definiens: shall mean the Hart - Scott - Rodino Ant itrust Improvements Act of 1976, as amended, and th e rules promulgated thereunder . If needed each Party shall ( a ) cooperate with the other Party in the pre paration, execution and filing of all documents that may be r equired pursuant to HSR or any other Applicable Law, and ( b ) observe all applicable waiting periods before s uch [COMPANY] Antigen Option Right or [COMPANY] TCL Option Right is deemed to have been exercised, however for clari ty [COMPANY] will be deemed to have timely exercised su ch [COMPANY] Antigen Option Right or [COMPANY] TCL Option Righ t if [COMPANY] provides notice prior to expiration of t he relevant Option Period . Each Party shall bear its o wn costs ( including counsel or other expert fees ) w ith respect to preparing, executing and filing such documents . Subject to the terms and conditions of this Agreeme nt, each Party shall use all reasonable efforts to take, or cause to be taken, all reasonable actions and to do, or cause to be done, all things necessary and appropriate to consu mmate the exercise of the [COMPANY] Antigen Option Righ t and/or [COMPANY] TCL Option Right