Ownership Submission

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 or Section 30(h) of the Investment Company Act of 1940

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3235-0287

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(Print or Type Responses)

1. Name and Address of Reporting Person ^*

Alleva Lawrence M

2. Issuer Name and Ticker or Trading Symbol
Adaptimmune Therapeutics PLC [ADAP]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

__X__ Director	_____ 10% Owner
_____ Officer (give title below)	_____ Other (specify below)

(Last)

(First)

(Middle)

C/O ADAPTIMMUNE THERAPEUTICS PLC,, 60 JUBILEE AVE, MILTON PARK

3. Date of Earliest Transaction (Month/Day/Year)
06/01/2021

(Street)

ABINGDON, X0 OX14 4RX

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)
1.Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Ordinary Shares with a nominal value of GBP0.001 per share ⁽¹⁾	06/01/2021		P		12,600 ⁽²⁾	A	$ 0.79 ⁽³⁾	12,600 ⁽²⁾	I	Held by Trust
Ordinary Shares with a nominal value of GBP0.001 per share								60,180 ⁽⁴⁾	I	Held by Trust
Ordinary Shares with a nominal value of GBP0.001 per share								70,584 ⁽⁵⁾	D

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

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Alleva Lawrence M C/O ADAPTIMMUNE THERAPEUTICS PLC, 60 JUBILEE AVE, MILTON PARK ABINGDON, X0 OX14 4RX	X

Signatures

/s/ Lawrence M. Alleva		06/03/2021
^**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 ordinary shares whose purchase is reported on this line are represented by American Depositary Shares ("ADS") and are held in the form of ADSs by the Lawrence M. Alleva Revocable Trust. Each ADS represents six ordinary shares of Adaptimmune Therapeutics plc.
(2)	The 12,600 ordinary shares reported in Column 4 and Column 5 are represented by 2,100 ADSs.
(3)	The price reported in Column 4 of $0.79 per ordinary share is derived from the weighted average purchase price paid on June 1, 2021 of $4.745 per ADS divided by six.
(4)	The 60,180 ordinary shares reported in Column 5 are represented by 10,030 ADSs. These shares are held in the form of ADSs by the Lawrence M. Alleva Revocable Trust.
(5)	The 70,584 ordinary shares reported in Column 5 are represented by 11,764 ADSs. These shares are held in the form of ADSs by Mr. Alleva.

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