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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
GENERAL CATALYST GROUP III LP
  2. Issuer Name and Ticker or Trading Symbol
BRIGHTCOVE INC [BCOV]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O GENERAL CATALYST PARTNERS, 20 UNIVERSITY ROAD, 4TH FLOOR
3. Date of Earliest Transaction (Month/Day/Year)
09/11/2012
(Street)

CAMBRIDGE, MA 02138
4. If Amendment, Date 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
(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
Common Stock 09/11/2012   J(1)   884,178 D $ 0 2,652,533 D  
Common Stock 09/11/2012   J(2)   31,990 D $ 0 95,970 D  
Common Stock 09/11/2012   J(3)   205,255 D $ 0 615,763 D  
Common Stock 09/11/2012   J(4)   5,446 D $ 0 16,335 D  
Common Stock 09/11/2012   J(5)   9,002 A $ 0 18,004 D  
Common Stock 09/11/2012   J(6)   2,080 A $ 0 4,160 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
GENERAL CATALYST GROUP III LP
C/O GENERAL CATALYST PARTNERS
20 UNIVERSITY ROAD, 4TH FLOOR
CAMBRIDGE, MA 02138
    X    
GC ENTREPRENEURS FUND III LP
C/O GENERAL CATALYST PARTNERS
20 UNIVERSITY ROAD, 4TH FLOOR
CAMBRIDGE, MA 01238
    X    
General Catalyst GP III, LLC
C/O GENERAL CATALYST PARTNERS
20 UNIVERSITY ROAD, 4TH FLOOR
CAMBRIDGE, MA 01238
    X    
General Catalyst Partners III, L.P.
C/O GENERAL CATALYST PARTNERS
20 UNIVERSITY ROAD, 4TH FLOOR
CAMBRIDGE, MA 01238
    X    
GENERAL CATALYST GROUP IV LP
C/O GENERAL CATALYST PARTNERS
20 UNIVERSITY ROAD, 4TH FLOOR
CAMBRIDGE, MA 01238
    X    
GC ENTREPRENEURS FUND IV L P
C/O GENERAL CATALYST PARTNERS
20 UNIVERSITY ROAD, 4TH FLOOR
CAMBRIDGE, MA 01238
    X    
General Catalyst GP IV, LLC
C/O GENERAL CATALYST PARTNERS
20 UNIVERSITY ROAD, 4TH FLOOR
CAMBRIDGE, MA 01238
    X    
General Catalyst Partners IV, L.P.
C/O GENERAL CATALYST PARTNERS
20 UNIVERSITY ROAD, 4TH FLOOR
CAMBRIDGE, MA 01238
    X    
Fialkow David P
C/O GENERAL CATALYST PARTNERS
20 UNIVERSITY ROAD, 4TH FLOOR
CAMBRIDGE, MA 01238
    X    
Cutler Joel E
C/O GENERAL CATALYST PARTNERS
20 UNIVERSITY ROAD, 4TH FLOOR
CAMBRIDGE, MA 01238
    X    

Signatures

 /s/ William J. Fitzgerald, Member and Chief Financial Officer, General Catalyst GP III, LLC, the General Partner for General Catalyst Partners III, L.P., the General Partner for General Catalyst Group III, L.P. and GC Entrepreneurs Fund III, L.P.   09/11/2012
**Signature of Reporting Person Date

 /s/ William J. Fitzgerald, Member and Chief Financial Officer, General Catalyst GP III, LLC, the General Partner for General Catalyst Partners III, L.P.   09/11/2012
**Signature of Reporting Person Date

 /s/ William J. Fitzgerald, Member and Chief Financial Officer, General Catalyst GP III, LLC   09/11/2012
**Signature of Reporting Person Date

 /s/ William J. Fitzgerald, Member and Chief Financial Officer, General Catalyst GP IV, LLC, the General Partner for General Catalyst Partners IV, L.P., the General Partner for General Catalyst Group IV, L.P. and GC Entrepreneurs Fund IV, L.P.   09/11/2012
**Signature of Reporting Person Date

 /s/ William J. Fitzgerald, Member and Chief Financial Officer, General Catalyst GP IV, LLC, the General Partner for General Catalyst Partners IV, L.P.   09/11/2012
**Signature of Reporting Person Date

 /s/ William J. Fitzgerald, Member and Chief Financial Officer, General Catalyst GP IV, LLC   09/11/2012
**Signature of Reporting Person Date

 /s/ David P. Fialkow   09/11/2012
**Signature of Reporting Person Date

 /s/ Joel E. Cutler   09/11/2012
**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) Effective September 11, 2012, General Catalyst Group III, L.P. ("GCG III"), a venture capital partnership, distributed in-kind, without consideration, a total of 884,178 shares of Common Stock of the Issuer to its general and limited partners. The remaining securities are held by GCG III. General Catalyst GP III, LLC ("GP III LLC") is the general partner of General Catalyst Partners III, L.P. ("GP III LP"), which is the general partner of GCG III. Each of Joel Cutler and David Fialkow is a Managing Director of GP III LLC. Each of GP III LLC, GP III LP, Joel Cutler and David Fialkow may be deemed to share voting and investment power over the shares held of record by GCG III. Each of GP III LLC, GP III LP, Joel Cutler and David Fialkow disclaims beneficial ownership of all shares held by GCG III except to the extent of their pecuniary interest therein.
(2) Effective September 11, 2012, GC Entrepreneurs Fund III, L.P. ("GCEF III"), a venture capital partnership, distributed in-kind, without consideration, a total of 31,990 shares of Common Stock of the Issuer to its general and limited partners. The remaining securities are held by GCEF III. GP III LLC is the general partner of GP III LP, which is the general partner of GCEF III. Each of Joel Cutler and David Fialkow is a Managing Director of GP III LLC. Each of GP III LLC, GP III LP, Joel Cutler and David Fialkow may be deemed to share voting and investment power over the shares held of record by GCEF III. Each of GP III LLC, GP III LP, Joel Cutler and David Fialkow disclaims beneficial ownership of all shares held by GCEF III except to the extent of their pecuniary interest therein.
(3) Effective September 11, 2012, General Catalyst Group IV, L.P. ("GCG IV"), a venture capital partnership, distributed in-kind, without consideration, a total of 205,255 shares of Common Stock of the Issuer to its general and limited partners. The remaining securities are held by GCG IV. General Catalyst GP IV, LLC ("GP IV LLC") is the general partner of General Catalyst Partners IV, L.P. ("GP IV LP"), which is the general partner of GCG IV. Each of Joel Cutler and David Fialkow is a Managing Director of GP IV LLC. Each of GP IV LLC, GP IV LP, Joel Cutler and David Fialkow may be deemed to share voting and investment power over the shares held of record by GCG IV. Each of GP IV LLC, GP IV LP, Joel Cutler and David Fialkow disclaims beneficial ownership of all shares held by GCG IV except to the extent of their pecuniary interest therein.
(4) Effective September 11, 2012, GC Entrepreneurs Fund IV, L.P. ("GCEF IV"), a venture capital partnership, distributed in-kind, without consideration, a total of 5,446 shares of Common Stock of the Issuer to its general and limited partners. The remaining securities are held by GCEF IV. GP IV LLC is the general partner of GP IV LP, which is the general partner of GCEF IV. Each of Joel Cutler and David Fialkow is a Managing Director of GP IV LLC. Each of GP IV LLC, GP IV LP, Joel Cutler and David Fialkow may be deemed to share voting and investment power over the shares held of record by GCEF IV. Each of GP IV LLC, GP IV LP, Joel Cutler and David Fialkow disclaims beneficial ownership of all shares held by GCEF IV except to the extent of their pecuniary interest therein.
(5) Shares acquired through a distribution in-kind from GCG III and GCEF III by GP III LP. GP III LLC is the general partner of GP III LP. Each of Joel Cutler and David Fialkow is a Managing Director of GP III LLC. Each of GP III LLC, Joel Cutler and David Fialkow may be deemed to share voting and investment power over the shares held of record by GP III LP. Each of GP III LLC, Joel Cutler and David Fialkow disclaims beneficial ownership of all shares held by GP III LP except to the extent of its pecuniary interest therein, if any.
(6) Shares acquired through a distribution in-kind from GCG IV and GCEF IV by GP IV LP. GP IV LLC is the general partner of GP IV LP. Each of Joel Cutler and David Fialkow is a Managing Director of GP IV LLC. Each of GP IV LLC, Joel Cutler and David Fialkow may be deemed to share voting and investment power over the shares held of record by GP IV LP. Each of GP IV LLC, Joel Cutler and David Fialkow disclaims beneficial ownership of all shares held by GP IV LP except to the extent of its pecuniary interest therein, if any.

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