Quanterix Corp — Director's Dealing 2018

May 15, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Quanterix Corp (QTRX)
CIK: 0001503274
Period of Report: 2018-05-10

Reporting Person: Orticerio Ernest (SVP Finance and Corporate Dev)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-10	Common Stock	A	7131	—	Acquired	53802	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-05-10	Stock Option (right to buy)	$19.12	A	24311	Acquired	2028-05-10	Common Stock (24311)	Direct

Footnotes

F1: Represents shares of common stock issuable upon vesting of restricted stock units. The restricted stock units vest as to 25% of the shares on May 10, 2019 and vest as to an additional 2.083% of the shares per month for 36 months thereafter.

F2: Represents 46,671 shares of common stock and 7,131 restricted stock units.

F3: The option vests as to 25% of the shares on May 10, 2019 and vests as to an additional 2.083% of the shares per month for 36 months thereafter.