TNDM Insider Trading Activity and SEC Form 4 Filings
Trump's trades in TNDM
From his financial disclosures
$30K+
2 purchases
$31K+
3 sales
Sale
Jul 29, 2026
Reported 55d later
$15K - $50K
Purchase
Jul 17, 2026
Reported 67d later
$15K - $50K
Sale
May 15, 2026
Reported 47d later
$1K - $15K
Sale
Mar 30, 2026
Reported 45d later
$15K - $50K
Purchase
Mar 4, 2026
Reported 71d later
$15K - $50K
Many orders in these accounts are placed by the account manager.
TNDM insider trading summary
Over the past 12 months, insiders at Tandem Diabetes Care Inc (TNDM) reported 3 sales worth $37K by 2 insiders and no open-market purchases on SEC Form 4. Net insider selling was $37K.
Latest TNDM insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Oct 27, 2026 | Christopher J Twomey | Director | Sell | $33K (1,700 @ $19.15) |
| Mar 17, 2026 | Mark David Novara | EVP & Chief Commercial Officer | Sell | $4K (187 @ $23.05) |
| Mar 5, 2026 | Mark David Novara | EVP & Chief Commercial Officer | Sell | $46 (2 @ $22.81) |
| Aug 11, 2025 | John F Sheridan | President & CEO | Buy | $102K (10,000 @ $10.23) |
| Aug 8, 2025 | Leigh Vosseller | EVP & Chief Financial Officer | Buy | $149K (13,720 @ $10.89) |
| Mar 7, 2025 | Jean-Claude Kyrillos | EVP & Chief Operating Officer | Buy | $191K (10,538 @ $18.12) |
| Nov 21, 2024 | Kim D Blickenstaff | Director | Sell | $941K (30,000 @ $31.38) |
| Nov 20, 2024 | Kim D Blickenstaff | Director | Sell | $300K (10,000 @ $30.00) |
| Nov 15, 2024 | Mark David Novara | EVP & Chief Commercial Officer | Buy | $12K (532 @ $23.24) |
| May 30, 2024 | Dick Allen | Director | Sell | $258K (5,000 @ $51.68) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.