FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
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OMB Number: 3235-0287
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Tam Benjamin C.K. 		2. Issuer Name and Ticker or Trading Symbol

CANNABIS SCIENCE, INC. [ CBIS ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
Chief Financial Officer
(Last)          (First)          (Middle)

8820 ROSEHILL DRIVE 		3. Date of Earliest Transaction (MM/DD/YYYY)

11/1/2016
(Street)

RICHMOND, A1 V7Z 2K3
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8) 		4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4) 		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   11/1/2016     S    1000000   D $0.0608   14000000   D    
Common Stock   11/2/2016     S    1000000   D $0.06   13000000   D    
Common Stock   11/3/2016     S    118000   D $0.07   12882000   D    
Common Stock   11/7/2016     S    1000000   D $0.0624   11882000   D    
Common Stock   11/8/2016     S    1000000   D $0.065   10882000   D    
Common Stock   12/2/2016     S    500000   D $0.0358   10382000   D    
Common Stock   12/5/2016     S    250000   D $0.0361   10132000   D    
Common Stock   12/6/2016     S    800213   D $0.0417   9331787   D    
Common Stock   12/7/2016     S    80000   D $0.0423   9251787   D    
Common Stock   12/9/2016     S    26000   D $0.0384   9225787   D    
Common Stock   12/12/2016     S    593787   D $0.0385   8632000   D    
Common Stock   12/13/2016     S    415802   D $0.0394   8216198   D    
Common Stock   12/14/2016     S    716198   D $0.0418   7500000   D    
Common Stock   12/19/2016     S    750000   D $0.0392   6750000   D    
Common Stock   12/20/2016     S    585000   D $0.0398   6165000   D    
Common Stock   12/21/2016     S    1165000   D $0.0414   5000000   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8) 		5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5) 		6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4) 		8. Price of Derivative Security
(Instr. 5) 		9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Explanation of Responses:

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Tam Benjamin C.K.
8820 ROSEHILL DRIVE
RICHMOND, A1 V7Z 2K3 		X
Chief Financial Officer

Signatures
/S/ Benjamin CK Tam 1/9/2017
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.