Soleus Capital Master Fund SC 13G C4 Therapeutics / Soleus Capital Master Fund ownership change

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No.    )*

C4 THERAPEUTICS, INC.

(Name of Issuer)

Common Stock, $0.0001 par value per share

(Title of Class of Securities)

12529R107

(CUSIP Number)

April 13, 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)

* 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. 12529R107

1	NAMES OF REPORTING PERSONS   I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)   Soleus Capital Master Fund, L.P.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)   (a)  ☐        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION   Cayman Islands

NUMBER OF SHARES  BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH:	5	SOLE VOTING POWER   0
	6	SHARED VOTING POWER   2,462,020 (1)
	7	SOLE DISPOSITIVE POWER   0
	8	SHARED DISPOSITIVE POWER   2,462,020 (1)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON   2,462,020 (1)
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)   ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)    5.0% (2)
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)    FI

FOOTNOTES

(1) The shares of common stock reported in this row are held by Soleus Capital Master Fund, L.P. (“Master Fund”). Soleus Capital, LLC is the sole general partner of Master Fund and thus holds voting and dispositive power over the shares held by Master Fund. Soleus Capital Group, LLC is the sole managing member of Soleus Capital, LLC. Mr. Guy Levy is the sole managing member of Soleus Capital Group, LLC. Each of Soleus Capital Group, LLC, Soleus Capital, LLC and Mr. Guy Levy disclaims beneficial ownership of these securities held by Master Fund and this report shall not be deemed an admission that they are the beneficial owners of such securities for purposes of Section 13(d) of the Exchange Act, or for any other purpose, except to the extent of their respective pecuniary interests therein.

(2) This percentage is calculated based upon 49,050,851 shares of common stock outstanding of the Issuer as of February 15, 2023, as disclosed in the Issuer’s Annual Report on Form 10-K for the annual period ended December 31, 2022 that was filed with the Securities and Exchange Commission on February 23, 2023 (the “Form 10-K”).

CUSIP NO. 12529R107

1	NAMES OF REPORTING PERSONS   I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)   Soleus Capital, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)   (a)  ☐        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION   Delaware

NUMBER OF SHARES  BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH:	5	SOLE VOTING POWER   0
	6	SHARED VOTING POWER   2,462,020 (1)
	7	SOLE DISPOSITIVE POWER   0
	8	SHARED DISPOSITIVE POWER   2,462,020 (1)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON   2,462,020 (1)
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)   ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)    5.0% (2)
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)    OO

FOOTNOTES

(1) The shares of common stock reported in this row are held by Master Fund. Soleus Capital, LLC is the sole general partner of Master Fund and thus holds voting and dispositive power over the shares held by Master Fund. Soleus Capital Group, LLC is the sole managing member of Soleus Capital, LLC. Mr. Guy Levy is the sole managing member of Soleus Capital Group, LLC. Each of Soleus Capital Group, LLC, Soleus Capital, LLC and Mr. Guy Levy disclaims beneficial ownership of these securities held by Master Fund and this report shall not be deemed an admission that they are the beneficial owners of such securities for purposes of Section 13(d) of the Exchange Act, or for any other purpose, except to the extent of their respective pecuniary interests therein.

(2) This percentage is calculated based upon 49,050,851 shares of common stock outstanding of the Issuer as of February 15, 2023, as reported in the Form 10-K.

CUSIP NO. 12529R107

1	NAMES OF REPORTING PERSONS   I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)   Soleus Capital Group, LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)   (a)  ☐        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION   Delaware

NUMBER OF SHARES  BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH:	5	SOLE VOTING POWER   0
	6	SHARED VOTING POWER   2,462,020 (1)
	7	SOLE DISPOSITIVE POWER   0
	8	SHARED DISPOSITIVE POWER   2,462,020 (1)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON   2,462,020 (1)
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)   ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)    5.0% (2)
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)    OO

FOOTNOTES

(1) The shares of common stock reported in this row are held by Master Fund. Soleus Capital, LLC is the sole general partner of Master Fund and thus holds voting and dispositive power over the shares held by Master Fund. Soleus Capital Group, LLC is the sole managing member of Soleus Capital, LLC. Mr. Guy Levy is the sole managing member of Soleus Capital Group, LLC. Each of Soleus Capital Group, LLC, Soleus Capital, LLC and Mr. Guy Levy disclaims beneficial ownership of these securities held by Master Fund and this report shall not be deemed an admission that they are the beneficial owners of such securities for purposes of Section 13(d) of the Exchange Act, or for any other purpose, except to the extent of their respective pecuniary interests therein.

(2) This percentage is calculated based upon 49,050,851 shares of common stock outstanding of the Issuer as of February 15, 2023, as reported in the Form 10-K.

CUSIP NO. 12529R107

1	NAMES OF REPORTING PERSONS   I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)   Guy Levy
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)   (a)  ☐        (b)  ☐
3	SEC USE ONLY
4	CITIZENSHIP OR PLACE OF ORGANIZATION   United States

NUMBER OF SHARES  BENEFICIALLY  OWNED BY EACH REPORTING PERSON WITH:	5	SOLE VOTING POWER   0
	6	SHARED VOTING POWER   2,462,020 (1)
	7	SOLE DISPOSITIVE POWER   0
	8	SHARED DISPOSITIVE POWER   2,462,020 (1)

9	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON   2,462,020 (1)
10	CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)   ☐
11	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)   5.0% (2)
12	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)   IN

FOOTNOTES

(1) The shares of common stock reported in this row are held by Master Fund. Soleus Capital, LLC is the sole general partner of Master Fund and thus holds voting and dispositive power over the shares held by Master Fund. Soleus Capital Group, LLC is the sole managing member of Soleus Capital, LLC. Mr. Guy Levy is the sole managing member of Soleus Capital Group, LLC. Each of Soleus Capital Group, LLC, Soleus Capital, LLC and Mr. Guy Levy disclaims beneficial ownership of these securities held by Master Fund and this report shall not be deemed an admission that they are the beneficial owners of such securities for purposes of Section 13(d) of the Exchange Act, or for any other purpose, except to the extent of their respective pecuniary interests therein.

(2) This percentage is calculated based upon 49,050,851 shares of common stock outstanding of the Issuer as of February 15, 2023, as reported in the Form 10-K.

Item 1.

(a) Name of Issuer

C4 Therapeutics, Inc.

(b) Address of Issuer’s Principal Executive Offices

409 Arsenal Way, Suite 120

Watertown, MA 02472

Item 2.

(a) Name of Person(s) Filing

Soleus Capital Master Fund, L.P.

Soleus Capital, LLC

Soleus Capital Group, LLC

Guy Levy

(b) Address of Principal Business Office or, if none, Residence

Soleus Capital Master Fund, L.P.

104 Field Point Road, 2^nd Floor

Greenwich, CT 06830

Soleus Capital, LLC

104 Field Point Road, 2^nd Floor

Greenwich, CT 06830

Soleus Capital Group, LLC

104 Field Point Road, 2^nd Floor

Greenwich, CT 06830

Guy Levy

c/o Soleus Capital Management, L.P

104 Field Point Road, 2^nd Floor

Greenwich, CT 06830

(c) Citizenship

Soleus Capital Master Fund, L.P. – Cayman Islands

Soleus Capital, LLC – Delaware

Soleus Capital Group, LLC – Delaware

Guy Levy – United States

(d) Title of Class of Securities

Common Stock, $0.0001 par value per share

(e) CUSIP Number

12529R107

Item 3. If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)	☐	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).
(b)	☐	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
(c)	☐	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. ☐78c).
(d)	☐	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8).
(e)	☐	An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);
(f)	☐	An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);
(g)	☐	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	☐	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	☐	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	☐	A non-U.S. institution in accordance with §240.13d-1(b)(1)(ii)(J).
(k)	☐	Group, in accordance with §240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with §240.13d-1(b)(1)(ii)(J), please specify the type of institution:

Item 4. Ownership.

Reference is made to Items 5 – 11 on the preceding pages of this Schedule 13G.

Master Fund held, as of the close of business on April 13, 2023, an aggregate of 2,462,020 shares of the common stock of the Issuer. As the general partner of Master Fund, Soleus Capital, LLC may be deemed to have shared power to vote or to direct the vote and to dispose or to direct the disposition of the shares held by Master Fund. As the sole managing member of Soleus Capital, LLC, Soleus Capital Group, LLC may be deemed to have shared power to vote or to direct the vote and to dispose or to direct the disposition of the shares held by Master Fund. As the sole managing member of Soleus Capital Group, LLC, Mr. Guy Levy may be deemed to have shared power to vote or direct the vote and to dispose or to direct the disposition of the Shares held by Master Fund.

Neither the filing of this Schedule 13G nor any of its contents shall be deemed to constitute an admission that Mr. Levy, Soleus Capital, LLC or Soleus Capital Group, LLC is the beneficial owner of the shares of the common stock of the Issuer referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed, except to the extent of their respective pecuniary interests therein.

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.

Not applicable.

Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company

Not applicable.

Item 8. Identification and Classification of Members of the Group

Not applicable.

Item 9. Notice of Dissolution of Group

Not applicable.

Item 10. Certification

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose, 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.

SIGNATURE

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

Date: April 14, 2023	Soleus Capital Master Fund, L.P.
	By:	Soleus Capital, LLC, its General Partner
	By:	Soleus Capital Group, LLC, its Managing Manager
	By:	/s/ Guy Levy
	Name:	Guy Levy
	Title:	Managing Member
Date: April 14, 2023	Soleus Capital, LLC
	By:	Soleus Capital Group, LLC, its Managing Manager
	By:	/s/ Guy Levy
	Name:	Guy Levy
	Title:	Managing Member
Date: April 14, 2023	Soleus Capital Group, LLC
	By:	/s/ Guy Levy
	Name:	Guy Levy
	Title:	Managing Member
Date: April 14, 2023	/s/ Guy Levy
	Name: Guy Levy

Footnotes:

Attention: Intentional misstatements or omissions of fact constitute Federal criminal violations (See 18 U.S.C. 1001)