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 *
TRIDENT II L P
  2. Issuer Name and Ticker or Trading Symbol
James River Group, INC [JRVR]
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 MAPLES & CALDER, UGLAND HOUSE, BOX 309, SOUTH CHURCH STREET
3. Date of Earliest Transaction (Month/Day/Year)
08/12/2005
(Street)

GEORGE TOWN, GRAND CAYMAN, CI 
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 08/12/2005   P   76,815 A $ 18 76,815 D (1) (2) (4)  
Common Stock 08/12/2005   C   377,044 A (10) 453,859 D (1) (3) (4)  
Common Stock 08/12/2005   C   2,386,038 A (11) 2,839,897 D (1) (3) (4)  
Common Stock 08/12/2005   P   963 A $ 18 963 D (1) (5) (7)  
Common Stock 08/12/2005   C   4,614 A (10) 5,577 D (1) (6) (7)  
Common Stock 08/12/2005   C   28,177 A (11) 33,754 D (1) (6) (7)  
Common Stock 08/12/2005   C   10,543 A (10) 10,543 D (1) (8) (9)  
Common Stock 08/12/2005   C   64,836 A (11) 75,379 D (1) (8) (9)  

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
Series A Convertible Preferred Stock (10) 08/12/2005   C     16,343   (10)   (10) Common Stock 377,044 (10) (10) 0 D (1) (4) (12)  
Series B Convertible Preferred Stock (11) 08/12/2005   C     212,708   (11)   (11) Common Stock 2,386,038 (11) (11) 0 D (1) (4) (12)  
Series A Convertible Preferred Stock (10) 08/12/2005   C     200   (10)   (10) Common Stock 4,614 (10) (10) 0 D (1) (7) (13)  
Series B Convertible Preferred Stock (11) 08/12/2005   C     2,512   (11)   (11) Common Stock 28,177 (11) (11) 0 D (1) (7) (13)  
Series A Convertible Preferred Stock (10) 08/12/2005   C     457   (10)   (10) Common Stock 10,543 (10) (10) 0 D (1) (9) (14)  
Series B Convertible Preferred Stock (11) 08/12/2005   C     5,780   (11)   (11) Common Stock 64,836 (11) (11) 0 D (1) (9) (14)  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
TRIDENT II L P
C/O MAPLES & CALDER, UGLAND HOUSE
BOX 309, SOUTH CHURCH STREET
GEORGE TOWN, GRAND CAYMAN, CI 
    X    
TRIDENT CAPITAL II LP
C/O MAPLES & CALDER, UGLAND HOUSE
BOX 309, SOUTH CHURCH STREET
GEORGE TOWN, GRAND CAYMAN, CI 
    X    
MARSH & MCLENNAN CAPITAL PROFESSIONALS FUND LP
C/O MAPLES & CALDER, UGLAND HOUSE
BOX 309, SOUTH CHURCH STREET
GEORGE TOWN, GRAND CAYMAN, CI 
    X    
MARSH & MCLENNAN EMPLOYEES SECURITIES CO LP
C/O MAPLES & CALDER, UGLAND HOUSE
BOX 309, SOUTH CHURCH STREET
GEORGE TOWN, GRAND CAYMAN, CI 
    X    

Signatures

 Trident II, L.P., By: Trident Capital II, L.P., its sole general partner, By: CD Trident II, LLC, a general partner, By: /s/ David Wermuth, Vice President   08/15/2005
**Signature of Reporting Person Date

 Trident Capital II, L.P., By: CD Trident II, LLC, a general partner, By: /s/ David Wermuth, Vice President   08/15/2005
**Signature of Reporting Person Date

 Marsh & McLennan Capital Professionals Fund, L.P., By: Stone Point CP Ltd., its sole general partner, By: /s/ David Wermuth, Secretary   08/15/2005
**Signature of Reporting Person Date

 Marsh & McLennan Employees' Securities Company, L.P., By: Stone Point Capital LLC, Attorney-in-Fact, By: /s/ David Wermuth, Principal   08/15/2005
**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) This filing relates to shares of Common Stock of James River Group, Inc. ("JRVR"). Trident II, L.P. ("Trident") is making this joint filing on Form 4 on its behalf and on behalf of Trident Capital II, L.P. ("Trident GP"), Marsh & McLennan Capital Professionals Fund, L.P. ("CPF") and Marsh & McLennan Employees' Securities Company, L.P. ("ESC"). Trident, CPF and ESC have agreed that they will coordinate the timing of the sale of shares of Common Stock of JRVR. All numbers reported relating to shares of Common Stock of JRVR reflect the 10-for-1 stock split effected by JRVR immediately prior to the closing of the initial public offering of Common Stock of JRVR on August 12, 2005.
(2) Represents shares of Common Stock of JRVR purchased by Trident from the underwriters as part of the initial public offering of Common Stock of JRVR.
(3) Represents shares of Common Stock of JRVR received by Trident upon automatic conversion of shares of Convertible Preferred Stock of JRVR.
(4) Trident GP is the sole general partner of Trident. The general partners of Trident GP are four single member limited liability companies that are owned by individuals who are members of Stone Point Capital LLC, which serves as the investment manager of Trident and CPF. Each of the single member limited liability companies that acts as a general partner of Trident GP disclaims beneficial ownership of shares of JRVR that are, or may be deemed to be, beneficially owned by Trident, other than shares in which they may be deemed to have a pecuniary interest. Trident disclaims beneficial ownership of shares that are, or may be deemed to be, beneficially owned by CPF and ESC.
(5) Represents shares of Common Stock of JRVR purchased by CPF from the underwriters as part of the initial public offering of Common Stock of JRVR.
(6) Represents shares of Common Stock of JRVR received by CPF upon automatic conversion of shares of Convertible Preferred Stock of JRVR.
(7) Stone Point GP Ltd., a company owned by certain individuals who are members of Stone Point Capital LLC, is the sole general partner of CPF. CPF disclaims beneficial ownership of shares that are, or may be deemed to be, beneficially owned by Trident and ESC.
(8) Represents shares of Common Stock of JRVR received by ESC upon automatic conversion of shares of Convertible Preferred Stock of JRVR.
(9) Marsh & McLennan GP I, Inc., a subsidiary of Marsh & McLennan Companies, Inc., is the sole general partner of ESC. ESC disclaims beneficial ownership of shares that are, or may be deemed to be, beneficially owned by Trident and CPF.
(10) Automatic conversion of the Series A Convertible Preferred Stock is exempt under Rule 16b-6. Each share of Series A Convertible Preferred Stock automatically converted into shares of Common Stock of JRVR immediately prior to the closing of the initial public offering of Common Stock of JRVR on August 12, 2005. Each share of Series A Convertible Preferred Stock converted into a number of shares of Common Stock of JRVR equal to the product of (A) the quotient of (i) the sum of (x) $100, representing the purchase price of each share of Series A Convertible Preferred Stock, plus (y) all accrued and unpaid dividends thereon, divided by (ii) $50, multiplied by (B) 10, to reflect the 10-for-1 stock split effected by JRVR immediately prior to the closing of the initial public offering of Common Stock of JRVR on August 12, 2005.
(11) Automatic conversion of the Series B Convertible Preferred Stock is exempt under Rule 16b-6. Each share of Series B Convertible Preferred Stock automatically converted into shares of Common Stock of JRVR immediately prior to the closing of the initial public offering of Common Stock of JRVR on August 12, 2005. Each share of Series B Convertible Preferred Stock converted into a number of shares of Common Stock of JRVR equal to the product of (A) the quotient of (i) the sum of (x) $100, representing the purchase price of each share of Series B Convertible Preferred Stock, plus (y) all accrued and unpaid dividends thereon, divided by (ii) $100, multiplied by (B) 10, to reflect the 10-for-1 stock split effected by JRVR immediately prior to the closing of the initial public offering of Common Stock of JRVR on August 12, 2005.
(12) Represents shares of Convertible Preferred Stock held by Trident prior to the automatic conversion thereof.
(13) Represents shares of Convertible Preferred Stock held by CPF prior to the automatic conversion thereof.
(14) Represents shares of Convertible Preferred Stock held by ESC prior to the automatic conversion thereof.

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