SEC Form 4 · accession 0001104659-18-051027

Quanterix Corp · QTRX

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Keith Crandell

Director · 10% Owner

Period of report

Aug 7, 2018

Accepted (ET)

Aug 9, 2018 · 8:12 pm EDT

Rule 10b5-1 plan

unknown — predates the checkbox

Issuer CIK

0001503274

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I	Nature of ownership
Common Stock^F1,F2	Aug 7, 2018	A	2,270	$0.00	A	2,270	D
Common Stock^F3	holding	—	—		—	2,412,001	I	Held by ARCH Venture Fund VI, L.P.
Common Stock^F4	holding	—	—		—	1,537,684	I	Held by ARCH Venture Fund VIII Overage, L.P.

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Stock Option (Right to Buy)	$14.80	Aug 7, 2018	A	7,900	A	Dec 31, 2018	Aug 7, 2028	Common Stock	7,900	7,900	D

Explanation of responses

F1Represents restricted stock units that vest as to 100% of the shares on December 31, 2018. Each restricted stock unit represents the right to receive one share of the Issuer's common stock.
F2Represents 2,270 restricted stock units.
F3The shares are held of record by ARCH Venture Fund VI, L.P. ("ARCH Fund VI"). The sole general partner of ARCH Fund VI is ARCH Venture Partners VI, L.P. ("ARCH Partners VI"), which may be deemed to beneficially own the shares held by ARCH Fund VI. The sole general partner of ARCH Partners VI is ARCH Venture Partners VI, LLC ("ARCH VI LLC"), which may be deemed to beneficially own the shares held by ARCH Fund VI. ARCH Partners VI and ARCH VI LLC disclaim beneficial ownership of such shares, except to the extent of any pecuniary interest therein. As a managing director of ARCH VI LLC, the Reporting Person may be deemed to beneficially own the shares held by ARCH Fund VI. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein.
F4The shares are held of record by ARCH Venture Fund VIII Overage, L.P. ("ARCH Fund Overage"). The sole general partner of ARCH Fund Overage is ARCH Venture Partners VIII, LLC ("ARCH VIII LLC"), which may be deemed to beneficially own the shares held by ARCH Fund Overage. ARCH VIII LLC disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein. As a managing director of ARCH VIII LLC, the Reporting Person may be deemed to beneficially own the shares held by ARCH Fund Overage. The Reporting Person disclaims beneficial ownership of such shares, except to the extent of any pecuniary interest therein.