13G Filing: Matrix Capital Management and Adaptimmune Therapeutics PLC – ADR (ADAP)

Adaptimmune Therapeutics PLC – ADR (NASDAQ:ADAP): David Goel And Paul Ferri’s Matrix Capital Management filed an amended 13D.

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You can access the original SEC filing by clicking here.

Ownership Summary Table

Name Sole Voting Power Shared Voting Power Sole Dispositive Power Shared Dispositive Power Aggregate Amount Owned Power Percent of Class
Matrix Capital Management Company 72,261,066 72,261,066 72,261,066 12.9%
David E. Goel 72,261,066 72,261,066 72,261,066 12.9%

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Page 1 of 8 – SEC Filing

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No.  )*

Adaptimmune
Therapeutics PLC

(Name of Issuer)

Ordinary
Shares, par value £0.001

(Title of Class of Securities)

00653A107**

(CUSIP Number)

August 31,
2017

(Date of event which requires filing of this statement)
Check the appropriate box to designate the rule pursuant to which this Schedule 13G is filed:
x Rule 13d-1(b)
¨ Rule 13d-1(c)
¨ Rule 13d-1(d)
(Page 1 of 8 Pages)

______________________________

* The remainder of this cover page shall
be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any
subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

** There is no CUSIP number assigned to
the Ordinary Shares. CUSIP number 00653A107 has been assigned to the American Depositary Shares (“ADSs“) of the
Company. Each ADS represents 6 Ordinary Shares.

The information required in the remainder
of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of
1934 (the “Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other
provisions of the Act (however, see the Notes).

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Page 2 of 8 – SEC Filing

1

NAMES OF REPORTING PERSONS

Matrix Capital Management Company LP

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) ¨

(b) ¨

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH
5

SOLE VOTING POWER

– 0 –

6

SHARED VOTING POWER

72,261,066

7

SOLE DISPOSITIVE POWER

– 0 –

8

SHARED DISPOSITIVE POWER

72,261,066

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

72,261,066

10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

12.9%

12

TYPE OF REPORTING PERSON

IA, PN

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Page 3 of 8 – SEC Filing

1

NAMES OF REPORTING PERSONS

David E. Goel

2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) ¨

(b) ¨

3 SEC USE ONLY
4

CITIZENSHIP OR PLACE OF ORGANIZATION

United States

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON WITH
5

SOLE VOTING POWER

– 0 –

6

SHARED VOTING POWER

72,261,066

7

SOLE DISPOSITIVE POWER

– 0 –

8

SHARED DISPOSITIVE POWER

72,261,066

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

72,261,066

10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨
11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

12.9%

12

TYPE OF REPORTING PERSON

IN

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Page 4 of 8 – SEC Filing

Item 1(a). NAME OF ISSUER.
The name of the issuer is Adaptimmune Therapeutics PLC (the “Company“).
Item 1(b). ADDRESS OF ISSUER’S PRINCIPAL EXECUTIVE OFFICES:
The Company’s principal executive offices are located at 60 Jubilee Avenue, Milton Park, Abingdon, Oxfordshire OX14 4RX, United Kingdom.
Item 2(a). NAME OF PERSON FILING:
This statement is filed by:
(i)

Matrix Capital Management Company LP (the “Investment Manager”),
a Delaware limited partnership, and the investment adviser to Matrix Capital Management Master Fund, LP (the “Matrix Fund”),
with respect to the Shares (as defined in Item 2(d) below) represented by the ADSs directly held by the Matrix Fund; and

(ii) Mr. David E. Goel (the “Mr. Goel“), the Managing General Partner of the Investment Manager, with respect to the Shares represented by the ADSs directly held by the Matrix Fund.
The foregoing persons are hereinafter sometimes collectively referred to as the “Reporting Persons.”
The filing of this statement should not be construed as an admission that any of the forgoing persons or any Reporting Person is, for the purposes of Section 13 of the Act, the beneficial owner of the Shares reported herein.
Item 2(b). ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE:
The address of the business office of each of the Reporting Persons is Bay Colony Corporate Center, 1000 Winter Street, Suite 4500, Waltham, MA 02451.
Item 2(c). CITIZENSHIP:
The Investment Manager is a Delaware limited partnership.  Mr. Goel is a citizen of the United States.
Item 2(d). TITLE OF CLASS OF SECURITIES:
Ordinary Shares, par value £0.001 (the “Shares“).

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Page 5 of 8 – SEC Filing

Item 2(e). CUSIP NUMBER:
There is no CUSIP number assigned to the Shares.  CUSIP number 00653A107 has been assigned to the ADSs of the Company.  Each ADS represents 6 Shares.
Item 3. IF THIS STATEMENT IS FILED PURSUANT TO §§ 240.13d-1(b) OR 240.13d-2(b) OR (c), CHECK WHETHER THE PERSON FILING IS A:
(a) ¨ Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o);
(b) ¨ Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c);
(c) ¨ Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c);
(d) ¨ Investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e) x Investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);
(f) ¨

Employee benefit plan or endowment fund in accordance
with

Rule 13d-1(b)(1)(ii)(F);

(g) x

Parent holding company or control person in
accordance with

Rule 13d-1(b)(1)(ii)(G);

(h) ¨

Savings association as defined in Section 3(b)
of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) ¨

Church plan that is excluded from the definition
of an investment company under Section 3(c)(14) of the Investment Company Act (15 U.S.C. 80a-3);

(j) ¨ Non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J);
(k) ¨ Group, in accordance with Rule 13d-1(b)(1)(ii)(K).

If filing as a non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J),
please

specify
the type of institution:_________________________

Item
4.
OWNERSHIP:

The information required by Items 4(a) – (c) is set forth in Rows
5 – 11 of the cover page for each of the Reporting Persons and is incorporated herein by reference.

The percentages used herein are calculated based upon 561,114,526
Shares outstanding, which reflects the number of Shares outstanding as of August 3, 2017, as reported in the Company’s quarterly
report on Form 10-Q filed on August 3,2017.

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Page 6 of 8 – SEC Filing

Item 5. OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.
Not applicable.
Item 6. OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.
See Item 2.  The Matrix Fund, has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, more than 5% of the Shares.
Item 7. IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY.
Not applicable.
Item 8. IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.
Not applicable.
Item 9. NOTICE OF DISSOLUTION OF GROUP.
Not applicable.
Item 10. CERTIFICATION.
Each of the Reporting Persons hereby makes the following certification:
By signing below each Reporting Person certifies that, to the best of his or its knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

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Page 7 of 8 – SEC Filing

SIGNATURES

After reasonable
inquiry and to the best of his or its knowledge and belief, each of the undersigned certify that the information set forth in this
statement is true, complete and correct.

DATED: September 11, 2017

MATRIX CAPITAL MANAGEMENT COMPANY LP
By: /s/ David E. Goel
Name: David E. Goel
Title: Managing General Partner
/s/ David E. Goel
DAVID E. GOEL

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Page 8 of 8 – SEC Filing

EXHIBIT 1

JOINT ACQUISITION STATEMENT
PURSUANT TO RULE 13d-1(k)

The undersigned
acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent
amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the necessity of filing
additional joint acquisition statements. The undersigned acknowledge that each shall be responsible for the timely filing of such
amendments, and for the completeness and accuracy of the information concerning him or it contained therein, but shall not be responsible
for the completeness and accuracy of the information concerning the others, except to the extent that he or it knows or has reason
to believe that such information is inaccurate.

DATED: September 11, 2017

MATRIX CAPITAL MANAGEMENT COMPANY LP
By: /s/ David E. Goel
Name: David E. Goel
Title: Managing General Partner
/s/ David E. Goel
DAVID E. GOEL

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