QTRX

SEC source: 0001562180-21-005417 · primarydocument.xml · nonDerivative · entry 2

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 928,619

F1 · shares: The sale of shares was effected pursuant to a 10b5-1 trading plan adopted on December 14, 2020.

F4 · price: This transaction was executed in multiple trades at prices ranging from $47.81 to $48.28. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 89,309 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-005417 · primarydocument.xml · nonDerivative · entry 1

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 929,419

F1 · shares: The sale of shares was effected pursuant to a 10b5-1 trading plan adopted on December 14, 2020.

F2 · price: This transaction was executed in multiple trades at prices ranging from $46.72 to $47.45. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 89,309 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-006302 · primarydocument.xml · nonDerivative · entry 3

CRANDELL KEITH · CIK 0001219039 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,804

F1 · kind: Distribution of Common Stock held by a limited partnership to its partners for no consideration.

F4 · kind: Change from indirect to direct ownership of shares previously reported as beneficially owned by the Reporting Person.

SEC source: 0001562180-21-006302 · primarydocument.xml · nonDerivative · entry 2

CRANDELL KEITH · CIK 0001219039 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 354,381

F1 · kind: Distribution of Common Stock held by a limited partnership to its partners for no consideration.

F3 · ownership.nature: These shares are directly held by ARCH Venture Fund VIII Overage, L.P. ("ARCH Overage"). ARCH Venture Partners VIII, LLC ("ARCH VIII LLC") the sole general partner of ARCH Overage, may be deemed to beneficially own the shares held by ARCH Overage. The Reporting Person is a managing director of the ARCH VIII LLC and shares voting and investment control with respect to these shares. The Reporting Person may be deemed to beneficially own the shares held by ARCH Overage. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001562180-21-006302 · primarydocument.xml · nonDerivative · entry 1

CRANDELL KEITH · CIK 0001219039 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 555,869

F1 · kind: Distribution of Common Stock held by a limited partnership to its partners for no consideration.

F2 · ownership.nature: These shares are directly held by ARCH Venture Fund VI, L.P. ("ARCH VI"). ARCH Venture Partners VI, L.P. ("GPLP"), the sole general partner of ARCH VI, may be deemed to beneficially own the shares held by ARCH VI. ARCH Venture Partners VI, LLC ("GPLLC"), as the sole general partner of GPLP, may be deemed to beneficially own the shares held by ARCH VI. The Reporting Person is a managing director of the GPLLC and shares voting and investment control with respect to these shares. The Reporting Person may be deemed to beneficially own the shares held by ARCH VI. The Reporting Person disclaims beneficial ownership of the securities reported herein, except to the extent of his pecuniary interest therein, if any.

SEC source: 0001562180-21-005150 · primarydocument.xml · nonDerivative · entry 1

Fry John J · CIK 0001419544 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,699

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 700 RSUs.

F2 · price: This transaction was executed in multiple trades at prices ranging from $53.43 to $53.99. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 20,970 restricted stock units

SEC source: 0001562180-21-005151 · primarydocument.xml · nonDerivative · entry 1

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 933,619

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 7,935 RSUs.

F2 · price: This transaction was executed in multiple trades at prices ranging from $53.43 to $53.99. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 89,309 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-005149 · primarydocument.xml · nonDerivative · entry 1

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,543

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 750 RSUs.

F2 · price: This transaction was executed in multiple trades at prices ranging from $53.43 to $53.99. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 16,216 restricted stock units.

SEC source: 0001562180-21-005148 · primarydocument.xml · nonDerivative · entry 1

Roskey Mark T. · CIK 0001724565 · SVP, Strategic Partnerships

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,845

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 472 RSUs.

F2 · price: This transaction was executed in multiple trades at prices ranging from $53.43 to $53.99. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 12,821 restricted stock units

SEC source: 0001562180-21-005093 · primarydocument.xml · nonDerivative · entry 2

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 937,267

F1 · shares: The sale of shares was effected pursuant to a 10b5-1 trading plan adopted on December 14, 2020.

F4 · price: This transaction was executed in multiple trades at prices ranging from $54.03 to $54.60. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 97,244 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-005093 · primarydocument.xml · nonDerivative · entry 1

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 940,350

F1 · shares: The sale of shares was effected pursuant to a 10b5-1 trading plan adopted on December 14, 2020.

F2 · price: This transaction was executed in multiple trades at prices ranging from $53.03 to $54.02. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 97,244 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-004938 · primarydocument.xml · nonDerivative · entry 1

Duffy David C. · CIK 0001724566 · SVP R&D and CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,617

F1 · shares: The sale of shares reported on this Form 4 was made pursuant to a Rule 10b5-1 trading plan adopted on March 8, 2021.

F2 · balance_after: Includes 9,849 restricted stock units.

SEC source: 0001562180-21-004937 · primarydocument.xml · nonDerivative · entry 2

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 942,267

F1 · shares: The sale of shares was effected pursuant to a 10b5-1 trading plan adopted on December 14, 2020.

F4 · price: This transaction was executed in multiple trades at prices ranging from $57.70 to $58.24. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 97,244 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-004937 · primarydocument.xml · nonDerivative · entry 1

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 944,018

F1 · shares: The sale of shares was effected pursuant to a 10b5-1 trading plan adopted on December 14, 2020.

F2 · price: This transaction was executed in multiple trades at prices ranging from $56.58 to $57.55. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 97,244 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-004914 · primarydocument.xml · derivative · entry 2

DOYLE MICHAEL A · CIK 0001284533 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,904

Underlying: Common Stock · 12,904 shares

Expires 2031-07-12

F3 · derivative.exercise_date: The option vests as to 25% of the shares on July 12, 2022, and the remaining 75% vests in 36 equal monthly installments at the end of each month beginning on July 31, 2022.

SEC source: 0001562180-21-004914 · primarydocument.xml · nonDerivative · entry 1

DOYLE MICHAEL A · CIK 0001284533 · CFO and Treasurer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,530

F1 · shares: Represents shares of stock issuable on vesting of restricted stock units. The restricted stock units vest as to 25% of the shares on July 12, 2022, and the remaining 75% vest in 36 equal monthly installments at the end of each month beginning on July 31, 2022.

F2 · balance_after: Includes 5,530 restricted stock units.

SEC source: 0001562180-21-004768 · primarydocument.xml · nonDerivative · entry 3

Fry John J · CIK 0001419544 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,043

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 700 RSUs.

F5 · price: This transaction was executed in multiple trades at prices ranging from $59.17 to $59.51. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 21,670 restricted stock units

SEC source: 0001562180-21-004768 · primarydocument.xml · nonDerivative · entry 2

Fry John J · CIK 0001419544 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,170

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 700 RSUs.

F4 · price: This transaction was executed in multiple trades at prices ranging from $58.17 to $59.03. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 21,670 restricted stock units

SEC source: 0001562180-21-004768 · primarydocument.xml · nonDerivative · entry 1

Fry John J · CIK 0001419544 · General Counsel & Secretary

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,222

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 700 RSUs.

F2 · price: This transaction was executed in multiple trades at prices ranging from $57.13 to $58.11. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 21,670 restricted stock units

SEC source: 0001562180-21-004774 · primarydocument.xml · nonDerivative · entry 3

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 947,267

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 7,935 RSUs.

F5 · price: This transaction was executed in multiple trades at prices ranging from $59.17 to $59.51. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 97,244 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-004774 · primarydocument.xml · nonDerivative · entry 2

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 948,609

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 7,935 RSUs.

F4 · price: This transaction was executed in multiple trades at prices ranging from $58.17 to $59.03. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 97,244 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-004774 · primarydocument.xml · nonDerivative · entry 1

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 949,158

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 7,935 RSUs.

F2 · price: This transaction was executed in multiple trades at prices ranging from $57.13 to $58.11. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 97,244 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-004775 · primarydocument.xml · nonDerivative · entry 7

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,889

F6 · kind: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 750 RSUs.

F9 · price: This transaction was executed in multiple trades at prices ranging from $59.17 to $59.51. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 16,966 restricted stock units.

SEC source: 0001562180-21-004775 · primarydocument.xml · nonDerivative · entry 6

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,016

F6 · kind: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 750 RSUs.

F8 · price: This transaction was executed in multiple trades at prices ranging from $58.17 to $59.03. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 16,966 restricted stock units.

SEC source: 0001562180-21-004775 · primarydocument.xml · nonDerivative · entry 5

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,068

F6 · kind: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 750 RSUs.

F7 · price: This transaction was executed in multiple trades at prices ranging from $57.13 to $58.11. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 16,966 restricted stock units.

SEC source: 0001562180-21-004766 · primarydocument.xml · nonDerivative · entry 3

Roskey Mark T. · CIK 0001724565 · SVP, Strategic Partnerships

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,990

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 472 RSUs.

F5 · price: This transaction was executed in multiple trades at prices ranging from $59.17 to $59.51. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 13,293 restricted stock units

SEC source: 0001562180-21-004766 · primarydocument.xml · nonDerivative · entry 2

Roskey Mark T. · CIK 0001724565 · SVP, Strategic Partnerships

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,044

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 472 RSUs.

F4 · price: This transaction was executed in multiple trades at prices ranging from $58.17 to $59.03. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 13,293 restricted stock units

SEC source: 0001562180-21-004766 · primarydocument.xml · nonDerivative · entry 1

Roskey Mark T. · CIK 0001724565 · SVP, Strategic Partnerships

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,066

F1 · shares: The sales of shares reported on this Form 4 were made solely to cover tax obligations upon the vesting of 472 RSUs.

F2 · price: This transaction was executed in multiple trades at prices ranging from $57.13 to $58.11. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 13,293 restricted stock units

SEC source: 0001562180-21-004770 · primarydocument.xml · nonDerivative · entry 1

MEISTER PAUL M · CIK 0001033876 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,661

F1 · shares: Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the second quarter of 2021.

F2 · price: Closing price of the Company's common stock on the Nasdaq Global Market on July 1, 2021.

F3 · balance_after: Includes 2,270 restricted stock units.

SEC source: 0001562180-21-004772 · primarydocument.xml · nonDerivative · entry 1

Hlavinka Sarah E. · CIK 0001433554 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,660

F1 · shares: Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the second quarter of 2021.

F2 · price: Closing price of the Company's common stock on the Nasdaq Global Market on July 1, 2021.

F3 · balance_after: Includes 5,297 restricted stock units.

SEC source: 0001562180-21-004771 · primarydocument.xml · nonDerivative · entry 1

Madaus Martin D · CIK 0001310268 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,994

F1 · shares: Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the second quarter of 2021.

F2 · price: Closing price of the Company's common stock on the Nasdaq Global Market on July 1, 2021.

F3 · balance_after: Includes 2,270 restricted stock units.

SEC source: 0001104659-21-089485 · tm2121524-2_4seq1.xml · nonDerivative · entry 10

CRANDELL KEITH · CIK 0001219039 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,852

F5 · shares: Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the second quarter of 2021.

F6 · price: Closing price of the Company's common stock on the Nasdaq Global Market on July 1, 2021.

F7 · balance_after: Includes 2,270 restricted stock units.

SEC source: 0001562180-21-004775 · primarydocument.xml · derivative · entry 8

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,070

Underlying: Common Stock · 9,806 shares

Expires 2028-02-23

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F10 · derivative.exercise_date: The option vests as to 25% of the shares on February 23, 2019 and vests as to an additional 2.083% of the shares per month for 36 months thereafter.

SEC source: 0001562180-21-004775 · primarydocument.xml · nonDerivative · entry 4

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,236

F2 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted on March 15, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $58.64 to $59.27. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 16,966 restricted stock units.

SEC source: 0001562180-21-004775 · primarydocument.xml · nonDerivative · entry 3

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,597

F2 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted on March 15, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $57.57 to $58.52. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F3 · balance_after: Includes 16,966 restricted stock units.

SEC source: 0001562180-21-004775 · primarydocument.xml · nonDerivative · entry 2

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,690

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · balance_after: Includes 16,966 restricted stock units.

SEC source: 0001562180-21-004769 · primarydocument.xml · nonDerivative · entry 1

OLSON LAURIE J · CIK 0001553231 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,644

F1 · shares: Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the second quarter of 2021.

F2 · price: Closing price of the Company's common stock on the Nasdaq Global Market on July 1, 2021.

F3 · balance_after: Includes 4,540 restricted stock units.

SEC source: 0001562180-21-004450 · primarydocument.xml · nonDerivative · entry 1

Duffy David C. · CIK 0001724566 · SVP R&D and CTO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,284

F1 · shares: The sale of shares reported on this Form 4 was made pursuant to a Rule 10b5-1 trading plan adopted on March 8, 2021.

F2 · balance_after: Includes 10,215 restricted stock units.

SEC source: 0001562180-21-004775 · primarydocument.xml · nonDerivative · entry 1

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,884

F1 · deemedExecutionDate: The reporting person was not informed of this transaction until June 30, 2021. However, under SEC rules, the deemed execution date is the third trading day following the date of the transaction.

F2 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted on March 15, 2021.

SEC source: 0001562180-21-004294 · primarydocument.xml · nonDerivative · entry 2

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 950,925

F1 · shares: The sale of shares was effected pursuant to a 10b5-1 trading plan adopted on December 14, 2020.

F2 · balance_after: Includes 105,179 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-004294 · primarydocument.xml · nonDerivative · entry 1

HRUSOVSKY E KEVIN · CIK 0001252546 · Director · Chairman, President & CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 951,081

F1 · shares: The sale of shares was effected pursuant to a 10b5-1 trading plan adopted on December 14, 2020.

F2 · balance_after: Includes 105,179 restricted stock units and 39,815 shares of common stock that are subject to performance based vesting.

SEC source: 0001562180-21-004228 · primarydocument.xml · nonDerivative · entry 1

Toloue Masoud · CIK 0001867276 · President, Quanterix & Dx

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,703

F1 · shares: Represents shares of stock issuable upon vesting of restricted stock units (RSUs). The RSUs vest as to 1/3 of the shares on June 9, 2022, with the remaining 2/3 vesting in 24 equal monthly installments at the end of each month thereafter beginning on June 30, 2022.

F2 · balance_after: Includes 50,703 restricted stock units.

SEC source: 0001562180-21-004128 · primarydocument.xml · derivative · entry 9

DEKKERS MARIJN E · CIK 0001216068 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,732 shares

Expires 2030-01-02

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001562180-21-004128 · primarydocument.xml · nonDerivative · entry 6

DEKKERS MARIJN E · CIK 0001216068 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,270

F2 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted on March 12, 2021.

F5 · price: This transaction was executed in multiple trades at prices ranging from $56.17 to $56.41. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F1 · balance_after: Includes 2,270 restricted stock units.

SEC source: 0001562180-21-004128 · primarydocument.xml · nonDerivative · entry 5

DEKKERS MARIJN E · CIK 0001216068 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,961

F2 · kind: The sale of shares was effected pursuant to a Rule 10b5-1 trading plan adopted on March 12, 2021.

F4 · price: This transaction was executed in multiple trades at prices ranging from $55.17 to $56.16. The price reported reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or any security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F1 · balance_after: Includes 2,270 restricted stock units.

SEC source: 0001562180-21-004128 · primarydocument.xml · nonDerivative · entry 4

DEKKERS MARIJN E · CIK 0001216068 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,321

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 2,270 restricted stock units.

SEC source: 0001562180-21-004150 · primarydocument.xml · derivative · entry 10

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,275

Underlying: Common Stock · 4,906 shares

Expires 2028-05-10

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: 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.

SEC source: 0001562180-21-004150 · primarydocument.xml · derivative · entry 9

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,876

Underlying: Common Stock · 8,124 shares

Expires 2028-02-23

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_date: The option vests as to 25% of the shares on February 23, 2019 and vests as to an additional 2.083% of the shares per month for 36 months thereafter.

SEC source: 0001562180-21-004150 · primarydocument.xml · derivative · entry 8

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,304

Underlying: Common Stock · 3,336 shares

Expires 2029-03-12

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The option vests as to 25% of the shares on March 12, 2020 and vests as to an additional 2.083% of the shares per month for 36 months thereafter.

SEC source: 0001562180-21-004150 · primarydocument.xml · derivative · entry 7

Mattoon Dawn · CIK 0001731785 · Sr. VP, Diagnostics

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,970

Underlying: Common Stock · 2,030 shares

Expires 2030-02-18

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The option vests as to 25% of the shares on February 18, 2021 and vests as to an additional 2.083% of the shares per month for 36 months thereafter.