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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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 *

GRAHAM DONALD 		2. Issuer Name and Ticker or Trading Symbol

Cable One, Inc. [ CABO ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

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

C/O GRAHAM HOLDINGS COMPANY, 1300 NORTH 17TH STREET 		3. Date of Earliest Transaction (MM/DD/YYYY)

6/7/2018
(Street)

ARLINGTON, VA 22209
(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; par value $0.01                  18194   D    
Common Stock; par value $0.01                  112013   I   Revocable Trust  
Common Stock; par value $0.01   6/7/2018     S    720   D $650.07   (3) 179672   I   Trusts for Siblings   (1)
Common Stock; par value $0.01   6/8/2018     S    2158   D $661.19   (4) 177514   I   Trusts for Siblings   (1)
Common Stock; par value $0.01   6/11/2018     S    1438   D $670.98   (5) 176076   I   Trusts for Siblings   (1)
Common Stock; par value $0.01                  9800   I   Trusts for Children   (1)
Common Stock; par value $0.01                  2844   I   Trusts for Children of Siblings   (1)
Common Stock; par value $0.01                  5000   I   Trusts for Third Party   (1)
Common Stock; par value $0.01                  388225   I   Beneficiary of Trusts   (1)
Common Stock; par value $0.01                  15   I   By spouse   (2)

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:
(1)  The reporting person is a trustee of the trust that owns the reported securities, but he is not a beneficiary of such trust. The reporting person disclaims beneficial ownership of the reported securities.
(2)  The reporting person disclaims beneficial ownership of the reported securities.
(3)  The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $647.41 to $651.17, inclusive. The reporting person undertakes to provide to Cable One, Inc., any security holder of Cable One, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the shares sold at each separate price within the ranges set forth in this footnote, and in footnotes (4) and (5), inclusive to this Form 4.
(4)  The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $655.00 to $665.00, inclusive.
(5)  The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $665.00 to $678.00, inclusive.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
GRAHAM DONALD
C/O GRAHAM HOLDINGS COMPANY
1300 NORTH 17TH STREET
ARLINGTON, VA 22209
X


Signatures
/s/ Nicole M. Maddrey for Donald E. Graham 6/11/2018
** 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.
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