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 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 *
Aurora Advisors II LLC
   2. Issuer Name and Ticker or Trading Symbol
DOUGLAS DYNAMICS, INC [PLOW] 		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)
10877 WILSHIRE BLVD., SUITE 2100		 3. Date of Earliest Transaction (Month/Day/Year)
05/10/2010
(Street)

LOS ANGELES, CA 90024		 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 05/10/2010   S   1,651,896 (1) D $ 10.49 5,473,103 (2) (3) (4) D  
Series B Preferred Stock 05/10/2010   S   1 (5) D $ 1,000 0 D  
Common Stock 05/10/2010   S   6,883 D $ 10.49 22,804 (6) D  
Common Stock 05/10/2010   S   2,753 D $ 10.49 9,122 (7) 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
Aurora Advisors II LLC
10877 WILSHIRE BLVD.
SUITE 2100
LOS ANGELES, CA 90024		     X    
AURORA CAPITAL PARTNERS II L P
10877 WILSHIRE BLVD.
SUITE 2100
LOS ANGELES, CA 90024		     X    
Aurora Equity Partners II LP
10877 WILSHIRE BLVD.
SUITE 2100
LOS ANGELES, CA 90024		     X    
Aurora Overseas Advisors II LDC
10877 WILSHIRE BLVD.
SUITE 2100
LOS ANGELES, CA 90024		     X    
Aurora Overseas Capital Partners II LP
10877 WILSHIRE BLVD.
SUITE 2100
LOS ANGELES, CA 90024		     X    
Aurora Overseas Equity Partners II LP
10877 WILSHIRE BLVD.
SUITE 2100
LOS ANGELES, CA 90024		     X    
Mapes John T
C/O AURORA EQUITY PARTNERS II LP
10877 WILSHIRE BLVD. SUITE 2100
LOS ANGELES, CA 90024		     X    
PARSKY GERALD L
C/O AURORA EQUITY PARTNERS II LP
10877 WILSHIRE BLVD. SUITE 2100
LOS ANGELES, CA 90024		     X    

Signatures

 /s/ Timothy J. Hart as Vice President, Secretary and General Counsel of Aurora Advisors II LLC   05/12/2010
**Signature of Reporting Person Date
 /s/ Timothy J. Hart as Vice President, Secretary and General Counsel of Aurora Advisors II LLC, General Partner of Aurora Capital Partners II LP   05/12/2010
**Signature of Reporting Person Date
 /s/ Timothy J. Hart as Vice President, Secretary and General Counsel of Aurora Advisors II LLC, General Partner of Aurora Capital Partners II LP, General Partner of Aurora Equity Partners II LP   05/12/2010
**Signature of Reporting Person Date
 /s/ Timothy J. Hart as Vice President, Secretary and General Counsel of Aurora Overseas Advisors II, LDC   05/12/2010
**Signature of Reporting Person Date
 /s/ Timothy J. Hart as Vice President, Secretary and General Counsel of Aurora Overseas Advisors II, LDC, General Partner of Aurora Overseas Capital Partners II, LP   05/12/2010
**Signature of Reporting Person Date
 /s/ Timothy J. Hart as Vice President, Secretary and General Counsel of Aurora Overseas Advisors II, LDC, General Partner of Aurora Overseas Capital Partners, LP, General Partner of Aurora Overseas Equity Partners II, LP   05/12/2010
**Signature of Reporting Person Date
 /s/ Timothy J. Hart as Attorney-in-Fact for John T. Mapes   05/12/2010
**Signature of Reporting Person Date
 /s/ Timothy J. Hart as Attorney-in-Fact for Gerald L. Parsky   05/12/2010
**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) Consists of 1,630,256 shares sold by Aurora Equity Partners II L.P. ("AEPII") and 21,640 shares sold by Aurora Overseas Equity Partners II, L.P. ("AOEPII").
(2) Consists of 5,401,406 shares held by AEPII and 71,697 shares held by AOEPII.
(3) Aurora Capital Partners II LP ("ACPII") is the general partner of AEPII. Aurora Overseas Capital Partners II, LP ("AOCPII") is the general partner of AOEPII. Aurora Advisors II LLC ("AAII") is the general partner of ACPII. Aurora Overseas Advisors II, LDC ("AOAII") is the general partner of AOCPII. AEPII, AOEPII, ACPII, AOCPII, AAII, and AOAII are collectively referred to as the "Aurora Entities." In their capacities as direct or indirect general partners of AEPII and/or AOEPII, ACPII, AOCPII, AAII, and AOAII may be deemed to have a pecuniary interest in an indeterminable portion of the shares owned or controlled by AEPII and AOEPII. ACPII, AOCPII, AAII, and AOAII disclaim beneficial ownership of all such shares except to the extent that they may be deemed to have a pecuniary interest therein.
(4) Mssrs. Mapes and Parsky are controlling persons of the Aurora Entities. As such, they may be deemed to have a pecuniary interest in an indeterminable portion of the shares owned or controlled by the Aurora Entities. Mssrs. Mapes and Parsky disclaim beneficial ownership of all such shares except to the extent that they may be deemed to have a pecuniary interest therein.
(5) This share was sold by AEPII.
(6) These securities are owned solely by Mr. Parsky through a 401(k) account.
(7) These securities are owned solely by Mr. Mapes through a 401(k) account.

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