Biocryst Pharmaceuticals Inc (BCRX): Baker Bros. Advisors Unloads Nearly 4 Million Shares

1.

NAMES OF REPORTING PERSONS

Julian C. Baker

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

United States

7.

SOLE VOTING POWER: 11,062,403
(1)

8.

SHARED VOTING POWER: 0

9.

SOLE DISPOSITIVE POWER: 11,062,403 (1)

10.

SHARED DISPOSITIVE POWER: 0

11.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON: 11,062,403
(1)

12.

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

¨

13.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

14.99% (1)

14.

TYPE OF REPORTING PERSON (See Instructions)

IN, HC