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[S-8 POS] iTeos Therapeutics, Inc. SEC Filing

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
S-8 POS
Rhea-AI Filing Summary

iTeos Therapeutics, Inc. completed a merger and terminated pending equity offerings. The company entered into a Merger Agreement with Concentra Biosciences, LLC and its subsidiary, and on August 29, 2025 Merger Sub merged into iTeos with iTeos surviving as a wholly owned subsidiary of Parent. In the transaction each outstanding share (excluding treasury shares, shares held by Parent/Merger Sub, and shares subject to valid appraisal) was converted into $10.047 in cash per share plus one non-transferable contractual contingent value right (CVR) per share. As a result of the Merger, iTeos terminated its registered offerings and filed post-effective amendments to withdraw and remove any unsold securities previously registered under several Form S-8 registration statements.

iTeos Therapeutics, Inc. ha completato una fusione e ha annullato offerte di capitale pendenti. La società ha sottoscritto un Accordo di Fusione con Concentra Biosciences, LLC e la sua controllata e, il 29 agosto 2025, la Merger Sub è stata fusa in iTeos, con iTeos che è rimasta in vita come controllata interamente posseduta dalla Capogruppo. Nell’operazione ogni azione in circolazione (escluse le azioni proprie, le azioni detenute da Parent/Merger Sub e le azioni soggette a un valido diritto di valutazione) è stata convertita in $10,047 in contanti per azione più un diritto contrattuale contingente (CVR) non trasferibile per azione. A seguito della fusione, iTeos ha annullato le sue offerte registrate e ha presentato emendamenti post-effettivi per ritirare e rimuovere eventuali titoli invenduti precedentemente registrati in più dichiarazioni di registrazione Form S-8.

iTeos Therapeutics, Inc. completó una fusión y canceló ofertas de capital pendientes. La compañía celebró un Acuerdo de Fusión con Concentra Biosciences, LLC y su subsidiaria y, el 29 de agosto de 2025, la Merger Sub se fusionó con iTeos, con iTeos permaneciendo como subsidiaria totalmente propiedad de la Matriz. En la transacción, cada acción en circulación (excluyendo acciones en tesorería, acciones en poder de Parent/Merger Sub y acciones sujetas a una valoración válida) se convirtió en $10.047 en efectivo por acción más un derecho contractual contingente (CVR) no transferible por acción. Como resultado de la fusión, iTeos canceló sus ofertas registradas y presentó enmiendas post-efectivas para retirar y eliminar cualquier valor no vendido previamente registrado bajo varias declaraciones de registro Form S-8.

iTeos Therapeutics, Inc.는 합병을 완료하고 진행 중인 주식 공모를 종료했습니다. 회사는 Concentra Biosciences, LLC 및 그 자회사와 합병계약을 체결했으며, 2025년 8월 29일 Merger Sub가 iTeos에 합병되어 iTeos는 모회사의 완전 소유 자회사가 되었습니다. 거래에 따라 모든 발행 주식(자사주, Parent/Merger Sub가 보유한 주식 및 유효한 감정 청구 대상 주식은 제외)은 주당 $10.047의 현금과 주당 양도 불가능한 계약상 조건부 가치권(CVR) 1개로 전환되었습니다. 합병의 결과로 iTeos는 등록된 공모를 종료하고 여러 Form S-8 등록명세서에 따라 이전에 등록된 미판매 증권을 철회 및 삭제하기 위한 사후 효력 변경서를 제출했습니다.

iTeos Therapeutics, Inc. a finalisé une fusion et annulé des offres de titres en cours. La société a conclu un accord de fusion avec Concentra Biosciences, LLC et sa filiale et, le 29 août 2025, la Merger Sub a fusionné avec iTeos, iTeos subsistant en tant que filiale en propriété exclusive de la société mère. Dans la transaction, chaque action en circulation (à l’exclusion des actions en trésorerie, des actions détenues par Parent/Merger Sub et des actions soumises à une demande d’évaluation valide) a été convertie en 10,047 $ en espèces par action plus un droit contractuel conditionnel (CVR) non transférable par action. À la suite de la fusion, iTeos a annulé ses offres enregistrées et déposé des amendements post-effectifs pour retirer et supprimer tout titre invendu précédemment enregistré sous plusieurs déclarations d’enregistrement Form S-8.

iTeos Therapeutics, Inc. hat eine Fusion abgeschlossen und anhängige Eigenkapitalangebote beendet. Das Unternehmen schloss eine Fusionsvereinbarung mit Concentra Biosciences, LLC und deren Tochtergesellschaft ab, und am 29. August 2025 wurde die Merger Sub in iTeos verschmolzen, wobei iTeos als hundertprozentige Tochtergesellschaft der Muttergesellschaft fortbesteht. Im Rahmen der Transaktion wurde jede ausstehende Aktie (ausgenommen eigene Aktien, von Parent/Merger Sub gehaltene Aktien und Aktien, die einem gültigen Bewertungsanspruch unterliegen) in $10,047 in bar pro Aktie plus ein nicht übertragbares vertragliches bedingtes Wertrecht (CVR) pro Aktie umgewandelt. Infolge der Fusion hat iTeos seine registrierten Angebote beendet und nachwirksame Änderungen eingereicht, um nicht verkaufte Wertpapiere, die zuvor unter mehreren Form S-8-Registrierungserklärungen registriert waren, zurückzuziehen und zu entfernen.

Positive
  • Completed change of control: iTeos became a wholly owned subsidiary of Concentra, providing a definitive outcome for shareholders
  • Cash consideration disclosed: Shareholders (other than carved-out categories) received $10.047 per share
  • Contingent value rights granted: Each share converted also received one non-transferable CVR, preserving potential additional consideration
  • Regulatory housekeeping completed: Company withdrew and terminated effectiveness of multiple Form S-8 registration statements, removing unsold securities
Negative
  • None.

Insights

TL;DR: iTeos was acquired; shareholders received $10.047 cash plus a CVR and all Form S-8 offerings were withdrawn.

The filing documents a definitive change of control: iTeos became a wholly owned subsidiary of Concentra following the merger effective August 29, 2025. The per-share cash consideration of $10.047 is an explicit, quantifiable outcome for holders of common stock (with standard carve-outs for treasury, Parent-held, and appraisal shares). The company has fulfilled its registration undertakings by removing unsold shares from multiple S-8 registration statements, which ends the company’s publicly registered employee equity issuance programs.

TL;DR: The transaction effectuated a statutory merger and closed out outstanding registration obligations under S-8 filings.

The document is procedural and confirms post-closing housekeeping: termination of registration statements and removal of unissued securities from registration as required by prior undertakings. It also records the treatment of different share categories and the issuance of contingent value rights, which may create future contingent payoffs but are non-transferable per the text. This filing is primarily administrative following a material corporate transaction.

iTeos Therapeutics, Inc. ha completato una fusione e ha annullato offerte di capitale pendenti. La società ha sottoscritto un Accordo di Fusione con Concentra Biosciences, LLC e la sua controllata e, il 29 agosto 2025, la Merger Sub è stata fusa in iTeos, con iTeos che è rimasta in vita come controllata interamente posseduta dalla Capogruppo. Nell’operazione ogni azione in circolazione (escluse le azioni proprie, le azioni detenute da Parent/Merger Sub e le azioni soggette a un valido diritto di valutazione) è stata convertita in $10,047 in contanti per azione più un diritto contrattuale contingente (CVR) non trasferibile per azione. A seguito della fusione, iTeos ha annullato le sue offerte registrate e ha presentato emendamenti post-effettivi per ritirare e rimuovere eventuali titoli invenduti precedentemente registrati in più dichiarazioni di registrazione Form S-8.

iTeos Therapeutics, Inc. completó una fusión y canceló ofertas de capital pendientes. La compañía celebró un Acuerdo de Fusión con Concentra Biosciences, LLC y su subsidiaria y, el 29 de agosto de 2025, la Merger Sub se fusionó con iTeos, con iTeos permaneciendo como subsidiaria totalmente propiedad de la Matriz. En la transacción, cada acción en circulación (excluyendo acciones en tesorería, acciones en poder de Parent/Merger Sub y acciones sujetas a una valoración válida) se convirtió en $10.047 en efectivo por acción más un derecho contractual contingente (CVR) no transferible por acción. Como resultado de la fusión, iTeos canceló sus ofertas registradas y presentó enmiendas post-efectivas para retirar y eliminar cualquier valor no vendido previamente registrado bajo varias declaraciones de registro Form S-8.

iTeos Therapeutics, Inc.는 합병을 완료하고 진행 중인 주식 공모를 종료했습니다. 회사는 Concentra Biosciences, LLC 및 그 자회사와 합병계약을 체결했으며, 2025년 8월 29일 Merger Sub가 iTeos에 합병되어 iTeos는 모회사의 완전 소유 자회사가 되었습니다. 거래에 따라 모든 발행 주식(자사주, Parent/Merger Sub가 보유한 주식 및 유효한 감정 청구 대상 주식은 제외)은 주당 $10.047의 현금과 주당 양도 불가능한 계약상 조건부 가치권(CVR) 1개로 전환되었습니다. 합병의 결과로 iTeos는 등록된 공모를 종료하고 여러 Form S-8 등록명세서에 따라 이전에 등록된 미판매 증권을 철회 및 삭제하기 위한 사후 효력 변경서를 제출했습니다.

iTeos Therapeutics, Inc. a finalisé une fusion et annulé des offres de titres en cours. La société a conclu un accord de fusion avec Concentra Biosciences, LLC et sa filiale et, le 29 août 2025, la Merger Sub a fusionné avec iTeos, iTeos subsistant en tant que filiale en propriété exclusive de la société mère. Dans la transaction, chaque action en circulation (à l’exclusion des actions en trésorerie, des actions détenues par Parent/Merger Sub et des actions soumises à une demande d’évaluation valide) a été convertie en 10,047 $ en espèces par action plus un droit contractuel conditionnel (CVR) non transférable par action. À la suite de la fusion, iTeos a annulé ses offres enregistrées et déposé des amendements post-effectifs pour retirer et supprimer tout titre invendu précédemment enregistré sous plusieurs déclarations d’enregistrement Form S-8.

iTeos Therapeutics, Inc. hat eine Fusion abgeschlossen und anhängige Eigenkapitalangebote beendet. Das Unternehmen schloss eine Fusionsvereinbarung mit Concentra Biosciences, LLC und deren Tochtergesellschaft ab, und am 29. August 2025 wurde die Merger Sub in iTeos verschmolzen, wobei iTeos als hundertprozentige Tochtergesellschaft der Muttergesellschaft fortbesteht. Im Rahmen der Transaktion wurde jede ausstehende Aktie (ausgenommen eigene Aktien, von Parent/Merger Sub gehaltene Aktien und Aktien, die einem gültigen Bewertungsanspruch unterliegen) in $10,047 in bar pro Aktie plus ein nicht übertragbares vertragliches bedingtes Wertrecht (CVR) pro Aktie umgewandelt. Infolge der Fusion hat iTeos seine registrierten Angebote beendet und nachwirksame Änderungen eingereicht, um nicht verkaufte Wertpapiere, die zuvor unter mehreren Form S-8-Registrierungserklärungen registriert waren, zurückzuziehen und zu entfernen.


As filed with the Securities and Exchange Commission on August 29, 2025

Registration No. 333-240144
Registration No. 333-254670
Registration No. 333-263791
Registration No. 333-270545
Registration No. 333-277687
Registration No. 333-285550
 

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
 
POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-240144
POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-254670
POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-263791
POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-270545
POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-277687
POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-8 REGISTRATION STATEMENT NO. 333-285550
 
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933


 
ITEOS THERAPEUTICS, INC.
(Exact name of registrant as specified in its charter)


 
Delaware
 
84-3365066
(State or other jurisdiction of
incorporation or organization)
 
(IRS employer
identification number)

321 Arsenal Street
Watertown, Massachusetts 02472
(Address of Principal Executive Offices, including Zip Code)
 

iTeos Therapeutics, Inc. 2019 Stock Option and Grant Plan
iTeos Therapeutics, Inc. 2020 Stock Option and Incentive Plan
iTeos Therapeutics, Inc. 2020 Employee Stock Purchase Plan
(Full title of the Plans)


 
Michael Hearne
Chief Financial Officer
iTeos Therapeutics, Inc.
4747 Executive Drive, Suite 210
San Diego, California 92121
(858) 281-5372
(Name, Address and Telephone Number, including Area Code, of Agent for Service)

Copies to:

Ryan A. Murr
Gibson, Dunn & Crutcher LLP
One Embarcadero Center Suite 2600
San Francisco, California 94111
(415) 393-8200

William Michener
Nicholas Roper
Ropes & Gray LLP
800 Boylston Street
Boston, MA 02199
(617) 951-7000
 
 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer, “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
 
Large accelerated filer
 
  
Accelerated filer
 
       
Non-accelerated filer
 
  
Smaller reporting company
 
       
 
 
 
  
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 7(a)(2)(B) of the Securities Act.  
 

EXPLANATORY NOTE
 
DEREGISTRATION OF UNSOLD SECURITIES
 
These Post-Effective Amendments (the “Post-Effective Amendments”) filed by iTeos Therapeutics, Inc., a Delaware corporation (the “Registrant”), to deregister all shares of the Registrant’s common stock, $0.001 par value per share (the “Shares”), remaining unissued under the following Registration Statements on Form S-8 (each, a “Registration Statement”, and collectively, the “Registration Statements”) filed by the Registrant with the U.S. Securities and Exchange Commission (the “Commission”).
 
 
Registration Statement on Form S-8 (No. 333-240144) pertaining to the registration of (i) 3,323,378 Shares issuable under the 2019 Stock Option and Grant Plan (the “2019 Plan”), (ii) 1,151,680 Shares outstanding and 2,658,138 Shares issuable under the 2020 Stock Option and Incentive Plan (the “2020 Plan”) and (iii) 317,484 Shares issuable under the 2020 Employee Stock Purchase Plan (the “2020 ESPP”).
  
Registration Statement on Form S-8 (No. 333-254670) pertaining to the registration of (i) 1,752,237 Shares issuable under the 2020 Plan and (ii) 350,447 Shares issuable under the 2020 ESPP.
 
Registration Statement on Form S-8 (No. 333-263791) pertaining to the registration of 1,773,300 Shares issuable under the 2020 Plan.
 
Registration Statement on Form S-8 (No. 333-270545) pertaining to the registration of 1,780,560 Shares issuable under the 2020 Plan.
 
Registration Statement on Form S-8 (No. 333-277687) pertaining to the registration of 1,791,904 Shares issuable under the 2020 Plan.
 
Registration Statement on Form S-8 (No. 333-285550) pertaining to the registration of 1,828,402 Shares issuable under the 2020 Plan.
 
The Registrant is filing these Post-Effective Amendments to withdraw and remove any unissued and unsold securities issuable by Registration pursuant to the above-referenced Registration Statements.
 
On July 18, 2025, the Registrant entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Concentra Biosciences, LLC, a Delaware limited liability company (“Parent”), and Concentra Merger Sub VIII, Inc., a Delaware corporation and wholly owned subsidiary of Parent (“Merger Sub”). Pursuant to the Merger Agreement, on August 29, 2025, Merger Sub was merged with and into the Registrant with the Registrant surviving as a wholly owned subsidiary of Parent (the “Merger”). In the Merger, each share of Common Stock (the “Shares”) (other than (i) Shares owned or held in the Company’s treasury immediately prior to the Effective Time, (ii) Shares owned directly or indirectly by Parent or Merger Sub immediately prior to the Effective Time and (iii) Shares held by any stockholder of the Registrant who properly exercised appraisal rights under Delaware law) was converted into the right to receive (i) $10.047 per Share in cash and (ii) one non-transferable contractual contingent value right for each Share.
 
As a result of the Merger, the Registrant has terminated all offerings of its securities pursuant to the Registration Statements. In accordance with an undertaking made by the Registrant in each of the Registration Statements to remove from registration, by means of a post-effective amendment, any of the securities that had been registered for issuance that remain unsold at the termination of the offerings, the Registrant hereby removes from registration all such securities registered under the Registration Statements that remain unsold as of the date hereof and terminates the effectiveness of the Registration Statements.


SIGNATURE
 
Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused these Post-Effective Amendments to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of San Diego, State of California, on August 29, 2025. No other person is required to sign these Post-Effective Amendments to the Registration Statements in reliance on Rule 478 of the Securities Act of 1933, as amended.
 
 
ITEOS THERAPEUTICS, INC.
   
 
/s/ Michael Hearne
 
Name: Michael Hearne
Title: Chief Financial Officer
 

Iteos Therapeutics, Inc.

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Biotechnology
Biological Products, (no Disgnostic Substances)
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