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CIK 0001438133 · Large accelerated filer

TANDEM DIABETES CARE INC

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Ticker
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.

Pace of trading Bought Sold

Who's trading

90 days

  1. TWOMEY CHRISTOPHER J −$33K Director sold 7% of stake

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-02-17 Carpenter Rick Chief Technology Officer Option exercise +1,437 25,689
2026-02-17 Carpenter Rick Chief Technology Officer Shares withheld for taxes −808 $18.95 $15K 24,881
2026-02-17 Carpenter Rick Chief Technology Officer Option exercise +897 25,778
2026-02-17 Carpenter Rick Chief Technology Officer Shares withheld for taxes −504 $18.95 $10K 25,274
2026-02-17 Carpenter Rick Chief Technology Officer Option exercise · Restricted Stock Unit −1,437 1,437
2026-02-17 Carpenter Rick Chief Technology Officer Option exercise · Restricted Stock Unit −897 4,487
2026-02-17 Gasser Elizabeth Anne EVP, Chief Strategy Officer Option exercise +1,503 1,503
2026-02-17 Gasser Elizabeth Anne EVP, Chief Strategy Officer Shares withheld for taxes −887 $18.95 $17K 616
2026-02-17 Gasser Elizabeth Anne EVP, Chief Strategy Officer Option exercise +1,097 1,713
2026-02-17 Gasser Elizabeth Anne EVP, Chief Strategy Officer Shares withheld for taxes −647 $18.95 $12K 1,066
2026-02-17 Gasser Elizabeth Anne EVP, Chief Strategy Officer Option exercise · Restricted Stock Unit −1,503 1,503
2026-02-17 Gasser Elizabeth Anne EVP, Chief Strategy Officer Option exercise · Restricted Stock Unit −1,097 5,484
2026-02-17 Morrison Susan EVP & Chief Admin. Officer Option exercise +1,503 42,420
2026-02-17 Morrison Susan EVP & Chief Admin. Officer Shares withheld for taxes −510 $18.95 $10K 41,910
2026-02-17 Morrison Susan EVP & Chief Admin. Officer Option exercise +1,097 43,007
2026-02-17 Morrison Susan EVP & Chief Admin. Officer Shares withheld for taxes −372 $18.95 $7K 42,635
2026-02-17 Morrison Susan EVP & Chief Admin. Officer Option exercise · Restricted Stock Unit −1,503 1,503
2026-02-17 Morrison Susan EVP & Chief Admin. Officer Option exercise · Restricted Stock Unit −1,097 5,484
2026-02-17 Novara Mark David EVP & CHIEF COMMERCIAL OFFICER Option exercise +77 36,033
2026-02-17 Novara Mark David EVP & CHIEF COMMERCIAL OFFICER Shares withheld for taxes −62 $18.95 $1K 35,971

Page 9 of 22 · 432 trades