TNDMCongressional Stock Trades
Tandem Diabetes Care, Inc.
Surgical & Medical Instruments & Apparatus
Congressional stock trades in Tandem Diabetes Care, Inc. (TNDM) from House and Senate STOCK Act filings. See which members of Congress bought or sold, disclosed amounts, and filing dates.
Total Trades
4
Politicians Trading
2
Last Traded
Sep 29, 2026
Trading History
| Politician | Notified | Traded | Type | Amount | Change |
|---|---|---|---|---|---|
| Gilbert Ray Cisneros, Jr.D | Oct 12, 2026 | Sep 29, 2026 | Buy | $1,001 - $15,000 | +12.67% |
| Josh GottheimerD | Oct 15, 2025 | Sep 22, 2025 | Buy | $1,001 - $15,000 | +42.96% |
| Josh GottheimerD | Apr 10, 2025 | Mar 19, 2025 | Sell | $1,001 - $15,000 | -9.46% |
| Gilbert Ray Cisneros, Jr.D | Apr 7, 2025 | Mar 4, 2025 | Buy | $1,001 - $15,000 | -4.21% |
Price History
About Tandem Diabetes Care, Inc.
Tandem Diabetes designs, manufactures, and markets durable insulin pumps for individuals with diabetes. The firm first entered this market in 2012 and has since introduced multiple generations of pumps leading to its current t:slim X2 device. The firm recently launched its smaller Mobi pump and continues to work on Tobi (a tubeless version of Mobi), and the Sigi tubeless patch pump. Nearly three-quarters of total revenue is derived from the US, with the remainder primarily from other developed nations. The pumps themselves generate just over half of total sales, and another one-third is from disposable infusion sets that need to be changed over every 2 to 3 days.
2 members of Congress have disclosed 4 trades in Tandem Diabetes Care, Inc. (TNDM). Most active: Gilbert Ray Cisneros, Jr. (2), Josh Gottheimer (2).
Across all disclosures, members of Congress reported 3 purchases and 1 sales of Tandem Diabetes Care, Inc. (TNDM). The most recent trade was on Sep 29, 2026.
Gilbert Ray Cisneros, Jr. disclosed buying Tandem Diabetes Care, Inc. (TNDM) on Sep 29, 2026, valued at $1,001 - $15,000.
Josh Gottheimer disclosed selling Tandem Diabetes Care, Inc. (TNDM) on Mar 19, 2025, valued at $1,001 - $15,000.
From House and Senate periodic transaction reports filed under the STOCK Act. Members of Congress must disclose trades within 45 days, and amounts are reported as ranges, not exact values.