Gasser Elizabeth Anne's Form 4 filing
Tandem Diabetes Care Inc (TNDM) · filed Aug 18, 2026
- Accession no.
- 0001438133-26-000128
- Filed
- Aug 18, 2026, 4:27 PM ET
- Trade date
- Aug 15, 2026
- Filing delay
- 3 days
- Rule 10b5-1 plan
- Not checked
This filing lists 4 non-derivative transactions and 2 derivative transactions. It was filed 3 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Gasser Elizabeth AnneCIK 0001866283 | Officer (EVP, Chief Strategy Officer) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 15, 2026 | Common Stock | MOption exerciseAcquired | +1,097 | $0.00 | $0 | 1,097 | Direct | |
| Aug 15, 2026 | Common Stock | FTax withholdingDisposed | −589 | $22.72 | −$13,382.08 | 508 | Direct | |
| Aug 15, 2026 | Common Stock | MOption exerciseAcquired | +1,917 | $0.00 | $0 | 2,425 | Direct | |
| Aug 15, 2026 | Common Stock | FTax withholdingDisposed | −1,029 | $22.72 | −$23,378.88 | 1,396 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 15, 2026 | Common Stock | MOption exerciseDisposed | −1,097 | $0.00 | $0 | 3,290 | Direct | |
| Aug 15, 2026 | Common Stock | MOption exerciseDisposed | −1,917 | $0.00 | $0 | 13,418 | Direct |
Footnotes
Livermore does not store Form 4 footnotes. For price ranges, how indirect holdings are held and trading plan details, read the original on SEC EDGAR.