Darwin Professional Underwriters Inc - Statement of Changes in Beneficial Ownership (4)

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	OMB APPROVAL OMB Number: 3235-0287 Expires: February 28, 2011 Estimated average burden hours per response... 0.5
	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(f) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * Sills Stephen Jay	2. Issuer Name and Ticker or Trading Symbol Darwin Professional Underwriters Inc [ DR ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __ X __ Director                      _____ 10% Owner __ X __ Officer (give title below)      _____ Other (specify below) President and CEO
(Last)          (First)          (Middle) 9 FARM SPRINGS ROAD	3. Date of Earliest Transaction (MM/DD/YYYY) 5/29/2008
(Street) FARMINGTON, CT 06032 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _ X _ Form filed by One Reporting Person ___ 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. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	5/29/2008	6/3/2008	J (1)		180000	D	(1)	274018	D
Common Stock								461205	I	By trusts   (2)
Common Stock								1000	I	By child   (3)
Common Stock								900	I	By child   (3)
Common Stock								900	I	By reporting person as UTMA custodian   (3)
Common Stock								1050	I	By child   (3)

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		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 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

Explanation of Responses:
( 1)	Transaction being reported is the May 29, 2008 transfer of 180,000 shares of common stock, previously owned by the reporting person directly, in an exempt transaction under Rule 16a-13 to his 2008 GRAT. The reporting person is filing this report to reflect such change in form of ownership, being an increase of 180,000 shares owned by the reporting person indirectly through his 2008 GRAT and a corresponding decrease of 180,000 shares owned by the reporting person directly.
( 2)	Held by grantor annuity trusts (2006 GRAT, 2007 GRAT and 2008 GRAT), as to each of which the reporting person is the sole trustee.
( 3)	Reporting person disclaims beneficial ownership of these shares.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Sills Stephen Jay 9 FARM SPRINGS ROAD FARMINGTON, CT 06032	X		President and CEO

Signatures
Stephen J. Sills by Timothy J. Curry attorney-in-fact		6/5/2008
** 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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