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 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * TAYTON-MARTIN HELEN KATRINA   2. Issuer Name and Ticker or Trading Symbol Adaptimmune Therapeutics PLC [ADAP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Business Officer (Last) (First) (Middle) BROCK HOUSE, SHEEPDROVE, LAMBOURN 3. Date of Earliest Transaction (Month/Day/Year) 01/04/2019 (Street) HUNGERFORD, X0 RG17 7XA 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	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.		SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction 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 (Month/Day/Year)

7. Title and Amount of Underlying Securities (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

Option to purchase Ordinary Shares

$ 0.89 (1)

01/04/2019

A

1,006,224

(2)

01/04/2029

Ordinary Shares

1,006,224

$ 0

1,006,224

D

Option to purchase Ordinary Shares

$ 0.0013 (3)

01/04/2019

A

224,724

(4)

01/04/2029

Ordinary Shares

224,724

$ 0

224,724

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
TAYTON-MARTIN HELEN KATRINA BROCK HOUSE, SHEEPDROVE, LAMBOURN HUNGERFORD, X0 RG17 7XA			Chief Business Officer

Signatures

/s/ Helen Tayton-Martin		01/08/2019
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The exercise price was converted from GBP0.70 based on an exchange rate of $U.S. 1.26332 - GBP1.00. The actual exercise price will be the pounds sterling amount.
(2)	Exercisable as to 251,556 Ordinary Shares on January 4, 2020 and will be exercisable as to the remainder in monthly installments of 20,958 Ordinary Shares on the fourth of each month from February 4, 2020 through December 2, 2022 and 21,138 Ordinary Shares on January 4, 2023.
(3)	The exercise price was converted from GBP0.001, being the nominal value of an ordinary share, based on an exchange rate of $U.S. 1.26332 - GBP1.00. The actual exercise price will be the pounds sterling amount.
(4)	Exercisable as to 56,178 Ordinary Shares on January 4, 2020 and will be exercisable as to the remainder in annual installments of 56,178 Ordinary Shares on January 4, 2021 and January 4, 2022, and 56,190 Ordinary Shares on January 4, 2023.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.