Our headquarters are located at 645 Summer Street, 2nd Floor, Boston, MA 02210. Our main office number is (857) 254-1500.

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Our common stock is traded on the Nasdaq Global Market under the symbol “MASS”. Our initial public offering was on December 17, 2020.

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The CUSIP number for our common stock is 65443P 102.

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We effected a 1-for-1.6271 reverse stock split of our common stock on December 11, 2020.

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Shares of our common stock can be purchased by contacting a securities broker of your choice. We do not currently have a direct stock purchase plan.

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We do not currently offer a dividend reinvestment program and do not expect to declare or pay dividends on our common stock in the foreseeable future.

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Our transfer agent is Computershare Trust Company, N.A., and they can be contacted as follows:

Investor Centre website
www.computershare.com/investor

Telephone inquiries
(800) 736-3001 (US, Canada, Puerto Rico)
(781) 575-3100 (non-US)

Written requests:
Computershare
PO Box 43006
Providence, RI 02940-3006

By overnight delivery:
Computershare
150 Royall St., Suite 101
Canton, MA 02021

Email
[email protected]

Shareholder Online Inquiries
https://www-us.computershare.com/investor/Contact

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The Company’s fiscal year ends on December 31.

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Our outside legal counsel is:
Goodwin Procter LLP
100 Northern Avenue
Boston, MA 02201
(617) 570-1000

Our independent auditor is:
PricewaterhouseCoopers LLP
101 Seaport Boulevard
Boston, MA 02210
(617) 530-5000

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Quarterly and annual reports, as well as other SEC filings, can be accessed on the Financial Information - SEC Filings section of our Investors webpage or directly from the SEC at www.sec.gov.

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You can submit questions to our investor relations department by contacting [email protected].

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