CDLX

SEC source: 0001666071-19-000166 · wf-form4_157489994039629.xml · nonDerivative · entry 2

SOMERS KIRK · CIK 0001204015 · Chief Legal & Privacy Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,614

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: 0001666071-19-000166 · wf-form4_157489994039629.xml · nonDerivative · entry 1

SOMERS KIRK · CIK 0001204015 · Chief Legal & Privacy Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,829

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: 0001666071-19-000164 · wf-form4_157489989397063.xml · derivative · entry 9

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,250

Underlying: Common Stock · 28,125 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 performance stock unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F8 · derivative.exercise_date: On August 26, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a target minimum trailing 30-day average closing price of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the stock price target ("stock price tranche"). Fifty percent (50%) of the shares subject to the stock price tranche of the awarded PSU vested upon the Certification and were delivered on November 25, 2019, twenty-five percent (25%) of the shares subject to the stock price tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the stock price tranche of the awarded PSU will vest 12 months after the Certification.

F8 · derivative.expiration_date: On August 26, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a target minimum trailing 30-day average closing price of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the stock price target ("stock price tranche"). Fifty percent (50%) of the shares subject to the stock price tranche of the awarded PSU vested upon the Certification and were delivered on November 25, 2019, twenty-five percent (25%) of the shares subject to the stock price tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the stock price tranche of the awarded PSU will vest 12 months after the Certification.

SEC source: 0001666071-19-000164 · wf-form4_157489989397063.xml · derivative · entry 8

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 84,375

Underlying: Common Stock · 28,125 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 performance stock unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F7 · derivative.exercise_date: On November 25, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a minimum cumulative adjusted EBITDA target over a trailing 12-month period of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the adjusted EBITDA target ("EBITDA tranche"). Fifty percent (50%) of the shares subject to the EBITDA tranche of the awarded PSU vested upon the Certification, twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 12 months after the Certification.

F7 · derivative.expiration_date: On November 25, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a minimum cumulative adjusted EBITDA target over a trailing 12-month period of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the adjusted EBITDA target ("EBITDA tranche"). Fifty percent (50%) of the shares subject to the EBITDA tranche of the awarded PSU vested upon the Certification, twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 12 months after the Certification.

SEC source: 0001666071-19-000164 · wf-form4_157489989397063.xml · derivative · entry 7

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,500

Underlying: Common Stock · 56,250 shares

Expires not disclosed

F1 · derivative.exercise_price: Each performance stock unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F7 · derivative.exercise_date: On November 25, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a minimum cumulative adjusted EBITDA target over a trailing 12-month period of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the adjusted EBITDA target ("EBITDA tranche"). Fifty percent (50%) of the shares subject to the EBITDA tranche of the awarded PSU vested upon the Certification, twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 12 months after the Certification.

F7 · derivative.expiration_date: On November 25, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a minimum cumulative adjusted EBITDA target over a trailing 12-month period of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the adjusted EBITDA target ("EBITDA tranche"). Fifty percent (50%) of the shares subject to the EBITDA tranche of the awarded PSU vested upon the Certification, twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 12 months after the Certification.

SEC source: 0001666071-19-000164 · wf-form4_157489989397063.xml · nonDerivative · entry 2

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 373,205

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: Each performance stock unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock.

SEC source: 0001666071-19-000164 · wf-form4_157489989397063.xml · nonDerivative · entry 1

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 345,080

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: Each performance stock unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock.

SEC source: 0001666071-19-000167 · wf-form4_157489996215812.xml · derivative · entry 11

Grimes Scott D. · CIK 0001617486 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,750

Underlying: Common Stock · 39,375 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.

F5 · derivative.exercise_price: Each performance stock unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F10 · derivative.exercise_date: On August 26, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a target minimum trailing 30-day average closing price of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the stock price target ("stock price tranche"). Fifty percent (50%) of the shares subject to the stock price tranche of the awarded PSU vested upon the Certification and were delivered on November 25, 2019, twenty-five percent (25%) of the shares subject to the stock price tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the stock price tranche of the awarded PSU will vest 12 months after the Certification.

F10 · derivative.expiration_date: On August 26, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a target minimum trailing 30-day average closing price of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the stock price target ("stock price tranche"). Fifty percent (50%) of the shares subject to the stock price tranche of the awarded PSU vested upon the Certification and were delivered on November 25, 2019, twenty-five percent (25%) of the shares subject to the stock price tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the stock price tranche of the awarded PSU will vest 12 months after the Certification.

SEC source: 0001666071-19-000167 · wf-form4_157489996215812.xml · derivative · entry 10

Grimes Scott D. · CIK 0001617486 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 118,125

Underlying: Common Stock · 39,375 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.

F5 · derivative.exercise_price: Each performance stock unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F9 · derivative.exercise_date: On November 25, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a minimum cumulative adjusted EBITDA target over a trailing 12-month period of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the adjusted EBITDA target ("EBITDA tranche"). Fifty percent (50%) of the shares subject to the EBITDA tranche of the awarded PSU vested upon the Certification, twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 12 months after the Certification.

F9 · derivative.expiration_date: On November 25, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a minimum cumulative adjusted EBITDA target over a trailing 12-month period of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the adjusted EBITDA target ("EBITDA tranche"). Fifty percent (50%) of the shares subject to the EBITDA tranche of the awarded PSU vested upon the Certification, twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 12 months after the Certification.

SEC source: 0001666071-19-000167 · wf-form4_157489996215812.xml · derivative · entry 9

Grimes Scott D. · CIK 0001617486 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 157,500

Underlying: Common Stock · 78,750 shares

Expires not disclosed

F5 · derivative.exercise_price: Each performance stock unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F9 · derivative.exercise_date: On November 25, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a minimum cumulative adjusted EBITDA target over a trailing 12-month period of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the adjusted EBITDA target ("EBITDA tranche"). Fifty percent (50%) of the shares subject to the EBITDA tranche of the awarded PSU vested upon the Certification, twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 12 months after the Certification.

F9 · derivative.expiration_date: On November 25, 2019, the Compensation Committee of the Issuer's Board of Directors certified that a minimum cumulative adjusted EBITDA target over a trailing 12-month period of the Issuer's common stock was achieved (the "Certification") resulting in the award of the tranche of the PSU grant related to achieving the adjusted EBITDA target ("EBITDA tranche"). Fifty percent (50%) of the shares subject to the EBITDA tranche of the awarded PSU vested upon the Certification, twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 6 months after the Certification, and twenty-five percent (25%) of the shares subject to the EBITDA tranche of the awarded PSU will vest 12 months after the Certification.

SEC source: 0001666071-19-000167 · wf-form4_157489996215812.xml · nonDerivative · entry 5

Grimes Scott D. · CIK 0001617486 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 443,190

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

F5 · price: Each performance stock unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock.

SEC source: 0001666071-19-000167 · wf-form4_157489996215812.xml · nonDerivative · entry 4

Grimes Scott D. · CIK 0001617486 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 403,815

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

F5 · price: Each performance stock unit ("PSU") represents a contingent right to receive one share of the Issuer's Common Stock.

SEC source: 0001666071-19-000167 · wf-form4_157489996215812.xml · nonDerivative · entry 3

Grimes Scott D. · CIK 0001617486 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 364,440

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 5, 2018, as amended May 14, 2019.

F4 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $56.91 to $57.81, inclusive.

SEC source: 0001666071-19-000167 · wf-form4_157489996215812.xml · nonDerivative · entry 2

Grimes Scott D. · CIK 0001617486 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 368,806

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 5, 2018, as amended May 14, 2019.

F3 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $55.78 to $56.77, inclusive.

SEC source: 0001666071-19-000167 · wf-form4_157489996215812.xml · nonDerivative · entry 1

Grimes Scott D. · CIK 0001617486 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 369,606

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 5, 2018, as amended May 14, 2019.

F2 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $54.765 to $55.75, inclusive. The Reporting Person undertakes to provide to 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 footnotes (2), (3), (4) and (7) to this Form 4.

SEC source: 0000899243-19-028238 · doc4.xml · nonDerivative · entry 17

Youngren Bryce · CIK 0001489625 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 13,976

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.25 to $57.84, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4.

F9 · ownership.nature: The reportable securities are owned directly by Polaris Venture Partners Special Founders' Fund V, L.P. ("PVPSFF V"). PVM V is the general partner of PVPSFF V. The Reporting Person, a member of the Issuer's Board of Directors, is a member of PVM V. Each of Flint and McGuire are the managing members of PVM V. Each of Flint, McGuire and the Reporting Person, in their respective capacities with respect to PVM V, may be deemed to have shared voting and dispositive power over the shares held by PVPSFF V. Each of PVM V, Flint, McGuire and the Reporting Person disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein

SEC source: 0000899243-19-028238 · doc4.xml · nonDerivative · entry 16

Youngren Bryce · CIK 0001489625 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 14,080

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.80 to $55.65, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F9 · ownership.nature: The reportable securities are owned directly by Polaris Venture Partners Special Founders' Fund V, L.P. ("PVPSFF V"). PVM V is the general partner of PVPSFF V. The Reporting Person, a member of the Issuer's Board of Directors, is a member of PVM V. Each of Flint and McGuire are the managing members of PVM V. Each of Flint, McGuire and the Reporting Person, in their respective capacities with respect to PVM V, may be deemed to have shared voting and dispositive power over the shares held by PVPSFF V. Each of PVM V, Flint, McGuire and the Reporting Person disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein

SEC source: 0000899243-19-028238 · doc4.xml · nonDerivative · entry 12

Youngren Bryce · CIK 0001489625 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 9,555

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.25 to $57.84, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4.

F8 · ownership.nature: The reportable securities are owned directly by Polaris Venture Partners Founders' Fund V, L.P. ("PVPFF V"). PVM V is the general partner of PVPFF V. The Reporting Person, a member of the Issuer's Board of Directors, is a member of PVM V. Each of Flint and McGuire are the managing members of PVM V. Each of Flint, McGuire and the Reporting Person, in their respective capacities with respect to PVM V, may be deemed to have shared voting and dispositive power over the shares held by PVPFF V. Each of PVM V, Flint, McGuire and the Reporting Person disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-19-028238 · doc4.xml · nonDerivative · entry 11

Youngren Bryce · CIK 0001489625 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 9,623

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.80 to $55.65, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F8 · ownership.nature: The reportable securities are owned directly by Polaris Venture Partners Founders' Fund V, L.P. ("PVPFF V"). PVM V is the general partner of PVPFF V. The Reporting Person, a member of the Issuer's Board of Directors, is a member of PVM V. Each of Flint and McGuire are the managing members of PVM V. Each of Flint, McGuire and the Reporting Person, in their respective capacities with respect to PVM V, may be deemed to have shared voting and dispositive power over the shares held by PVPFF V. Each of PVM V, Flint, McGuire and the Reporting Person disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-19-028238 · doc4.xml · nonDerivative · entry 7

Youngren Bryce · CIK 0001489625 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 27,198

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.25 to $57.84, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4.

F7 · ownership.nature: The reportable securities are owned directly by Polaris Venture Partners Entrepreneurs' Fund V, L.P. ("PVPE V"). PVM V is the general partner of PVPE V. The Reporting Person, a member of the Issuer's Board of Directors, is a member of PVM V. Each of Flint and McGuire are the managing members of PVM V. Each of Flint, McGuire and the Reporting Person, in their respective capacities with respect to PVM V, may be deemed to have shared voting and dispositive power over the shares held by PVPE V. Each of PVM V, Flint, McGuire and the Reporting Person disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-19-028238 · doc4.xml · nonDerivative · entry 6

Youngren Bryce · CIK 0001489625 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 27,406

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.80 to $55.65, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F7 · ownership.nature: The reportable securities are owned directly by Polaris Venture Partners Entrepreneurs' Fund V, L.P. ("PVPE V"). PVM V is the general partner of PVPE V. The Reporting Person, a member of the Issuer's Board of Directors, is a member of PVM V. Each of Flint and McGuire are the managing members of PVM V. Each of Flint, McGuire and the Reporting Person, in their respective capacities with respect to PVM V, may be deemed to have shared voting and dispositive power over the shares held by PVPE V. Each of PVM V, Flint, McGuire and the Reporting Person disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-19-028238 · doc4.xml · nonDerivative · entry 2

Youngren Bryce · CIK 0001489625 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,395,647

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $57.25 to $57.84, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (3) to this Form 4.

F2 · ownership.nature: The reportable securities are owned directly by Polaris Venture Partners V, L.P. ("PVP V"). Polaris Venture Management Co. V, L.L.C. ("PVM V") is the general partner of PVP V. The Reporting Person, a member of the Issuer's Board of Directors, is a member of PVM V. Each of Jonathan A. Flint ("Flint") and Terrance G. McGuire ("McGuire") are the managing members of PVM V. Each of Flint, McGuire and the Reporting Person, in their respective capacities with respect to PVM V, may be deemed to have shared voting and dispositive power over the shares held by PVP V. Each of PVM V, Flint, McGuire and the Reporting Person disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0000899243-19-028238 · doc4.xml · nonDerivative · entry 1

Youngren Bryce · CIK 0001489625 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 1,406,284

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $54.80 to $55.65, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1) to this Form 4.

F2 · ownership.nature: The reportable securities are owned directly by Polaris Venture Partners V, L.P. ("PVP V"). Polaris Venture Management Co. V, L.L.C. ("PVM V") is the general partner of PVP V. The Reporting Person, a member of the Issuer's Board of Directors, is a member of PVM V. Each of Jonathan A. Flint ("Flint") and Terrance G. McGuire ("McGuire") are the managing members of PVM V. Each of Flint, McGuire and the Reporting Person, in their respective capacities with respect to PVM V, may be deemed to have shared voting and dispositive power over the shares held by PVP V. Each of PVM V, Flint, McGuire and the Reporting Person disclaims beneficial ownership of these securities and this report shall not be deemed an admission that any one of them is the beneficial owner of such securities for purposes of Section 16 or for any other purpose, except to the extent of their respective pecuniary interests therein.

SEC source: 0001666071-19-000156 · wf-form4_157445697322085.xml · nonDerivative · entry 5

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 19,589

F9 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the trustees of the 2013 Lynne Marie Laube GRAT fbo Hayley Marie Allbright (the "HMA GRAT") on May 14, 2019.

F6 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $56.25 to $57.24, inclusive.

F10 · ownership.nature: The reportable securities are held by the HMA GRAT. The Reporting Person is the trustee of the HMA GRAT.

SEC source: 0001666071-19-000156 · wf-form4_157445697322085.xml · nonDerivative · entry 4

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 19,295

F5 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the trustees of the 2013 Lynne Marie Laube GRAT fbo Keegan George Allbright (the "KGA GRAT") on May 14, 2019.

F8 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $57.25 to $57.86, inclusive.

F7 · ownership.nature: The reportable securities are held by the KGA GRAT. The Reporting Person is the trustee of the KGA GRAT.

SEC source: 0001666071-19-000156 · wf-form4_157445697322085.xml · nonDerivative · entry 3

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 19,589

F5 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the trustees of the 2013 Lynne Marie Laube GRAT fbo Keegan George Allbright (the "KGA GRAT") on May 14, 2019.

F6 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $56.25 to $57.24, inclusive.

F7 · ownership.nature: The reportable securities are held by the KGA GRAT. The Reporting Person is the trustee of the KGA GRAT.

SEC source: 0001666071-19-000158 · wf-form4_157480861431325.xml · derivative · entry 4

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,536

Underlying: Common Stock · 39,963 shares

Expires 2023-07-18

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

F3 · derivative.exercise_date: Fully vested.

SEC source: 0001666071-19-000158 · wf-form4_157480861431325.xml · nonDerivative · entry 1

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 316,955

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: 0001666071-19-000156 · wf-form4_157445697322085.xml · nonDerivative · entry 6

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 19,295

F9 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the trustees of the 2013 Lynne Marie Laube GRAT fbo Hayley Marie Allbright (the "HMA GRAT") on May 14, 2019.

F8 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $57.25 to $57.86, inclusive.

F10 · ownership.nature: The reportable securities are held by the HMA GRAT. The Reporting Person is the trustee of the HMA GRAT.

SEC source: 0001666071-19-000154 · wf-form4_157437382910540.xml · nonDerivative · entry 1

SOMERS KIRK · CIK 0001204015 · Chief Legal & Privacy Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,338

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 16, 2019.

F2 · balance_after: Includes 555 shares of Common Stock acquired under the Issuer's Employee Stock Purchase Plan.

SEC source: 0001666071-19-000156 · wf-form4_157445697322085.xml · nonDerivative · entry 2

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 276,992

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 5, 2018, as amended May 14, 2019.

F4 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $58.79 to $59.36, inclusive.

SEC source: 0001666071-19-000156 · wf-form4_157445697322085.xml · nonDerivative · entry 1

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 280,128

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 5, 2018, as amended May 14, 2019.

F2 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $57.79 to $58.77, inclusive. The Reporting Person undertakes to provide to 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 footnotes (2), (4), (6) and (8) to this Form 4.

F3 · balance_after: Includes 475 shares of Common Stock acquired under the Issuer's Employee Stock Purchase Plan.

SEC source: 0001666071-19-000149 · wf-form4_157385462500696.xml · nonDerivative · entry 4

Evans David Thomas · CIK 0001730451 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,565

F1 · kind: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 23, 2019.

F2 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $57.00 to $57.47, inclusive. The Reporting Person undertakes to provide to 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 range set forth in this footnote (2) to this Form 4.

SEC source: 0001666071-19-000149 · wf-form4_157385462500696.xml · nonDerivative · entry 3

Evans David Thomas · CIK 0001730451 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 29,565

F1 · kind: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 23, 2019.

SEC source: 0001666071-19-000149 · wf-form4_157385462500696.xml · nonDerivative · entry 2

Evans David Thomas · CIK 0001730451 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,565

F1 · kind: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 23, 2019.

SEC source: 0001666071-19-000149 · wf-form4_157385462500696.xml · nonDerivative · entry 1

Evans David Thomas · CIK 0001730451 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,565

F1 · kind: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 23, 2019.

SEC source: 0001666071-19-000138 · wf-form4_157264933882343.xml · nonDerivative · entry 1

Evans David Thomas · CIK 0001730451 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,565

F1 · kind: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 23, 2019.

F2 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $41.2501 to $41.292, inclusive. The Reporting Person undertakes to provide to 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 range set forth in this footnote (2) to this Form 4.

SEC source: 0001666071-19-000136 · wf-form4_157246651030050.xml · derivative · entry 3

Evans David Thomas · CIK 0001730451 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,906 shares

Expires 2026-08-02

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

F1 · kind: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 23, 2019.

F2 · derivative.exercise_date: Fully vested.

SEC source: 0001666071-19-000136 · wf-form4_157246651030050.xml · nonDerivative · entry 2

Evans David Thomas · CIK 0001730451 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,565

F1 · kind: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 23, 2019.

SEC source: 0001666071-19-000136 · wf-form4_157246651030050.xml · nonDerivative · entry 1

Evans David Thomas · CIK 0001730451 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 53,471

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 · kind: These transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 23, 2019.

SEC source: 0001666071-19-000134 · wf-form4_157229754753514.xml · nonDerivative · entry 2

Grimes Scott D. · CIK 0001617486 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 374,440

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 5, 2018, as amended May 14, 2019.

F3 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $37.70 to $38.41, inclusive.

SEC source: 0001666071-19-000134 · wf-form4_157229754753514.xml · nonDerivative · entry 1

Grimes Scott D. · CIK 0001617486 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 380,840

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 5, 2018, as amended May 14, 2019.

F2 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $36.70 to $37.69, inclusive. The Reporting Person undertakes to provide to 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 footnotes (2) and (3) to this Form 4.

SEC source: 0001387131-19-008000 · ownership.xml · nonDerivative · entry 3

SOSIN CLIFFORD · CIK 0001697919 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,821,710

F1 · ownership.nature: 2,223,781 of these shares are owned directly by Sosin Partners, L.P., and Reporting Person is the Managing Member of CAS Investment Partners, LLC, which is investment manager to Sosin Partners, L.P. The remaining 597,929 shares are owned directly by CSWR Partners, L.P., and Reporting Person is the Managing Member of CAS Investment Partners, LLC, which is investment manager to CSWR Partners, L.P.

SEC source: 0001387131-19-008000 · ownership.xml · nonDerivative · entry 2

SOSIN CLIFFORD · CIK 0001697919 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,821,626

F1 · ownership.nature: 2,223,781 of these shares are owned directly by Sosin Partners, L.P., and Reporting Person is the Managing Member of CAS Investment Partners, LLC, which is investment manager to Sosin Partners, L.P. The remaining 597,929 shares are owned directly by CSWR Partners, L.P., and Reporting Person is the Managing Member of CAS Investment Partners, LLC, which is investment manager to CSWR Partners, L.P.

SEC source: 0001666071-19-000132 · wf-form4_157186323660684.xml · nonDerivative · entry 5

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 20,025

F7 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the trustees of the 2013 Lynne Marie Laube GRAT fbo Hayley Marie Allbright (the "HMA GRAT") on May 14, 2019.

F9 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $37.85 to $38.00, inclusive.

F8 · ownership.nature: The reportable securities are held by the HMA GRAT. The Reporting Person is the trustee of the HMA GRAT.

SEC source: 0001666071-19-000132 · wf-form4_157186323660684.xml · nonDerivative · entry 4

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 20,115

F7 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the trustees of the 2013 Lynne Marie Laube GRAT fbo Hayley Marie Allbright (the "HMA GRAT") on May 14, 2019.

F4 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $36.76 to $37.75, inclusive.

F8 · ownership.nature: The reportable securities are held by the HMA GRAT. The Reporting Person is the trustee of the HMA GRAT.

SEC source: 0001666071-19-000132 · wf-form4_157186323660684.xml · nonDerivative · entry 3

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 20,025

F3 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the trustees of the 2013 Lynne Marie Laube GRAT fbo Keegan George Allbright (the "KGA GRAT") on May 14, 2019.

F6 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $37.85 to $38.15, inclusive.

F5 · ownership.nature: The reportable securities are held by the KGA GRAT. The Reporting Person is the trustee of the KGA GRAT.

SEC source: 0001666071-19-000132 · wf-form4_157186323660684.xml · nonDerivative · entry 2

Laube Lynne Marie · CIK 0001730687 · Director · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 20,116

F3 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the trustees of the 2013 Lynne Marie Laube GRAT fbo Keegan George Allbright (the "KGA GRAT") on May 14, 2019.

F4 · price: The price reported is a weighted average sales price. These shares were sold in multiple transactions at prices ranging from $36.76 to $37.75, inclusive.

F5 · ownership.nature: The reportable securities are held by the KGA GRAT. The Reporting Person is the trustee of the KGA GRAT.

SEC source: 0001387131-19-008000 · ownership.xml · nonDerivative · entry 1

SOSIN CLIFFORD · CIK 0001697919 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 2,821,310

F1 · ownership.nature: 2,223,781 of these shares are owned directly by Sosin Partners, L.P., and Reporting Person is the Managing Member of CAS Investment Partners, LLC, which is investment manager to Sosin Partners, L.P. The remaining 597,929 shares are owned directly by CSWR Partners, L.P., and Reporting Person is the Managing Member of CAS Investment Partners, LLC, which is investment manager to CSWR Partners, L.P.

SEC source: 0001666071-19-000130 · wf-form4_157169042183244.xml · nonDerivative · entry 1

SOMERS KIRK · CIK 0001204015 · Chief Legal & Privacy Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,283

F1 · kind: These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 16, 2019.