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[8-K] ALT5 Sigma Corp Reports Material Event

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Rhea-AI Filing Summary

ALT5 Sigma Corporation announced a leadership change. On October 16, 2025, the Board suspended Peter Tassiopoulos and removed his duties as Chief Executive Officer, effective immediately and with pay. The company appointed Jonathan Hugh to assume those duties as Acting Chief Executive Officer. Hugh will continue in his current role while carrying these additional responsibilities.

This update reflects a governance action under Item 5.02. The company lists its common stock on The Nasdaq Stock Market under the symbol ALTS. The filing was signed by Acting Chief Executive Officer and Chief Financial Officer Jonathan Hugh.

ALT5 Sigma Corporation ha annunciato un cambio di leadership. Il 16 ottobre 2025, il Consiglio ha sospeso Peter Tassiopoulos e rimosso i suoi compiti di Amministratore Delegato, con effetto immediato e con retribuzione. L'azienda ha nominato Jonathan Hugh per assumere tali compiti come Amministratore Delegato ad interim. Hugh continuerà nel suo ruolo attuale svolgendo anche queste responsabilità aggiuntive.

Questo aggiornamento riflette una azione di governance ai sensi della voce 5.02. L'azienda elenca il proprio titolo azionario comune su The Nasdaq Stock Market con il simbolo ALTS. Il deposito è stato firmato dall'Amministratore Delegato ad interim e Direttore Finanziario Jonathan Hugh.

ALT5 Sigma Corporation anunció un cambio en el liderazgo. El 16 de octubre de 2025, la Junta suspendió a Peter Tassiopoulos y le retiró sus funciones como Director Ejecutivo, con efecto inmediato y con sueldo. La empresa nombró a Jonathan Hugh para asumir esas funciones como Director Ejecutivo Interino. Hugh continuará en su puesto actual mientras asume estas responsabilidades adicionales.

Esta actualización refleja una acción de gobernanza conforme al punto 5.02. La empresa lista su acción ordinaria en The Nasdaq Stock Market bajo el símbolo ALTS. La escritura fue firmada por el Director Ejecutivo Interino y Director Financiero Jonathan Hugh.

ALT5 Sigma Corporation가 리더십 변화를 발표했습니다. 2025년 10월 16일 이사회는 Peter Tassiopoulos를 정직해제하고 CEO 직무를 즉시 해임하며 유급으로 처리했습니다. 회사는 Jonathan Hugh를 임시 CEO로 지명해 그 직무를 맡게 했습니다. Hugh는 현재 직무를 유지하며 이 추가 책임을 수행합니다.

이 업데이트는 항목 5.02에 따른 거버넌스 조치를 반영합니다. 회사는 일반주를 나스닥 주식시장에 ALTS 기호로 상장합니다. 제출서는 Acting Chief Executive Officer 및 Chief Financial Officer Jonathan Hugh가 서명했습니다.

ALT5 Sigma Corporation a annoncé un changement de direction. Le 16 octobre 2025, le conseil a suspendu Peter Tassiopoulos et retiré ses fonctions de Chief Executive Officer, avec effet immédiat et avec salaire. L'entreprise a nommé Jonathan Hugh pour assumer ces fonctions en tant que Chief Executive Officer par intérim. Hugh restera dans son rôle actuel tout en assumant ces responsabilités supplémentaires.

Cette mise à jour reflète une action de gouvernance selon l'élément 5.02. L'entreprise inscrit ses actions ordinaires au Nasdaq Stock Market sous le symbole ALTS. Le dépôt a été signé par le Chief Executive Officer par intérim et Chief Financial Officer Jonathan Hugh.

ALT5 Sigma Corporation kündigte eine Führungsänderung an. Am 16. Oktober 2025 hat der Vorstand Peter Tassiopoulos suspendiert und ihm seine Aufgaben als Chief Executive Officer mit sofortiger Wirkung und Gehaltsfortzahlung entzogen. Das Unternehmen bestimmte Jonathan Hugh als Acting Chief Executive Officer, um diese Aufgaben zu übernehmen. Hugh wird seine aktuelle Rolle beibehalten und diese zusätzlichen Verantwortlichkeiten übernehmen.

Dieses Update spiegelt eine Governance-Maßnahme gemäß Punkt 5.02 wider. Das Unternehmen notiert seine Stammaktien an der Nasdaq Stock Market unter dem Symbol ALTS. Die Einreichung wurde von Acting Chief Executive Officer und Chief Financial Officer Jonathan Hugh unterzeichnet.

ALT5 Sigma Corporation أعلنت عن تغيير في القيادة. في 16 أكتوبر 2025، علّق المجلس Peter Tassiopoulos وأزال مهامه كالرئيس التنفيذي، اعتباراً من الفور وبأجر. عينت الشركة Jonathan Hugh لتولي تلك المهام كرئيس تنفيذي مؤقت. سيواصل Hugh دوره الحالي مع تحمّل هذه المسؤوليات الإضافية.

هذا التحديث يعكس إجراء حوكمة بموجب البند 5.02. تسجل الشركة أسهمها العادية في Nasdaq تحت الرمز ALTS. تم توقيع الإيداع من قبل الرئيس التنفيذي المؤقت والمدير المالي Jonathan Hugh.

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Insights

CEO suspended; CFO assumes acting CEO role for continuity.

The Board suspended the CEO on October 16, 2025 with pay and reassigned chief executive duties to Jonathan Hugh as Acting CEO. This concentrates leadership in a single executive who also serves as CFO, which can streamline decisions but may stretch capacity.

The move is under Item 5.02, indicating a board-level governance action. No rationale or strategic shift is detailed in the excerpt, so operational impact is not defined.

The signature by Hugh dated October 22, 2025 confirms the transition in place. Subsequent disclosures may clarify duration of the acting role and any further board decisions.

ALT5 Sigma Corporation ha annunciato un cambio di leadership. Il 16 ottobre 2025, il Consiglio ha sospeso Peter Tassiopoulos e rimosso i suoi compiti di Amministratore Delegato, con effetto immediato e con retribuzione. L'azienda ha nominato Jonathan Hugh per assumere tali compiti come Amministratore Delegato ad interim. Hugh continuerà nel suo ruolo attuale svolgendo anche queste responsabilità aggiuntive.

Questo aggiornamento riflette una azione di governance ai sensi della voce 5.02. L'azienda elenca il proprio titolo azionario comune su The Nasdaq Stock Market con il simbolo ALTS. Il deposito è stato firmato dall'Amministratore Delegato ad interim e Direttore Finanziario Jonathan Hugh.

ALT5 Sigma Corporation anunció un cambio en el liderazgo. El 16 de octubre de 2025, la Junta suspendió a Peter Tassiopoulos y le retiró sus funciones como Director Ejecutivo, con efecto inmediato y con sueldo. La empresa nombró a Jonathan Hugh para asumir esas funciones como Director Ejecutivo Interino. Hugh continuará en su puesto actual mientras asume estas responsabilidades adicionales.

Esta actualización refleja una acción de gobernanza conforme al punto 5.02. La empresa lista su acción ordinaria en The Nasdaq Stock Market bajo el símbolo ALTS. La escritura fue firmada por el Director Ejecutivo Interino y Director Financiero Jonathan Hugh.

ALT5 Sigma Corporation가 리더십 변화를 발표했습니다. 2025년 10월 16일 이사회는 Peter Tassiopoulos를 정직해제하고 CEO 직무를 즉시 해임하며 유급으로 처리했습니다. 회사는 Jonathan Hugh를 임시 CEO로 지명해 그 직무를 맡게 했습니다. Hugh는 현재 직무를 유지하며 이 추가 책임을 수행합니다.

이 업데이트는 항목 5.02에 따른 거버넌스 조치를 반영합니다. 회사는 일반주를 나스닥 주식시장에 ALTS 기호로 상장합니다. 제출서는 Acting Chief Executive Officer 및 Chief Financial Officer Jonathan Hugh가 서명했습니다.

ALT5 Sigma Corporation a annoncé un changement de direction. Le 16 octobre 2025, le conseil a suspendu Peter Tassiopoulos et retiré ses fonctions de Chief Executive Officer, avec effet immédiat et avec salaire. L'entreprise a nommé Jonathan Hugh pour assumer ces fonctions en tant que Chief Executive Officer par intérim. Hugh restera dans son rôle actuel tout en assumant ces responsabilités supplémentaires.

Cette mise à jour reflète une action de gouvernance selon l'élément 5.02. L'entreprise inscrit ses actions ordinaires au Nasdaq Stock Market sous le symbole ALTS. Le dépôt a été signé par le Chief Executive Officer par intérim et Chief Financial Officer Jonathan Hugh.

ALT5 Sigma Corporation kündigte eine Führungsänderung an. Am 16. Oktober 2025 hat der Vorstand Peter Tassiopoulos suspendiert und ihm seine Aufgaben als Chief Executive Officer mit sofortiger Wirkung und Gehaltsfortzahlung entzogen. Das Unternehmen bestimmte Jonathan Hugh als Acting Chief Executive Officer, um diese Aufgaben zu übernehmen. Hugh wird seine aktuelle Rolle beibehalten und diese zusätzlichen Verantwortlichkeiten übernehmen.

Dieses Update spiegelt eine Governance-Maßnahme gemäß Punkt 5.02 wider. Das Unternehmen notiert seine Stammaktien an der Nasdaq Stock Market unter dem Symbol ALTS. Die Einreichung wurde von Acting Chief Executive Officer und Chief Financial Officer Jonathan Hugh unterzeichnet.

ALT5 Sigma Corporation أعلنت عن تغيير في القيادة. في 16 أكتوبر 2025، علّق المجلس Peter Tassiopoulos وأزال مهامه كالرئيس التنفيذي، اعتباراً من الفور وبأجر. عينت الشركة Jonathan Hugh لتولي تلك المهام كرئيس تنفيذي مؤقت. سيواصل Hugh دوره الحالي مع تحمّل هذه المسؤوليات الإضافية.

هذا التحديث يعكس إجراء حوكمة بموجب البند 5.02. تسجل الشركة أسهمها العادية في Nasdaq تحت الرمز ALTS. تم توقيع الإيداع من قبل الرئيس التنفيذي المؤقت والمدير المالي Jonathan Hugh.

ALT5 Sigma Corporation宣布了领导层变动。2025年10月16日,董事会暂停了Peter Tassiopoulos,并免除了他作为首席执行官的职责,立即生效并带薪发放。公司任命Jonathan Hugh接任上述职责,担任代理首席执行官。Hugh将继续担任现任职务,同时承担这些额外责任。

此次更新反映了基于条款5.02的治理行动。公司在纳斯达克交易所以代码ALTS列出其普通股。该备案由代理首席执行官兼首席财务官Jonathan Hugh签署。

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

 

Date of Report (Date of earliest event reported) October 16, 2025

 

ALT5 SIGMA CORPORATION

(Exact name of registrant as specified in its charter)

 

Nevada   000-19621   41-1454591

(State or other jurisdiction

of incorporation)

 

(Commission

File Number)

 

(IRS Employer

Identification No.)

 

325 E. Warm Spring Road, Suite 102

Las Vegas, NV

  89119
(Address of principal executive offices)   (Zip Code)

 

Registrant’s telephone number, including area code (702) 997-5968

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
   
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
   
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
   
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

 

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class   Trading Symbol(s)   Name of each exchange on which registered
Common stock (par value $0.001 per share)   ALTS   The Nasdaq Stock Market LLC

 

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

 

Emerging growth company

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

 

 

 

 

 

 

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

 

On October 16, 2025, Peter Tassiopoulos was suspended by the Board of Directors of Alt5 Sigma Corporation (the “Company”) and removed of his duties as Chief Executive Officer. His suspension is effective immediately, with pay. Jonathan Hugh has assumed Mr. Tassiopoulos’s duties as Acting Chief Executive Officer. Mr. Hugh will remain in his current position while carrying out such additional responsibilities.

 

 

 

 

SIGNATURES

 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

  ALT5 SIGMA CORPORATION
   
Date: October 22, 2025 By: /s/ Jonathan Hugh
    Jonathan Hugh
    Acting Chief Executive Officer; Chief Financial Officer

 

 

 

FAQ

What leadership change did ALTS disclose?

On October 16, 2025, ALTS suspended CEO Peter Tassiopoulos with pay and reassigned CEO duties to Jonathan Hugh as Acting CEO.

Is the CEO suspension at ALT5 Sigma effective immediately?

Yes. The company states the suspension is effective immediately and with pay.

What role does Jonathan Hugh hold at ALTS in addition to Acting CEO?

Jonathan Hugh remains in his current position (also CFO) while carrying out the additional Acting CEO responsibilities.

What SEC item covers ALTS’s disclosure?

The change is disclosed under Item 5.02: Departure or appointment of certain officers and compensatory arrangements.

What is ALT5 Sigma’s stock symbol and exchange?

ALT5 Sigma’s common stock trades on The Nasdaq Stock Market under the symbol ALTS.

Who signed the filing for ALT5 Sigma?

The filing was signed by /s/ Jonathan Hugh, Acting Chief Executive Officer; Chief Financial Officer, dated October 22, 2025.
ALT5 Sigma Corporation

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