CIK 0001438133 · Large accelerated filer
TANDEM DIABETES CARE INC
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- TNDM
- Exchange
- Nasdaq
- Industry
- Surgical & Medical Instruments & Apparatus
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 204327508
- Phone
- 858-366-6900
- Business address
- 12400 HIGH BLUFF DRIVE, San Diego, CA, 92130
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $32,555
- in 1 filing, $33K under 10b5-1 plans
Net −$32,555. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-05-15 | Morrison Susan EVP & Chief Admin. Officer | Option exercise | +6,923 | 51,414 | ||
| 2026-05-15 | Morrison Susan EVP & Chief Admin. Officer | Shares withheld for taxes | −1,980 | $12.82 | $25K | 49,434 |
| 2026-05-15 | Morrison Susan EVP & Chief Admin. Officer | Grant or award | +1,336 | $10.90 | $15K | 50,770 |
| 2026-05-15 | Morrison Susan EVP & Chief Admin. Officer | Option exercise · Restricted Stock Unit | −1,503 | 0 | ||
| 2026-05-15 | Morrison Susan EVP & Chief Admin. Officer | Option exercise · Restricted Stock Unit | −1,097 | 4,387 | ||
| 2026-05-15 | Morrison Susan EVP & Chief Admin. Officer | Option exercise · Restricted Stock Unit | −6,923 | 13,845 | ||
| 2026-05-15 | Sheridan John F PRESIDENT & CEO | Option exercise | +5,472 | 130,163 | ||
| 2026-05-15 | Sheridan John F PRESIDENT & CEO | Shares withheld for taxes | −2,785 | $12.82 | $36K | 127,378 |
| 2026-05-15 | Sheridan John F PRESIDENT & CEO | Option exercise | +5,982 | 133,360 | ||
| 2026-05-15 | Sheridan John F PRESIDENT & CEO | Shares withheld for taxes | −3,044 | $12.82 | $39K | 130,316 |
| 2026-05-15 | Sheridan John F PRESIDENT & CEO | Option exercise | +39,735 | 170,051 | ||
| 2026-05-15 | Sheridan John F PRESIDENT & CEO | Shares withheld for taxes | −18,944 | $12.82 | $243K | 151,107 |
| 2026-05-15 | Sheridan John F PRESIDENT & CEO | Grant or award | +1,336 | $10.90 | $15K | 152,443 |
| 2026-05-15 | Sheridan John F PRESIDENT & CEO | Option exercise · Restricted Stock Unit | −5,472 | 0 | ||
| 2026-05-15 | Sheridan John F PRESIDENT & CEO | Option exercise · Restricted Stock Unit | −5,982 | 23,929 | ||
| 2026-05-15 | Sheridan John F PRESIDENT & CEO | Option exercise · Restricted Stock Unit | −39,735 | 79,471 | ||
| 2026-05-15 | Vosseller Leigh EVP & CHIEF FINANCIAL OFFICER | Option exercise | +1,503 | 40,914 | ||
| 2026-05-15 | Vosseller Leigh EVP & CHIEF FINANCIAL OFFICER | Shares withheld for taxes | −540 | $12.82 | $7K | 40,374 |
| 2026-05-15 | Vosseller Leigh EVP & CHIEF FINANCIAL OFFICER | Option exercise | +1,496 | 41,870 | ||
| 2026-05-15 | Vosseller Leigh EVP & CHIEF FINANCIAL OFFICER | Shares withheld for taxes | −537 | $12.82 | $7K | 41,333 |
Page 7 of 22 · 432 trades