UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED

PURSUANT TO RULE 13d-2(b)

(Amendment No. 1)1

 

Delcath Systems, Inc.

 (Name of Issuer)

Common Stock, $0.01 par value per share

 (Title of Class of Securities)

24661P807

 (CUSIP Number)

December 31, 2023

 (Date of Event Which Requires Filing of this Statement)

 

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

   ☐  Rule 13d-1(b)

   ☒  Rule 13d-1(c)

   ☐  Rule 13d-1(d)

 

 

 

1              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 disclosures provided in a prior cover page.

The information required on 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. 24661P807

 

  1   NAME OF REPORTING PERSON  
         
        Biotechnology Value Fund, L.P.  
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☒
        (b) ☐
           
  3   SEC USE ONLY    
           
             
  4   CITIZENSHIP OR PLACE OF ORGANIZATION  
         
        Delaware  
NUMBER OF   5   SOLE VOTING POWER  
SHARES          
BENEFICIALLY         0  
OWNED BY   6   SHARED VOTING POWER  
EACH          
REPORTING         1,433,024 (1)  
PERSON WITH   7   SOLE DISPOSITIVE POWER  
         
          0  
    8   SHARED DISPOSITIVE POWER  
           
          1,433,024 (1)  
  9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON  
         
        1,433,024 (1)  
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     ☐
       
           
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)  
         
        6.2% (1)  
  12   TYPE OF REPORTING PERSON  
         
        PN  

  

(1) Includes 519,111 Shares (as defined below) underlying certain Series F-3 Preferred Stock (as defined below) and 393,833 Shares underlying certain Series F-4 Preferred Stock (as defined below).

2

CUSIP No. 24661P807

  1   NAME OF REPORTING PERSON  
         
        BVF I GP LLC  
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☒
        (b) ☐
           
  3   SEC USE ONLY    
           
             
  4   CITIZENSHIP OR PLACE OF ORGANIZATION  
         
        Delaware  
NUMBER OF   5   SOLE VOTING POWER  
SHARES          
BENEFICIALLY         0  
OWNED BY   6   SHARED VOTING POWER  
EACH          
REPORTING         1,433,024 (1)  
PERSON WITH   7   SOLE DISPOSITIVE POWER  
         
          0  
    8   SHARED DISPOSITIVE POWER  
           
          1,433,024 (1)  
  9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON  
         
        1,433,024 (1)  
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     ☐
       
           
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)  
         
        6.2% (1)  
  12   TYPE OF REPORTING PERSON  
         
        OO  

  

(1) Includes 519,111 Shares underlying certain Series F-3 Preferred Stock and 393,833 Shares underlying certain Series F-4 Preferred Stock.

3

CUSIP No. 24661P807

 

  1   NAME OF REPORTING PERSON  
         
        Biotechnology Value Fund II, L.P.  
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☒
        (b) ☐
           
  3   SEC USE ONLY    
           
             
  4   CITIZENSHIP OR PLACE OF ORGANIZATION  
         
        Delaware  
NUMBER OF   5   SOLE VOTING POWER  
SHARES          
BENEFICIALLY         0  
OWNED BY   6   SHARED VOTING POWER  
EACH          
REPORTING         790,282 (1)  
PERSON WITH   7   SOLE DISPOSITIVE POWER  
         
          0  
    8   SHARED DISPOSITIVE POWER  
           
          790,282 (1)  
  9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON  
         
        790,282 (1)  
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     ☐
       
           
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)  
         
        3.5% (1)  
  12   TYPE OF REPORTING PERSON  
         
        PN  

  

(1) Includes 394,222 Shares underlying certain Series F-3 Preferred Stock.

4

CUSIP No. 24661P807

 

  1   NAME OF REPORTING PERSON  
         
        BVF II GP LLC  
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☒
        (b) ☐
           
  3   SEC USE ONLY    
           
             
  4   CITIZENSHIP OR PLACE OF ORGANIZATION  
         
        Delaware  
NUMBER OF   5   SOLE VOTING POWER  
SHARES          
BENEFICIALLY         0  
OWNED BY   6   SHARED VOTING POWER  
EACH          
REPORTING         790,282 (1)  
PERSON WITH   7   SOLE DISPOSITIVE POWER  
         
          0  
    8   SHARED DISPOSITIVE POWER  
           
          790,282 (1)  
  9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON  
         
        790,282 (1)  
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     ☐
       
           
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)  
         
        3.5% (1)  
  12   TYPE OF REPORTING PERSON  
         
        OO  

  

(1) Includes 394,222 Shares underlying certain Series F-3 Preferred Stock.

5

CUSIP No. 24661P807

 

  1   NAME OF REPORTING PERSON  
         
        Biotechnology Value Trading Fund OS LP  
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☒
        (b) ☐
           
  3   SEC USE ONLY    
           
             
  4   CITIZENSHIP OR PLACE OF ORGANIZATION  
         
        Cayman Islands  
NUMBER OF   5   SOLE VOTING POWER  
SHARES          
BENEFICIALLY         0  
OWNED BY   6   SHARED VOTING POWER  
EACH          
REPORTING         90,229 (1)  
PERSON WITH   7   SOLE DISPOSITIVE POWER  
         
          0  
    8   SHARED DISPOSITIVE POWER  
           
          90,229 (1)  
  9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON  
         
        90,229 (1)  
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     ☐
       
           
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)  
         
        Less than 1% (1)  
  12   TYPE OF REPORTING PERSON  
         
        PN  

  

(1) Includes 44,222 Shares underlying certain Series F-3 Preferred Stock.

6

CUSIP No. 24661P807

 

  1   NAME OF REPORTING PERSON  
         
        BVF Partners OS Ltd.  
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☒
        (b) ☐
           
  3   SEC USE ONLY    
           
             
  4   CITIZENSHIP OR PLACE OF ORGANIZATION  
         
        Cayman Islands  
NUMBER OF   5   SOLE VOTING POWER  
SHARES          
BENEFICIALLY         0  
OWNED BY   6   SHARED VOTING POWER  
EACH          
REPORTING         90,229 (1)  
PERSON WITH   7   SOLE DISPOSITIVE POWER  
         
          0  
    8   SHARED DISPOSITIVE POWER  
           
          90,229 (1)  
  9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON  
         
        90,229 (1)  
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     ☐
       
           
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)  
         
        Less than 1% (1)  
  12   TYPE OF REPORTING PERSON  
         
        CO  

  

(1) Includes 44,222 Shares underlying certain Series F-3 Preferred Stock.

7

CUSIP No. 24661P807

 

  1   NAME OF REPORTING PERSON  
         
        BVF GP Holdings LLC  
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☒
        (b) ☐
           
  3   SEC USE ONLY    
           
             
  4   CITIZENSHIP OR PLACE OF ORGANIZATION  
         
        Delaware  
NUMBER OF   5   SOLE VOTING POWER  
SHARES          
BENEFICIALLY         0  
OWNED BY   6   SHARED VOTING POWER  
EACH          
REPORTING         2,223,306 (1)  
PERSON WITH   7   SOLE DISPOSITIVE POWER  
         
          0  
    8   SHARED DISPOSITIVE POWER  
           
          2,223,306 (1)  
  9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON  
         
        2,223,306 (1)  
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     ☐
       
           
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)  
         
        9.5% (1)  
  12   TYPE OF REPORTING PERSON  
         
        OO  

  

(1) Includes 913,333 Shares underlying certain Series F-3 Preferred Stock and 393,833 Shares underlying certain Series F-4 Preferred Stock.

 

8

CUSIP No. 24661P807

 

  1   NAME OF REPORTING PERSON  
         
        BVF Partners L.P.  
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☒
        (b) ☐
           
  3   SEC USE ONLY    
           
             
  4   CITIZENSHIP OR PLACE OF ORGANIZATION  
         
        Delaware  
NUMBER OF   5   SOLE VOTING POWER  
SHARES          
BENEFICIALLY         0  
OWNED BY   6   SHARED VOTING POWER  
EACH          
REPORTING         2,338,426 (1)  
PERSON WITH   7   SOLE DISPOSITIVE POWER  
         
          0  
    8   SHARED DISPOSITIVE POWER  
           
          2,338,426 (1)  
  9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON  
         
        2,338,426 (1)  
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     ☐
       
           
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)  
         
        9.99% (1)  
  12   TYPE OF REPORTING PERSON  
         
        PN, IA  

  

(1) Includes 968,444 Shares underlying certain Series F-3 Preferred Stock and 393,833 Shares underlying certain Series F-4 Preferred Stock.

 

9

CUSIP No. 24661P807

 

  1   NAME OF REPORTING PERSON  
         
        BVF Inc.  
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☒
        (b) ☐
           
  3   SEC USE ONLY    
           
             
  4   CITIZENSHIP OR PLACE OF ORGANIZATION  
         
        Delaware  
NUMBER OF   5   SOLE VOTING POWER  
SHARES          
BENEFICIALLY         0  
OWNED BY   6   SHARED VOTING POWER  
EACH          
REPORTING         2,338,426 (1)  
PERSON WITH   7   SOLE DISPOSITIVE POWER  
         
          0  
    8   SHARED DISPOSITIVE POWER  
           
          2,338,426 (1)  
  9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON  
         
        2,338,426 (1)  
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     ☐
       
           
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)  
         
        9.99% (1)  
  12   TYPE OF REPORTING PERSON  
         
        CO  

  

(1) Includes 968,444 Shares underlying certain Series F-3 Preferred Stock and 393,833 Shares underlying certain Series F-4 Preferred Stock.

10

CUSIP No. 24661P807

 

  1   NAME OF REPORTING PERSON  
         
        Mark N. Lampert  
  2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (a) ☒
        (b) ☐
           
  3   SEC USE ONLY    
           
             
  4   CITIZENSHIP OR PLACE OF ORGANIZATION  
         
        United States  
NUMBER OF   5   SOLE VOTING POWER  
SHARES          
BENEFICIALLY         0  
OWNED BY   6   SHARED VOTING POWER  
EACH          
REPORTING         2,338,426 (1)  
PERSON WITH   7   SOLE DISPOSITIVE POWER  
         
          0  
    8   SHARED DISPOSITIVE POWER  
           
          2,338,426 (1)  
  9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON  
         
        2,338,426 (1)  
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES     ☐
       
           
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)  
         
        9.99% (1)  
  12   TYPE OF REPORTING PERSON  
         
        IN  

  

(1) Includes 968,444 Shares underlying certain Series F-3 Preferred Stock and 393,833 Shares underlying certain Series F-4 Preferred Stock.

11

CUSIP No. 24661P807

 

Item 1(a).Name of Issuer:

 

Delcath Systems, Inc., a Delaware corporation (the “Issuer”).

 

Item 1(b).Address of Issuer’s Principal Executive Offices:

 

1633 Broadway, Suite 22C

New York, New York 10019

 

Item 2(a).Name of Person Filing
Item 2(b).Address of Principal Business Office or, if None, Residence
Item 2(c).Citizenship

 

Biotechnology Value Fund, L.P. (“BVF”)

44 Montgomery St., 40th Floor

San Francisco, California 94104

Citizenship: Delaware

 

BVF I GP LLC (“BVF GP”)

44 Montgomery St., 40th Floor

San Francisco, California 94104

Citizenship: Delaware

 

Biotechnology Value Fund II, L.P. (“BVF2”)

44 Montgomery St., 40th Floor

San Francisco, California 94104

Citizenship: Delaware

 

BVF II GP LLC (“BVF2 GP”)

44 Montgomery St., 40th Floor

San Francisco, California 94104

Citizenship: Delaware

 

Biotechnology Value Trading Fund OS LP (“Trading Fund OS”)

PO Box 309 Ugland House

Grand Cayman, KY1-1104

Cayman Islands

Citizenship: Cayman Islands

 

BVF Partners OS Ltd. (“Partners OS”)

PO Box 309 Ugland House

Grand Cayman, KY1-1104

Cayman Islands

Citizenship: Cayman Islands

 

BVF GP Holdings LLC (“BVF GPH”)

44 Montgomery St., 40th Floor

San Francisco, California 94104

Citizenship: Delaware

 

BVF Partners L.P. (“Partners”)

44 Montgomery St., 40th Floor

San Francisco, California 94104

Citizenship: Delaware

12

CUSIP No. 24661P807

 

BVF Inc.

44 Montgomery St., 40th Floor

San Francisco, California 94104

Citizenship: Delaware

 

Mark N. Lampert (“Mr. Lampert”)

44 Montgomery St., 40th Floor

San Francisco, California 94104

Citizenship: United States

 

Each of the foregoing is referred to as a “Reporting Person” and collectively as the “Reporting Persons.”

 

Item 2(d).Title of Class of Securities:

 

Common Stock, $0.01 par value per share (the “Shares”).

 

Item 2(e).CUSIP Number:

 

24661P807

 

Item 3.If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check Whether the Person Filing is a:

 

    /x/ Not applicable.
       
  (a) / / Broker or dealer registered under Section 15 of the Exchange Act.
       
  (b) / / Bank as defined in Section 3(a)(6) of the Exchange Act.
       
  (c) / / Insurance company as defined in Section 3(a)(19) of the Exchange Act.
       
  (d) / / Investment company registered under Section 8 of the Investment Company Act.
       
  (e) / / An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E).
       
  (f) / / An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F).
       
  (g) / / A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G).
       
  (h) / / A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act.
       
  (i) / / A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act.
       
  (j) / / A non-U.S. institution, in accordance with Rule 13d-1(b)(1)(ii)(J).
       
  (k) / / Group, in accordance with Rule 13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J), please specify the type of institution: ____

 

13

CUSIP No. 24661P807

Item 4.Ownership

 

(a)Amount beneficially owned:

 

As of the close of business on December 31, 2023, the Reporting Persons and a certain Partners managed account (the “Partners Managed Account”) held an aggregate of 4,358 shares of Series F-3 Convertible Preferred Stock (the “Series F-3 Preferred Stock”), convertible into an aggregate of 968,444 Shares at a conversion price of $4.50 per Share. A holder of the Series F-3 Preferred Stock shall not have the right to convert any portion of the Series F-3 Preferred Stock and such Series F-3 Preferred Stock shall not be automatically converted, to the extent that after giving effect to such conversion, such holder thereof, together with its affiliates, any other persons acting as a group together, and any other persons whose beneficial ownership of Shares would be aggregated with such holder and the other attribution parties for purposes of Section 13(d) of the Securities Exchange Act of 1934 (the “Exchange Act”) would beneficially own in excess of 9.99% of the Shares outstanding immediately after giving effect to such conversion, excluding for purposes of such determination Shares which would be issuable upon conversion of the remaining, unconverted portion of all series of Series F Convertible Preferred Stock of the Issuer beneficially owned (the “Beneficial Ownership Limitation”). As of the close of business on December 31, 2023, the Beneficial Ownership Limitation does not limit the conversion of any of the Series F-3 Preferred Stock held by the Reporting Persons and the Partners Managed Account.

 

As of the close of business on December 31, 2023, the Reporting Persons held preferred stock tranche B warrants (the “Tranche B Warrants”), exercisable into an aggregate of 6,250 shares of Series F-4 Convertible Preferred Stock (the “Series F-4 Preferred Stock”), which in turn are convertible into an aggregate of 1,041,667 Shares at a conversion price of $6.00 per Share. The Tranche B Warrants are exercisable at any time, have an exercise price of $1,000 per share of Series F-4 Preferred Stock, and expire on the earlier of (i) twenty-one (21) days following the date of the Issuer’s public announcement of recording at least $10,000,000 in quarterly U.S. revenue from the commercialization of HEPZATO and (ii) March 31, 2026. The conversion of the shares of Series F-4 Preferred Stock underlying the Tranche B Warrants are subject to the Beneficial Ownership Limitation. As of the close of business on December 31, 2023, assuming all the Tranche B Warrants held in the aggregate by the Reporting Persons and the Partners Managed Account were exercised for Series F-4 Preferred Stock, the Beneficial Ownership Limitation limits the conversion of the Series F-4 Preferred Stock held by the Reporting Persons and the Partners Managed Account to 393,833 out of the 1,041,667 Shares underlying the Series F-4 Preferred Stock held by them.

14

CUSIP No. 24661P807

 

As of the close of business on December 31, 2023, (i) BVF beneficially owned 1,433,024 Shares, including (a) 519,111 Shares underlying the Series F-3 Preferred Stock, and (b) 393,833 Shares underlying certain Series F-4 Preferred Stock, which in turn are underlying certain Tranche B Warrants held by it, and excluding 167,333 Shares underlying certain Series F-4 Preferred Stock, which in turn are underlying certain Tranche B Warrants held by it, (ii) BVF2 beneficially owned 790,282 Shares, including 394,222 Shares underlying the Series F-3 Preferred Stock held by it, and excluding 127,667 Shares underlying the Series F-4 Preferred Stock, which in turn are underlying the Tranche B Warrants held by it, and (iii) Trading Fund OS beneficially owned 90,229 Shares, including 44,222 Shares underlying the Series F-3 Preferred Stock held by it, and excluding 15,167 Shares underlying the Series F-4 Preferred Stock, which in turn are underlying the Tranche B Warrants held by it.

 

BVF GP, as the general partner of BVF, may be deemed to beneficially own the 1,433,024 Shares beneficially owned by BVF.

 

BVF2 GP, as the general partner of BVF2, may be deemed to beneficially own the 790,282 Shares beneficially owned by BVF2.

 

Partners OS, as the general partner of Trading Fund OS, may be deemed to beneficially own the 90,229 Shares beneficially owned by Trading Fund OS.

 

BVF GPH, as the sole member of each of BVF GP and BVF2 GP, may be deemed to beneficially own the 2,223,306 Shares beneficially owned in the aggregate by BVF and BVF2.

 

Partners, as the investment manager of BVF, BVF2 and Trading Fund OS, and the sole member of Partners OS, may be deemed to beneficially own the 2,338,426 Shares beneficially owned in the aggregate by BVF, BVF2 and Trading Fund OS and held in the Partners Managed Account, including 24,891 Shares held in the Partners Managed Account, including 10,889 Shares underlying the Series F-3 Preferred Stock held in the Partners Managed Account, and excluding 5,167 Shares underlying the Series F-4 Preferred Stock, which in turn are underlying the Tranche B Warrants held in the Partners Managed Account.

 

BVF Inc., as the general partner of Partners, may be deemed to beneficially own the 2,338,426 Shares beneficially owned by Partners.

 

Mr. Lampert, as a director and officer of BVF Inc., may be deemed to beneficially own the 2,338,426 Shares beneficially owned by BVF Inc.

 

The foregoing should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of any Shares owned by another Reporting Person. BVF GP disclaims beneficial ownership of the Shares beneficially owned by BVF. BVF2 GP disclaims beneficial ownership of the Shares beneficially owned by BVF2. Partners OS disclaims beneficial ownership of the Shares beneficially owned by Trading Fund OS. BVF GPH disclaims beneficial ownership of the Shares beneficially owned by BVF and BVF2. Each of Partners, BVF Inc. and Mr. Lampert disclaims beneficial ownership of the Shares beneficially owned by BVF, BVF2 and Trading Fund OS and held in the Partners Managed Account, and the filing of this statement shall not be construed as an admission that any such person or entity is the beneficial owner of any such securities.

15

CUSIP No. 24661P807

 

(b)Percent of class:

 

The following percentages are based upon a denominator that is the sum of (i) 22,046,101 Shares outstanding as of November 8, 2023, which is the total number of Shares outstanding as reported in the Issuer’s Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on November 13, 2023, (ii) certain or all of the 968,444 Shares issuable upon the conversion of the Series F-3 Preferred Stock, as applicable, and (iii) 393,833 Shares issuable upon the conversion of certain Series F-4 Preferred Stock, as applicable.

 

As of the close of business on December 31, 2023, (i) BVF beneficially owned approximately 6.2% of the outstanding Shares, (ii) BVF2 beneficially owned approximately 3.5% of the outstanding Shares, (iii) Trading Fund OS beneficially owned less than 1% of the outstanding Shares, (iv) BVF GP may be deemed to beneficially own approximately 6.2% of the outstanding Shares, (v) BVF2 GP may be deemed to beneficially own approximately 3.5% of the outstanding Shares, (vi) Partners OS may be deemed to beneficially own less than 1% of the outstanding Shares, (vii) BVF GPH may be deemed to beneficially own approximately 9.5% of the outstanding Shares, and (viii) each of Partners, BVF Inc. and Mr. Lampert may be deemed to beneficially own approximately 9.99% of the outstanding Shares (less than 1% of the outstanding Shares are represented by Shares held in the Partners Managed Account).

 

(c)Number of shares as to which such person has:

 

(i)Sole power to vote or to direct the vote

 

See Cover Pages Items 5-9.

 

(ii)Shared power to vote or to direct the vote

 

See Cover Pages Items 5-9.

 

(iii)Sole power to dispose or to direct the disposition of

 

See Cover Pages Items 5-9.

 

(iv)Shared power to dispose or to direct the disposition of

 

See Cover Pages Items 5-9.

 

Item 5.Ownership of Five Percent or Less of a Class.

 

Not Applicable.

 

Item 6.Ownership of More than Five Percent on Behalf of Another Person.

 

BVF GP, BVF GPH, Partners, BVF Inc. and Mr. Lampert share voting and dispositive power over the Shares beneficially owned by BVF. BVF GPH, Partners, BVF Inc. and Mr. Lampert share voting and dispositive power over the Shares beneficially owned by BVF2. Partners, BVF Inc. and Mr. Lampert share voting and dispositive power over the Shares beneficially owned by Trading Fund OS and the Shares held in the Partners Managed Account.

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CUSIP No. 24661P807

 

Item 7.Identification and Classification of the Subsidiary That Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

 

Not Applicable.

 

Item 8.Identification and Classification of Members of the Group.

 

See Exhibit 99.1 to the Schedule 13G filed with the Securities and Exchange Commission on June 22, 2023.

 

Item 9.Notice of Dissolution of Group.

 

Not Applicable.

 

Item 10.Certifications.

 

By signing below each of the undersigned certifies that, to the best of its knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

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CUSIP No. 24661P807

 

SIGNATURE

 

After reasonable inquiry and to the best of his knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true, complete and correct.

 

Dated: February 14, 2024

 

BIOTECHNOLOGY VALUE FUND, L.P.   BIOTECHNOLOGY VALUE TRADING FUND OS LP
       
By: BVF I GP LLC, its general partner   By: BVF Partners L.P., its investment manager
      By: BVF Inc., its general partner
By:

/s/ Mark N. Lampert

      
  Mark N. Lampert   By: /s/ Mark N. Lampert
  Chief Executive Officer     Mark N. Lampert
        President
         
BVF I GP LLC      
      BVF GP HOLDINGS LLC
By: /s/ Mark N. Lampert    
  Mark N. Lampert   By: /s/ Mark N. Lampert
  Chief Executive Officer     Mark N. Lampert
        Chief Executive Officer
         
BIOTECHNOLOGY VALUE FUND II, L.P.    
      BVF PARTNERS L.P.
By: BVF II GP LLC, its general partner    
      By: BVF Inc., its general partner
By:

/s/ Mark N. Lampert

      
  Mark N. Lampert   By: /s/ Mark N. Lampert
  Chief Executive Officer     Mark N. Lampert
        President
         
BVF II GP LLC      
      BVF INC.
By: /s/ Mark N. Lampert    
  Mark N. Lampert   By: /s/ Mark N. Lampert
  Chief Executive Officer     Mark N. Lampert
        President
         
BVF PARTNERS OS LTD.      
      /s/ Mark N. Lampert
By: BVF Partners L.P., its sole member   MARK N. LAMPERT
By: BVF Inc., its general partner    
         
By:

/s/ Mark N. Lampert

    
  Mark N. Lampert    
  President      

 

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