Contact Us

Contact Us

Mailing Address

One Kendall Square, Suite B7201
Cambridge, MA 02139
Phone: 617-441-1000

For Media Inquiries, contact:

For Investor Inquiries, contact:

Geoffrey Grande, CFA

For Business Development Inquiries, please email:

Please report all safety concerns and product complaints immediately to Merrimack:

844-441-MACK (6225), ext 1
or to the FDA at

For healthcare providers seeking information about Merrimack's approved or investigational product:

844-441-MACK (6225), ext 2

Merrimack believes in being part of our community and giving back to it. To make a request for a charitable donation, please contact: