TapewireFind a company

person · Reporting owner

WALDRON RICHARD A

Disclosed activity across 1 company

Tapewire entity
63908
SEC CIK
0001226961

Export transaction history ↓

Reported relationships

Latest disclosed role at each company.

No relationships currently tracked through insider filings.

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

No balances currently tracked through insider filings.

Past disclosures · reporting ended (1)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

BioAtla, Inc.

Report date February 28, 2026 · Filed March 02, 2026

Section 16 reporting ended · disclosed 2026-03-02. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect343,421 Reported balance After 2026-02-28 transaction · row 1
1 source row

Row 1 · 2026-02-28 · Tax withholding · Disposed 2,729 · Balance 343,421

F1: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Filing footnotes · ownership attribution and instrument terms

F1: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Transaction history

JSON API
Reset

Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
February 28, 2026 Filed Mar 2, 2026 18:14 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 2,729 $0.25 $674.06
Disclosure

SEC source: 0001193125-26-085968 · ownership.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Former Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 343,421

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
November 30, 2025 Filed Dec 1, 2025 18:37 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 2,371 $0.90 $2,143.38
Disclosure

SEC source: 0001193125-25-304178 · ownership.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 346,150

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

F2 · balance_after: Includes shares purchased under the Issuer's ESPP.

Read SEC document
August 31, 2025 Filed Sep 2, 2025 19:07 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 2,371 $0.46 $1,079.99
Disclosure

SEC source: 0000950170-25-112614 · ownership.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 338,521

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
May 31, 2025 Filed Jun 3, 2025 16:30 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 2,371 $0.41 $969.74
Disclosure

SEC source: 0000950170-25-080991 · ownership.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 340,892

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

F2 · balance_after: Includes shares purchased under the Issuer's ESPP Plan.

Read SEC document
March 11, 2025 Filed Mar 13, 2025 16:12 UTC BioAtla, Inc. BCAB · Entity 879 GrantCommon Stock 100,000 $0.00 $0.00
Disclosure

SEC source: 0000950170-25-038745 · ownership.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 333,263

F1 · shares: Represents shares of Common Stock underlying a time-based restricted stock unit award ("RSU"). The RSU will vest as to 25% of the total number of shares on March 11, 2026, and thereafter, 6.25% of the total number of shares subject to the RSU shall vest on the last day of each May, August, November and February so long as the reporting person remains a service provider.

Read SEC document
February 15, 2025 Filed Feb 24, 2025 20:30 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 10,887 $0.46 $5,008.02
Disclosure

SEC source: 0000950170-25-025967 · ownership.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 233,263

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

F2 · balance_after: Includes shares purchased under the Issuer's ESPP Plan.

Read SEC document
February 15, 2024 Filed Feb 20, 2024 16:22 UTC BioAtla, Inc. BCAB · Entity 879 GrantCommon Stock 106,000 $0.00 $0.00
Disclosure

SEC source: 0001209191-24-003511 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 230,923

F1 · shares: Represents shares of Common Stock underlying a time-based restricted stock unit award ("RSU"). The RSU will vest as to 25% of the total number of shares on February 15, 2025, and the remainder in equal quarterly installments over the three years thereafter, subject to the reporting person's continued service through the applicable vesting date.

Read SEC document
October 31, 2023 Filed Nov 2, 2023 12:26 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $1.47 $1,425.90
Disclosure

SEC source: 0001209191-23-054073 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 124,923

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
September 30, 2023 Filed Oct 2, 2023 18:06 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $1.70 $1,649.00
Disclosure

SEC source: 0001209191-23-051184 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,893

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
August 31, 2023 Filed Sep 1, 2023 20:06 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $2.51 $2,434.70
Disclosure

SEC source: 0001209191-23-048035 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,863

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

F2 · balance_after: Includes shares purchased under the Issuer's ESPP Plan.

Read SEC document
July 31, 2023 Filed Aug 1, 2023 17:44 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $2.99 $2,900.30
Disclosure

SEC source: 0001209191-23-044051 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,833

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

F2 · balance_after: Includes shares purchased under the Issuer's ESPP Plan.

Read SEC document
June 30, 2023 Filed Jul 3, 2023 17:42 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $3.00 $2,910.00
Disclosure

SEC source: 0001209191-23-040662 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 125,780

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
May 31, 2023 Filed Jun 1, 2023 20:25 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $3.15 $3,055.50
Disclosure

SEC source: 0001209191-23-033472 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 126,750

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
April 30, 2023 Filed May 2, 2023 18:03 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $3.37 $3,268.90
Disclosure

SEC source: 0001209191-23-026660 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,720

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
March 31, 2023 Filed Apr 3, 2023 20:03 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $2.68 $2,599.60
Disclosure

SEC source: 0001209191-23-022430 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 128,690

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
February 28, 2023 Filed Mar 1, 2023 18:32 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $2.98 $2,890.60
Disclosure

SEC source: 0001209191-23-014292 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,660

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
February 09, 2023 Filed Mar 1, 2023 18:32 UTC BioAtla, Inc. BCAB · Entity 879 GrantEmployee Stock Option (right to buy) · Derivative 210,000 $0.00 Strike: $3.95 $0.00
Disclosure

SEC source: 0001209191-23-014292 · doc4.xml · derivative · entry 2

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 210,000

Underlying: Common Stock · 210,000 shares

Expires 2033-02-09

F2 · derivative.exercise_date: The option vests over a period of four years, with 25% of the shares underlying the option vesting on the first anniversary of the date of grant, and the remainder vesting in 36 substantially equal monthly installments thereafter, subject to the reporting person's continued service to the company through the applicable vesting dates.

Read SEC document
January 31, 2023 Filed Feb 2, 2023 19:10 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 1,144 $3.79 $4,335.76
Disclosure

SEC source: 0001209191-23-006435 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 130,630

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
December 31, 2022 Filed Jan 3, 2023 17:06 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $8.25 $8,002.50
Disclosure

SEC source: 0001209191-23-000316 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,774

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
November 30, 2022 Filed Dec 1, 2022 21:06 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $11.01 $10,679.70
Disclosure

SEC source: 0001209191-22-059269 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,744

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

F2 · balance_after: Includes shares purchased under the Issuer's ESPP Plan.

Read SEC document
October 31, 2022 Filed Nov 1, 2022 19:57 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $6.89 $6,683.30
Disclosure

SEC source: 0001209191-22-055168 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 123,714

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
September 30, 2022 Filed Oct 4, 2022 19:47 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $7.70 $7,469.00
Disclosure

SEC source: 0001209191-22-052555 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 124,684

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
August 31, 2022 Filed Sep 1, 2022 18:49 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $8.71 $8,448.70
Disclosure

SEC source: 0001209191-22-048364 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 125,654

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
July 31, 2022 Filed Aug 1, 2022 18:28 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $3.40 $3,298.00
Disclosure

SEC source: 0001209191-22-043743 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 126,624

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
June 30, 2022 Filed Jul 1, 2022 17:25 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $2.85 $2,764.50
Disclosure

SEC source: 0001209191-22-040327 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 127,594

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
May 31, 2022 Filed Jun 3, 2022 18:05 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $2.41 $2,337.70
Disclosure

SEC source: 0001209191-22-034303 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 128,564

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
April 30, 2022 Filed May 6, 2022 17:01 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $3.48 $3,375.60
Disclosure

SEC source: 0001209191-22-027637 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 129,534

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
March 31, 2022 Filed Apr 4, 2022 21:15 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $5.00 $4,850.00
Disclosure

SEC source: 0001209191-22-022745 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 130,504

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
February 28, 2022 Filed Mar 4, 2022 17:07 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 970 $6.48 $6,285.60
Disclosure

SEC source: 0001209191-22-016382 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 131,474

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
February 21, 2022 Filed Feb 24, 2022 21:18 UTC BioAtla, Inc. BCAB · Entity 879 GrantEmployee Stock Option (right to buy) · Derivative 115,000 $0.00 Strike: $6.75 $0.00
Disclosure

SEC source: 0001209191-22-012942 · doc4.xml · derivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 115,000

Underlying: Common Stock · 115,000 shares

Expires 2032-02-21

F1 · derivative.exercise_date: The option vests over a period of four years, with 25% of the shares underlying the option vesting on February 21, 2023, the first anniversary of the date of grant, and the remainder vesting in 36 substantially equal monthly installments thereafter, subject to the reporting person's continued employment through the applicable vesting dates.

Read SEC document
January 31, 2022 Filed Feb 2, 2022 17:46 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 1,150 $9.56 $10,994.00
Disclosure

SEC source: 0001209191-22-006504 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 132,444

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

F2 · balance_after: Includes shares purchased under the Issuer's ESPP Plan.

Read SEC document
December 31, 2021 Filed Jan 5, 2022 20:35 UTC BioAtla, Inc. BCAB · Entity 879 Tax withholdingCommon Stock 1,391 $19.63 $27,305.33
Disclosure

SEC source: 0001209191-22-002043 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 133,078

F1 · kind: This transaction is not a sale of shares by the Reporting Person. Instead, this represents shares that have been withheld by the Issuer to satisfy its income tax and withholding and remittance obligations in connection with the vesting and net settlement of previously reported restricted stock units.

Read SEC document
December 02, 2021 Filed Dec 7, 2021 17:44 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 29 $22.47 $651.66
Disclosure

SEC source: 0001209191-21-068388 · doc4.xml · nonDerivative · entry 8

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 134,469

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F9 · price: The range of prices for the shares of Common Stock is from $22.40 to $22.51. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
December 02, 2021 Filed Dec 7, 2021 17:44 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 1,405 $21.74 $30,546.11
Disclosure

SEC source: 0001209191-21-068388 · doc4.xml · nonDerivative · entry 7

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 134,498

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F8 · price: The range of prices for the shares of Common Stock is from $21.40 to $22.37. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
December 01, 2021 Filed Dec 7, 2021 17:44 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 880 $24.22 $21,317.12
Disclosure

SEC source: 0001209191-21-068388 · doc4.xml · nonDerivative · entry 6

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,903

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F7 · price: The range of prices for the shares of Common Stock is from $23.80 to $24.68. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
December 01, 2021 Filed Dec 7, 2021 17:44 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 4,034 $23.27 $93,855.04
Disclosure

SEC source: 0001209191-21-068388 · doc4.xml · nonDerivative · entry 5

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136,783

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F6 · price: The range of prices for the shares of Common Stock is from $22.79 to $23.77. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
December 01, 2021 Filed Dec 7, 2021 17:44 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 2,332 $22.19 $51,737.75
Disclosure

SEC source: 0001209191-21-068388 · doc4.xml · nonDerivative · entry 4

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 140,817

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F5 · price: The range of prices for the shares of Common Stock is from $21.79 to $22.73. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
November 30, 2021 Filed Dec 7, 2021 17:44 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 848 $25.38 $21,521.39
Disclosure

SEC source: 0001209191-21-068388 · doc4.xml · nonDerivative · entry 3

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 143,149

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F4 · price: The range of prices for the shares of Common Stock is from $25.30 to $25.38. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
November 30, 2021 Filed Dec 7, 2021 17:44 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 2,422 $24.68 $59,765.27
Disclosure

SEC source: 0001209191-21-068388 · doc4.xml · nonDerivative · entry 2

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 143,997

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F3 · price: The range of prices for the shares of Common Stock is from $24.33 to $25.25. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
November 30, 2021 Filed Dec 7, 2021 17:44 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 2,240 $24.00 $53,753.28
Disclosure

SEC source: 0001209191-21-068388 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 146,419

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F2 · price: The range of prices for the shares of Common Stock is from $23.33 to $24.32. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
November 29, 2021 Filed Dec 6, 2021 20:44 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 4,599 $23.89 $109,870.11
Disclosure

SEC source: 0001209191-21-068218 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 148,659

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F2 · price: The range of prices for the shares of Common Stock is from $23.75 to $24.11. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
November 24, 2021 Filed Nov 30, 2021 20:07 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 1,124 $25.77 $28,966.60
Disclosure

SEC source: 0001209191-21-067221 · doc4.xml · nonDerivative · entry 6

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 153,258

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F7 · price: The range of prices for the shares of Common Stock is from $25.57 to $26.14. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
November 24, 2021 Filed Nov 30, 2021 20:07 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 1,354 $25.00 $33,848.65
Disclosure

SEC source: 0001209191-21-067221 · doc4.xml · nonDerivative · entry 5

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 154,382

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F6 · price: The range of prices for the shares of Common Stock is from $24.48 to $25.42. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
November 24, 2021 Filed Nov 30, 2021 20:07 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 1,459 $24.05 $35,093.33
Disclosure

SEC source: 0001209191-21-067221 · doc4.xml · nonDerivative · entry 4

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 155,736

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F5 · price: The range of prices for the shares of Common Stock is from $23.48 to $24.32. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
November 23, 2021 Filed Nov 30, 2021 20:07 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 2,101 $26.04 $54,699.54
Disclosure

SEC source: 0001209191-21-067221 · doc4.xml · nonDerivative · entry 3

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 157,195

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F4 · price: The range of prices for the shares of Common Stock is from $24.85 to $25.70. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
November 23, 2021 Filed Nov 30, 2021 20:07 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 3,669 $24.29 $89,101.67
Disclosure

SEC source: 0001209191-21-067221 · doc4.xml · nonDerivative · entry 2

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 159,296

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F3 · price: The range of prices for the shares of Common Stock is from $23.82 to $24.79. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
November 22, 2021 Filed Nov 30, 2021 20:07 UTC BioAtla, Inc. BCAB · Entity 879 SaleCommon Stock 3,626 $26.24 $95,128.11
Disclosure

SEC source: 0001209191-21-067221 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 162,965

F1 · kind: Represents shares of the Issuer's common stock sold by the reporting person to cover taxes due upon the release and settlement of the vested RSUs.

F2 · price: The range of prices for the shares of Common Stock is from $25.83 to $26.75. The reporting person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

Read SEC document
June 14, 2021 Filed Jun 16, 2021 21:29 UTC BioAtla, Inc. BCAB · Entity 879 OtherCommon Stock 31,976 $0.00 $0.00
Disclosure

SEC source: 0001209191-21-041221 · doc4.xml · nonDerivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 166,591

F1 · kind: Distribution of the Issuer's shares of Common Stock by Himalaya Parent LLC, of which the reporting person is a member, for no consideration.

Read SEC document
December 15, 2020 Filed Dec 17, 2020 20:36 UTC BioAtla, Inc. BCAB · Entity 879 GrantEmployee Stock Option (right to buy) · Derivative 30,988 $0.00 Strike: $18.00 $0.00
Disclosure

SEC source: 0000899243-20-034353 · doc4.xml · derivative · entry 1

WALDRON RICHARD A · CIK 0001226961 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,988

Underlying: Common Stock · 30,988 shares

Expires 2030-12-15

F1 · derivative.exercise_date: The option vests over a period of four years, with 25% of the shares underlying the option vesting on December 15, 2021, the first anniversary of the date of grant, and the remainder vesting in 36 substantially equal monthly installments thereafter, subject to the reporting person's continued employment through the applicable vesting dates.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.