Adaptimmune Therapeutics PLC — Director's Dealing 2016

Jan 4, 2016

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Adaptimmune Therapeutics PLC (ADAP)
CIK: 0001621227
Period of Report: 2016-01-01

Reporting Person: Thompson Peter A. (Director)

Holdings (Non-Derivative)

Security	Shares	Ownership
Ordinary Shares with a nominal value of GBP0.001 per share	25408300	Indirect
Ordinary Shares with a nominal value of GBP0.001 per share	2632704	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Option to purchase Ordinary Shares	$2.8379	2025-05-11	Ordinary Shares (155682)		Direct

Footnotes

F1: Represented by 438,784 American Depositary Shares ("ADSs") held of record by OrbiMed Private Investments V, LP ("OPI V"). OPI V holds these ordinary shares in the form of ADSs. Each ADS represents six ordinary shares of Adaptimmune Therapeutics plc.

F2: These securities are held of record by OPI V. OrbiMed Capital GP V LLC ("GP V") is the sole general partner of OPI V, and OrbiMed Advisors LLC ("Advisors") is the managing member of GP V. Samuel D. Isaly ("Isaly"), a natural person, is the managing member of and owner of a controlling interest in Advisors. By virtue of such relationships, GP V, Advisors and Isaly may be deemed to have voting and investment power over the securities held by OPI V and as a result may be deemed to have beneficial ownership over such securities. The Reporting Person is an employee of Advisors.

F3: Each of GP V, Advisors, Isaly and the Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), except to the extent of its or his pecuniary interest therein, if any. This report on Form 3 shall not be deemed an admission that any such entity or person, including the Reporting Person, is a beneficial owner of such securities for the purpose of Section 16 of the Exchange Act, or for any other purpose.

F4: The exercise price was converted from GBP1.82 based on the noon buying rate of the Federal Reserve Bank of New York for the U.S. dollar on the date of grant. The actual exercise price will be the pounds sterling amount regardless of the exchange rate on the date of grant or of exercise.