Transaction · 0001438133-26-000073

Twomey Christopher J

TWOMEY CHRISTOPHER J, DIR, reported a transaction classified as exercise at TANDEM DIABETES CARE INC involving 8759.000000 shares for an estimated $0.00. Reported holdings after the transaction were 24434.000000 shares. A 10b5-1 reference was not detected in the stored filing text.

exerciseSEC transaction code MDIR
TNDMTANDEM DIABETES CARE INC
Trade date
May 21, 2026
Filing date
May 22, 2026
View on SEC Insider profile
Disclosed value$0Shares × reported price
Shares traded8.75k$0.00 per share
Holdings after24.4kDirect
% of reported position tradedUnavailableThis security and ownership context
How reported position traded is calculated

Calculated only for code-P purchases and code-S sales.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

TNDM price since this filing

Daily closing prices, with the filing date and available return windows
TNDM · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago +33.8%1w ago -5.5%1d ago +0.5%
Returns since7d +14.9%30d +2.2%90d +50.8%180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
exercise
Code M
Identifier
0001438133-26-000073
Common Stock
Transaction date
May 21, 2026
Filed May 22, 2026, 08:06 PM · 1d delay
Shares
8,759 sh
$0.00 per share
Estimated value
$0
Computed from shares × price
Holdings after
24,434 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Direct Ownership Large Holdings Increase
Filing-only score

+10 points

Compact filing score computed from stored Form 4 facts. Version v1.

Positive filing signal

This filing has a modest positive filing-only score. Treat it as a useful flag for review, not as a buy signal.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • timely_filing+4 points

    reporting_delay_days = 1

    Filing reported within two business days of the transaction.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    The securities are held by the Chris J. Twomey and Rebecca J. Twomey Family Trust UTD September 20, 2002.

  2. F2

    The securities are directly owned by Twomey Family Investments, LLC. The Reporting Person is co-manager of Twomey Family Investments, LLC and shares voting and investment power over

  3. these securities held by Twomey Family Investments, LLC and may be deemed to have indirect beneficial ownership of such shares. The Reporting Person disclaims beneficial ownership of such

  4. securities held by Twomey Family Investments, LLC, except to the extent of his proportionate pecuniary interest therein.

  5. F3

    Each restricted stock units (RSU) represents a contingent right to receive either one share of the Issuers common stock or cash in lieu thereof, at the Issuers discretion, in accordance with the terms…

  6. the Tandem Diabetes Care, Inc. 2023 Long-Term Incentive Plan, as amended, and agreements related thereto (the 2023 Plan).

  7. F4

    RSU will vest on the one-year anniversary of the grant date, subject to the terms of the 2023 Plan.

  8. F5

    On May 21, 2025, the Reporting Person was granted 8,759 RSUs, all of which vested and converted into shares of the Issuers common stock on the one-year anniversary thereof in accordance with

  9. the 2023 Plan.

Original filing · 0001438133-26-000073
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