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Carpenter Rick

Disclosed activity across 1 company

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22187
SEC CIK
0001513889

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CompanyLast reported asReport datePublished
TANDEM DIABETES CARE INCTNDM · Entity 4682EVP & Chief Technology OfficerAugust 15, 2026August 18, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

TANDEM DIABETES CARE INC

Report date August 15, 2026 · Filed August 18, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect32,148 Ending reported balance After 2026-08-15 transaction · row 4
4 source rows · reconciled sequence

Row 1 · 2026-08-15 · Exercise / conversion · Acquired 897 · Balance 31,815

Row 2 · 2026-08-15 · Tax withholding · Disposed 457 · Balance 31,358

F1: Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold.

Row 3 · 2026-08-15 · Exercise / conversion · Acquired 1,610 · Balance 32,968

Row 4 · 2026-08-15 · Tax withholding · Disposed 820 · Balance 32,148

F1: Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold.

Restricted Stock UnitSEC Table II · derivative / convertible securityDirect2,692 Reported balance After 2026-08-15 transaction · row 5 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 5 · 2026-08-15 · Exercise / conversion · Disposed 897 · Balance 2,692

F2: Awarded on May 23, 2024 pursuant to the Tandem Diabetes Care Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan).

F3: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2023 Plan.

F4: One-third of the RSUs granted on May 23, 2024 vested on May 15, 2025, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan.

Restricted Stock UnitSEC Table II · derivative / convertible securityDirect11,268 Reported balance After 2026-08-15 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2026-08-15 · Exercise / conversion · Disposed 1,610 · Balance 11,268

F5: Awarded on May 30, 2025 pursuant to the 2023 Plan.

F3: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2023 Plan.

F6: One-third of the RSUs granted on May 30, 2025 vested on May 15, 2026, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan.

Filing footnotes · ownership attribution and instrument terms

F1: Shares withheld by the Issuer to satisfy tax withholding requirements upon the vesting of restricted stock units (RSUs). No shares were sold.

F2: Awarded on May 23, 2024 pursuant to the Tandem Diabetes Care Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan).

F3: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2023 Plan.

F4: One-third of the RSUs granted on May 23, 2024 vested on May 15, 2025, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan.

F5: Awarded on May 30, 2025 pursuant to the 2023 Plan.

F6: One-third of the RSUs granted on May 30, 2025 vested on May 15, 2026, with the remaining RSUs vesting in eight (8) equal quarterly installments thereafter, subject to the terms of the 2023 Plan.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
February 15, 2024 Filed Feb 21, 2024 00:27 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionRestricted Stock Unit · Derivative 596 $0.00 $0.00
Disclosure

SEC source: 0001438133-24-000015 · wk-form4_1708475253.xml · derivative · entry 3

Carpenter Rick · CIK 0001513889 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,978

Underlying: Common Stock · 596 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 · security: Awarded on May 25, 2022 pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the 2013 Plan).

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2013 Plan.

F4 · derivative.exercise_date: RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on 5/15/2023, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter.

F4 · derivative.expiration_date: RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on 5/15/2023, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter.

Read SEC document
February 15, 2024 Filed Feb 21, 2024 00:27 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Tax withholdingCommon Stock 245 $24.29 $5,951.05
Disclosure

SEC source: 0001438133-24-000015 · wk-form4_1708475253.xml · nonDerivative · entry 2

Carpenter Rick · CIK 0001513889 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,840

F1 · kind: Shares withheld by Tandem Diabetes Care, Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.

Read SEC document
February 15, 2024 Filed Feb 21, 2024 00:27 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionCommon Stock 596 $0.00 $0.00
Disclosure

SEC source: 0001438133-24-000015 · wk-form4_1708475253.xml · nonDerivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,085

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.

Read SEC document
December 15, 2023 Filed Dec 19, 2023 21:14 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionRestricted Stock Unit · Derivative 406 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000257 · wk-form4_1703020435.xml · derivative · entry 3

Carpenter Rick · CIK 0001513889 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,247

Underlying: Common Stock · 406 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 · security: Awarded on December 15, 2021 pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the 2013 Plan).

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2013 Plan.

F4 · derivative.exercise_date: RSU vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on 12/15/2022, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter.

F4 · derivative.expiration_date: RSU vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on 12/15/2022, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter.

Read SEC document
December 15, 2023 Filed Dec 19, 2023 21:14 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Tax withholdingCommon Stock 141 $28.63 $4,036.83
Disclosure

SEC source: 0001438133-23-000257 · wk-form4_1703020435.xml · nonDerivative · entry 2

Carpenter Rick · CIK 0001513889 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,489

F1 · kind: Shares withheld by Tandem Diabetes Care, Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.

Read SEC document
December 15, 2023 Filed Dec 19, 2023 21:14 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionCommon Stock 406 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000257 · wk-form4_1703020435.xml · nonDerivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,630

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.

Read SEC document
November 15, 2023 Filed Nov 17, 2023 21:09 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionRestricted Stock Unit · Derivative 596 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000225 · wk-form4_1700255351.xml · derivative · entry 4

Carpenter Rick · CIK 0001513889 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,574

Underlying: Common Stock · 596 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 · security: Awarded on May 25, 2022 pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the 2013 Plan).

F4 · derivative.exercise_price: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2013 Plan.

F5 · derivative.exercise_date: RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on the 15th day of the month that corresponds to the anniversary of the grant date, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

F5 · derivative.expiration_date: RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on the 15th day of the month that corresponds to the anniversary of the grant date, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

Read SEC document
November 15, 2023 Filed Nov 17, 2023 21:09 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Tax withholdingCommon Stock 207 $18.20 $3,767.40
Disclosure

SEC source: 0001438133-23-000225 · wk-form4_1700255351.xml · nonDerivative · entry 3

Carpenter Rick · CIK 0001513889 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,224

F2 · shares: Shares withheld by Tandem Diabetes Care, Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.

Read SEC document
November 15, 2023 Filed Nov 17, 2023 21:09 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionCommon Stock 596 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000225 · wk-form4_1700255351.xml · nonDerivative · entry 2

Carpenter Rick · CIK 0001513889 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,431

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.

Read SEC document
November 15, 2023 Filed Nov 17, 2023 21:09 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 GrantCommon Stock 241 $15.47 $3,728.27
Disclosure

SEC source: 0001438133-23-000225 · wk-form4_1700255351.xml · nonDerivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technology Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,835

F1 · shares: The reporting person is voluntarily reporting the acquisition of shares of common stock pursuant to the Tandem Diabetes Care, Inc. Amended and Restated 2013 Employee Stock Purchase Plan (ESPP), for the ESPP purchase period of May 16, 2023 through November 15, 2023. This transaction is also exempt under Rule 16b-3(c).

Read SEC document
September 15, 2023 Filed Sep 19, 2023 20:21 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionRestricted Stock Unit · Derivative 406 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000198 · wk-form4_1695154874.xml · derivative · entry 3

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,653

Underlying: Common Stock · 406 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 · security: Awarded on December 15, 2021 pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the 2013 Plan).

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2013 Plan.

F4 · derivative.exercise_date: RSU vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on 12/15/2022, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter.

F4 · derivative.expiration_date: RSU vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on 12/15/2022, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter.

Read SEC document
September 15, 2023 Filed Sep 19, 2023 20:21 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Tax withholdingCommon Stock 141 $21.75 $3,066.75
Disclosure

SEC source: 0001438133-23-000198 · wk-form4_1695154874.xml · nonDerivative · entry 2

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,594

F1 · kind: Shares withheld by Tandem Diabetes Care, Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.

Read SEC document
September 15, 2023 Filed Sep 19, 2023 20:21 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionCommon Stock 406 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000198 · wk-form4_1695154874.xml · nonDerivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,735

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.

Read SEC document
August 15, 2023 Filed Aug 17, 2023 20:20 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionRestricted Stock Unit · Derivative 595 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000164 · wk-form4_1692303635.xml · derivative · entry 3

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,170

Underlying: Common Stock · 595 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 · security: Awarded on May 25, 2022 pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the 2013 Plan).

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2013 Plan.

F4 · derivative.exercise_date: RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on the 15th day of the month that corresponds to the anniversary of the grant date, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

F4 · derivative.expiration_date: RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on the 15th day of the month that corresponds to the anniversary of the grant date, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

Read SEC document
August 15, 2023 Filed Aug 17, 2023 20:20 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Tax withholdingCommon Stock 206 $28.88 $5,949.28
Disclosure

SEC source: 0001438133-23-000164 · wk-form4_1692303635.xml · nonDerivative · entry 2

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,329

F1 · kind: Shares withheld by Tandem Diabetes Care, Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.

Read SEC document
August 15, 2023 Filed Aug 17, 2023 20:20 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionCommon Stock 595 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000164 · wk-form4_1692303635.xml · nonDerivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,535

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.

Read SEC document
June 15, 2023 Filed Jun 16, 2023 20:04 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionRestricted Stock Unit · Derivative 406 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000139 · wk-form4_1686945869.xml · derivative · entry 3

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,059

Underlying: Common Stock · 406 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 · security: Awarded on December 15, 2021 pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the 2013 Plan).

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2013 Plan.

F4 · derivative.exercise_date: RSU vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on 12/15/2022, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter.

F4 · derivative.expiration_date: RSU vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on 12/15/2022, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter.

Read SEC document
June 15, 2023 Filed Jun 16, 2023 20:04 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Tax withholdingCommon Stock 141 $27.21 $3,836.61
Disclosure

SEC source: 0001438133-23-000139 · wk-form4_1686945869.xml · nonDerivative · entry 2

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,940

F1 · kind: Shares withheld by Tandem Diabetes Care, Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.

Read SEC document
June 15, 2023 Filed Jun 16, 2023 20:04 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionCommon Stock 406 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000139 · wk-form4_1686945869.xml · nonDerivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,081

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.

Read SEC document
May 25, 2023 Filed May 31, 2023 01:38 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 GrantRSU 2023 05 25 · Derivative 17,245 $0.00 Strike: $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000128 · wf-form4_168549707135582.xml · derivative · entry 2

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,245

Underlying: Common Stock · 17,245 shares

Expires not disclosed

F1 · security: Awarded on May 25, 2023 pursuant to the Tandem Diabetes Care, Inc. 2023 Long-Term Incentive Plan (the 2023 Plan).

F2 · derivative.exercise_price: Each restricted stock unit (RSU) represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2023 Plan.

F3 · derivative.exercise_date: RSU vest as to thiry-three percent (33%) of the total number of shares subject to the RSU on 5/15/2024, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter.

F3 · derivative.expiration_date: RSU vest as to thiry-three percent (33%) of the total number of shares subject to the RSU on 5/15/2024, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter.

Read SEC document
May 15, 2023 Filed May 17, 2023 22:13 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionRestricted Stock Unit · Derivative 2,383 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000083 · wf-form4_168436159136000.xml · derivative · entry 4

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,765

Underlying: Common Stock · 2,383 shares

Expires not disclosed

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

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan (the 2013 Plan).

F4 · derivative.exercise_date: RSU granted on 5/25/2022 vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on the 15th day of the month that corresponds to the anniversary of the grant date, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

F4 · derivative.expiration_date: RSU granted on 5/25/2022 vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on the 15th day of the month that corresponds to the anniversary of the grant date, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

Read SEC document
May 15, 2023 Filed May 17, 2023 22:13 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Tax withholdingCommon Stock 825 $32.13 $26,507.25
Disclosure

SEC source: 0001438133-23-000083 · wf-form4_168436159136000.xml · nonDerivative · entry 3

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,675

F2 · kind: Shares withheld by Tandem Diabetes Care, Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.

Read SEC document
May 15, 2023 Filed May 17, 2023 22:13 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionCommon Stock 2,383 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000083 · wf-form4_168436159136000.xml · nonDerivative · entry 2

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,500

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.

Read SEC document
May 15, 2023 Filed May 17, 2023 22:13 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 GrantCommon Stock 454 $27.32 $12,403.28
Disclosure

SEC source: 0001438133-23-000083 · wf-form4_168436159136000.xml · nonDerivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,117

F1 · shares: The reporting person is voluntarily reporting the acquisition of shares of common stock pursuant to the Tandem Diabetes Care, Inc. Amended and Restated 2013 Employee Stock Purchase Plan (ESPP), for the ESPP purchase period of November 16, 2022 through May 15, 2023. This transaction is also exempt under Rule 16b-3(c).

Read SEC document
March 15, 2023 Filed Mar 17, 2023 21:06 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionRestricted Stock Unit · Derivative 406 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000052 · wf-form4_167908716820308.xml · derivative · entry 3

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,465

Underlying: Common Stock · 406 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 · security: Granted pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan (the "2013 Plan").

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2013 Plan.

F4 · derivative.exercise_date: RSUs granted on 12/15/2021 vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on the one year anniversary of the grant date, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

F4 · derivative.expiration_date: RSUs granted on 12/15/2021 vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on the one year anniversary of the grant date, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

Read SEC document
March 15, 2023 Filed Mar 17, 2023 21:06 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Tax withholdingCommon Stock 138 $42.14 $5,815.32
Disclosure

SEC source: 0001438133-23-000052 · wf-form4_167908716820308.xml · nonDerivative · entry 2

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,663

F1 · kind: Shares withheld by Tandem Diabetes Care, Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.

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March 15, 2023 Filed Mar 17, 2023 21:06 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionCommon Stock 406 $0.00 $0.00
Disclosure

SEC source: 0001438133-23-000052 · wf-form4_167908716820308.xml · nonDerivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,801

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.

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December 15, 2022 Filed Dec 19, 2022 22:26 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionRestricted Stock Unit · Derivative 1,624 $0.00 $0.00
Disclosure

SEC source: 0001438133-22-000259 · wf-form4_167148873402801.xml · derivative · entry 3

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,871

Underlying: Common Stock · 1,624 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 · security: Granted pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan (the "2013 Plan").

F3 · derivative.exercise_price: Each RSU represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2013 Plan.

F4 · derivative.exercise_date: RSUs granted on 12/15/2021 vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on the one year anniversary of the grant date, and the remaining shares shall vest in twelve(12) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

F4 · derivative.expiration_date: RSUs granted on 12/15/2021 vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on the one year anniversary of the grant date, and the remaining shares shall vest in twelve(12) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

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December 15, 2022 Filed Dec 19, 2022 22:26 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Tax withholdingCommon Stock 562 $40.42 $22,716.04
Disclosure

SEC source: 0001438133-22-000259 · wf-form4_167148873402801.xml · nonDerivative · entry 2

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,395

F1 · kind: Shares withheld by Tandem Diabetes Care, Inc. (the Company) to satisfy tax withholding requirements on vesting of restricted stock units (RSU). No shares were sold.

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December 15, 2022 Filed Dec 19, 2022 22:26 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 Exercise / conversionCommon Stock 1,624 $0.00 $0.00
Disclosure

SEC source: 0001438133-22-000259 · wf-form4_167148873402801.xml · nonDerivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,957

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.

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November 15, 2022 Filed Nov 17, 2022 23:39 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 GrantCommon Stock 333 $35.93 $11,964.69
Disclosure

SEC source: 0001438133-22-000225 · wf-form4_166872835116265.xml · nonDerivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 333

F1 · shares: The reporting person is voluntarily reporting the acquisition of shares of common stock pursuant to the Tandem Diabetes Care, Inc. Amended and Restated 2013 Employee Stock Purchase Plan ("ESPP"), for the ESPP purchase period of May 17, 2022 through November 15, 2022. This transaction is also exempt under Rule 16b-3(c).

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May 25, 2022 Filed May 28, 2022 01:37 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 GrantRestricted Stock Unit · Derivative 7,148 $0.00 $0.00
Disclosure

SEC source: 0001438133-22-000110 · wf-form4_165370182993865.xml · derivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,148

Underlying: Common Stock · 7,148 shares

Expires not disclosed

F1 · security: Awarded on May 25, 2022 pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F2 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive either one share of common stock of the Issuer or cash in lieu thereof, at the Issuer's discretion, in accordance with the terms of the 2013 Plan.

F3 · derivative.exercise_date: RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on the 15th day of the month that corresponds to the anniversary of the grant date, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

F3 · derivative.expiration_date: RSU vest as to thirty-three percent (33%) of the total number of shares subject to the RSU on the 15th day of the month that corresponds to the anniversary of the grant date, and the remaining shares shall vest in eight (8) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

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December 15, 2021 Filed Jan 27, 2022 23:21 UTC TANDEM DIABETES CARE INC TNDM · Entity 4682 GrantRestricted Stock Unit · Derivative 6,495 $0.00 $0.00
Disclosure

SEC source: 0001438133-22-000006 · wf-form4_164332569171949.xml · derivative · entry 1

Carpenter Rick · CIK 0001513889 · Chief Technical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,495

Underlying: Common Stock · 6,495 shares

Expires not disclosed

F1 · security: Awarded on December 15, 2021 pursuant to the Tandem Diabetes Care, Inc. 2013 Stock Incentive Plan, as amended, and the agreements related thereto (the "2013 Plan").

F2 · derivative.exercise_price: Each restricted stock unit (RSU) represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_date: RSU vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on the one-year anniversary of the grant date, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

F3 · derivative.expiration_date: RSU vest as to twenty-five percent (25%) of the total number of shares subject to the RSU on the one-year anniversary of the grant date, and the remaining shares shall vest in twelve (12) equal quarterly installments thereafter, subject to the terms of the 2013 Plan.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.