13D Filing: Baker Bros. Advisors and Genomic Health Inc (GHDX)

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Page 3 of 12 – SEC Filing

CUSIP No.  37244C101 Page   3   of   12   Pages
1.

NAMES OF REPORTING PERSONS

Baker Bros. Advisors (GP) LLC

2.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)
¨

(b)
¨

3.

SEC USE ONLY

4.

SOURCE OF FUNDS*

OO

5.

CHECK
BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEM 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:

13,918,966 (1)

8.

SHARED VOTING POWER:

0

9.

SOLE DISPOSITIVE POWER:

13,918,966 (1)

10.

SHARED DISPOSITIVE POWER:

0

11.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON:

13,918,966 (1)

12.

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

¨

13.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

39.9% (1)(2)

14.

TYPE OF REPORTING PERSON*

HC, OO

(1) Includes 72,765 shares of the common stock of the
Issuer underlying options directly held by Julian C. Baker, 56,265 shares of the Issuer’s common stock underlying options
directly held by Felix J. Baker, 31,598 shares of the Issuer’s common stock directly held by Julian C. Baker and 7,503 shares
of the Issuer’s common stock directly held by Felix J. Baker.
(2) Based on 34,785,241 shares of the Issuer’s common
stock outstanding as of October 31, 2017, as reported in the Issuer’s Form 10-Q filed with the SEC on November 9, 2017.

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