Stocks · Health care · Surgical & Medical Instruments & Apparatus

TANDEM DIABETES CARE INC

TNDM Clue Score37
United States Fiscal year ends December CIK 0001438133
$16.11 +2.78% Close, 9 Oct 2026

Price, with every insider trade on it

Closing prices, 12 months · point at a dot for who traded, or at the line for the close
16.11 on 9 Oct 2026
28 21 13 Oct 2025 Apr 2026 Oct 2026 13 Oct 2025 $13.87 14 Oct 2025 $14.38 15 Oct 2025 $14.75 16 Oct 2025 $15.29 17 Oct 2025 $14.79 20 Oct 2025 $15.54 21 Oct 2025 $15.39 22 Oct 2025 $14.96 23 Oct 2025 $14.66 24 Oct 2025 $14.95 27 Oct 2025 $14.94 28 Oct 2025 $15.10 29 Oct 2025 $15.15 30 Oct 2025 $14.59 31 Oct 2025 $14.00 3 Nov 2025 $14.36 4 Nov 2025 $15.21 5 Nov 2025 $14.67 6 Nov 2025 $13.33 7 Nov 2025 $16.26 10 Nov 2025 $16.37 11 Nov 2025 $17.52 12 Nov 2025 $18.06 13 Nov 2025 $17.53 14 Nov 2025 $18.61 17 Nov 2025 $18.34 18 Nov 2025 $18.71 19 Nov 2025 $18.74 20 Nov 2025 $19.50 21 Nov 2025 $21.28 24 Nov 2025 $21.47 25 Nov 2025 $21.84 26 Nov 2025 $20.73 28 Nov 2025 $21.01 1 Dec 2025 $20.51 2 Dec 2025 $19.62 3 Dec 2025 $19.93 4 Dec 2025 $20.71 5 Dec 2025 $20.92 8 Dec 2025 $20.74 9 Dec 2025 $20.44 10 Dec 2025 $21.45 11 Dec 2025 $20.97 12 Dec 2025 $21.39 15 Dec 2025 $22.11 16 Dec 2025 $22.60 17 Dec 2025 $22.42 18 Dec 2025 $21.80 19 Dec 2025 $22.07 22 Dec 2025 $23.26 23 Dec 2025 $22.62 24 Dec 2025 $22.48 26 Dec 2025 $22.35 29 Dec 2025 $22.33 30 Dec 2025 $22.51 31 Dec 2025 $21.98 2 Jan 2026 $21.55 5 Jan 2026 $23.15 6 Jan 2026 $23.54 7 Jan 2026 $22.71 8 Jan 2026 $22.50 9 Jan 2026 $21.70 12 Jan 2026 $21.35 13 Jan 2026 $20.90 14 Jan 2026 $20.87 15 Jan 2026 $21.07 16 Jan 2026 $20.16 20 Jan 2026 $20.49 21 Jan 2026 $20.74 22 Jan 2026 $20.59 23 Jan 2026 $19.90 26 Jan 2026 $20.20 27 Jan 2026 $20.15 28 Jan 2026 $19.11 29 Jan 2026 $19.76 30 Jan 2026 $19.89 2 Feb 2026 $20.09 3 Feb 2026 $19.44 4 Feb 2026 $18.99 5 Feb 2026 $18.94 6 Feb 2026 $19.17 9 Feb 2026 $18.89 10 Feb 2026 $19.54 11 Feb 2026 $19.66 12 Feb 2026 $18.69 13 Feb 2026 $18.95 17 Feb 2026 $18.84 18 Feb 2026 $18.94 19 Feb 2026 $18.52 20 Feb 2026 $24.57 23 Feb 2026 $28.26 24 Feb 2026 $26.90 25 Feb 2026 $26.01 26 Feb 2026 $25.79 27 Feb 2026 $25.30 2 Mar 2026 $25.23 3 Mar 2026 $23.74 4 Mar 2026 $23.41 5 Mar 2026 $22.63 6 Mar 2026 $21.14 9 Mar 2026 $20.88 10 Mar 2026 $21.88 11 Mar 2026 $22.16 12 Mar 2026 $20.88 13 Mar 2026 $21.59 16 Mar 2026 $21.91 17 Mar 2026 $23.91 18 Mar 2026 $23.85 19 Mar 2026 $24.63 20 Mar 2026 $24.82 23 Mar 2026 $25.09 24 Mar 2026 $24.51 25 Mar 2026 $24.26 26 Mar 2026 $23.32 27 Mar 2026 $21.00 30 Mar 2026 $19.59 31 Mar 2026 $19.17 1 Apr 2026 $18.81 2 Apr 2026 $18.61 6 Apr 2026 $19.17 7 Apr 2026 $18.28 8 Apr 2026 $19.35 9 Apr 2026 $19.68 10 Apr 2026 $19.18 13 Apr 2026 $20.10 14 Apr 2026 $21.11 15 Apr 2026 $20.66 16 Apr 2026 $20.09 17 Apr 2026 $20.61 20 Apr 2026 $21.24 21 Apr 2026 $20.03 22 Apr 2026 $20.78 23 Apr 2026 $20.68 24 Apr 2026 $20.36 27 Apr 2026 $19.82 28 Apr 2026 $18.63 29 Apr 2026 $18.16 30 Apr 2026 $19.53 1 May 2026 $19.42 4 May 2026 $19.87 5 May 2026 $19.42 6 May 2026 $18.03 7 May 2026 $18.47 8 May 2026 $15.48 11 May 2026 $14.77 12 May 2026 $14.69 13 May 2026 $14.11 14 May 2026 $14.15 15 May 2026 $12.82 18 May 2026 $13.53 19 May 2026 $13.86 20 May 2026 $15.04 21 May 2026 $15.76 22 May 2026 $14.97 26 May 2026 $14.54 27 May 2026 $14.82 28 May 2026 $16.72 29 May 2026 $17.20 1 Jun 2026 $19.12 2 Jun 2026 $18.60 3 Jun 2026 $18.03 4 Jun 2026 $19.45 5 Jun 2026 $19.34 8 Jun 2026 $18.47 9 Jun 2026 $17.61 10 Jun 2026 $16.23 11 Jun 2026 $15.80 12 Jun 2026 $16.60 15 Jun 2026 $16.76 16 Jun 2026 $16.69 17 Jun 2026 $15.40 18 Jun 2026 $15.30 22 Jun 2026 $14.34 23 Jun 2026 $14.41 24 Jun 2026 $15.02 25 Jun 2026 $15.76 26 Jun 2026 $16.24 29 Jun 2026 $15.83 30 Jun 2026 $15.09 1 Jul 2026 $15.75 2 Jul 2026 $15.32 6 Jul 2026 $15.42 7 Jul 2026 $15.43 8 Jul 2026 $15.16 9 Jul 2026 $15.37 10 Jul 2026 $15.41 13 Jul 2026 $16.25 14 Jul 2026 $15.54 15 Jul 2026 $15.28 16 Jul 2026 $16.29 17 Jul 2026 $17.08 20 Jul 2026 $18.10 21 Jul 2026 $17.60 22 Jul 2026 $16.91 23 Jul 2026 $16.90 24 Jul 2026 $17.12 27 Jul 2026 $17.17 28 Jul 2026 $17.76 29 Jul 2026 $18.59 30 Jul 2026 $19.01 31 Jul 2026 $19.50 3 Aug 2026 $20.11 4 Aug 2026 $20.20 5 Aug 2026 $19.59 6 Aug 2026 $18.79 7 Aug 2026 $22.38 10 Aug 2026 $22.81 11 Aug 2026 $23.44 12 Aug 2026 $23.44 13 Aug 2026 $23.13 14 Aug 2026 $22.72 17 Aug 2026 $22.26 18 Aug 2026 $23.73 19 Aug 2026 $23.46 20 Aug 2026 $22.57 21 Aug 2026 $22.32 24 Aug 2026 $22.22 25 Aug 2026 $21.58 26 Aug 2026 $21.37 27 Aug 2026 $21.40 28 Aug 2026 $21.43 31 Aug 2026 $22.01 1 Sep 2026 $21.28 2 Sep 2026 $20.56 3 Sep 2026 $20.43 4 Sep 2026 $19.90 8 Sep 2026 $19.88 9 Sep 2026 $19.11 10 Sep 2026 $18.31 11 Sep 2026 $17.11 14 Sep 2026 $16.81 15 Sep 2026 $16.28 16 Sep 2026 $17.53 17 Sep 2026 $17.23 18 Sep 2026 $16.87 21 Sep 2026 $17.62 22 Sep 2026 $17.50 23 Sep 2026 $16.38 24 Sep 2026 $15.22 25 Sep 2026 $15.72 28 Sep 2026 $16.42 29 Sep 2026 $16.57 30 Sep 2026 $16.31 1 Oct 2026 $16.50 2 Oct 2026 $16.50 5 Oct 2026 $16.52 6 Oct 2026 $16.16 7 Oct 2026 $15.84 8 Oct 2026 $15.68 9 Oct 2026 $16.11 Novara Mark David EVP & CHIEF COMMERCIAL OFFICER Sold on a plan $45.62 5 Mar 2026 · at $22.81 · 0.0% of stake Novara Mark David EVP & CHIEF COMMERCIAL OFFICER Sold at will $4.31K 17 Mar 2026 · at $23.05 · 0.5% of stake
0 buys1 sale at will1 planned sale

Key numbers

Fiscal year 2025, ended 31 Dec 2025, as filed
Revenue
$1.01B
Net income
$204.71M
Free cash flow
$29.67M
Gross margin
53.8%
Operating margin
-18.5%
Net margin
-20.2%
Return on equity
-131.9%
Return on capital
-29.2%
Debt to equity
2.26
Revenue growth, 1 yr
7.9%
Revenue growth, 5 yr
15.3% a year

Revenue and profit

Fiscal years, as filed with the SEC · point at a year for the detail
Full statements →
499M -34M FY20 Fiscal year 2020 Revenue $498.83M Net income $34.38M Margin -6.9% 703M 16M FY21 Fiscal year 2021 Revenue $702.80M Net income $15.57M Margin 2.2% · growth +40.9% 801M -95M FY22 Fiscal year 2022 Revenue $801.22M Net income $94.59M Margin -11.8% · growth +14.0% 748M -223M FY23 Fiscal year 2023 Revenue $747.72M Net income $222.61M Margin -29.8% · growth -6.7% 940M -96M FY24 Fiscal year 2024 Revenue $940.20M Net income $96.03M Margin -10.2% · growth +25.7% 1B -205M FY25 Fiscal year 2025 Revenue $1.01B Net income $204.71M Margin -20.2% · growth +7.9%
RevenueNet incomeLoss

Latest insider transactions

From Form 4, most recent first
All of them →
DateInsiderTypeValueOf own stake
17 Mar 2026 Novara Mark David
EVP & CHIEF COMMERCIAL OFFICER
Sold at will $4.31K 0.5%
5 Mar 2026 Novara Mark David
EVP & CHIEF COMMERCIAL OFFICER
Sold on a plan $45.62 0.0%
11 Aug 2025 Sheridan John F
PRESIDENT & CEO
Bought $102.32K 10.4%
8 Aug 2025 Vosseller Leigh
EVP & CHIEF FINANCIAL OFFICER
Bought $149.40K 116%
7 Mar 2025 Kyrillos Jean-Claude
EVP & Chief Operating Officer
Bought $190.97K opened
21 Nov 2024 BLICKENSTAFF KIM D
Director
Sold at will $941.40K 15.4%