YOUNG PHILIP M

SEC source: 0001193125-26-276599 · ownership.xml · nonDerivative · entry 1

YOUNG PHILIP M · CIK 0001048637 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,031

F1 · shares: Constitutes an award of restricted stock units ("RSUs") for which the Reporting Person is entitled to receive one (1) share of Common Stock for each RSU upon vesting. The RSUs will vest in full on the earlier of (i) the day before the Issuer's 2027 annual meeting of stockholders or (ii) June 3, 2027, subject, in all cases, to the Reporting Person's continued service as a member of the Board of Directors through such vesting date.

SEC source: 0000950170-25-098528 · ownership.xml · derivative · entry 5

YOUNG PHILIP M · CIK 0001048637 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

Underlying: Common Stock · 28,900 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: These securities were previously reported on a Form 3 filed by the Reporting Person as preferred stock of the Issuer. Each share of preferred stock of the Issuer converted into one share of the Issuer's common stock immediately prior to the closing of the Issuer's initial public offering on a 1-to-1 basis without payment of additional consideration. The preferred stock has no expiration date.

F3 · price: These securities were previously reported on a Form 3 filed by the Reporting Person as preferred stock of the Issuer. Each share of preferred stock of the Issuer converted into one share of the Issuer's common stock immediately prior to the closing of the Issuer's initial public offering on a 1-to-1 basis without payment of additional consideration. The preferred stock has no expiration date.

F3 · derivative.exercise_date: These securities were previously reported on a Form 3 filed by the Reporting Person as preferred stock of the Issuer. Each share of preferred stock of the Issuer converted into one share of the Issuer's common stock immediately prior to the closing of the Issuer's initial public offering on a 1-to-1 basis without payment of additional consideration. The preferred stock has no expiration date.

F3 · derivative.expiration_date: These securities were previously reported on a Form 3 filed by the Reporting Person as preferred stock of the Issuer. Each share of preferred stock of the Issuer converted into one share of the Issuer's common stock immediately prior to the closing of the Issuer's initial public offering on a 1-to-1 basis without payment of additional consideration. The preferred stock has no expiration date.

F4 · ownership.nature: Stock held by PMY Partners LP.

F5 · ownership.nature: Reporting Person is the sole general partner of PMY Partners L.P. and has voting and dispositive power over the stock held by PMY Partners L.P.

SEC source: 0000950170-25-098528 · ownership.xml · nonDerivative · entry 4

YOUNG PHILIP M · CIK 0001048637 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 53,333

F8 · shares: Includes 53,333 shares of the Issuer's common stock purchased by the Young Family Trust dtd 04/13/1998 Nancy Halsey Young & Philip Young, Trustees (the "Trust") in the Issuer's initial public offering at the public offering price of $15.00 per share. The purchase was made directly from the underwriters in connection with the offering.

F9 · ownership.nature: Stock held by the Trust.

F10 · ownership.nature: Reporting Person is a trustee of the Trust and has voting and dispositive power over the stock held by the Trust.

SEC source: 0000950170-25-098528 · ownership.xml · nonDerivative · entry 3

YOUNG PHILIP M · CIK 0001048637 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 35,566

F6 · shares: Includes 6,666 shares of the Issuer's common stock purchased by PMY Partners L.P. in the Issuer's initial public offering at the public offering price of $15.00 per share. The purchase was made directly from the underwriters in connection with the offering.

F7 · balance_after: (7) Includes (i) 6,666 shares of the Issuer's common stock purchased by PMY Partners L.P. in the Issuer's initial public offering at the public offering price of $15.00 per share, and (ii) 28,900 shares of common stock issued to PMY Partners L.P. upon the conversion of outstanding preferred stock on a 1-to-1 basis, immediately prior to the closing of the Issuer's public offering.

F4 · ownership.nature: Stock held by PMY Partners LP.

F5 · ownership.nature: Reporting Person is the sole general partner of PMY Partners L.P. and has voting and dispositive power over the stock held by PMY Partners L.P.

SEC source: 0000950170-25-098528 · ownership.xml · nonDerivative · entry 2

YOUNG PHILIP M · CIK 0001048637 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 28,900

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 · price: These securities were previously reported on a Form 3 filed by the Reporting Person as preferred stock of the Issuer. Each share of preferred stock of the Issuer converted into one share of the Issuer's common stock immediately prior to the closing of the Issuer's initial public offering on a 1-to-1 basis without payment of additional consideration. The preferred stock has no expiration date.

F4 · ownership.nature: Stock held by PMY Partners LP.

F5 · ownership.nature: Reporting Person is the sole general partner of PMY Partners L.P. and has voting and dispositive power over the stock held by PMY Partners L.P.

SEC source: 0000950170-25-098528 · ownership.xml · nonDerivative · entry 1

YOUNG PHILIP M · CIK 0001048637 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,333

F1 · shares: Constitute an award of restricted stock units ("RSUs") for which the Reporting Person is entitled to receive one (1) share of Common Stock for each RSU upon vesting. The RSUs will vest in equal annual installments over three years.

F2 · shares: Includes 17,333 unvested restricted stock units convertible into approximately 17,333 shares of the Issuer's common stock.

F1 · balance_after: Constitute an award of restricted stock units ("RSUs") for which the Reporting Person is entitled to receive one (1) share of Common Stock for each RSU upon vesting. The RSUs will vest in equal annual installments over three years.

F2 · balance_after: Includes 17,333 unvested restricted stock units convertible into approximately 17,333 shares of the Issuer's common stock.

SEC source: 0001548538-18-000004 · edgar.xml · nonDerivative · entry 6

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Steven Krausz

Disclosed balance after: 97,593

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000004 · edgar.xml · nonDerivative · entry 5

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Steven Krausz

Disclosed balance after: 99,993

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $.95 to $.96, inclusive for sales made on November 12, 2018. The reporting persons undertake to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote to this Form 4.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000007 · edgar.xml · nonDerivative · entry 9

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Philip Young

Disclosed balance after: 18,212

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.direct: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000007 · edgar.xml · nonDerivative · entry 8

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Jonathan Root

Disclosed balance after: 18,982

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.direct: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000007 · edgar.xml · nonDerivative · entry 7

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Paul Matteucci

Disclosed balance after: 13,356

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.direct: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000007 · edgar.xml · nonDerivative · entry 6

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by David Liddle

Disclosed balance after: 15,391

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.direct: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000007 · edgar.xml · nonDerivative · entry 5

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Steven Krausz

Disclosed balance after: 22,573

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.direct: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000007 · edgar.xml · nonDerivative · entry 4

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Irwin Federman

Disclosed balance after: 18,212

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.direct: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000007 · edgar.xml · nonDerivative · entry 3

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

SEC source: 0001548538-18-000007 · edgar.xml · nonDerivative · entry 2

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 216,825

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

SEC source: 0001548538-18-000007 · edgar.xml · nonDerivative · entry 1

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by USVP IX

Disclosed balance after: 1,084,127

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.direct: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000004 · edgar.xml · nonDerivative · entry 11

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Philip Young

Disclosed balance after: 82,370

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000004 · edgar.xml · nonDerivative · entry 10

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Casey Tansey

Disclosed balance after: 60,336

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000004 · edgar.xml · nonDerivative · entry 9

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Jonathan Root

Disclosed balance after: 85,851

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000004 · edgar.xml · nonDerivative · entry 8

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Paul Matteucci

Disclosed balance after: 60,408

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000004 · edgar.xml · nonDerivative · entry 7

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by David Liddle

Disclosed balance after: 69,609

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000004 · edgar.xml · nonDerivative · entry 4

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by Steven Krausz

Disclosed balance after: 102,093

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-18-000004 · edgar.xml · nonDerivative · entry 3

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

SEC source: 0001548538-18-000004 · edgar.xml · nonDerivative · entry 2

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 856,155

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

SEC source: 0001548538-18-000004 · edgar.xml · nonDerivative · entry 1

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by USVP IX

Disclosed balance after: 0

F1 · kind: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F1 · price: Represents a pro-rata, in-kind distribution by U.S. Venture Partners IX, L.P. ("USVP IX"), without additional consideration, to its partners.

F2 · ownership.nature: This report is one of two reports each on a separate Form 4; however, these forms are related to the same transaction being filed by the reporting persons. The shares are held of record by USVP IX. Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Irwin Federman, a director of the Issuer, and each of Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, Casey Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · derivative · entry 12

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 570,769 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: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F1 · derivative.exercise_date: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F1 · derivative.expiration_date: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · derivative · entry 11

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 163,962 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: Shares of Series E Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1728 conversion rate immediately prior to the closing of the Issuer's IPO for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Certificate of Incorporation). These shares had no expiration date.

F3 · derivative.exercise_date: Shares of Series E Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1728 conversion rate immediately prior to the closing of the Issuer's IPO for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Certificate of Incorporation). These shares had no expiration date.

F3 · derivative.expiration_date: Shares of Series E Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1728 conversion rate immediately prior to the closing of the Issuer's IPO for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Certificate of Incorporation). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · derivative · entry 10

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 210,147 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: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F1 · derivative.exercise_date: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F1 · derivative.expiration_date: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · derivative · entry 9

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 472,581 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: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F1 · derivative.exercise_date: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F1 · derivative.expiration_date: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · derivative · entry 8

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 389,893 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: Shares of Series B Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1855 conversion rate immediately prior to the closing of the Issuer's IPO for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Certificate of Incorporation). These shares had no expiration date.

F2 · derivative.exercise_date: Shares of Series B Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1855 conversion rate immediately prior to the closing of the Issuer's IPO for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Certificate of Incorporation). These shares had no expiration date.

F2 · derivative.expiration_date: Shares of Series B Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1855 conversion rate immediately prior to the closing of the Issuer's IPO for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Certificate of Incorporation). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · derivative · entry 7

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

Underlying: Common Stock · 360,902 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: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F1 · derivative.exercise_date: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F1 · derivative.expiration_date: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · nonDerivative · entry 6

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 2,168,254

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 · price: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · nonDerivative · entry 5

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,597,485

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 · price: Shares of Series E Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1728 conversion rate immediately prior to the closing of the Issuer's IPO for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Certificate of Incorporation). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · nonDerivative · entry 4

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,433,523

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 · price: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · nonDerivative · entry 3

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,223,376

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 · price: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · nonDerivative · entry 2

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 750,795

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 · price: Shares of Series B Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1855 conversion rate immediately prior to the closing of the Issuer's IPO for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Certificate of Incorporation). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001104659-18-031866 · a4.xml · nonDerivative · entry 1

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

KRAUSZ STEVEN M · CIK 0001190636 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 360,902

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 · price: Shares of Series A, Series C, Series D and Series F Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a 1-for-0.1504 conversion rate immediately prior to the closing of the Issuer's initial public offering ("IPO") for no additional consideration (subject to the payment of cash in lieu of any fractional shares in accordance with the Issuer's Sixth Amended and Restated Certificate of Incorporation (as amended, the "Certificate of Incorporation")). These shares had no expiration date.

F4 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Casey Tansey, a director of the Issuer, and each of Irwin Federman, Steven M. Krausz, David E. Liddle, Paul A. Matteucci, Jonathan D. Root, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-17-000012 · edgar.xml · derivative · entry 3

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by USVP IX

Disclosed balance after: 3,713,775

Underlying: Class A Common Stock · 8,000,000 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 · security: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · kind: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.underlying_shares: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F3 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Steven M. Krausz, a director of the Issuer, and each of Irwin Federman, David E. Liddle, Paul A Matteucci, Jonathan D. Root, Casey M. Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-17-000012 · edgar.xml · nonDerivative · entry 2

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by USVP IX

Disclosed balance after: 0

F1 · security: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F2 · kind: Prorata distribution in kind from the partnership without consideration to its limited partners.

F2 · price: Prorata distribution in kind from the partnership without consideration to its limited partners.

F3 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Steven M. Krausz, a director of the Issuer, and each of Irwin Federman, David E. Liddle, Paul A Matteucci, Jonathan D. Root, Casey M. Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-17-000012 · edgar.xml · nonDerivative · entry 1

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by USVP IX

Disclosed balance after: 8,000,000

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 · security: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · kind: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F3 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Steven M. Krausz, a director of the Issuer, and each of Irwin Federman, David E. Liddle, Paul A Matteucci, Jonathan D. Root, Casey M. Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-17-000015 · edgar.xml · derivative · entry 3

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by USVP IX

Disclosed balance after: 3,713,775

Underlying: Class A Common Stock · 8,000,000 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 · security: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.exercise_price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · kind: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.exercise_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.expiration_date: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · derivative.underlying_shares: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F3 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Steven M. Krausz, a director of the Issuer, and each of Irwin Federman, David E. Liddle, Paul A Matteucci, Jonathan D. Root, Casey M. Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-17-000015 · edgar.xml · nonDerivative · entry 2

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by USVP IX

Disclosed balance after: 0

F1 · security: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F2 · kind: Prorata distribution in kind from the partnership without consideration to its limited partners.

F2 · price: Prorata distribution in kind from the partnership without consideration to its limited partners.

F3 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Steven M. Krausz, a director of the Issuer, and each of Irwin Federman, David E. Liddle, Paul A Matteucci, Jonathan D. Root, Casey M. Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.

SEC source: 0001548538-17-000015 · edgar.xml · nonDerivative · entry 1

Presidio Management Group IX, L.L.C. · CIK 0001527715 · 10% owner

U S Venture Partners IX L P · CIK 0001309185 · 10% owner

FEDERMAN IRWIN · CIK 0001192391 · 10% owner

LIDDLE DAVID E · CIK 0001212726 · 10% owner

Matteucci Paul A · CIK 0001370817 · 10% owner

ROOT JONATHAN D · CIK 0001225480 · 10% owner

Tansey Casey M · CIK 0001474322 · 10% owner

YOUNG PHILIP M · CIK 0001048637 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Directly owned by USVP IX

Disclosed balance after: 8,000,000

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 · security: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · kind: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F1 · price: Each share of Class B Common Stock is convertible into one share of Class A Common Stock at the option of the holder and has no expiration date.

F3 · ownership.nature: The shares are held of record by U.S. Venture Partners IX, L.P. ("USVP IX"). Presidio Management Group IX, LLC ("PMG IX") is the general partner of USVP IX and may be deemed to have sole voting and dispositive power over the shares held by USVP IX. Steven M. Krausz, a director of the Issuer, and each of Irwin Federman, David E. Liddle, Paul A Matteucci, Jonathan D. Root, Casey M. Tansey, and Philip M. Young, are managing members of PMG IX, and may be deemed to share voting and dispositive power over the shares held by USVP IX. Such persons and entities disclaim beneficial ownership of shares held by USVP IX, except to the extent of any proportionate pecuniary interest therein.