Arkolith/Insider Trading/TNDM/Form 4

Vosseller Leigh

EVP & CHIEF FINANCIAL OFFICERTANDEM DIABETES CARE INC (TNDM) · full profile →Form 4 · filed May 19, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
10
7 non-derivative · 3 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
May 15, 2026Option exercise(M)2K—$041K
May 15, 2026Tax withholding(F)540$12.82$7K40K
May 15, 2026Option exercise(M)1K—$042K
May 15, 2026Tax withholding(F)537$12.82$7K41K
May 15, 2026Option exercise(M)10K—$052K
May 15, 2026Tax withholding(F)4K$12.82$48K48K
May 15, 2026Grant(A)1K$10.90$15K49K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
May 15, 2026Option exercise(M)2K—$00
May 15, 2026Option exercise(M)1K—$06K
May 15, 2026Option exercise(M)10K—$021K

Transaction Codes

M
Option exercise / conversion
F
Shares withheld for taxes
A
Grant / award

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001438133-26-000056) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML