TNDM

SEC source: 0001438133-21-000201 · wf-form4_163614513453049.xml · nonDerivative · entry 2

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,145

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 12, 2021.

F3 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $140.00 to $140.18. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000201 · wf-form4_163614513453049.xml · nonDerivative · entry 1

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,145

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000205 · wf-form4_163614620105717.xml · derivative · entry 3

Morrison Susan · CIK 0001582970 · EVP & Chief Admin. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 54,624

Underlying: Common Stock · 5,376 shares

Expires not disclosed

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

F4 · derivative.exercise_date: The options vested as to fifty (50%) of the underlying shares on 6/14/2019, and the remaining shares vested in twelve (12) equal monthly installments thereafter, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F5 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000205 · wf-form4_163614620105717.xml · nonDerivative · entry 2

Morrison Susan · CIK 0001582970 · EVP & Chief Admin. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,082

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 6, 2021.

F3 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $142.00 to $142.03. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000205 · wf-form4_163614620105717.xml · nonDerivative · entry 1

Morrison Susan · CIK 0001582970 · EVP & Chief Admin. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,458

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000199 · wf-form4_163597280304758.xml · derivative · entry 4

ROBERTSON REBECCA B · CIK 0001201585 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,892

Underlying: Common Stock · 1,108 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_date: The option shall vest in 36 equal monthly installments from January 2, 2019, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F6 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000199 · wf-form4_163597280304758.xml · nonDerivative · entry 3

ROBERTSON REBECCA B · CIK 0001201585 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 26, 2021.

F4 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $136.19 to $136.53. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000199 · wf-form4_163597280304758.xml · nonDerivative · entry 2

ROBERTSON REBECCA B · CIK 0001201585 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 278

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 26, 2021.

F3 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $135.05 to $136.04. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000199 · wf-form4_163597280304758.xml · nonDerivative · entry 1

ROBERTSON REBECCA B · CIK 0001201585 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,500

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000197 · wf-form4_163597229960218.xml · derivative · entry 5

BERGER DAVID B · CIK 0001422126 · EVP, Bus Ops & Compliance

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,000

Underlying: Common Stock · 1,000 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.

F6 · derivative.exercise_date: The options vested as to fifty (50%) of the underlying shares on 6/14/2019, and the remaining shares vested in twelve (12) equal monthly installments thereafter, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F7 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000197 · wf-form4_163597229960218.xml · nonDerivative · entry 3

BERGER DAVID B · CIK 0001422126 · EVP, Bus Ops & Compliance

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,247

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 11, 2021.

F4 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $136.32 to $136.53. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000197 · wf-form4_163597229960218.xml · nonDerivative · entry 2

BERGER DAVID B · CIK 0001422126 · EVP, Bus Ops & Compliance

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,357

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 11, 2021.

F3 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $135.05 to $136.00. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000197 · wf-form4_163597229960218.xml · nonDerivative · entry 1

BERGER DAVID B · CIK 0001422126 · EVP, Bus Ops & Compliance

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,247

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000188 · wf-form4_163545525610710.xml · derivative · entry 5

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,386

Underlying: Common Stock · 238 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_date: The options vested as to twenty-five (25%) of the underlying shares on 5/27/2021, and the remaining shares shall vest in thirty-six (36) equal monthly installments thereafter, subject to the 2013 Plan.

F4 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000188 · wf-form4_163545525610710.xml · derivative · entry 4

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,667

Underlying: Common Stock · 1,666 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_date: The options vested as to twenty-five (25%) of the underlying shares on 2/15/2020, and the remaining shares shall vest in thirty-six (36) equal monthly installments thereafter, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F4 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000188 · wf-form4_163545525610710.xml · nonDerivative · entry 3

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,751

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 11, 2020.

SEC source: 0001438133-21-000188 · wf-form4_163545525610710.xml · nonDerivative · entry 2

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,655

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000188 · wf-form4_163545525610710.xml · nonDerivative · entry 1

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,417

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001104659-21-128113 · tm2130602d1_4.xml · nonDerivative · entry 4

ROEDER DOUGLAS A · CIK 0001270735 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,766

F1 · kind: Represents a pro rata distribution, not for additional consideration, by Delphi BioInvestments VIII, L.P. ("DB VIII") and Delphi Ventures VIII, L.P. ("DV VIII") to their respective partners, and by Delphi Management Partners VIII, L.L.C. ("DMP"), the general partner of each of DB VIII and DV VIII, to its members and assignees, as applicable. This distribution was made pursuant to a Rule 10b5-1 distribution plan.

F5 · kind: This transaction is being voluntarily reported, reflects a change in form of beneficial ownership of the Reporting Person and is exempt from Section 16 pursuant to Rule 16a-13 under the Securities Exchange Act of 1934.

F4 · ownership.nature: The shares are held directly by The Roeder Family Trust dated 5/29/08, of which the Reporting Person is trustee.

SEC source: 0001104659-21-128113 · tm2130602d1_4.xml · nonDerivative · entry 3

ROEDER DOUGLAS A · CIK 0001270735 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 1,892

F1 · kind: Represents a pro rata distribution, not for additional consideration, by Delphi BioInvestments VIII, L.P. ("DB VIII") and Delphi Ventures VIII, L.P. ("DV VIII") to their respective partners, and by Delphi Management Partners VIII, L.L.C. ("DMP"), the general partner of each of DB VIII and DV VIII, to its members and assignees, as applicable. This distribution was made pursuant to a Rule 10b5-1 distribution plan.

F5 · kind: This transaction is being voluntarily reported, reflects a change in form of beneficial ownership of the Reporting Person and is exempt from Section 16 pursuant to Rule 16a-13 under the Securities Exchange Act of 1934.

F3 · ownership.nature: Shares are held directly by DMP. The Reporting Person is a managing member of DMP. As a managing member of DMP, the Reporting Person shares voting and investment power over the securities held by DMP, and may be deemed to have indirect beneficial ownership of such shares. The Reporting Person disclaims beneficial ownership of such securities, except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001104659-21-128113 · tm2130602d1_4.xml · nonDerivative · entry 2

ROEDER DOUGLAS A · CIK 0001270735 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 13,460

F1 · kind: Represents a pro rata distribution, not for additional consideration, by Delphi BioInvestments VIII, L.P. ("DB VIII") and Delphi Ventures VIII, L.P. ("DV VIII") to their respective partners, and by Delphi Management Partners VIII, L.L.C. ("DMP"), the general partner of each of DB VIII and DV VIII, to its members and assignees, as applicable. This distribution was made pursuant to a Rule 10b5-1 distribution plan.

F5 · kind: This transaction is being voluntarily reported, reflects a change in form of beneficial ownership of the Reporting Person and is exempt from Section 16 pursuant to Rule 16a-13 under the Securities Exchange Act of 1934.

F3 · ownership.nature: Shares are held directly by DMP. The Reporting Person is a managing member of DMP. As a managing member of DMP, the Reporting Person shares voting and investment power over the securities held by DMP, and may be deemed to have indirect beneficial ownership of such shares. The Reporting Person disclaims beneficial ownership of such securities, except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001104659-21-128113 · tm2130602d1_4.xml · nonDerivative · entry 1

ROEDER DOUGLAS A · CIK 0001270735 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 0

F1 · kind: Represents a pro rata distribution, not for additional consideration, by Delphi BioInvestments VIII, L.P. ("DB VIII") and Delphi Ventures VIII, L.P. ("DV VIII") to their respective partners, and by Delphi Management Partners VIII, L.L.C. ("DMP"), the general partner of each of DB VIII and DV VIII, to its members and assignees, as applicable. This distribution was made pursuant to a Rule 10b5-1 distribution plan.

F5 · kind: This transaction is being voluntarily reported, reflects a change in form of beneficial ownership of the Reporting Person and is exempt from Section 16 pursuant to Rule 16a-13 under the Securities Exchange Act of 1934.

F2 · ownership.nature: Shares are held directly by DB VIIII and DV VIII. The Reporting Person is a managing member of DMP. As a managing member of DMP, the Reporting Person shares voting and investment power over the securities held by DB VIII and DV VIII, and may be deemed to have indirect beneficial ownership of such shares. The Reporting Person disclaims beneficial ownership of such securities, except to the extent of his proportionate pecuniary interest therein.

SEC source: 0001438133-21-000184 · wf-form4_163424478685340.xml · derivative · entry 7

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,160

Underlying: Common Stock · 10,000 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.

F6 · derivative.exercise_date: The options vested as to fifty (50%) of the underlying shares on 6/14/2019, and the remaining shares vested in twelve (12) equal monthly installments thereafter, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F7 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000184 · wf-form4_163424478685340.xml · nonDerivative · entry 4

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,145

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 12, 2021.

F4 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $135.00 to $135.40. The Reporting Person undertakes to provide the SEC, the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000184 · wf-form4_163424478685340.xml · nonDerivative · entry 3

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,145

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000186 · wf-form4_163424496318707.xml · derivative · entry 5

Morrison Susan · CIK 0001582970 · EVP & Chief Admin. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 5,903 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.

F6 · derivative.exercise_date: The options vested as to twenty-five percent (25%) of the underlying shares on 5/17/2018, and the remaining shares vested in thirty-six (36) equal monthly installments thereafter, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F5 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000186 · wf-form4_163424496318707.xml · derivative · entry 4

Morrison Susan · CIK 0001582970 · EVP & Chief Admin. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,145 shares

Expires not disclosed

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

F4 · derivative.exercise_date: The option vested as to twenty-five percent (25%) of the underlying shares on 04/23/2014, and the remaining shares vested in thirty-six (36) equal monthly installments thereafter.

F5 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000186 · wf-form4_163424496318707.xml · nonDerivative · entry 3

Morrison Susan · CIK 0001582970 · EVP & Chief Admin. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,082

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 6, 2021.

F3 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $132.00 to $132.70. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000186 · wf-form4_163424496318707.xml · nonDerivative · entry 2

Morrison Susan · CIK 0001582970 · EVP & Chief Admin. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,130

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000186 · wf-form4_163424496318707.xml · nonDerivative · entry 1

Morrison Susan · CIK 0001582970 · EVP & Chief Admin. Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,227

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000184 · wf-form4_163424478685340.xml · derivative · entry 6

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,160

Underlying: Common Stock · 10,000 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.

F6 · derivative.exercise_date: The options vested as to fifty (50%) of the underlying shares on 6/14/2019, and the remaining shares vested in twelve (12) equal monthly installments thereafter, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F7 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000184 · wf-form4_163424478685340.xml · nonDerivative · entry 2

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,145

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 12, 2021.

F3 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $130.00 to $130.05. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000184 · wf-form4_163424478685340.xml · nonDerivative · entry 1

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,145

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000182 · wf-form4_163424460615495.xml · derivative · entry 4

BERGER DAVID B · CIK 0001422126 · EVP, Bus Ops & Compliance

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,000

Underlying: Common Stock · 10,000 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.

F5 · derivative.exercise_date: The options vested as to fifty (50%) of the underlying shares on 6/14/2019, and the remaining shares vested in twelve (12) equal monthly installments thereafter, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F6 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000182 · wf-form4_163424460615495.xml · nonDerivative · entry 2

BERGER DAVID B · CIK 0001422126 · EVP, Bus Ops & Compliance

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,247

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 11, 2021.

F3 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $129.25 to $129.49. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000182 · wf-form4_163424460615495.xml · nonDerivative · entry 1

BERGER DAVID B · CIK 0001422126 · EVP, Bus Ops & Compliance

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,247

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000180 · wf-form4_163338116397250.xml · derivative · entry 4

BERGER DAVID B · CIK 0001422126 · EVP, Bus Ops & Compliance

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 75,000

Underlying: Common Stock · 1,000 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.

F4 · derivative.exercise_date: The options vested as to fifty percent (50%) of the underlying shares on 6/14/2019, and the remaining shares vested in twelve (12) equal monthly installments thereafter.

F5 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000180 · wf-form4_163338116397250.xml · nonDerivative · entry 2

BERGER DAVID B · CIK 0001422126 · EVP, Bus Ops & Compliance

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,247

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 11, 2021.

SEC source: 0001438133-21-000180 · wf-form4_163338116397250.xml · nonDerivative · entry 1

BERGER DAVID B · CIK 0001422126 · EVP, Bus Ops & Compliance

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,247

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000178 · wf-form4_163294839352691.xml · derivative · entry 7

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,624

Underlying: Common Stock · 238 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.

F8 · derivative.exercise_date: The options vested as to twenty-five (25%) of the underlying shares on 5/27/2021, and the remaining shares shall vest in thirty-six (36) equal monthly installments thereafter, subject to the 2013 Plan.

F7 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000178 · wf-form4_163294839352691.xml · derivative · entry 6

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,333

Underlying: Common Stock · 1,667 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.

F6 · derivative.exercise_date: The options vested as to twenty-five (25%) of the underlying shares on 2/15/2020, and the remaining shares shall vest in thirty-six (36) equal monthly installments thereafter, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F7 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000178 · wf-form4_163294839352691.xml · nonDerivative · entry 5

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,751

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 11, 2020.

F5 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $122.18 to $122.93. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000178 · wf-form4_163294839352691.xml · nonDerivative · entry 4

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,795

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 11, 2020.

F4 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $121.04 to $122.03. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000178 · wf-form4_163294839352691.xml · nonDerivative · entry 3

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,996

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 11, 2020.

F3 · price: The price reported reflects the weighted average price per share of multiple transactions with prices per share ranging between $120.00 to $120.63. The Reporting Person undertakes to provide the Securities and Exchange Commission (the "SEC"), the issuer, and any security holder full information regarding the number of shares and the prices at which the shares were sold.

SEC source: 0001438133-21-000178 · wf-form4_163294839352691.xml · nonDerivative · entry 2

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,656

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000178 · wf-form4_163294839352691.xml · nonDerivative · entry 1

Leal James · CIK 0001866570 · SVP, Operations

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,418

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000176 · wf-form4_163191367972066.xml · derivative · entry 7

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,160

Underlying: Common Stock · 6,500 shares

Expires not disclosed

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

F4 · derivative.exercise_date: The options vested as to fifty (50%) of the underlying shares on 6/14/2019, and the remaining shares vested in twelve (12) equal monthly installments thereafter, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F5 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.

SEC source: 0001438133-21-000176 · wf-form4_163191367972066.xml · nonDerivative · entry 4

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,145

F2 · kind: The shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 12, 2021.

SEC source: 0001438133-21-000176 · wf-form4_163191367972066.xml · nonDerivative · entry 3

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,645

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: Represents shares of common stock received upon exercise of a stock option award.

SEC source: 0001438133-21-000176 · wf-form4_163191367972066.xml · derivative · entry 6

Vosseller Leigh · CIK 0001726322 · EVP & CHIEF FINANCIAL OFFICER

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,660

Underlying: Common Stock · 3,500 shares

Expires not disclosed

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

F4 · derivative.exercise_date: The options vested as to fifty (50%) of the underlying shares on 6/14/2019, and the remaining shares vested in twelve (12) equal monthly installments thereafter, subject to the terms of Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F5 · derivative.expiration_date: The expiration date for these options is 10 years from the date of grant.