13D Filing: Baker Bros. Advisors and Beigene Ltd (ADR) (BGNE)

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Page 3 of 11 – SEC Filing

CUSIP No.    07725L102 Page   3   of   11   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)       
o

6.

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY EACH
REPORTING
PERSON WITH

7.

SOLE VOTING POWER: 155,477,734 (1)

8.

SHARED VOTING POWER: 0

9.

SOLE DISPOSITIVE POWER: 155,477,734 (1)

10.

SHARED DISPOSITIVE POWER: 0

11.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 155,477,734 (1)

12.

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

13.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

22.4% (2)

14.

TYPE OF REPORTING PERSON*

HC, OO

(1)
Includes 75,782,577 of the Ordinary Shares reported as beneficially owned that are beneficially owned through ADS. Each ADS represents 13 Ordinary Shares of the Issuer.

(2)
Based on 686,307,080 Ordinary Shares that will be outstanding following the offering plus 6,435,650 Ordinary Shares issued in the form of ADS pursuant to an option granted to the underwriters
as reported in the Issuer’s Prospectus filed with the SEC on January 18,
2018.

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