STOCK TITAN

[Form 4] BioAtla, Inc. Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Jay M. Short, Chief Executive Officer, Director and reported 10% owner of BioAtla, Inc. (BCAB), filed a Form 4 disclosing a non-sale transaction on 08/31/2025. The filing shows 6,347 shares of Common Stock were withheld by the issuer at a price of $0.4555 to satisfy income tax and withholding obligations related to the vesting and net settlement of previously reported restricted stock units. After the withholding, the reporting person directly beneficially owned 2,243,678 shares. The Form 4 also reports indirect holdings: 793,547 shares held by spouse, two trusts with 258,727 shares each, 302,324 shares by Capia IP, LLC, and 50 shares by Himalaya Parent LLC, where the reporting person and spouse are managers. The filing was signed by an attorney-in-fact on 09/02/2025.

Jay M. Short, Amministratore Delegato, Direttore e segnalato come proprietario del 10% di BioAtla, Inc. (BCAB), ha depositato un Modulo 4 che rivela una transazione non di vendita in data 31/08/2025. Dal documento risulta che 6.347 azioni di Azioni Ordinarie sono state trattenute dall’emittente al prezzo di $0,4555 per coprire imposte sul reddito e ritenute legate alla maturazione e al regolamento netto di unità di azioni vincolate precedentemente segnalate. Dopo la ritenuta, la persona segnalante deteneva direttamente in modo beneficiario 2.243.678 azioni. Il Modulo 4 riporta inoltre partecipazioni indirette: 793.547 azioni detenute dal coniuge, due trust con 258.727 azioni ciascuno, 302.324 azioni da Capia IP, LLC e 50 azioni da Himalaya Parent LLC, di cui la persona segnalante e il coniuge sono amministratori. Il documento è stato firmato da un procuratore il 02/09/2025.

Jay M. Short, Director Ejecutivo, Director y reportado como propietario del 10% de BioAtla, Inc. (BCAB), presentó un Formulario 4 que revela una transacción no relacionada con una venta el 31/08/2025. La presentación indica que 6.347 acciones de Acciones Comunes fueron retenidas por el emisor a un precio de $0.4555 para satisfacer impuestos sobre la renta y retenciones vinculadas a la consolidación y liquidación neta de unidades de acciones restringidas previamente informadas. Tras la retención, la persona informante poseía directamente de forma beneficiaria 2.243.678 acciones. El Formulario 4 también informa participaciones indirectas: 793.547 acciones en poder del cónyuge, dos fideicomisos con 258.727 acciones cada uno, 302.324 acciones por Capia IP, LLC y 50 acciones por Himalaya Parent LLC, donde la persona informante y su cónyuge son administradores. La presentación fue firmada por un apoderado el 02/09/2025.

Jay M. Short는 BioAtla, Inc.(BCAB)의 최고경영자(CEO), 이사이자 보고상 10% 주주로서 2025-08-31자 비매매 거래를 공시한 Form 4를 제출했습니다. 해당 제출서류에 따르면 6,347주의 보통주가 발행사에 의해 원천징수되어 $0.4555의 주당 가격으로 이전에 보고된 제한주식단위(RSU)의 베스팅 및 순결제와 관련한 소득세 및 원천징수 의무를 충당했습니다. 원천징수 후 보고인은 직접적으로 2,243,678주를 실질 소유하고 있었습니다. Form 4는 또한 간접 보유를 보고하는데, 배우자가 보유한 793,547주, 각 258,727주의 두 신탁, 302,324주의 Capia IP, LLC, 및 보고인과 배우자가 매니저로 있는 Himalaya Parent LLC의 50주가 포함되어 있습니다. 해당 서류는 2025-09-02에 대리인이 서명했습니다.

Jay M. Short, directeur général, administrateur et déclaré détenteur de 10% de BioAtla, Inc. (BCAB), a déposé un formulaire 4 révélant une transaction non liée à une vente le 31/08/2025. Le dossier indique que 6 347 actions ordinaires ont été retenues par l’émetteur au prix de 0,4555 $ pour couvrir les impôts sur le revenu et les retenues liés à la consolidation et au règlement net d’unités d’actions restreintes précédemment déclarées. Après cette retenue, la personne déclarant détenait directement à titre bénéficiaire 2 243 678 actions. Le formulaire 4 signale également des détentions indirectes : 793 547 actions détenues par le conjoint, deux trusts de 258 727 actions chacun, 302 324 actions par Capia IP, LLC et 50 actions par Himalaya Parent LLC, dont la personne déclarant et son conjoint sont gestionnaires. Le document a été signé par un mandataire le 02/09/2025.

Jay M. Short, Chief Executive Officer, Direktor und als 10%-Eigentümer von BioAtla, Inc. (BCAB) gemeldet, reichte ein Formular 4 ein, das eine nicht-verkaufsbezogene Transaktion am 31.08.2025 offenlegt. Aus der Einreichung geht hervor, dass 6.347 Aktien des Stammkapitals vom Emittenten einbehalten wurden zu einem Preis von $0,4555, um Einkommenssteuer- und Abzugsverpflichtungen im Zusammenhang mit der Ausübung und Nettoregelung zuvor gemeldeter Restricted Stock Units zu erfüllen. Nach dem Einbehalt hielt die meldende Person direkt wirtschaftlich 2.243.678 Aktien. Das Formular 4 berichtet außerdem über indirekte Beteiligungen: 793.547 Aktien im Besitz des Ehepartners, zwei Treuhandfonds mit jeweils 258.727 Aktien, 302.324 Aktien durch Capia IP, LLC und 50 Aktien durch Himalaya Parent LLC, bei der die meldende Person und der Ehepartner als Manager fungieren. Die Einreichung wurde am 02.09.2025 von einem Bevollmächtigten unterschrieben.

Positive
  • Transaction is non-sale and tax-related, indicating restricted stock units were settled rather than an open-market disposal
  • Comprehensive ownership disclosure listing direct and multiple indirect holdings (spouse, trusts, LLCs) with disclaimers
Negative
  • None.

Insights

TL;DR: Routine tax withholding from vested RSUs; ownership structure and disclosure are clear and compliant.

The Form 4 documents a withholding of 6,347 Common Stock shares to satisfy tax obligations tied to RSU vesting, not an open-market sale. Such withholdings are common and indicate equity compensation is being settled. The filing clearly lists both direct and multiple categories of indirect ownership, including spouse holdings and trust/LLC interests, and includes the reporting persons roles as CEO, Director, and 10% owner. The signature by an attorney-in-fact is properly noted. From a governance perspective, this is a routine insider reporting event and meets Section 16 disclosure requirements.

TL;DR: Small withholding reduces direct shares marginally; transaction is non-sale and tax-related.

The reported transaction code and explanation specify that shares were withheld by the issuer for tax withholding upon RSU vesting, confirming this was not a market disposition. The number withheld (6,347) at $0.4555 is small relative to the reported direct beneficial ownership of 2,243,678 shares. The report also maps indirect holdings through spouse, trusts, and affiliated entities, with clear disclaimers about beneficial ownership limits. This filing provides transparent detail relevant for tracking insider equity changes.

Jay M. Short, Amministratore Delegato, Direttore e segnalato come proprietario del 10% di BioAtla, Inc. (BCAB), ha depositato un Modulo 4 che rivela una transazione non di vendita in data 31/08/2025. Dal documento risulta che 6.347 azioni di Azioni Ordinarie sono state trattenute dall’emittente al prezzo di $0,4555 per coprire imposte sul reddito e ritenute legate alla maturazione e al regolamento netto di unità di azioni vincolate precedentemente segnalate. Dopo la ritenuta, la persona segnalante deteneva direttamente in modo beneficiario 2.243.678 azioni. Il Modulo 4 riporta inoltre partecipazioni indirette: 793.547 azioni detenute dal coniuge, due trust con 258.727 azioni ciascuno, 302.324 azioni da Capia IP, LLC e 50 azioni da Himalaya Parent LLC, di cui la persona segnalante e il coniuge sono amministratori. Il documento è stato firmato da un procuratore il 02/09/2025.

Jay M. Short, Director Ejecutivo, Director y reportado como propietario del 10% de BioAtla, Inc. (BCAB), presentó un Formulario 4 que revela una transacción no relacionada con una venta el 31/08/2025. La presentación indica que 6.347 acciones de Acciones Comunes fueron retenidas por el emisor a un precio de $0.4555 para satisfacer impuestos sobre la renta y retenciones vinculadas a la consolidación y liquidación neta de unidades de acciones restringidas previamente informadas. Tras la retención, la persona informante poseía directamente de forma beneficiaria 2.243.678 acciones. El Formulario 4 también informa participaciones indirectas: 793.547 acciones en poder del cónyuge, dos fideicomisos con 258.727 acciones cada uno, 302.324 acciones por Capia IP, LLC y 50 acciones por Himalaya Parent LLC, donde la persona informante y su cónyuge son administradores. La presentación fue firmada por un apoderado el 02/09/2025.

Jay M. Short는 BioAtla, Inc.(BCAB)의 최고경영자(CEO), 이사이자 보고상 10% 주주로서 2025-08-31자 비매매 거래를 공시한 Form 4를 제출했습니다. 해당 제출서류에 따르면 6,347주의 보통주가 발행사에 의해 원천징수되어 $0.4555의 주당 가격으로 이전에 보고된 제한주식단위(RSU)의 베스팅 및 순결제와 관련한 소득세 및 원천징수 의무를 충당했습니다. 원천징수 후 보고인은 직접적으로 2,243,678주를 실질 소유하고 있었습니다. Form 4는 또한 간접 보유를 보고하는데, 배우자가 보유한 793,547주, 각 258,727주의 두 신탁, 302,324주의 Capia IP, LLC, 및 보고인과 배우자가 매니저로 있는 Himalaya Parent LLC의 50주가 포함되어 있습니다. 해당 서류는 2025-09-02에 대리인이 서명했습니다.

Jay M. Short, directeur général, administrateur et déclaré détenteur de 10% de BioAtla, Inc. (BCAB), a déposé un formulaire 4 révélant une transaction non liée à une vente le 31/08/2025. Le dossier indique que 6 347 actions ordinaires ont été retenues par l’émetteur au prix de 0,4555 $ pour couvrir les impôts sur le revenu et les retenues liés à la consolidation et au règlement net d’unités d’actions restreintes précédemment déclarées. Après cette retenue, la personne déclarant détenait directement à titre bénéficiaire 2 243 678 actions. Le formulaire 4 signale également des détentions indirectes : 793 547 actions détenues par le conjoint, deux trusts de 258 727 actions chacun, 302 324 actions par Capia IP, LLC et 50 actions par Himalaya Parent LLC, dont la personne déclarant et son conjoint sont gestionnaires. Le document a été signé par un mandataire le 02/09/2025.

Jay M. Short, Chief Executive Officer, Direktor und als 10%-Eigentümer von BioAtla, Inc. (BCAB) gemeldet, reichte ein Formular 4 ein, das eine nicht-verkaufsbezogene Transaktion am 31.08.2025 offenlegt. Aus der Einreichung geht hervor, dass 6.347 Aktien des Stammkapitals vom Emittenten einbehalten wurden zu einem Preis von $0,4555, um Einkommenssteuer- und Abzugsverpflichtungen im Zusammenhang mit der Ausübung und Nettoregelung zuvor gemeldeter Restricted Stock Units zu erfüllen. Nach dem Einbehalt hielt die meldende Person direkt wirtschaftlich 2.243.678 Aktien. Das Formular 4 berichtet außerdem über indirekte Beteiligungen: 793.547 Aktien im Besitz des Ehepartners, zwei Treuhandfonds mit jeweils 258.727 Aktien, 302.324 Aktien durch Capia IP, LLC und 50 Aktien durch Himalaya Parent LLC, bei der die meldende Person und der Ehepartner als Manager fungieren. Die Einreichung wurde am 02.09.2025 von einem Bevollmächtigten unterschrieben.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
SHORT JAY M PHD

(Last) (First) (Middle)
C/O BIOATLA, INC. 11085 TORREYANA ROAD

(Street)
SAN DIEGO CA 92121

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
BioAtla, Inc. [ BCAB ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director X 10% Owner
X Officer (give title below) Other (specify below)
Chief Executive Officer
3. Date of Earliest Transaction (Month/Day/Year)
08/31/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/31/2025 F(1) 6,347 D $0.4555 2,243,678 D
Common Stock 793,547 I By Spouse
Common Stock 258,727 I By Carolyn Short 2020 Irrevocable Gift Trust
Common Stock 258,727 I By Jay Short 2020 Irrevocable Gift Trust
Common Stock 302,324 I By Capia IP, LLC
Common Stock 50 I By Himalaya Parent LLC(2)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. 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.
2. The Reporting Person and his spouse are the managers of Himalaya Parent LLC and collectively make investment decisions on the behalf of the entity. The Reporting Person and his spouse disclaim beneficial ownership of the reported securities except to the extent of his or her pecuniary interest therein.
/s/ Christian Vasquez, as Attorney-in-Fact for Jay M. Short 09/02/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What transaction did Jay M. Short report on Form 4 for BCAB?

The Form 4 reports that 6,347 shares of Common Stock were withheld by the issuer on 08/31/2025 to satisfy tax and withholding obligations related to vested restricted stock units.

Was the reported transaction a sale of BioAtla (BCAB) shares?

No. The filing explicitly states this was not a sale; shares were withheld by the issuer to cover tax obligations from RSU vesting.

How many shares does Jay M. Short beneficially own after the transaction?

The Form 4 shows 2,243,678 shares beneficially owned directly by the reporting person following the transaction.

What indirect holdings are reported for Jay M. Short on this Form 4?

Indirect holdings include 793,547 shares by spouse, 258,727 shares by the Carolyn Short 2020 Irrevocable Gift Trust, 258,727 shares by the Jay Short 2020 Irrevocable Gift Trust, 302,324 shares by Capia IP, LLC, and 50 shares by Himalaya Parent LLC.

When was the Form 4 signed and by whom?

The form was signed on 09/02/2025 by Christian Vasquez, acting as attorney-in-fact for Jay M. Short.
Bioatla, Inc.

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26.75M
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Biotechnology
Biological Products, (no Disgnostic Substances)
Link
United States
SAN DIEGO