SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
MITSUI & CO USA INC

(Last) (First) (Middle)
200 PARK AVE

(Street)
NEW YORK NY 10166

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
BOINGO WIRELESS INC [ WIFI ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
05/03/2011
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X 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. 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
Common Stock 05/03/2011 S 651,535 D $13.5 175,543 I MCVP Holding, Inc.(1)
Common Stock 3,348,076 D(2)
Common Stock 2,520,998 I Corporate Development Fund of Mitsui & Co. Ltd(3)
Comnmon Stock 16,707 I Mitsui & Co. Global Investment, Inc.(4)
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 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: 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
1. Name and Address of Reporting Person*
MITSUI & CO USA INC

(Last) (First) (Middle)
200 PARK AVE

(Street)
NEW YORK NY 10166

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
MCVP Holding, Inc.

(Last) (First) (Middle)
C/O BOINGO WIRELESS, INC.
10960 WILSHIRE BLVD. SUITE 800

(Street)
LOS ANGELES CA 90024

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Corporate Development Fund of Mitsui & Co., Ltd.

(Last) (First) (Middle)
C/O BOINGO WIRELESS, INC.
10960 WILSHIRE BLVD. SUITE 800

(Street)
LOS ANGELES CA 90024

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Mitsui & Co. Global Investment, Inc.

(Last) (First) (Middle)
C/O BOINGO WIRELESS, INC.
10960 WILSHIRE BLVD. SUITE 800

(Street)
LOS ANGELES CA 90024

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
Explanation of Responses:
1. The reported securities are owned directly by MCVP Holding, Inc. Mitsui & Co. (USA), Inc., Corporate Development Fund of Mitsui & Co. Ltd and Mitsui & Co. Global Investment, Inc. may be deemed to beneficially own the reported securities but disclaim beneficial ownership of such securities except to the extent of their pecuniary interests therein.
2. The reported securities are owned directly by Mitsui & Co. (USA), Inc. MCVP Holding, Inc., Corporate Development Fund of Mitsui & Co. Ltd and Mitsui & Co. Global Investment, Inc. may be deemed to beneficially own the reported securities but disclaim beneficial ownership of such securities except to the extent of their pecuniary interests therein.
3. The reported securities are owned directly by Corporate Development Fund of Mitsui & Co. Ltd. MCVP Holding, Inc., Mitsui & Co. (USA), Inc. and Mitsui & Co. Global Investment, Inc. may be deemed to beneficially own the reported securities but disclaim beneficial ownership of such securities except to the extent of their pecuniary interests therein.
4. The reported securities are owned directly by Mitsui & Co. Global Development, Inc. MCVP Holding, Inc., Mitsui & Co. (USA), Inc. and Corporate Development Fund of Mitsui & Co. Ltd. may be deemed to beneficially own the reported securities but disclaim beneficial ownership of such securities except to the extent of their pecuniary interests therein.
/s/ Peter Hovenier as Attorney-in-fact for Mitsui & Co. (USA), Inc. 05/05/2011
/s/ Peter Hovenier as Attorney-in-fact for MCVP Holding, Inc. 05/05/2011
/s/ Peter Hovenier as Attorney-in-fact for Corporate Development Fund of Mitsui & Co., Ltd. 05/05/2011
/s/ Peter Hovenier as Attorney-in-fact for Mitsui & Co. Global Investment, Inc. 05/05/2011
** 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).
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