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[8-K] Arcellx, Inc. Reports Material Event

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
8-K
Rhea-AI Filing Summary

Root, Inc. (ROOT) � Schedule 13G/A (Amendment 5)

Founder Alexander E. Timm reports beneficial ownership of 1,139,040 shares, representing 7.8 % of Root’s Class A common stock outstanding as of 30 July 2025. The stake comprises 82,647 Class A shares and 1,056,393 Class B shares; each Class B share is convertible into one Class A share at the holder’s option. Timm holds sole voting and dispositive power over the entire position and reports no shared control with other persons.

The filing, triggered by an event dated 30 June 2025, confirms that the company’s founder remains a >5 % holder. No transactions, sales, or additional agreements are disclosed, and the filing does not indicate any shift in corporate control or governance structure. Certification attests that the information provided is true, complete, and correct.

Root, Inc. (ROOT) � Schedule 13G/A (Emendamento 5)

Il fondatore Alexander E. Timm dichiara la proprietà beneficiaria di 1.139.040 azioni, corrispondenti al 7,8% del capitale sociale di classe A di Root in circolazione al 30 luglio 2025. La partecipazione è composta da 82.647 azioni di classe A e 1.056.393 azioni di classe B; ogni azione di classe B è convertibile in un’azione di classe A a scelta del detentore. Timm detiene il pieno potere di voto e di disposizione sull’intera posizione e non riporta alcun controllo condiviso con altre persone.

La comunicazione, scaturita da un evento del 30 giugno 2025, conferma che il fondatore dell’azienda resta un azionista con una quota superiore al 5%. Non sono state divulgate transazioni, vendite o accordi aggiuntivi, e il documento non indica alcun cambiamento nel controllo societario o nella struttura di governance. La certificazione attesta che le informazioni fornite sono veritiere, complete e corrette.

Root, Inc. (ROOT) � Schedule 13G/A (Enmienda 5)

El fundador Alexander E. Timm informa la propiedad beneficiaria de 1.139.040 acciones, que representan el 7,8% de las acciones comunes Clase A en circulación de Root al 30 de julio de 2025. La participación consta de 82.647 acciones Clase A y 1.056.393 acciones Clase B; cada acción Clase B es convertible en una acción Clase A a opción del titular. Timm posee el poder exclusivo de voto y disposición sobre toda la posición y no reporta control compartido con otras personas.

La presentación, motivada por un evento fechado el 30 de junio de 2025, confirma que el fundador de la compañía sigue siendo un accionista con más del 5%. No se revelan transacciones, ventas ni acuerdos adicionales, y el documento no indica ningún cambio en el control corporativo o en la estructura de gobernanza. La certificación asegura que la información proporcionada es verdadera, completa y correcta.

Root, Inc. (ROOT) � Schedule 13G/A (수정 5)

창립� Alexander E. Timm은 2025� 7� 30� 기준으로 Root� 클래� A 보통� 1,139,040�, � 7.8%� 실질 소유권을 보고합니�. � 지분은 82,647주의 클래� A 주식� 1,056,393주의 클래� B 주식으로 구성되며, � 클래� B 주식은 보유자의 선택� 따라 클래� A 주식 1주로 전환 가능합니다. Timm은 전체 지분에 대� 단독 의결� � 처분�� 보유하며, 다른 사람과의 공동 통제� 보고하지 않았습니�.

2025� 6� 30� 발생� 사건� 의해 촉발� 이번 제출 서류� 회사 창립자가 여전� 5% 이상� 지분을 보유하고 있음� 확인합니�. 거래, 매각 또는 추가 계약은 공개되지 않았으며, 제출 서류� 기업 통제권이� 거버넌스 구조� 변화를 나타내지 않습니다. 인증서는 제공� 정보가 진실되고 완전하며 정확함을 증명합니�.

Root, Inc. (ROOT) � Schedule 13G/A (Amendement 5)

Le fondateur Alexander E. Timm déclare une propriété bénéficiaire de 1 139 040 actions, représentant 7,8 % des actions ordinaires de classe A en circulation de Root au 30 juillet 2025. La participation comprend 82 647 actions de classe A et 1 056 393 actions de classe B ; chaque action de classe B est convertible en une action de classe A à la discrétion du détenteur. Timm détient le pouvoir exclusif de vote et de disposition sur l’intégralité de la position et ne signale aucun contrôle partagé avec d’autres personnes.

Le dépôt, déclenché par un événement daté du 30 juin 2025, confirme que le fondateur de la société reste un détenteur de plus de 5 %. Aucune transaction, vente ou accord supplémentaire n’est divulgué, et le dépôt n’indique aucun changement dans le contrôle de l’entreprise ou la structure de gouvernance. La certification atteste que les informations fournies sont vraies, complètes et exactes.

Root, Inc. (ROOT) � Schedule 13G/A (Änderung 5)

Gründer Alexander E. Timm meldet den wirtschaftlichen Eigentum an 1.139.040 Aktien, was 7,8 % der ausstehenden Stammaktien der Klasse A von Root zum 30. Juli 2025 entspricht. Die Beteiligung besteht aus 82.647 Aktien der Klasse A und 1.056.393 Aktien der Klasse B; jede Klasse-B-Aktie ist nach Wahl des Inhabers in eine Klasse-A-Aktie wandelbar. Timm hält alleinige Stimm- und Verfügungsgewalt über die gesamte Position und berichtet keine gemeinsame Kontrolle mit anderen Personen.

Die Einreichung, ausgelöst durch ein Ereignis vom 30. Juni 2025, bestätigt, dass der Gründer des Unternehmens weiterhin ein Anteilseigner von über 5 % ist. Es werden keine Transaktionen, Verkäufe oder zusätzlichen Vereinbarungen offengelegt, und die Einreichung weist keine Veränderungen in der Unternehmensführung oder Kontrollstruktur auf. Die Zertifizierung bestätigt, dass die bereitgestellten Informationen wahr, vollständig und korrekt sind.

Positive
  • Founder retains a meaningful 7.8 % stake, aligning management incentives with shareholder interests.
Negative
  • None.

Insights

TL;DR: Filing shows founder still owns 7.8 % of ROOT; no transaction, minimal market impact.

Ownership stability from Alexander E. Timm signals continued alignment between management and shareholders, supporting governance continuity. Because the filing merely updates share counts and contains no purchase or sale data, it is unlikely to move the stock in the near term. The stake size remains below typical threshold for change-of-control concerns yet comfortably above the 5 % reporting line. Overall, informational but not a catalyst.

TL;DR: Founder maintains controlling influence through dual-class structure; governance profile unchanged.

Timm’s mix of Class A and high-vote (convertible) Class B shares preserves his influence while providing flexibility to convert if liquidity is needed. The absence of shared voting rights suggests centralized decision making, typical for founder-led tech firms. No evidence of dilution or disposal reduces near-term governance risk. Investors should monitor future amendments for directional changes.

Root, Inc. (ROOT) � Schedule 13G/A (Emendamento 5)

Il fondatore Alexander E. Timm dichiara la proprietà beneficiaria di 1.139.040 azioni, corrispondenti al 7,8% del capitale sociale di classe A di Root in circolazione al 30 luglio 2025. La partecipazione è composta da 82.647 azioni di classe A e 1.056.393 azioni di classe B; ogni azione di classe B è convertibile in un’azione di classe A a scelta del detentore. Timm detiene il pieno potere di voto e di disposizione sull’intera posizione e non riporta alcun controllo condiviso con altre persone.

La comunicazione, scaturita da un evento del 30 giugno 2025, conferma che il fondatore dell’azienda resta un azionista con una quota superiore al 5%. Non sono state divulgate transazioni, vendite o accordi aggiuntivi, e il documento non indica alcun cambiamento nel controllo societario o nella struttura di governance. La certificazione attesta che le informazioni fornite sono veritiere, complete e corrette.

Root, Inc. (ROOT) � Schedule 13G/A (Enmienda 5)

El fundador Alexander E. Timm informa la propiedad beneficiaria de 1.139.040 acciones, que representan el 7,8% de las acciones comunes Clase A en circulación de Root al 30 de julio de 2025. La participación consta de 82.647 acciones Clase A y 1.056.393 acciones Clase B; cada acción Clase B es convertible en una acción Clase A a opción del titular. Timm posee el poder exclusivo de voto y disposición sobre toda la posición y no reporta control compartido con otras personas.

La presentación, motivada por un evento fechado el 30 de junio de 2025, confirma que el fundador de la compañía sigue siendo un accionista con más del 5%. No se revelan transacciones, ventas ni acuerdos adicionales, y el documento no indica ningún cambio en el control corporativo o en la estructura de gobernanza. La certificación asegura que la información proporcionada es verdadera, completa y correcta.

Root, Inc. (ROOT) � Schedule 13G/A (수정 5)

창립� Alexander E. Timm은 2025� 7� 30� 기준으로 Root� 클래� A 보통� 1,139,040�, � 7.8%� 실질 소유권을 보고합니�. � 지분은 82,647주의 클래� A 주식� 1,056,393주의 클래� B 주식으로 구성되며, � 클래� B 주식은 보유자의 선택� 따라 클래� A 주식 1주로 전환 가능합니다. Timm은 전체 지분에 대� 단독 의결� � 처분�� 보유하며, 다른 사람과의 공동 통제� 보고하지 않았습니�.

2025� 6� 30� 발생� 사건� 의해 촉발� 이번 제출 서류� 회사 창립자가 여전� 5% 이상� 지분을 보유하고 있음� 확인합니�. 거래, 매각 또는 추가 계약은 공개되지 않았으며, 제출 서류� 기업 통제권이� 거버넌스 구조� 변화를 나타내지 않습니다. 인증서는 제공� 정보가 진실되고 완전하며 정확함을 증명합니�.

Root, Inc. (ROOT) � Schedule 13G/A (Amendement 5)

Le fondateur Alexander E. Timm déclare une propriété bénéficiaire de 1 139 040 actions, représentant 7,8 % des actions ordinaires de classe A en circulation de Root au 30 juillet 2025. La participation comprend 82 647 actions de classe A et 1 056 393 actions de classe B ; chaque action de classe B est convertible en une action de classe A à la discrétion du détenteur. Timm détient le pouvoir exclusif de vote et de disposition sur l’intégralité de la position et ne signale aucun contrôle partagé avec d’autres personnes.

Le dépôt, déclenché par un événement daté du 30 juin 2025, confirme que le fondateur de la société reste un détenteur de plus de 5 %. Aucune transaction, vente ou accord supplémentaire n’est divulgué, et le dépôt n’indique aucun changement dans le contrôle de l’entreprise ou la structure de gouvernance. La certification atteste que les informations fournies sont vraies, complètes et exactes.

Root, Inc. (ROOT) � Schedule 13G/A (Änderung 5)

Gründer Alexander E. Timm meldet den wirtschaftlichen Eigentum an 1.139.040 Aktien, was 7,8 % der ausstehenden Stammaktien der Klasse A von Root zum 30. Juli 2025 entspricht. Die Beteiligung besteht aus 82.647 Aktien der Klasse A und 1.056.393 Aktien der Klasse B; jede Klasse-B-Aktie ist nach Wahl des Inhabers in eine Klasse-A-Aktie wandelbar. Timm hält alleinige Stimm- und Verfügungsgewalt über die gesamte Position und berichtet keine gemeinsame Kontrolle mit anderen Personen.

Die Einreichung, ausgelöst durch ein Ereignis vom 30. Juni 2025, bestätigt, dass der Gründer des Unternehmens weiterhin ein Anteilseigner von über 5 % ist. Es werden keine Transaktionen, Verkäufe oder zusätzlichen Vereinbarungen offengelegt, und die Einreichung weist keine Veränderungen in der Unternehmensführung oder Kontrollstruktur auf. Die Zertifizierung bestätigt, dass die bereitgestellten Informationen wahr, vollständig und korrekt sind.

0001786205false00017862052025-08-072025-08-07

 

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): August 07, 2025

 

 

Arcellx, Inc.

(Exact name of Registrant as Specified in Its Charter)

 

 

Delaware

001-41259

47-2855917

(State or Other Jurisdiction
of Incorporation)

(Commission File Number)

(IRS Employer
Identification No.)

 

 

 

 

 

800 Bridge Parkway

 

Redwood City, California

 

94065

(Address of Principal Executive Offices)

 

(Zip Code)

 

Registrant’s Telephone Number, Including Area Code: 240 327-0630

 

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

 

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, $0.001 par value per share

 

ACLX

 

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 2.02 Results of Operations and Financial Condition.

On August 7, 2025, Arcellx, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the fiscal quarter ended June 30, 2025. A copy of the Company’s press release is attached hereto as Exhibit 99.1.

The information furnished pursuant to Item 2.02 on this Form 8-K, including Exhibit 99.1 attached hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any other filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

 

 

 

Exhibit

No.

 

Description

 

 

99.1

 

Press Release dated August 7, 2025

 

 

104

 

Cover Page Interactive Data File (embedded within the Inline XBRL Document)

 


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.

 

 

 

Arcellx, Inc.

 

 

 

 

Date:

August 7, 2025

By:

/s/ Rami Elghandour

 

 

 

Rami Elghandour
Chief Executive Officer

 


FAQ

How many Root (ROOT) shares does Alexander E. Timm own?

He beneficially owns 1,139,040 shares, including 82,647 Class A and 1,056,393 Class B shares.

What percentage of Root’s Class A stock does that represent?

The stake equals 7.8 % of Class A shares outstanding as of 30 July 2025.

Does Timm share voting or dispositive power with anyone?

No. He holds sole voting and sole dispositive power over all reported shares.

Are the Class B shares convertible?

Yes. Each Class B share can be converted into one Class A share at any time at the holder’s option.

Is there any indication of recent share purchases or sales?

The filing provides no details of transactions; it is an ownership update only.
ARCELLX INC

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Biotechnology
Biological Products, (no Disgnostic Substances)
United States
REDWOOD CITY