“Sale” or “sell” shall have the full meaning of that term as applied by or accepted in the courts of this State, and shall include every contract of sale or disposition of a security or interest in a security for value. Any security given with or as a bonus on account of any purchase of securities or property shall be conclusively presumed to constitute a part of the subject of such purchase and shall be deemed to have been sold within the meaning of this Section. A privilege to convert a security into another security shall not be deemed a sale of such other security, provided no consideration from the holder in addition to the surrender or cancellation of the convertible security is required to effect the conversion.