CUSIP No. 157085101
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1
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NAMES OF REPORTING PERSONS
Baker Bros. Advisors LP
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2
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CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
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(a) ¨
(b)
¨
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3
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SEC USE ONLY
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4
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CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
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NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
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5
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SOLE VOTING POWER
13,713,195
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6
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SHARED VOTING POWER
-0-
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7
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SOLE DISPOSITIVE POWER
13,713,195
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8
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SHARED DISPOSITIVE POWER
-0-
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9
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AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
13,713,195
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10
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CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(See Instructions)
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¨
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11
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PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
8.2% (1)
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12
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TYPE OF REPORTING PERSON (See Instructions)
IA, PN
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(1)
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Based on 167,141,975 shares of Common Stock (“Common Stock”) of Cerus Corporation (the “Issuer”) outstanding
as of October 20, 2020, as reported in the Issuer’s Form 10-Q filed with the Securities and Exchange Commission (the “SEC”)
on October 29, 2020.
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CUSIP No. 157085101
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|
1
|
NAMES OF REPORTING PERSONS
Baker Bros. Advisors (GP) LLC
|
2
|
CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
|
(a) ¨
(b)
¨
|
3
|
SEC USE ONLY
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4
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CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
|
NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
|
5
|
SOLE VOTING POWER
13,713,195
|
6
|
SHARED VOTING POWER
-0-
|
7
|
SOLE DISPOSITIVE POWER
13,713,195
|
8
|
SHARED DISPOSITIVE POWER
-0-
|
9
|
AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
13,713,195
|
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(See Instructions)
|
¨
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11
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PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
8.2% (1)
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12
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TYPE OF REPORTING PERSON (See Instructions)
HC, OO
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(1)
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Based on 167,141,975 shares of Common Stock of the Issuer outstanding as of October 20, 2020, as reported in the Issuer’s
Form 10-Q filed with the SEC on October 29, 2020.
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CUSIP No. 157085101
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1
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NAMES OF REPORTING PERSONS
Felix J. Baker
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2
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CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
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(a) ¨
(b)
¨
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3
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SEC USE ONLY
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4
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CITIZENSHIP OR PLACE OF ORGANIZATION
United States
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NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
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5
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SOLE VOTING POWER
13,733,059
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6
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SHARED VOTING POWER
-0-
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7
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SOLE DISPOSITIVE POWER
13,733,059
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8
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SHARED DISPOSITIVE POWER
-0-
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9
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AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
PERSON
13,733,059
|
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(See Instructions)
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¨
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11
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PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
8.2% (1)
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12
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TYPE OF REPORTING PERSON (See Instructions)
IN, HC
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(1)
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Based on 167,141,975 shares of Common Stock of the Issuer outstanding as of October 20, 2020, as reported in the Issuer’s
Form 10-Q filed with the SEC on October 29, 2020.
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CUSIP No. 157085101
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1
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NAMES OF REPORTING PERSONS
Julian C. Baker
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2
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CHECK
THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
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(a) ¨
(b)
¨
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3
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SEC USE ONLY
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4
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CITIZENSHIP OR PLACE OF ORGANIZATION
United States
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NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH
|
5
|
SOLE VOTING POWER
13,733,059
|
6
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SHARED VOTING POWER
-0-
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7
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SOLE DISPOSITIVE POWER
13,733,059
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8
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SHARED DISPOSITIVE POWER
-0-
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9
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AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
13,733,059
|
10
|
CHECK
BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
(See Instructions)
|
11
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PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
8.2% (1)
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12
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TYPE OF REPORTING PERSON (See Instructions)
IN, HC
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(1)
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Based on 167,141,975 shares of Common Stock of the Issuer outstanding as of October 20, 2020, as reported in the Issuer’s
Form 10-Q filed with the SEC on October 29, 2020.
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Amendment No. 7 to Schedule 13G
This Amendment No. 7 to Schedule 13G amends the previously filed
Schedule 13G filed by Baker Bros. Advisors LP (the “Adviser”), Baker Bros. Advisors (GP) LLC (the “Adviser GP”),
Julian C. Baker and Felix J. Baker (collectively, the “Reporting Persons”). Except as supplemented herein, such statements,
as heretofore amended and supplemented, remain in full force and effect.
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Item 1(a)
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Name of Issuer:
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Cerus Corporation (the
“Issuer”)
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Item 1(b)
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Address of Issuer’s Principal Executive Offices:
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1220 Concord Avenue, Suite 600
Concord, California 94520
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Item 2(a)
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Name of Person Filing:
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This Amendment No. 7 is
being filed jointly by the Reporting Persons.
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Item 2(b)
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Address of Principal Business Office or, if None, Residence:
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The business address of each of
the Reporting Persons is:
c/o Baker Bros. Advisors LP
860 Washington Street, 3rd
Floor
New York, NY 10014
(212) 339-5690
The Adviser is a limited partnership organized under
the laws of the State of Delaware. The Adviser GP is a limited liability company organized under the laws of the State of Delaware.
The citizenship of each of Julian C. Baker and Felix J. Baker is the United States of America.
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Item 2(d)
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Title of Class of Securities
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Common Stock, $0.001 par value per share (“Common Stock”)
157085101
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Item 3.
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If this statement is filed pursuant to §§240.13d-1(b) or (c), check whether the person filing is a:
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(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 of 1940.
(e) x 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) x 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 of 1940.
(j) ¨ Group, in accordance
with Rule 13d-1(b)(1)(ii)(J).
Items 5 through 9 and 11 of each of the cover pages to this
Amendment No. 7 are incorporated herein by reference. Set forth below is the aggregate number of shares of Common Stock of the
Issuer directly held by each of Baker Brothers Life Sciences, L.P. (“Life Sciences”) and 667, L.P. (“667”,
and together with Life Sciences, the “Funds”) which may be deemed to be indirectly beneficially owned by the Reporting
Persons.
The information set forth below is based upon 167,141,975 shares
of Common Stock outstanding as of October 20, 2020, as reported in the Issuer’s Form 10-Q filed with the Securities and Exchange
Commission on October 29, 2020. Such percentage figures are calculated in accordance with Rule 13d-3 under the Securities Exchange
Act of 1934, as amended.
Name
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Number of Shares
of Common Stock
we own or have the
right to acquire
within 60 days
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Percent of
Class
Outstanding
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667, L.P.
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1,260,204
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0.8
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%
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Baker Brothers Life Sciences, L.P.
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12,452,991
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7.4
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%
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Total
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13,713,195
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8.2
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%
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The Adviser GP, Felix J. Baker and Julian C. Baker as managing
members of the Adviser GP, and the Adviser may be deemed to be beneficial owners of securities of the Issuer directly held by the
Funds.
The Adviser GP is the sole general partner of the Adviser. Pursuant
to the management agreements, as amended, among the Adviser, Life Sciences and 667 and their respective general partners, the Funds’
respective general partners relinquished to the Adviser all discretion and authority with respect to the investment and voting
power of the securities held by the Funds, and thus the Adviser has complete and unlimited discretion and authority with respect
to the Funds’ investments and voting power over investments.
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Item 5.
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Ownership of Five Percent or Less of a Class.
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If this statement
is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more
than five percent of the class of securities, check the following ¨. N/A
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Item 6.
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Ownership of More than Five Percent on Behalf of Another
Person.
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N/A
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Item 7.
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Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding
Company or Control Person.
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The information in Item
4 is incorporated herein by reference.
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Item 8.
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Identification and Classification of Members of the Group.
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N/A
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Item 9.
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Notice of Dissolution of Group.
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N/A
By signing below I certify that, to the best of my
knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and 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.
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.
February 16, 2021
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BAKER BROS. ADVISORS LP
By: Baker Bros. Advisors (GP) LLC, its general partner
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By:
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/s/ Scott L. Lessing
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Name: Scott L. Lessing
Title: President
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BAKER BROS. ADVISORS (GP) LLC
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By:
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/s/ Scott L. Lessing
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Name: Scott L. Lessing
Title: President
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/s/ Julian C. Baker
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Julian C. Baker
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/s/ Felix J. Baker
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Felix J. Baker
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