PI

SEC source: 0001246360-19-001982 · form.xml · derivative · entry 2

WISE THERESA · CIK 0001677728 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 4,754 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Impinj common stock.

F2 · derivative.exercise_date: On August 13, 2018, the reporting person was granted 4,754 restricted stock units ("RSUs"). These RSUs fully vested on August 13, 2019.

F2 · derivative.expiration_date: On August 13, 2018, the reporting person was granted 4,754 restricted stock units ("RSUs"). These RSUs fully vested on August 13, 2019.

SEC source: 0001246360-19-001982 · form.xml · nonDerivative · entry 1

WISE THERESA · CIK 0001677728 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,777

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: 0001246360-19-001980 · form.xml · derivative · entry 4

ALBERG TOM A · CIK 0001184752 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 0 shares

Expires not disclosed

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_price: Each restricted stock unit represents a contingent right to receive one share of Impinj common stock.

F4 · derivative.exercise_date: On August 13, 2018, the reporting person was granted 4,754 restricted stock units ("RSUs"). These RSUs fully vested on August 13, 2019.

F4 · derivative.expiration_date: On August 13, 2018, the reporting person was granted 4,754 restricted stock units ("RSUs"). These RSUs fully vested on August 13, 2019.

SEC source: 0001246360-19-001980 · form.xml · nonDerivative · entry 3

ALBERG TOM A · CIK 0001184752 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,382

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: 0001246360-19-001984 · form.xml · derivative · entry 3

BYBEE CLINTON · CIK 0001219043 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 4,754 shares

Expires not disclosed

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_price: Each restricted stock unit represents a contingent right to receive one share of Impinj common stock.

F5 · derivative.exercise_date: On August 13, 2018, the reporting person was granted 4,754 restricted stock units ("RSUs"). These RSUs fully vested on August 13, 2019.

F5 · derivative.expiration_date: On August 13, 2018, the reporting person was granted 4,754 restricted stock units ("RSUs"). These RSUs fully vested on August 13, 2019.

SEC source: 0001246360-19-001984 · form.xml · nonDerivative · entry 2

BYBEE CLINTON · CIK 0001219043 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,347

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: 0001246360-19-001979 · form.xml · derivative · entry 2

SESSLER GREGORY · CIK 0001285810 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 4,754 shares

Expires not disclosed

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 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Impinj common stock.

F2 · derivative.exercise_date: On August 13, 2018, the reporting person was granted 4,754 restricted stock units ("RSUs"). These RSUs fully vested on August 13, 2019.

F2 · derivative.expiration_date: On August 13, 2018, the reporting person was granted 4,754 restricted stock units ("RSUs"). These RSUs fully vested on August 13, 2019.

SEC source: 0001246360-19-001979 · form.xml · nonDerivative · entry 1

SESSLER GREGORY · CIK 0001285810 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,692

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: 0001246360-19-001978 · form.xml · derivative · entry 3

Gibson Daniel Patrick · CIK 0001745725 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: COMMON STOCK · 4,754 shares

Expires not disclosed

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.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of Impinj common stock.

F3 · derivative.exercise_date: On August 13, 2018, the reporting person was granted 4,754 restricted stock units ("RSUs"). These RSUs fully vested on August 13, 2019.

F3 · derivative.expiration_date: On August 13, 2018, the reporting person was granted 4,754 restricted stock units ("RSUs"). These RSUs fully vested on August 13, 2019.

SEC source: 0001246360-19-001978 · form.xml · nonDerivative · entry 2

Gibson Daniel Patrick · CIK 0001745725 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,754

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: 0001246360-19-001953 · form.xml · nonDerivative · entry 3

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,100

F1 · kind: The sales reported by Mr. Brodersen were effected pursuant to a Rule 10b5-1 trading plan adopted on November 26, 2018.

F4 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $37.01 to $37.89, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001953 · form.xml · nonDerivative · entry 2

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,600

F1 · kind: The sales reported by Mr. Brodersen were effected pursuant to a Rule 10b5-1 trading plan adopted on November 26, 2018.

F3 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $37.30 to $37.54, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001953 · form.xml · nonDerivative · entry 1

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,400

F1 · kind: The sales reported by Mr. Brodersen were effected pursuant to a Rule 10b5-1 trading plan adopted on November 26, 2018.

F2 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $36.17 to $36.85, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001856 · form.xml · nonDerivative · entry 2

VAN OPPEN PETER H · CIK 0001057881 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,528

F1 · kind: The sales reported by Mr. van Oppen were effected pursuant to a Rule 10b5-1 trading plan.

F3 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $37.52 to $37.915, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001856 · form.xml · nonDerivative · entry 1

VAN OPPEN PETER H · CIK 0001057881 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,782

F1 · kind: The sales reported by Mr. van Oppen were effected pursuant to a Rule 10b5-1 trading plan.

F2 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $35.99 to $36.745, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001857 · form.xml · nonDerivative · entry 4

ALBERG TOM A · CIK 0001184752 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,796

F2 · kind: The sales reported by Mr. Alberg were effected pursuant to a Rule 10b5-1 trading plan.

F5 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $38.74 to $39.25, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001857 · form.xml · nonDerivative · entry 3

ALBERG TOM A · CIK 0001184752 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 81,496

F2 · kind: The sales reported by Mr. Alberg were effected pursuant to a Rule 10b5-1 trading plan.

F4 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $37.38 to $38.005, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001857 · form.xml · nonDerivative · entry 2

ALBERG TOM A · CIK 0001184752 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 102,319

F2 · kind: The sales reported by Mr. Alberg were effected pursuant to a Rule 10b5-1 trading plan.

F3 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $36.3550 to $37.33, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001855 · form.xml · derivative · entry 2

DOSSETT JEFFREY · CIK 0001578147 · EVP, Sales & Marketing

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

Underlying: COMMON STOCK · 25,000 shares

Expires 2029-07-30

F2 · derivative.exercise_date: One-fourth (1/4) of the shares subject to the option will vest on July 31, 2020, and one-forty-eighth (1/48th) of the shares subject to the option shall vest each month thereafter.

SEC source: 0001246360-19-001855 · form.xml · derivative · entry 1

DOSSETT JEFFREY · CIK 0001578147 · EVP, Sales & Marketing

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

Underlying: COMMON STOCK · 25,000 shares

Expires 2029-07-30

F1 · derivative.exercise_date: One fourth (1/4) of the restricted stock units (the RSUs) will vest on July 31, 2020, and one-sixteenth (1/16) of the RSUs will vest every three (3) months thereafter, subject to the individual continuing to be a Service Provider.

SEC source: 0001246360-19-001854 · form.xml · derivative · entry 2

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: COMMON STOCK · 30,000 shares

Expires 2029-07-30

F2 · derivative.exercise_date: One-fourth (1/4) of the shares subject to the option will vest on July 31, 2020, and one-forty-eighth (1/48th) of the shares subject to the option shall vest each month thereafter.

SEC source: 0001246360-19-001854 · form.xml · derivative · entry 1

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: COMMON STOCK · 30,000 shares

Expires 2029-07-30

F1 · derivative.exercise_date: One fourth (1/4) of the restricted stock units (the RSUs) will vest on July 31, 2020, and one-sixteenth (1/16) of the RSUs will vest every three (3) months thereafter, subject to the individual continuing to be a Service Provider.

SEC source: 0001246360-19-001883 · form.xml · nonDerivative · entry 2

VAN OPPEN PETER H · CIK 0001057881 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,528

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $37.52 to $37.915, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001883 · form.xml · nonDerivative · entry 1

VAN OPPEN PETER H · CIK 0001057881 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,782

F1 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $35.99 to $36.745, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001012975-19-000530 · edgar.xml · nonDerivative · entry 2

BYBEE CLINTON · CIK 0001219043 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,593

F2 · kind: Distribution of Common Stock held by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. to its partners for no consideration.

F5 · kind: Change from indirect to direct ownership of shares previously reported as beneficially owned by the reporting person.

F2 · price: Distribution of Common Stock held by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. to its partners for no consideration.

SEC source: 0001012975-19-000530 · edgar.xml · nonDerivative · entry 1

BYBEE CLINTON · CIK 0001219043 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 742,601

F2 · kind: Distribution of Common Stock held by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. to its partners for no consideration.

F2 · price: Distribution of Common Stock held by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. to its partners for no consideration.

F1 · balance_after: 737,762 of these shares are held of record by ARCH Venture Fund V, L.P., and 4,839 of these shares are held of record by ARCH V Entrepreneurs Fund, L.P.

F3 · ownership.nature: Clinton Bybee, a member of the board of directors, is a managing director of ARCH Venture Partners V, LLC, and may be deemed to beneficially own certain of the shares held of record by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. Mr. Bybee disclaims beneficial ownership of all shares held of record by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P., of which he does not have an actual pecuniary interest. By virtue of their relationship as affiliated entities who have overlapping general partners and managing directors, ARCH Venture Fund V, L.P., ARCH V Entrepreneurs Fund, L.P., ARCH Venture Partners V, L.P., ARCH Venture Partners V, LLC and Mr. Bybee may be deemed to share the voting and investment control of the record shares.

F4 · ownership.nature: ARCH Venture Partners V, L.P., as the sole general partner of ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P., may be deemed to beneficially own certain of the shares held of record by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P., but disclaims beneficial ownership of such shares, in which it does not have an actual pecuniary interest. ARCH Venture Partners V, LLC, as the sole general partner of ARCH Venture Partners V, L.P., may be deemed to beneficially own certain of the shares held of record by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P., but disclaims beneficial ownership of such shares, in which it does not have an actual pecuniary interest.

SEC source: 0001246360-19-001980 · form.xml · nonDerivative · entry 2

ALBERG TOM A · CIK 0001184752 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 80,628

F2 · kind: Distribution of Common Stock held by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. to its partners for no consideration.

F2 · shares: Distribution of Common Stock held by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. to its partners for no consideration.

SEC source: 0001246360-19-001793 · form.xml · nonDerivative · entry 3

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,100

F1 · kind: The sales reported by Mr. Brodersen were effected pursuant to a Rule 10b5-1 trading plan adopted on November 26, 2018.

F4 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $37.03 to $37.37, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F4 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $37.03 to $37.37, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001793 · form.xml · nonDerivative · entry 2

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,900

F1 · kind: The sales reported by Mr. Brodersen were effected pursuant to a Rule 10b5-1 trading plan adopted on November 26, 2018.

F3 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $36.01 to $36.87, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F3 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $36.01 to $36.87, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001793 · form.xml · nonDerivative · entry 1

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,600

F1 · kind: The sales reported by Mr. Brodersen were effected pursuant to a Rule 10b5-1 trading plan adopted on November 26, 2018.

F2 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $35.54 to $36.32, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

F2 · price: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $35.54 to $36.32, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001790 · form.xml · nonDerivative · entry 3

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 245,478

F1 · kind: The sales reported by Mr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on March 5, 2019.

SEC source: 0001246360-19-001790 · form.xml · nonDerivative · entry 2

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 253,021

F1 · kind: The sales reported by Mr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on March 5, 2019.

SEC source: 0001246360-19-001777 · form.xml · nonDerivative · entry 3

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 263,021

F1 · kind: The sales reported by Mr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on March 5, 2019.

SEC source: 0001246360-19-001777 · form.xml · nonDerivative · entry 2

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 271,278

F1 · kind: The sales reported by Mr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on March 5, 2019.

SEC source: 0001246360-19-001853 · form.xml · derivative · entry 2

MASTERS DENISE · CIK 0001736540 · VP Accounting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,750

Underlying: COMMON STOCK · 5,750 shares

Expires 2029-07-14

F2 · derivative.exercise_date: One-fourth (1/4) of the shares subject to the option will vest on July 15, 2020, and one-forty-eighth (1/48th) of the shares subject to the option shall vest each month thereafter.

SEC source: 0001246360-19-001853 · form.xml · derivative · entry 1

MASTERS DENISE · CIK 0001736540 · VP Accounting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,750

Underlying: COMMON STOCK · 5,750 shares

Expires 2029-07-13

F1 · derivative.exercise_date: One fourth (1/4) of the restricted stock units (the RSUs) will vest on July 13, 2020, and one-sixteenth (1/16) of the RSUs will vest every three (3) months thereafter, subject to the individual continuing to be a Service Provider.

SEC source: 0001246360-19-001767 · form.xml · nonDerivative · entry 2

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 281,278

F1 · kind: The sales reported by Mr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on March 5, 2019.

SEC source: 0001246360-19-001629 · form.xml · nonDerivative · entry 2

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,100

F1 · kind: The sales reported by Mr. Brodersen were effected pursuant to a Rule 10b5-1 trading plan adopted on November 26, 2018.

F3 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $25.20 to $25.54, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001629 · form.xml · nonDerivative · entry 1

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,600

F1 · kind: The sales reported by Mr. Brodersen were effected pursuant to a Rule 10b5-1 trading plan adopted on November 26, 2018.

F2 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $25.36 to $26.02, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001522 · form.xml · nonDerivative · entry 2

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 285,478

F1 · kind: The sales reported by Mr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on March 5, 2019.

SEC source: 0001246360-19-001472 · form.xml · nonDerivative · entry 4

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 295,478

F1 · kind: The sales reported by Mr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on March 5, 2019.

SEC source: 0001246360-19-001472 · form.xml · nonDerivative · entry 3

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 305,478

F1 · kind: The sales reported by Mr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on March 5, 2019.

SEC source: 0001246360-19-001472 · form.xml · nonDerivative · entry 2

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 315,478

F1 · kind: The sales reported by Mr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on March 5, 2019.

SEC source: 0001246360-19-001398 · form.xml · nonDerivative · entry 2

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,100

F1 · kind: The sales reported by Mr. Brodersen were effected pursuant to a Rule 10b5-1 trading plan adopted on November 26, 2018.

F3 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $27.90 to $28.67, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001398 · form.xml · nonDerivative · entry 1

BRODERSEN ERIC · CIK 0001677723 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 55,600

F1 · kind: The sales reported by Mr. Brodersen were effected pursuant to a Rule 10b5-1 trading plan adopted on November 26, 2018.

F2 · shares: The "Amount" and "Price" reported in this Column 4 reflect the aggregate number and weighted-average price, respectively, of shares sold. These shares were sold in multiple transactions at prices ranging from $28.35 to $29.03, inclusive. The reporting person undertakes to provide to the issuer, any security holder of the issuer, or the SEC staff, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

SEC source: 0001246360-19-001376 · form.xml · nonDerivative · entry 2

ALBERG TOM A · CIK 0001184752 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 114,510

F2 · kind: Pro rata distribution of Common Stock held by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. to its partners for no consideration.

SEC source: 0001012975-19-000326 · edgar.xml · nonDerivative · entry 2

BYBEE CLINTON · CIK 0001219043 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,997

F2 · kind: Distribution of Common Stock held by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. to its partners for no consideration.

F5 · kind: Change from indirect to direct ownership of shares previously reported as beneficially owned by the reporting person.

F2 · price: Distribution of Common Stock held by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. to its partners for no consideration.

SEC source: 0001012975-19-000326 · edgar.xml · nonDerivative · entry 1

BYBEE CLINTON · CIK 0001219043 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 1,064,759

F2 · kind: Distribution of Common Stock held by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. to its partners for no consideration.

F2 · price: Distribution of Common Stock held by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. to its partners for no consideration.

F1 · balance_after: 1,057,810 of these shares are held of record by ARCH Venture Fund V, L.P., and 6,949 of these shares are held of record by ARCH V Entrepreneurs Fund, L.P.

F3 · ownership.nature: Clinton Bybee, a member of the board of directors, is a managing director of ARCH Venture Partners V, LLC, and may be deemed to beneficially own certain of the shares held of record by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P. Mr. Bybee disclaims beneficial ownership of all shares held of record by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P., of which he does not have an actual pecuniary interest. By virtue of their relationship as affiliated entities who have overlapping general partners and managing directors, ARCH Venture Fund V, L.P., ARCH V Entrepreneurs Fund, L.P., ARCH Venture Partners V, L.P., ARCH Venture Partners V, LLC and Mr. Bybee may be deemed to share the voting and investment control of the record shares.

F4 · ownership.nature: ARCH Venture Partners V, L.P., as the sole general partner of ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P., may be deemed to beneficially own certain of the shares held of record by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P., but disclaims beneficial ownership of such shares, in which it does not have an actual pecuniary interest. ARCH Venture Partners V, LLC, as the sole general partner of ARCH Venture Partners V, L.P., may be deemed to beneficially own certain of the shares held of record by ARCH Venture Fund V, L.P. and ARCH V Entrepreneurs Fund, L.P., but disclaims beneficial ownership of such shares, in which it does not have an actual pecuniary interest.

SEC source: 0001246360-19-001399 · form.xml · nonDerivative · entry 4

MASTERS DENISE · CIK 0001736540 · VP Accounting

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,968

SEC source: 0001246360-19-001258 · form.xml · nonDerivative · entry 2

DIORIO CHRIS PH.D. · CIK 0001677721 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 325,478

F1 · kind: The sales reported by Mr. Diorio were effected pursuant to a Rule 10b5-1 trading plan adopted on March 5, 2019.