 2025
Award(A)
Direct
100K shares-
BCAB
BioAtla, Inc.
Feb 15, 2025
Tax Payment(F)
Direct
10.9K shares at avg. $0.46$5K

		Type	Shares	Price		Ownership
Feb 28, 2026	BCAB BioAtla, Inc.	Tax Payment(F)	2,729	$0.25	$674	Direct
Nov 30, 2025	BCAB BioAtla, Inc.	Tax Payment(F)	2,371	$0.90	$2,143	Direct
Aug 31, 2025	BCAB BioAtla, Inc.	Tax Payment(F)	2,371	$0.46	$1,080	Direct
May 31, 2025	BCAB BioAtla, Inc.	Tax Payment(F)	2,371	$0.41	$970	Direct
Mar 11, 2025	BCAB BioAtla, Inc.	Award(A)	100,000	-	-	Direct
Feb 15, 2025	BCAB BioAtla, Inc.	Tax Payment(F)	10,887	$0.46	$5,008	Direct

1-6 of 6 transactions

About WALDRON RICHARD A

WALDRON RICHARD A (SEC CIK 0001226961) files insider reports with the SEC as Former Chief Financial Officer of BioAtla, Inc. (BCAB).

Signal8 holds 6 ownership filings by WALDRON RICHARD A, all Form 4s, filed between Feb 24, 2025 and Mar 2, 2026. Those filings report 6 transactions, from Feb 15, 2025 to Feb 28, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on WALDRON RICHARD A's filings is in SAN DIEGO, CA.

Recent filings by WALDRON RICHARD A

Feb 28, 2026: Tax withholding of BCAB shares (Form 4, code F).
Nov 30, 2025: Tax withholding of BCAB shares (Form 4, code F).
Aug 31, 2025: Tax withholding of BCAB shares (Form 4, code F).
May 31, 2025: Tax withholding of BCAB shares (Form 4, code F).
Mar 11, 2025: Grant or award of BCAB shares (Form 4, code A).

Other insiders filing for BioAtla, Inc. (BCAB)

Sievers Eric, Chief Medical Officer
SHORT JAY M PHD, Chief Executive Officer
Vasquez Christian, Chief Financial Officer
Moran Susan, Director
Williams Eddie, Director
STEINMAN LAWRENCE, Director

How to read Form 4 transaction codes