FENNEC PHARMACEUTICALS INC. — Director's Dealing 2007

Mar 16, 2007

SEC Form 3/A — Form 3/A

Issuer: ADHEREX TECHNOLOGIES INC (AMEX:ADH)
CIK: 0001211583
Period of Report: 2007-02-21

Reporting Person: NORRIS ROBIN J (Director, President & COO)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	8100	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Options (Right to buy)	$0.28	2014-02-28	Common Stock (75000)		Direct
Stock Options (Right to buy)	$0.88	2012-12-14	Common Stock (45000)		Direct
Stock Options (Right to buy)	$1.2	2012-09-21	Common Stock (15000)		Direct
Stock Options (Right to buy)	$1.65	2008-12-12	Common Stock (120000)		Direct
Stock Options (Right to buy)	$1.7	2010-05-03	Common Stock (40000)		Direct
Stock Options (Right to buy)	$2.25	2010-12-30	Common Stock (75600)		Direct
Stock Options (Right to buy)	$2.9	2011-05-21	Common Stock (36400)		Direct

Footnotes

F5: This Form is being amended due to a miscalculation in the Exerciseable Date/Vesting schedule previously reported for these options.

F1: The options to which this note relates are subject to vesting in three (3) installments with one-third vesting immediately and the remaining shares vesting on the first and second anniversary of the Grant Date reported above.

F4: The options to which this note relates are subject to vesting in three (3) installments with (i) 10,000 vesting on 12/17/2004 (ii) 14,266 shares vesting on 5/21/2006; and (iii) the remaining shares vesting on 5/21/2007.

F2: The options to which this note relates vest in three (3) equal installments beginning on the date reported above.

F3: Exercise price for these options are in Canadian Dollars.