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

INITIAL STATEMENT OF 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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1. Name and Address of Reporting Person*
Butts Robert W
(Last) (First) (Middle)
4620 CREEKSTONE DRIVE, SUITE 200
(Street)
DURHAM NC 27703
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
04/27/2007 		3. Issuer Name and Ticker or Trading Symbol
ADHEREX TECHNOLOGIES INC [ AMEX:ADH ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of 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
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 41,504,000(1) I Southpoint Master Fund LP(2)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: 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
Warrants (Right to buy) 02/21/2007 02/21/2010 Common Stock 20,752,000(1) 0.4 I Southpoint Master Fund LP(2)
Explanation of Responses:
1. The filing of this Form 3 shall not be construed as an admission that Robert W. Butts is or was for the purposes of Section 16(a) of the Securities Exchange act of 1934, as amended, or otherwise the beneficial owner of any of the shares of common stock ("Common Stock") or warrants to purchase Common Stock ("Warrants") of Adherex Technologies Inc. owned by Southpoint Master Fund, LP. Pursuant to Rule 16a-1, Robert W. Butts disclaims such beneficial ownership.
2. Southpoint GP, LP, and its general partner Southpoint GP LLC, hold indirectly shares of Common Stock and Warrants to purchase Common Stock on behalf of Southpoint Master Fund, LP, of which Southpoint GP, LP is the general partner. Southpoint Capital Advisors LP, and its general partner Southpoint Capital Advisors LLC, hold indirectly shares of Common Stock and Warrants to purchase Common Stock on behalf of Southpoint Master Fund, LP, for which Southpoint Capital Advisors LP serves as an investment manager. Robert W. Butts reports the shares and warrants held indirectly held by Southpoint GP LLC and Southpoint Capital Advisors LLC because, as a manager of Southpoint GP LLC and Southpoint Capital Advisors LLC at the time of purchase, he controlled part of the voting and disposition of the securities.
D. Scott Murray, Attorney-in-Fact 05/07/2007
** 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 Number.
POWER OF ATTORNEY

   Know all by these presents that the undersigned hereby constitutes and
appoints each of D. Scott Murray, James A. Klein, Jr. and Donald R. Reynolds,
and each of them acting alone, signing singly, the undersigned's true and
lawful attorney-in-fact to: (1) execute for and on behalf of the undersigned,
in the undersigned's capacity as an officer, director and/or 10% or more
stockholder of Adherex Technologies, Inc. (the "Company"), Forms ID, 3,
4 and 5 and Schedules 13D or 13G (and any amendments thereto) under Section
13(d) and 16(a) of the Securities Exchange Act of 1934, as amended (the
"1934 Act") in accordance with the 1934 Act, and the rules promulgated
thereunder; (2) do and perform any and all acts for and on behalf of
the undersigned which may be necessary or desirable to complete and execute
any such Form or Schedule (and any amendments thereto) and to file timely
such Form or Schedule with the United States Securities and Exchange
Commission and any stock exchange or similar authority; and (3) take a
ny other action of any type whatsoever in connection with the foregoing
which in the opinion of such attorney-in-fact may be of benefit to, in the
best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf
of the undersigned pursuant to this Power of Attorney shall be in such
form and shall contain such terms and conditions as such attorney-in-fact
may approve in such attorney-in-fact's discretion.

   The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of substitution or
revocation, hereby ratifying and confirming all that such attorney-in-fact,
or such attorney-in-fact's substitute or substitutes, shall lawfully do or
cause to be done by virtue of this power of attorney and the rights and powers
herein granted.  The undersigned acknowledges that the foregoing attorneys-
in-fact, in serving in such capacity at the request of the undersigned, are
not assuming, nor is the Company assuming, any of the undersigned's
responsibilities to comply with Section 13(d) or 16(a) of the 1934 Act.

   This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file such Forms or Schedules with respect
to the undersigned's holdings of and transactions in securities issued by the
Company, unless earlier revoked by the undersigned in a signed writing
delivered to each of the foregoing attorneys-in-fact.

   IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 4th day of May 2007.

                                          /s/ Robert W. Butts