// company-profile
Tandem Diabetes Care Inc
TNDM// activity-summary
Recent insider activity is bullish. Over the last 30 days, 7 insiders purchased shares. Buying was led by Morrison Susan.
// 90-day insight
Over the last 90 days, Tandem Diabetes Care Inc insiders bought $15K (43 transactions) and sold $172K (5 transactions).
- Most active insider: Gasser Elizabeth Anne with 13 transactions totaling $85K.
- Largest single sale: $101K by Novara Mark David on May 15, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Tandem Diabetes Care Inc as of 2026-03-31
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 2, 2026 | Gasser Elizabeth Anne | TNDM | Gift | 7,160 | $0.00 | $0K |
| Jun 2, 2026 | Gasser Elizabeth Anne | TNDM | Gift | 7,160 | $0.00 | $0K |
| May 29, 2026 | Morrison Susan | TNDM | Award | 29,136 | $0.00 | $0K |
| May 29, 2026 | Gasser Elizabeth Anne | TNDM | Award | 29,136 | $0.00 | $0K |
| May 29, 2026 | Carpenter Rick | TNDM | Award | 26,003 | $0.00 | $0K |
45 more transactions hidden
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