FORM 3
        
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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
                      

1. Name and Address of Reporting Person *

Royal DSM N.V.

2. Date of Event Requiring Statement (MM/DD/YYYY)
2/18/2011 

3. Issuer Name and Ticker or Trading Symbol

MARTEK BIOSCIENCES CORP [MATK]

(Last)        (First)        (Middle)

HET OVERLOON 1

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                            ___ X ___ 10% Owner
_____ Officer (give title below)          _____ Other (specify below)

(Street)

HEERLEN, P7 6411 TE       

(City)              (State)              (Zip)
5. 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 Beneficially Owned
1.Title of Security
(Instr. 4) 		2. Amount of Securities Beneficially Owned
(Instr. 4) 		3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5) 		4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock   29779920   I   (1) See Footnote   (1)

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 4) 		2. Date Exercisable and Expiration Date
(MM/DD/YYYY) 		3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4) 		4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5) 		6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Explanation of Responses:
( 1)  The Reporting Person is filing this Form 3 on behalf of itself and on behalf of Greenback Acquisition Corporation ("Greenback"), a Delaware corporation and an indirect wholly owned subsidiary of the Reporting Person, with principal executive offices located at 45 Waterview Blvd., Parsippany, NJ 07054. The shares of common stock to which this Form 3 relates were acquired by Greenback in a tender offer for all outstanding shares of common stock of Martek Biosciences Corporation, upon the terms and subject to the conditions set forth in the Offer to Purchase dated January 13, 2011, which was annexed to and filed with the Schedule TO filed by the Reporting Person with the Securities and Exchange Commission on January 13, 2011.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Royal DSM N.V.
HET OVERLOON 1
HEERLEN, P7 6411 TE
X


Signatures
Hugh C. Welsh, President and General Counsel, DSM North America 2/24/2011
** 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 5(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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.
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