Cerus Corporation is the subject of an amended Schedule 13G filing by Soleus Capital Master Fund, L.P. and related entities, including Guy Levy. The group reports beneficial ownership of 2,500,000 shares of Cerus common stock, representing 1.2% of the outstanding shares, based on 201,524,898 shares outstanding as of July 16, 2026. All 2,500,000 shares are reported with shared voting and shared dispositive power and no sole voting or dispositive power. The reporting persons state that the shares are held directly by Soleus Capital Master Fund, L.P. and that the affiliated entities and Mr. Levy disclaim beneficial ownership except for purposes of Section 13(d). The filing also confirms that the group now holds 5% or less of the Cerus common stock class.
Positive
None.
Negative
None.
Key Figures
Shares beneficially owned:2,500,000 sharesOwnership percentage:1.2%Shares outstanding:201,524,898 shares+2 more
5 metrics
Shares beneficially owned2,500,000 sharesCerus common stock reported by Soleus Capital group
Ownership percentage1.2%Portion of Cerus common stock class held by reporting group
Shares outstanding201,524,898 sharesCerus common stock outstanding as of July 16, 2026
Shared voting power2,500,000 sharesShares over which the group has shared voting power
Shared dispositive power2,500,000 sharesShares over which the group has shared power to dispose
Key Terms
beneficial ownership, shared voting power, shared dispositive power, Section 13(d) of the Securities Exchange Act of 1934, +1 more
5 terms
beneficial ownershipfinancial
"Each of SCG, Soleus Capital, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
shared voting powerfinancial
"Shared Voting Power 2,500,000.00"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
shared dispositive powerfinancial
"Shared Dispositive Power 2,500,000.00"
Section 13(d) of the Securities Exchange Act of 1934regulatory
"for the purpose of determining their obligations under Section 13(d) of the Securities Exchange Act of 1934"
Section 13(d) of the Securities Exchange Act of 1934 is a U.S. rule that requires anyone who buys more than 5% of a public company’s shares to publicly disclose who they are, how many shares they own, and their intentions toward the company. For investors, this is like a neighborhood alert when someone acquires a large stake in a building: it reveals potential changes in control or strategy that could affect the stock’s price, governance, or future direction.
Schedule 13Gregulatory
"the filing of this report shall not be deemed an admission under Schedule 13G"
A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.
FAQ
What percentage of Cerus Corp (CERS) shares does the Soleus Capital group report owning?
The Soleus Capital group reports beneficial ownership of 1.2% of Cerus Corp common stock. This is based on 2,500,000 shares held versus 201,524,898 shares outstanding as of July 16, 2026.
How many Cerus Corp (CERS) shares are reported by Soleus Capital Master Fund, L.P.?
Soleus Capital Master Fund, L.P. reports holding 2,500,000 shares of Cerus Corp common stock. These shares are held with shared voting and shared dispositive power among the Soleus-related entities and Guy Levy.
Does the Soleus Capital group have sole or shared voting power over its Cerus Corp (CERS) shares?
The Soleus Capital group reports 0 shares with sole voting power and 2,500,000 shares with shared voting power. It also reports the same 2,500,000 shares with shared dispositive power and no sole dispositive power.
On what share count is the 1.2% ownership of Cerus Corp (CERS) based?
The reported 1.2% ownership is calculated using 201,524,898 shares of Cerus Corp common stock outstanding. This outstanding share figure is as of July 16, 2026, referenced from Cerus’s Form 10-Q cover page.
Do Soleus Capital entities and Guy Levy claim full beneficial ownership of Cerus Corp (CERS) shares?
The Soleus entities and Guy Levy disclaim beneficial ownership of the Cerus shares beyond Section 13(d) reporting. They state the shares are held directly by Soleus Capital Master Fund, L.P. and disclaim ownership for other purposes.
What does the Schedule 13G/A filing say about Soleus Capital’s ownership level in Cerus Corp (CERS)?
The filing states the Soleus Capital group holds 5% or less of Cerus Corp’s common stock class. This is consistent with the reported 1.2% beneficial ownership based on 2,500,000 shares held.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
CERUS CORP
(Name of Issuer)
Common Stock, par value $0.001 per share
(Title of Class of Securities)
157085101
(CUSIP Number)
06/30/2026
(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)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
157085101
1
Names of Reporting Persons
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
0.00
6
Shared Voting Power
2,500,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,500,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,500,000.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.2 %
12
Type of Reporting Person (See Instructions)
FI
Comment for Type of Reporting Person: (1) The shares reported in the table above are held directly by Soleus Capital Master Fund, L.P. ("Master Fund"). Soleus Capital, LLC ("Soleus Capital") is the sole general partner of Master Fund, Soleus Capital Group, LLC ("SCG") is the sole managing member of Soleus Capital, Soleus Capital Management, L.P. ("SCM") is the investment manager for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of SCG and of Soleus GP, LLC. Each of SCG, Soleus Capital, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held by Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose.
(2) The percentage set forth in row 11 is calculated based upon 201,524,898 shares of the common stock of Cerus Corporation (the "Issuer") outstanding as of July 16, 2026, as reported on the cover of the Issuer's Quarterly Report on Form 10-Q for the fiscal quarter ended June 30, 2026, filed with the Securities and Exchange Commission on July 30, 2026 (the "Form 10-Q").
SCHEDULE 13G
CUSIP Number(s):
157085101
1
Names of Reporting Persons
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
0.00
6
Shared Voting Power
2,500,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,500,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,500,000.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.2 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: (1) The shares reported in the table above are held directly by Master Fund. Soleus Capital is the sole general partner of Master Fund, SCG is the sole managing member of Soleus Capital, SCM is the investment manager for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of SCG and of Soleus GP, LLC. Each of SCG, Soleus Capital, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held by Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose.
(2) The percentage set forth in row 11 is calculated based upon 201,524,898 shares of the common stock of the Issuer outstanding as of July 16, 2026, as set forth on the cover of the Form 10-Q.
SCHEDULE 13G
CUSIP Number(s):
157085101
1
Names of Reporting Persons
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
0.00
6
Shared Voting Power
2,500,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,500,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,500,000.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.2 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: (1) The shares reported in the table above are held directly by Master Fund. Soleus Capital is the sole general partner of Master Fund, SCG is the sole managing member of Soleus Capital, SCM is the investment manager for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of SCG and of Soleus GP, LLC. Each of SCG, Soleus Capital, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held by Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose.
(2) The percentage set forth in row 11 is calculated based upon 201,524,898 shares of the common stock of the Issuer outstanding as of July 16, 2026, as set forth on the cover of the Form 10-Q.
SCHEDULE 13G
CUSIP Number(s):
157085101
1
Names of Reporting Persons
Soleus Capital Management, 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
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
2,500,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,500,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,500,000.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.2 %
12
Type of Reporting Person (See Instructions)
PN
Comment for Type of Reporting Person: (1) The shares reported in the table above are held directly by Master Fund. Soleus Capital is the sole general partner of Master Fund, SCG is the sole managing member of Soleus Capital, SCM is the investment manager for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of SCG and of Soleus GP, LLC. Each of SCG, Soleus Capital, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held by Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose.
(2) The percentage set forth in row 11 is calculated based upon 201,524,898 shares of the common stock of the Issuer outstanding as of July 16, 2026, as set forth on the cover of the Form 10-Q.
SCHEDULE 13G
CUSIP Number(s):
157085101
1
Names of Reporting Persons
Soleus GP, 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
0.00
6
Shared Voting Power
2,500,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,500,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,500,000.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.2 %
12
Type of Reporting Person (See Instructions)
OO
Comment for Type of Reporting Person: (1) The shares reported in the table above are held directly by Master Fund. Soleus Capital is the sole general partner of Master Fund, SCG is the sole managing member of Soleus Capital, SCM is the investment manager for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of SCG and of Soleus GP, LLC. Each of SCG, Soleus Capital, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held by Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons is the beneficial owner of such shares for any other purpose.
(2) The percentage set forth in row 11 is calculated based upon 201,524,898 shares of the common stock of the Issuer outstanding as of July 16, 2026, as set forth on the cover of the Form 10-Q.
SCHEDULE 13G
CUSIP Number(s):
157085101
1
Names of Reporting Persons
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
0.00
6
Shared Voting Power
2,500,000.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
2,500,000.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
2,500,000.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
1.2 %
12
Type of Reporting Person (See Instructions)
IN
Comment for Type of Reporting Person: (1) The shares reported in the table above are held directly by Master Fund. Soleus Capital is the sole general partner of Master Fund, SCG is the sole managing member of Soleus Capital, SCM is the investment manager for Master Fund, and Soleus GP, LLC is the sole general partner of SCM. Guy Levy is the sole managing member of each of SCG and of Soleus GP, LLC. Each of SCG, Soleus Capital, SCM, Soleus GP, LLC and Mr. Levy disclaims beneficial ownership of these shares held by Master Fund other than for the purpose of determining their obligations under Section 13(d) of the Exchange Act, and the filing of this report shall not be deemed an admission that any of the foregoing persons \s the beneficial owner of such shares for any other purpose.
(2) The percentage set forth in row 11 is calculated based upon 201,524,898 shares of the common stock of the Issuer outstanding as of July 16, 2026, as set forth on the cover of the Form 10-Q.
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
CERUS CORP
(b)
Address of issuer's principal executive offices:
1220 Concord Avenue, Suite 600, Concord, CA 94520
Item 2.
(a)
Name of person filing:
Soleus Capital Master Fund, L.P.
Soleus Capital, LLC
Soleus Capital Group, LLC
Soleus Capital Management, L.P.
Soleus GP, LLC
Guy Levy
(b)
Address or principal business office or, if none, residence:
Soleus Capital Master Fund, L.P., 100 Field Point Road, Suite 200, Greenwich, CT 06830
Soleus Capital, LLC, 100 Field Point Road, Suite 200, Greenwich, CT 06830
Soleus Capital Group, LLC, 100 Field Point Road, Suite 200, Greenwich, CT 06830
Soleus Capital Management, L.P., 100 Field Point Road, Suite 200, Greenwich, CT 06830
Soleus GP, LLC, 100 Field Point Road, Suite 200, Greenwich, CT 06830
Guy Levy, c/o Soleus Capital Management, L.P., 100 Field Point Road, Suite 200,
Greenwich, CT 06830
(c)
Citizenship:
Soleus Capital Master Fund, L.P. - Cayman Islands
Soleus Capital, LLC - Delaware
Soleus Capital Group, LLC - Delaware
Soleus Capital Management, L.P. - Delaware
Soleus GP, LLC - Delaware
Guy Levy - United States
(d)
Title of class of securities:
Common Stock, par value $0.001 per share
(e)
CUSIP No.:
157085101
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). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
The information in rows 5 through 9 and 11 on the cover pages to this Schedule 13G, including the footnotes thereto, is hereby incorporated by reference.
2,500,000
(b)
Percent of class:
1.2 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
0
(ii) Shared power to vote or to direct the vote:
2,500,000
(iii) Sole power to dispose or to direct the disposition of:
0
(iv) Shared power to dispose or to direct the disposition of:
2,500,000
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
Item 6.
Ownership of more than 5 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 or Control Person.
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.
Certifications:
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 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, other than activities solely in connection with a nomination under § 240.14a-11.
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.
Soleus Capital Master Fund, L.P.
Signature:
/s/ Guy Levy
Name/Title:
Guy Levy / Managing Member of the Managing Member of the General Partner of Soleus Capital Master Fund, L.P.
Date:
08/13/2026
Soleus Capital, LLC
Signature:
/s/ Guy Levy
Name/Title:
Guy Levy / Managing Member of the Managing Member of Soleus Capital, LLC
Date:
08/13/2026
Soleus Capital Group, LLC
Signature:
/s/ Guy Levy
Name/Title:
Guy Levy / Managing Member
Date:
08/13/2026
Soleus Capital Management, L.P.
Signature:
/s/ Guy Levy
Name/Title:
Guy Levy / Managing Member of the General Partner of Soleus Capital Management, L.P.
