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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
CZIRR JAMES C
  2. Issuer Name and Ticker or Trading Symbol
PRO PHARMACEUTICALS INC [PRWP]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
425 JANISH DR
3. Date of Earliest Transaction (Month/Day/Year)
05/10/2010
(Street)

SANDPOINT, ID 83864
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ 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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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. SEC 1474 (9-02)

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 B-2 Convertible Preferred Stock $ 0.5 05/10/2010   P   285,000     (1)   (1) Common Stock 1,140,000 $ 2 (2) 2,100,000 I By 10X Fund, LP (3) (4)
Class A-1 Warrant (right to buy) $ 0.5 05/10/2010   P   1   05/10/2010 05/10/2015 Common Stock 570,000 (2) 11 I By 10X Fund, LP (3) (4)
Class A-2 Warrant (right to buy) $ 0.5 05/10/2010   P   1   05/10/2010 05/10/2015 Common Stock 570,000 (2) 11 I By 10X Fund, LP (3) (4)
Class B Warrant (right to buy) $ 0.5 05/10/2010   P   1   05/10/2010 05/10/2015 Common Stock 2,280,000 (2) 11 I By 10X Fund, LP (3) (4)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
CZIRR JAMES C
425 JANISH DR
SANDPOINT, ID 83864
  X   X    

Signatures

 Robert J. Mottern, as attorney in fact for James C. Czirr   05/11/2010
**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) Each share of Series B-2 Convertible Preferred Stock is convertible into four shares of Issuer's common stock at a conversion price of $0.50 per share (subject to customary anti-dilution protection adjustments) at the option of (a) the holder, at any time and (b) Issuer, at any time after May 10, 2011 (and upon 10 days notice) if the Issuer's common stock is quoted at or above $1.50 per share for 15 consecutive trading days and an effective registration statement regarding the underlying shares of Issuer's common stock is in effect (subject to certain monthly volume limits). The shares of Series B-2 Convertible Preferred Stock do not expire.
(2) On April 30, 2010, 10X Fund, L.P. purchased (a) 285,000 shares of Series B-2 Preferred Stock, (b) one Class A-1 Warrant to purchase 570,000 shares of Common Stock for $0.50 per share, (c) one Class A-2 Warrant to purchase 570,000 shares of Common Stock for $0.50 per share, and (d) one Class B Warrant to purchase 2,280,000 shares of Common Stock for $0.50 per share, for aggregate consideration of $570,000.
(3) Reporting Person is a managing member of 10X Capital Management, LLC, a Florida limited liability company acting as the general partner of 10X Fund, L.P., a Delaware limited partnership, and as such, may be deemed to have indirect beneficial ownership of all or a portion of the securities owned directly by 10X Fund, L.P., such portion being equal to 10X Capital Management, LLC's (a) 20% interest in the profits of 10X Fund, L.P., (b) interest in any securities which are used to pay a 2% annual management fee to 10X Capital Management, LLC, and (c) interest in one-half of the Class B Warrants acquired by 10X Fund, L.P. in all closings other than the initial closing held on February 12, 2009, less one Class B Warrant which 10X Capital Management, LLC has committed to reallocate to investors in all prior closings until each such investor has one (1) additional Class B Warrant for each dollar invested.
(4) Any such deemed indirect beneficial ownership may also be reduced by Mr. Czirr's proportional ownership in 10X Capital Management, LLC. Mr. Czirr disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.