• Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • AI SuperconnectorNEW
  • Settings
  • RSS Feeds
Quantisnow Logo
  • Live Feeds
    • Press Releases
    • Insider Trading
    • FDA Approvals
    • Analyst Ratings
    • Insider Trading
    • SEC filings
    • Market insights
  • Analyst Ratings
  • Alerts
  • Subscriptions
  • AI SuperconnectorNEW
  • Settings
  • RSS Feeds
PublishGo to AppAI Superconnector
    Quantisnow Logo

    © 2025 quantisnow.com
    Democratizing insights since 2022

    Services
    Live news feedsRSS FeedsAlertsPublish with Us
    Company
    AboutQuantisnow PlusContactJobsAI superconnector for talent & startupsNEWLLM Arena
    Legal
    Terms of usePrivacy policyCookie policy

    SEC Form SC 13D/A filed by Theseus Pharmaceuticals Inc. (Amendment)

    1/12/24 6:02:17 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care
    Get the next $THRX alert in real time by email
    SC 13D/A 1 z110242sc13da2.htm AMENDMENT NO. 2

     

     

    SECURITIES AND EXCHANGE COMMISSION

    Washington, DC 20549

     

     

    SCHEDULE 13D/A

     

     

    Under the securities exchange act of 1934
    (amendment no. 2)*

     

     

    Theseus Pharmaceuticals, Inc.

    (Name of Issuer)

     

    Common Stock, par value $0.0001 per share
    (Title of Class of Securities)

     

     

    88369M101
    (CUSIP Number)

     

     

    Kevin Tang

    4747 Executive Drive, Suite 210

    San Diego, CA 92121

    (Name, Address and Telephone Number of Person
    Authorized to Receive Notices and Communications)

     

     

    January 9, 2024
    (Date of Event Which Requires Filing of This Statement)

     

     

    If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. o

     

    *The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

     

    The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

     

     

     

      
     

     

    CUSIP No. 88369M101

     

    1

    NAMES OF REPORTING PERSONS

     

    TANG CAPITAL PARTNERS, LP

     

    2

    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

    (a) x

     

    (b) o

     

    3

    SEC USE ONLY

     

     

    4

    SOURCE OF FUNDS (SEE INSTRUCTIONS)

     

    WC

     

    5

    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E) ¨

     

     

    6

    CITIZENSHIP OR PLACE OF ORGANIZATION

     

    DELAWARE

     

    NUMBER OF
    SHARES
    BENEFICIALLY
    OWNED BY
    EACH REPORTING
    PERSON WITH
    7

    SOLE VOTING POWER

     

    0

     

    8

    SHARED VOTING POWER

     

    3,255,026

     

    9

    SOLE DISPOSITIVE POWER

     

    0

     

    10

    SHARED DISPOSITIVE POWER

     

    3,255,026

     

    11

    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     

    3,255,026

     

    12

    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

     

    o

     

    13

    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11

     

    7.3%

     

    14

    TYPE OF REPORTING PERSON

     

    PN

     

     

     Page 2 of 8 Pages 
     

     

    CUSIP No. 88369M101

     

    1

    NAMES OF REPORTING PERSONS

     

    TANG CAPITAL MANAGEMENT, LLC

     

    2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

    (a) x

     

    (b) o

     

    3

    SEC USE ONLY

     

     

    4

    SOURCE OF FUNDS (SEE INSTRUCTIONS)

     

    WC

     

    5

    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E) ¨

     

     

    6

    CITIZENSHIP OR PLACE OF ORGANIZATION

     

    DELAWARE

     

    NUMBER OF
    SHARES
    BENEFICIALLY
    OWNED BY
    EACH REPORTING
    PERSON WITH
    7

    SOLE VOTING POWER

     

    0

     

    8

    SHARED VOTING POWER

     

    3,255,026

     

    9

    SOLE DISPOSITIVE POWER

     

    0

     

    10

    SHARED DISPOSITIVE POWER

     

    3,255,026

     

    11

    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     

    3,255,026

     

    12

    CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

     

    o

     

    13

    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11

     

    7.3%

     

    14

    TYPE OF REPORTING PERSON

     

    OO

     

     

     Page 3 of 8 Pages 
     

     

    CUSIP No. 88369M101

     

    1

    NAMES OF REPORTING PERSONS

     

    KEVIN TANG

     

    2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

    (a) x

     

    (b) o

     

    3

    SEC USE ONLY

     

     

    4

    SOURCE OF FUNDS (SEE INSTRUCTIONS)

     

    WC

     

    5

    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E) ¨

     

     

    6

    CITIZENSHIP OR PLACE OF ORGANIZATION

     

    UNITED STATES

     

    NUMBER OF
    SHARES
    BENEFICIALLY
    OWNED BY
    EACH REPORTING
    PERSON WITH
    7

    SOLE VOTING POWER

     

    0

     

    8

    SHARED VOTING POWER

     

    3,255,026

     

    9

    SOLE DISPOSITIVE POWER

     

    0

     

    10

    SHARED DISPOSITIVE POWER

     

    3,255,026

     

    11

    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     

    3,255,026

     

    12

    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

     

    o

     

    13

    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11

     

    7.3%

     

    14

    TYPE OF REPORTING PERSON

     

    IN

     

     

     Page 4 of 8 Pages 
     

     

    CUSIP No. 88369M101

     

    1

    NAMES OF REPORTING PERSONS

     

    Concentra Biosciences, LLC

     

    2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

    (a) x

     

    (b) o

     

    3

    SEC USE ONLY

     

     

    4

    SOURCE OF FUNDS (SEE INSTRUCTIONS)

     

     

    5

    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E) ¨

     

     

    6

    CITIZENSHIP OR PLACE OF ORGANIZATION

     

    UNITED STATES

     

    NUMBER OF
    SHARES
    BENEFICIALLY
    OWNED BY
    EACH REPORTING
    PERSON WITH
    7

    SOLE VOTING POWER

     

    0

     

    8

    SHARED VOTING POWER

     

    0

     

    9

    SOLE DISPOSITIVE POWER

     

    0

     

    10

    SHARED DISPOSITIVE POWER

     

    0

     

    11

    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     

    0

     

    12

    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

     

    o

     

    13

    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11

     

    0%

     

    14

    TYPE OF REPORTING PERSON

     

    OO

     

     

     Page 5 of 8 Pages 
     

     

    CUSIP No. 88369M101

     

    1

    NAMES OF REPORTING PERSONS

     

    Concentra MERGER SUB II, INC

     

    2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

    (a) x

     

    (b) o

     

    3

    SEC USE ONLY

     

     

    4

    SOURCE OF FUNDS (SEE INSTRUCTIONS)

     

     

    5

    CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(D) OR 2(E) ¨

     

     

    6

    CITIZENSHIP OR PLACE OF ORGANIZATION

     

    UNITED STATES

     

    NUMBER OF
    SHARES
    BENEFICIALLY
    OWNED BY
    EACH REPORTING
    PERSON WITH
    7

    SOLE VOTING POWER

     

    0

     

    8

    SHARED VOTING POWER

     

    0

     

    9

    SOLE DISPOSITIVE POWER

     

    0

     

    10

    SHARED DISPOSITIVE POWER

     

    0

     

    11

    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     

    0

     

    12

    CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES

     

    o

     

    13

    PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11

     

    0%

     

    14

    TYPE OF REPORTING PERSON

     

    CO

     

     

     Page 6 of 8 Pages 
     

     

    Explanatory Note

     

    This Schedule 13D/A (this “Statement”) relates to shares of Common Stock, par value $0.0001 per share (the “Common Stock” or “Shares”) of Theseus Pharmaceuticals, Inc., a Delaware corporation (the “Issuer”) and amends the Schedule 13D (the “Original Schedule 13D”) filed on November 24, 2023, as amended by Amendment No. 1 to the Original Schedule 13D filed on December 27, 2023 (as amended, the “Statement” or “Schedule 13D”).

     

    Items 4, 6 and 7 of the Statement are hereby amended and supplemented to the extent hereinafter expressly set forth. Except as amended hereby, the original disclosure set forth in the Statement shall remain unchanged. All capitalized terms used and not expressly defined herein have the respective meanings ascribed to such terms in the Original Schedule 13D.

     

    Item 4.Purpose of Transaction

     

    Item 4 of the Schedule 13D is amended by adding the following:

     

    Tender Offer 

     

    On January 9, 2024, Concentra Merger Sub II, Inc., a Delaware corporation and a wholly owned subsidiary of Concentra (“Merger Sub”), commenced a cash tender offer to purchase all outstanding shares of Common Stock of the Issuer, as contemplated by the Merger Agreement. The tender offer is currently scheduled to expire at one minute past 11:59 p.m. Eastern Time on February 7, 2024, subject to the terms and conditions described in the offer to purchase dated January 9, 2024 (together with any amendments or supplements thereto, the “Offer to Purchase”), the accompanying letter of transmittal (together with any amendments or supplements thereto and with the Offer to Purchase, the “Tender Offer”), and the Schedule TO filed on behalf of Merger Sub on January 9, 2024 (“Schedule TO”). The foregoing description of the Tender Offer does not purport to be complete and is qualified in its entirety by reference to the full text of the Tender Offer documentation, copies of which are attached hereto as exhibits and incorporated herein by reference.

     

    Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer

     

    Item 6 of the Schedule 13D is amended by adding the following:

     

    The information set forth in Item 4 under the heading “Tender Offer” is incorporated herein by reference.

     

    Item 7.Material to Be Filed as Exhibits

     

    Exhibit 1: Joint Filing Agreement by and among the Reporting Persons (previously filed)
       
    Exhibit 2: Acquisition Proposal, dated November 24, 2023, sent from Concentra to the Issuer (previously filed)
       
    Exhibit 3:

    Agreement and Plan of Merger, dated December 22, 2023, by and among Theseus Pharmaceuticals, Inc., Concentra Biosciences, LLC and Concentra Merger Sub II, Inc. (incorporated by reference to Exhibit 2.1 to the Issuer’s Current Report on Form 8-K filed with the SEC on December 22, 2023) (previously filed)

       
    Exhibit 4: Schedule TO (incorporated by reference to that certain Schedule TO filed by Merger Sub with the SEC on January 9, 2024)
       
    Exhibit 5: Offer to Purchase, dated January 9, 2024 (incorporated by reference to Exhibit (a)(1)(A) to the Schedule TO filed by Merger Sub with the SEC on January 9, 2024)
       
    Exhibit 6: Form of Letter of Transmittal (incorporated by reference to Exhibit (a)(1)(B) to the Schedule TO filed by Merger Sub with the SEC on January 9, 2024)
       
    Exhibit 7:

    Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees (incorporated by reference to Exhibit (a)(1)(C) to the Schedule TO filed by Merger Sub with the SEC on January 9, 2024)

       
    Exhibit 8:

    Form of Letter to Clients for Use by Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees (incorporated by reference to Exhibit (a)(1)(D) to the Schedule TO filed by Merger Sub with the SEC on January 9, 2024)

       
    Exhibit 9:

    Mutual Confidentiality Agreement, dated November 30, 2023, by and among the Issuer, TCP and Concentra (incorporated by reference to Exhibit (d)(2) to the Schedule TO filed by Merger Sub with the SEC on January 9, 2024)

       
    Exhibit 10:

    Form of Contingent Value Rights Agreement (incorporated by reference to Exhibit (d)(3) to the Schedule TO filed by Merger Sub with the SEC on January 9, 2024)

       
    Exhibit 11: Limited Guaranty, dated December 22, 2023 (incorporated by reference to Exhibit (d)(4) to the Schedule TO filed by Merger Sub with the SEC on January 9, 2024)
       
    Exhibit 12: Joint Filing Agreement, dated January 11, 2024, by and among the Reporting Persons

     

     Page 7 of 8 Pages 
     

     

    SIGNATURE

     

    After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

     

     

    Date:

    January 11, 2024

     

     

    TANG CAPITAL PARTNERS, LP

     

    By: Tang Capital Management, LLC, its General Partner

     

    By: /s/ Kevin Tang  
      Kevin Tang, Manager  

     

    TANG CAPITAL MANAGEMENT, LLC

     

    By: /s/ Kevin Tang  
      Kevin Tang, Manager  

     

    /s/ Kevin Tang  
    Kevin Tang  

     

    CONCENTRA BIOSCIENCES, LLC

     

    By: /s/ Kevin Tang  
      Kevin Tang, Chief Executive Officer  

     

    CONCENTRA MERGER SUB II, INC.

     

    By: /s/ Kevin Tang  
    Kevin Tang, Chief Executive Officer  

     

     Page 8 of 8 Pages 
     

     

    Exhibit 12

     

    Joint Filing Agreement

     

    In accordance with Rule 13d-1(k) and Rule 16a-3(j) of the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the common stock, par value $0.0001, of Theseus Pharmaceuticals, Inc. This Agreement may be included as an Exhibit to such Schedule 13D.

     

    Each of the undersigned acknowledges that each shall be responsible for the timely filing of any statement (including amendments) on Schedule 13D, and for the completeness and accuracy of the information concerning him or it contained herein, but shall not be responsible for the completeness and accuracy of the information concerning the other persons making such filings, except to the extent that he or it knows or has reason to believe that such information is inaccurate.

     

     

    TANG CAPITAL PARTNERS, LP

    By: Tang Capital Management, LLC, its General Partner

     

    By: /s/ Kevin Tang  
      Kevin Tang, Manager  

     

    TANG CAPITAL MANAGEMENT, LLC

     

    By: /s/ Kevin Tang  
      Kevin Tang, Manager  

     

    /s/ Kevin Tang  
    Kevin Tang  

     

    CONCENTRA BIOSCIENCES, LLC

     

    By: /s/ Kevin Tang  
    Kevin Tang, Chief Executive Officer  

     

    CONCENTRA MERGER SUB II, INC.

     

    By: /s/ Kevin Tang  
    Kevin Tang, Chief Executive Officer  

     

     

     

     

     

     

    Get the next $THRX alert in real time by email

    Crush Q3 2025 with the Best AI Superconnector

    Stay ahead of the competition with Standout.work - your AI-powered talent-to-startup matching platform.

    AI-Powered Inbox
    Context-aware email replies
    Strategic Decision Support
    Get Started with Standout.work

    Recent Analyst Ratings for
    $THRX

    DatePrice TargetRatingAnalyst
    7/14/2023Buy → Hold
    Needham
    3/16/2023$24.00Buy
    Stifel
    12/14/2022$22.00Buy
    Needham
    6/30/2022$22.00Buy
    H.C. Wainwright
    11/1/2021$25.00Overweight
    Cantor Fitzgerald
    11/1/2021$24.00Outperform
    Wedbush
    11/1/2021$28.00Outperform
    SVB Leerink
    11/1/2021$23.00Buy
    Jefferies
    More analyst ratings

    $THRX
    Press Releases

    Fastest customizable press release news feed in the world

    View All

    Theseus Pharmaceuticals Announces Closing of Tender Offer

    -- Theseus Stockholders to Receive $4.05 Per Share in Cash Plus Contingent Value Right -- CAMBRIDGE, Mass., Feb. 14, 2024 /PRNewswire/ -- Theseus Pharmaceuticals, Inc. (NASDAQ:THRX) ("Theseus" or the "Company"), a clinical-stage biopharmaceutical company focused on improving the lives of cancer patients through the discovery, development, and commercialization of transformative targeted therapies, today announced that Concentra Biosciences, LLC ("Concentra") through its wholly owned subsidiary, Concentra Merger Sub II, Inc. ("Merger Sub"), has successfully completed the previously announced tender offer to acquire all outstanding shares of Theseus common stock for a price per share of (i) $4

    2/14/24 8:30:00 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Concentra Announces Calculation of Additional Price Per Share and Extension of Expiration Date for Tender Offer for Theseus Pharmaceuticals

    As previously announced on December 22, 2023, Concentra Biosciences, LLC ("Parent") and its wholly owned subsidiary, Concentra Merger Sub II, Inc. ("Purchaser"), entered into a merger agreement (the "Merger Agreement") with Theseus Pharmaceuticals, Inc. (NASDAQ:THRX) ("Theseus") whereby Purchaser will acquire Theseus for a price per share of Theseus common stock ("Theseus common stock") between $3.90 and $4.05 in cash, consisting of (i) a base cash price of $3.90 per share (the "Base Price") and (ii) an additional cash amount of up to $0.15 per share (the "Additional Price Per Share" and together with the Base Price, the "Cash Amount"), plus one non-tradeable contingent value right ("CVR")

    1/30/24 8:00:00 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Theseus Pharmaceuticals Enters into Agreement to Be Acquired by Concentra Biosciences for between $3.90 and $4.05 in Cash per Share Plus a Contingent Value Right

    CAMBRIDGE, Mass., Dec. 22, 2023 /PRNewswire/ -- Theseus Pharmaceuticals, Inc. (NASDAQ:THRX) ("Theseus" or the "Company"), a clinical-stage biopharmaceutical company focused on improving the lives of cancer patients through the discovery, development, and commercialization of transformative targeted therapies, today announced it has entered into a definitive merger agreement (the "Merger Agreement") whereby Concentra Biosciences, LLC ("Concentra") will acquire Theseus for a price per share of Theseus common stock ("Theseus common stock") of between $3.90 and $4.05 in cash, consisting of (i) a base cash price of $3.90 per share (the "Base Price") and (ii) an additional cash amount of not more

    12/22/23 6:30:00 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $THRX
    Analyst Ratings

    Analyst ratings in real time. Analyst ratings have a very high impact on the underlying stock. See them live in this feed.

    View All

    Theseus Pharmaceuticals downgraded by Needham

    Needham downgraded Theseus Pharmaceuticals from Buy to Hold

    7/14/23 7:53:00 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Stifel initiated coverage on Theseus Pharmaceuticals with a new price target

    Stifel initiated coverage of Theseus Pharmaceuticals with a rating of Buy and set a new price target of $24.00

    3/16/23 7:50:06 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Needham initiated coverage on Theseus Pharmaceuticals with a new price target

    Needham initiated coverage of Theseus Pharmaceuticals with a rating of Buy and set a new price target of $22.00

    12/14/22 8:16:12 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $THRX
    SEC Filings

    View All

    $THRX
    Insider Trading

    Insider transactions reveal critical sentiment about the company from key stakeholders. See them live in this feed.

    View All

    SEC Form 15-12G filed by Theseus Pharmaceuticals Inc.

    15-12G - Theseus Pharmaceuticals, Inc. (0001745020) (Filer)

    2/26/24 9:00:55 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form EFFECT filed by Theseus Pharmaceuticals Inc.

    EFFECT - Theseus Pharmaceuticals, Inc. (0001745020) (Filer)

    2/16/24 12:15:06 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form S-8 POS filed by Theseus Pharmaceuticals Inc.

    S-8 POS - Theseus Pharmaceuticals, Inc. (0001745020) (Filer)

    2/14/24 2:26:12 PM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 4 filed by Yi Kathy

    4 - Theseus Pharmaceuticals, Inc. (0001745020) (Issuer)

    2/14/24 4:03:57 PM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 4 filed by Stein Steven H

    4 - Theseus Pharmaceuticals, Inc. (0001745020) (Issuer)

    2/14/24 4:03:29 PM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form 4 filed by Orbimed Advisors Llc

    4 - Theseus Pharmaceuticals, Inc. (0001745020) (Issuer)

    2/14/24 4:02:14 PM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $THRX
    Leadership Updates

    Live Leadership Updates

    View All

    Theseus Pharmaceuticals Announces Business and Pipeline Highlights and Reports Third Quarter 2022 Financial Results

    All sites open and actively enrolling in Phase 1 portion of Phase 1/2 clinical trial of THE-630 in advanced GIST; preliminary dose escalation data expected in Q2 2023 Preclinical data characterizing THE-349 in EGFR-mutant NSCLC presented at 2022 EORTC-NCI-AACR Symposium; IND application submission expected in H2 2023 $221.0 million in cash, cash equivalents, and investments as of September 30, 2022; expected to fund operations into the fourth quarter of 2024 CAMBRIDGE, Mass., Nov. 3, 2022 /PRNewswire/ -- Theseus Pharmaceuticals, Inc. (NASDAQ:THRX) (Theseus or the Company), a clinical-stage biopharmaceutical company focused on improving the lives of cancer patients through the discovery, deve

    11/3/22 8:36:00 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Theseus Pharmaceuticals Appoints Steven Stein, M.D. to Board of Directors

    CAMBRIDGE, Mass., Oct. 19, 2022 /PRNewswire/ -- Theseus Pharmaceuticals, Inc. (NASDAQ:THRX) (Theseus or the Company), a clinical-stage biopharmaceutical company focused on improving the lives of cancer patients through the discovery, development, and commercialization of transformative targeted therapies, today announced the appointment of Steven Stein, M.D. to its Board of Directors.  "We are delighted to welcome Dr. Stein to the Theseus Board as we advance development of our THE-630 and THE-349 programs, while also expanding our early-stage pipeline," said Tim Clackson, Ph.D., President and Chief Executive Officer of Theseus. "Dr. Stein's depth and breadth of oncology expertise, and extens

    10/19/22 7:00:00 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    Theseus Pharmaceuticals Announces Business and Pipeline Highlights and Reports Second Quarter 2022 Financial Results

    THE-630 Phase 1/2 clinical trial enrolling patients; initial data expected in Q2 2023 Nomination of development candidate for fourth-generation epidermal growth factor receptor (EGFR) inhibitor program expected in Q3 2022; IND expected in 2023 $228.6 million in cash, cash equivalents, and investments as of June 30, 2022; expected to fund operations into the fourth quarter of 2024 CAMBRIDGE, Mass., Aug. 11, 2022 /PRNewswire/ -- Theseus Pharmaceuticals, Inc. (NASDAQ:THRX) (Theseus or the Company), a clinical-stage biopharmaceutical company focused on improving the lives of cancer patients through the discovery, development, and commercialization of transformative targeted therapies, today anno

    8/11/22 7:00:00 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    $THRX
    Large Ownership Changes

    This live feed shows all institutional transactions in real time.

    View All

    SEC Form SC 13D/A filed by Theseus Pharmaceuticals Inc. (Amendment)

    SC 13D/A - Theseus Pharmaceuticals, Inc. (0001745020) (Subject)

    2/16/24 4:00:31 PM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form SC 13G/A filed by Theseus Pharmaceuticals Inc. (Amendment)

    SC 13G/A - Theseus Pharmaceuticals, Inc. (0001745020) (Subject)

    2/13/24 12:36:57 PM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care

    SEC Form SC 13D/A filed by Theseus Pharmaceuticals Inc. (Amendment)

    SC 13D/A - Theseus Pharmaceuticals, Inc. (0001745020) (Subject)

    1/12/24 6:02:17 AM ET
    $THRX
    Biotechnology: Pharmaceutical Preparations
    Health Care