Common use of Counterparts; Interpretation Clause in Contracts

Counterparts; Interpretation. This letter agreement may be executed in two or more counterparts (including via facsimile), each of which shall be deemed an original but all of which together shall be considered one and the same agreement. For purposes of this letter agreement, the term “including” shall mean “including, without limitation”. Very truly yours, Momenta Pharmaceuticals, Inc. By: /s/ Xxxxx X. Xxxxxxx Name: Xxxxx X. Xxxxxxx Title: President and Chief Executive Officer Agreed and Accepted: /s/ Xxx Xxxx Xxx Xxxx

Counterparts; Interpretation. This letter agreement may be executed in two or more counterparts (including via facsimile), each of which shall be deemed an original but all of which together shall be considered one and the same agreement. For purposes of this letter agreement, the term “including” shall mean “including, without limitation”. Very truly yours, Momenta Pharmaceuticals, ,Inc. By: /s/ Xxxxx Cxxxx X. Xxxxxxx Name: Xxxxx Cxxxx X. Xxxxxxx Title: President and Chief Executive Officer Agreed and Accepted: /s/ Xxx Xxxx Xxx XxxxSxxxxxxx Xxxxxx Sxxxxxxx Xxxxxx

Counterparts; Interpretation. This letter agreement may be executed in two or more counterparts (including via facsimile), each of which shall be deemed an original but all of which together shall be considered one and the same agreement. For purposes of this letter agreement, the term “including” shall mean “including, without limitation”. Very truly yours, Momenta Pharmaceuticals, Inc. By: /s/ Xxxxx X. Xxxxxxx Name: Xxxxx X. Xxxxxxx Title: President and Chief Executive Officer Agreed and Accepted: /s/ Xx-Xxx Xxxx Xxxxxxxxxxx Xx-Xxx XxxxBeltramello

Counterparts; Interpretation. This letter agreement may be executed in two or more counterparts (including via facsimile), each of which shall be deemed an original but all of which together shall be considered one and the same agreement. For purposes of this letter agreement, the term “including” shall mean “including, without limitation”. Very truly yours, Momenta Pharmaceuticals, Inc. By: /s/ Xxxxx X. Xxxxxxx Name: Xxxxx X. Xxxxxxx Title: President and Chief Executive Officer Agreed and Accepted: /s/ Xxx Xxxx Xxx XxxxXxxxxxxxx Xxxxxxxx Xxxxxxxxx Xxxxxxxx

Counterparts; Interpretation. This letter agreement may be executed in two or more counterparts (including via facsimile), each of which shall be deemed an original but all of which together shall be considered one and the same agreement. For purposes of this letter agreement, the term “including” shall mean “including, without limitation”. Very truly yours, Momenta Pharmaceuticals, Inc. By: /s/ Xxxxx Cxxxx X. Xxxxxxx Name: Xxxxx Cxxxx X. Xxxxxxx Title: President and Chief Executive Officer Agreed and Accepted: /s/ Xxx Xxxx Xxx XxxxAxxxxxx Xxxxxxx Axxxxxx Xxxxxxx