13G Filing: Baker Bros. Advisors and Bellicum Pharmaceuticals Inc (NASDAQ:BLCM)

SCHEDULE 13G

SECURITIES AND
EXCHANGE COMMISSION
WASHINGTON, DC 20549

Under the
Securities Exchange Act of 1934

(Amendment No.    )*

Bellicum Pharmaceuticals, Inc.

(Name of Issuer)

Common Stock, par value $0.01 per share

(Title of Class of Securities)

079481107

(CUSIP Number)

Not Applicable

(Date of Event which Requires Filing of
this Statement)

Check the
appropriate box to designate the rule pursuant to which this Schedule is filed:

x

Rule 13d-1(b)

¨

[Rule 13d-1(c)

¨

Rule 13d-1(d)

* The remainder
of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject
class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior
cover page.

The information
required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18
of the Securities Exchange Act of 1934 (the “Act”) or otherwise subject to the liabilities of that section of the
Act, but shall be subject to all other provisions of the Act (however, see the Notes).