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TANDEM DIABETES CARE INC

TNDM Net selling
CIK 0001438133 #2225 in the set updated 17 Sep 2026
Bought (120 mo)
$8.76M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$287.76M
$45.62 on a plan · $140.35M straight out of an exercise
Sold at will
$147.41M
110 of 313 sales
Net
−$279.00M
−$138.65M against sales at will

By person

25 insiders · 375 transactions
4.6×

John Sheridan holds only 4.6 times base salary in stock. $3.69M of shares against $790.58K in salary for 2025.

Salary from the company's own proxy. The shares are what John Sheridan last reported holding, valued at $23.05, the price Common Stock was last bought or sold at on the open market here, on 17 Mar 2026.

Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
BLICKENSTAFF KIM D
Director
$4.50M (3)
$149.33M (61)
−$144.83M
970,021
1.39%
$22.36M
—
HANSEN BRIAN B
EVP & CHIEF COMMERCIAL OFFICER
—
$25.00M (30) scheduled
−$25.00M
12,622
0.0181%
$290.94K
—
ROEDER DOUGLAS A
Director
$2.00M (2)
$25.78M (12)
−$23.78M
1,007,863
1.45%
$23.23M
−26.3%
Morrison Susan
EVP & Chief Admin. Officer
—
$18.79M (14) scheduled
−$18.79M
52,788
0.0759%
$1.22M
—
Vosseller Leigh
EVP & CHIEF FINANCIAL OFFICER
$530.13K (6)
$17.00M (26) scheduled
−$16.47M
77,910
0.1120%
$1.80M
+6,453%
BERGER DAVID B
EVP & Chief Operating Officer
—
$15.73M (50) scheduled
−$15.73M
8,273
0.0119%
$190.69K
+97.6%
Sheridan John F
PRESIDENT & CEO
$277.07K (2)
$14.15M (22) scheduled
−$13.87M
160,260
0.2303%
$3.69M
+20,499%
Allen Dick
Chair Emeritus
$608.68K (9)
$6.78M (29)
−$6.17M
57,038
0.0820%
$1.31M
+144.2%
TWOMEY CHRISTOPHER J
Director
$150.00K (2)
$5.29M (22)
−$5.14M
56,057
0.0806%
$1.29M
+141.1%
Gasser Elizabeth Anne
EVP, Chief Strategy Officer
—
$3.37M (4) scheduled
−$3.37M
34,505
0.0496%
$795.34K
+3,439%
Leal James
Chief Manufacturing Officer
—
$2.53M (15) scheduled
−$2.53M
16,876
0.0243%
$388.99K
+369.3%
ROBERTSON REBECCA B
Director
—
$2.19M (17) scheduled
−$2.19M
22,542
0.0324%
$519.59K
—
GREENE HOWARD E JR
Director
$100.00K (1)
$1.70M (7)
−$1.60M
30,000
0.0431%
$691.50K
+154.5%
Howell Peyton R
Director
$240.19K (7)
—
+$240.19K
29,836
0.0429%
$687.72K
—
Kyrillos Jean-Claude
EVP & Chief Operating Officer
$190.97K (1)
—
+$190.97K
30,290
0.0435%
$698.18K
—
Valencia Richard P.
Director
$99.06K (2)
—
+$99.06K
3,054
0.0044%
$70.39K
—
CAHILL EDWARD L
Director
—
$89.31K (1) scheduled
−$89.31K
23,274
0.0334%
$536.47K
−87.8%
Hansen Shannon Marie
EVP & Chief Legal Officer
$29.88K (1)
—
+$29.88K
33,585
0.0483%
$774.13K
—
McGroddy-Goetz Kathleen
Director
$21.45K (1)
$42.93K (1)
−$21.48K
26,612
0.0382%
$613.41K
—
Novara Mark David
EVP & CHIEF COMMERCIAL OFFICER
$12.36K (1)
$4.36K (2)
+$8.01K
40,317
0.0579%
$929.31K
—
Cajigas John
EVP, CFO & TREASURER
—
—
—
59,816
0.0860%
$1.38M
+22.1%
Carpenter Rick
EVP & Chief Technology Officer
—
—
—
32,148
0.0462%
$741.01K
—
Sodhi Rajwant
Director
—
—
—
24,280
0.0349%
$559.65K
—
Malagueira Joao Paulo Falcao
Director
—
—
—
22,458
0.0323%
$517.66K
—
Cha Myoungil
Director
—
—
—
22,458
0.0323%
$517.66K
—

Individual transactions

145
Insider
Date
Role
Action
Shares
Price
Amount
BERGER DAVID B
3 Mar 2023
EVP & Chief Operating Officer
Sold after exercise
10,000
$41.19
$411.88K
BERGER DAVID B
16 Dec 2022
EVP & Chief Operating Officer
Sold after exercise
10,000
$40.25
$402.50K
BERGER DAVID B
15 Dec 2022
EVP & Chief Operating Officer
Sold after exercise
15,000
$40.32
$604.80K
BERGER DAVID B
8 Jun 2022
EVP & Chief Operating Officer
Sold after exercise
3,097
$65.00
$201.31K
BERGER DAVID B
8 Jun 2022
EVP & Chief Operating Officer
Sold after exercise
7,000
$65.03
$455.21K
BLICKENSTAFF KIM D
17 May 2022
Director
Sold after exercise indirect
10,762
$92.91
$999.90K
TWOMEY CHRISTOPHER J
5 May 2022
Director
Sold after exercise indirect
90
$111.73
$10.06K
TWOMEY CHRISTOPHER J
5 May 2022
Director
Sold after exercise indirect
158
$111.73
$17.65K
ROBERTSON REBECCA B
2 May 2022
Director
Sold after exercise
967
$97.10
$93.90K
ROBERTSON REBECCA B
2 May 2022
Director
Sold after exercise
533
$96.05
$51.19K
BERGER DAVID B
1 Apr 2022
EVP & Chief Operating Officer
Sold after exercise
1,000
$117.88
$117.88K
BERGER DAVID B
16 Mar 2022
EVP & Chief Operating Officer
Sold after exercise
5,000
$108.37
$541.84K
BERGER DAVID B
1 Mar 2022
EVP & Chief Operating Officer
Sold after exercise
1,000
$112.68
$112.68K
BERGER DAVID B
1 Feb 2022
EVP, Bus Ops & Compliance
Sold after exercise
358
$118.89
$42.56K
BERGER DAVID B
1 Feb 2022
EVP, Bus Ops & Compliance
Sold after exercise
400
$117.78
$47.11K
BERGER DAVID B
1 Feb 2022
EVP, Bus Ops & Compliance
Sold after exercise
242
$116.67
$28.23K
ROBERTSON REBECCA B
1 Feb 2022
Director
Sold after exercise
533
$118.82
$63.33K
ROBERTSON REBECCA B
1 Feb 2022
Director
Sold after exercise
667
$117.89
$78.63K
ROBERTSON REBECCA B
1 Feb 2022
Director
Sold after exercise
300
$116.63
$34.99K
BERGER DAVID B
3 Jan 2022
EVP, Bus Ops & Compliance
Sold after exercise
170
$150.40
$25.57K
BERGER DAVID B
3 Jan 2022
EVP, Bus Ops & Compliance
Sold after exercise
830
$148.91
$123.60K
Leal James
27 Dec 2021
SVP, Operations
Sold after exercise
100
$152.27
$15.23K
Leal James
27 Dec 2021
SVP, Operations
Sold after exercise
1,266
$151.60
$191.93K
Leal James
27 Dec 2021
SVP, Operations
Sold after exercise
540
$150.95
$81.51K
Gasser Elizabeth Anne
27 Dec 2021
EVP, Chief Strategy Officer
Sold after exercise
714
$151.63
$108.26K
Gasser Elizabeth Anne
27 Dec 2021
EVP, Chief Strategy Officer
Sold after exercise
370
$150.84
$55.81K
BERGER DAVID B
15 Dec 2021
EVP, Bus Ops & Compliance
Sold after exercise
12,000
$144.25
$1.73M
Gasser Elizabeth Anne
7 Dec 2021
EVP, Chief Strategy Officer
Sold after exercise
1,083
$140.00
$151.62K
BERGER DAVID B
1 Dec 2021
EVP, Bus Ops & Compliance
Sold after exercise
100
$129.61
$12.96K
BERGER DAVID B
1 Dec 2021
EVP, Bus Ops & Compliance
Sold after exercise
900
$128.31
$115.48K
Leal James
29 Nov 2021
SVP, Operations
Sold after exercise
5
$132.92
$664.60
Leal James
29 Nov 2021
SVP, Operations
Sold after exercise
664
$131.54
$87.34K
Leal James
29 Nov 2021
SVP, Operations
Sold after exercise
1,236
$130.64
$161.47K
Morrison Susan
16 Nov 2021
EVP & Chief Admin. Officer
Sold after exercise
34,624
$142.21
$4.92M
Vosseller Leigh
3 Nov 2021
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
10,000
$140.05
$1.40M
Gasser Elizabeth Anne
3 Nov 2021
EVP, Chief Strategy Officer
Sold after exercise
21,785
$140.02
$3.05M
Morrison Susan
3 Nov 2021
EVP & Chief Admin. Officer
Sold after exercise
5,376
$142.00
$763.40K
BERGER DAVID B
1 Nov 2021
EVP, Bus Ops & Compliance
Sold after exercise
110
$136.39
$15.00K
BERGER DAVID B
1 Nov 2021
EVP, Bus Ops & Compliance
Sold after exercise
890
$135.61
$120.69K
ROBERTSON REBECCA B
1 Nov 2021
Director
Sold after exercise
278
$136.35
$37.91K
ROBERTSON REBECCA B
1 Nov 2021
Director
Sold after exercise
1,222
$135.64
$165.75K
Leal James
27 Oct 2021
SVP, Operations
Sold after exercise
1,904
$130.34
$248.17K
Vosseller Leigh
14 Oct 2021
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
10,000
$135.09
$1.35M
Morrison Susan
13 Oct 2021
EVP & Chief Admin. Officer
Sold after exercise
10,048
$132.01
$1.33M
BERGER DAVID B
12 Oct 2021
EVP, Bus Ops & Compliance
Sold after exercise
10,000
$129.28
$1.29M
Vosseller Leigh
12 Oct 2021
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
10,000
$130.00
$1.30M
BERGER DAVID B
1 Oct 2021
EVP, Bus Ops & Compliance
Sold after exercise
1,000
$118.00
$118.00K
Leal James
27 Sep 2021
SVP, Operations
Sold after exercise
1,044
$122.71
$128.11K
Leal James
27 Sep 2021
SVP, Operations
Sold after exercise
201
$121.99
$24.52K
Leal James
27 Sep 2021
SVP, Operations
Sold after exercise
660
$120.08
$79.25K
Vosseller Leigh
16 Sep 2021
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
6,500
$125.00
$812.50K
BERGER DAVID B
15 Sep 2021
EVP, Bus Ops & Compliance
Sold after exercise
4,300
$122.64
$527.33K
BERGER DAVID B
15 Sep 2021
EVP, Bus Ops & Compliance
Sold after exercise
3,068
$121.66
$373.26K
BERGER DAVID B
15 Sep 2021
EVP, Bus Ops & Compliance
Sold after exercise
1,632
$120.93
$197.36K
Vosseller Leigh
15 Sep 2021
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
3,500
$125.00
$437.50K
HANSEN BRIAN B
13 Sep 2021
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
1,300
$122.44
$159.17K
HANSEN BRIAN B
13 Sep 2021
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
1,900
$121.68
$231.19K
HANSEN BRIAN B
13 Sep 2021
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
2,180
$120.33
$262.32K
HANSEN BRIAN B
13 Sep 2021
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
11,800
$119.03
$1.40M
HANSEN BRIAN B
13 Sep 2021
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
15,000
$118.14
$1.77M
Vosseller Leigh
13 Sep 2021
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
2,000
$122.39
$244.78K
Vosseller Leigh
13 Sep 2021
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
1,300
$121.38
$157.79K
Vosseller Leigh
13 Sep 2021
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
6,700
$120.14
$804.94K
Leal James
7 Sep 2021
SVP, Operations
Sold after exercise
3,574
$123.00
$439.60K
Leal James
27 Aug 2021
SVP, Operations
Sold after exercise
167
$111.12
$18.56K
Leal James
27 Aug 2021
SVP, Operations
Sold after exercise
1,500
$110.59
$165.89K
BERGER DAVID B
17 Aug 2021
EVP, Chief Business/Compliance
Sold after exercise
5,000
$110.29
$551.45K
BERGER DAVID B
16 Aug 2021
EVP, Chief Business/Compliance
Sold after exercise
5,000
$109.40
$547.00K
Sheridan John F
9 Aug 2021
PRESIDENT & CEO
Sold after exercise
1,872
$108.29
$202.72K
Sheridan John F
9 Aug 2021
PRESIDENT & CEO
Sold after exercise
7,731
$107.49
$831.01K
Sheridan John F
6 Aug 2021
PRESIDENT & CEO
Sold after exercise
2,800
$109.39
$306.29K
Sheridan John F
6 Aug 2021
PRESIDENT & CEO
Sold after exercise
2,523
$108.03
$272.56K
Leal James
27 Jul 2021
SVP, Operations
Sold after exercise
1,666
$102.25
$170.35K
Leal James
28 Jun 2021
SVP, Operations
Sold after exercise
7,135
$100.00
$713.50K
ROBERTSON REBECCA B
9 Jun 2021
Director
Sold after exercise
500
$90.00
$45.00K
ROBERTSON REBECCA B
1 Jun 2021
Director
Sold after exercise
1,000
$85.11
$85.11K
BERGER DAVID B
28 May 2021
EVP, Chief Business/Compliance
Sold after exercise
1,765
$86.49
$152.65K
BERGER DAVID B
28 May 2021
EVP, Chief Business/Compliance
Sold after exercise
1,854
$86.45
$160.28K
TWOMEY CHRISTOPHER J
19 May 2021
Director
Sold after exercise indirect
112
$89.03
$9.97K
TWOMEY CHRISTOPHER J
19 May 2021
Director
Sold after exercise indirect
157
$89.03
$13.98K
BERGER DAVID B
18 May 2021
EVP, Chief Business/Compliance
Sold after exercise indirect
201
$89.14
$17.92K
BERGER DAVID B
11 Mar 2021
EVP, Chief Business/Compliance
Sold after exercise
8,646
$90.22
$780.04K
ROBERTSON REBECCA B
1 Mar 2021
Director
Sold after exercise
1,500
$96.14
$144.21K
ROBERTSON REBECCA B
1 Dec 2020
Director
Sold after exercise
1,500
$94.03
$141.04K
BLICKENSTAFF KIM D
10 Nov 2020
Director
Sold after exercise indirect
25,000
$100.09
$2.50M
Allen Dick
9 Nov 2020
Director
Sold after exercise indirect
4,478
$108.53
$485.99K
Allen Dick
9 Nov 2020
Director
Sold after exercise indirect
10,695
$107.61
$1.15M
Allen Dick
9 Nov 2020
Director
Sold after exercise indirect
5,259
$106.98
$562.59K
Sheridan John F
13 Oct 2020
PRESIDENT & CEO
Sold after exercise
3,223
$122.41
$394.52K
Sheridan John F
13 Oct 2020
PRESIDENT & CEO
Sold after exercise
5,380
$121.78
$655.19K
Sheridan John F
13 Oct 2020
PRESIDENT & CEO
Sold after exercise
6,397
$120.36
$769.95K
Vosseller Leigh
13 Oct 2020
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
1,022
$122.33
$125.02K
Vosseller Leigh
13 Oct 2020
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
2,580
$121.57
$313.64K
Vosseller Leigh
13 Oct 2020
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
6,398
$120.36
$770.07K
BERGER DAVID B
13 Oct 2020
EVP, Chief Legal & Compliance
Sold after exercise
5,000
$119.25
$596.25K
HANSEN BRIAN B
7 Oct 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
15,000
$117.76
$1.77M
HANSEN BRIAN B
29 Sep 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
4,489
$112.75
$506.13K
Sheridan John F
16 Sep 2020
PRESIDENT & CEO
Sold after exercise
401
$110.37
$44.26K
HANSEN BRIAN B
16 Sep 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
1,111
$114.03
$126.69K
HANSEN BRIAN B
16 Sep 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
9,414
$112.88
$1.06M
Sheridan John F
15 Sep 2020
PRESIDENT & CEO
Sold after exercise
9,599
$110.00
$1.06M
HANSEN BRIAN B
3 Sep 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
4,986
$112.89
$562.86K
HANSEN BRIAN B
3 Sep 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
200
$112.18
$22.44K
HANSEN BRIAN B
3 Sep 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
23,731
$111.48
$2.65M
HANSEN BRIAN B
3 Sep 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
10,215
$110.32
$1.13M
ROBERTSON REBECCA B
2 Sep 2020
Director
Sold after exercise
500
$116.89
$58.45K
ROBERTSON REBECCA B
2 Sep 2020
Director
Sold after exercise
866
$115.38
$99.92K
ROBERTSON REBECCA B
2 Sep 2020
Director
Sold after exercise
4,466
$114.58
$511.69K
ROBERTSON REBECCA B
2 Sep 2020
Director
Sold after exercise
1,800
$113.61
$204.50K
ROBERTSON REBECCA B
2 Sep 2020
Director
Sold after exercise
1,868
$112.31
$209.79K
Morrison Susan
1 Sep 2020
EVP & Chief Admin. Officer
Sold after exercise
5,930
$114.00
$676.02K
Morrison Susan
31 Aug 2020
EVP & Chief Admin. Officer
Sold after exercise
6,548
$114.00
$746.47K
Morrison Susan
28 Aug 2020
EVP & Chief Admin. Officer
Sold after exercise
7,522
$114.00
$857.51K
BLICKENSTAFF KIM D
18 Aug 2020
Director
Sold after exercise indirect
38,250
$103.49
$3.96M
BLICKENSTAFF KIM D
10 Aug 2020
Director
Sold after exercise indirect
500
$104.85
$52.42K
BLICKENSTAFF KIM D
10 Aug 2020
Director
Sold after exercise indirect
4,134
$104.32
$431.26K
BLICKENSTAFF KIM D
10 Aug 2020
Director
Sold after exercise indirect
4,248
$103.34
$438.98K
BLICKENSTAFF KIM D
7 Aug 2020
Director
Sold after exercise indirect
800
$108.58
$86.86K
BLICKENSTAFF KIM D
7 Aug 2020
Director
Sold after exercise indirect
17,439
$107.65
$1.88M
BLICKENSTAFF KIM D
7 Aug 2020
Director
Sold after exercise indirect
25,108
$106.94
$2.69M
BLICKENSTAFF KIM D
7 Aug 2020
Director
Sold after exercise indirect
117,897
$105.86
$12.48M
BLICKENSTAFF KIM D
6 Aug 2020
Director
Sold after exercise indirect
600
$107.07
$64.24K
BLICKENSTAFF KIM D
6 Aug 2020
Director
Sold after exercise indirect
121,698
$105.65
$12.86M
Sheridan John F
3 Aug 2020
PRESIDENT & CEO
Sold after exercise
100
$103.02
$10.30K
Sheridan John F
3 Aug 2020
PRESIDENT & CEO
Sold after exercise
33,100
$102.20
$3.38M
HANSEN BRIAN B
3 Aug 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
8,320
$106.11
$882.81K
HANSEN BRIAN B
3 Aug 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
4,354
$106.55
$463.91K
HANSEN BRIAN B
3 Aug 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
3,400
$105.99
$360.35K
HANSEN BRIAN B
3 Aug 2020
EVP & CHIEF COMMERCIAL OFFICER
Sold after exercise
7,880
$105.16
$828.69K
Vosseller Leigh
31 Jul 2020
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
10,000
$110.03
$1.10M
Morrison Susan
31 Jul 2020
EVP & Chief Admin. Officer
Sold after exercise
1,270
$110.59
$140.45K
Morrison Susan
31 Jul 2020
EVP & Chief Admin. Officer
Sold after exercise
10,213
$109.79
$1.12M
Morrison Susan
31 Jul 2020
EVP & Chief Admin. Officer
Sold after exercise
15,001
$108.91
$1.63M
Morrison Susan
31 Jul 2020
EVP & Chief Admin. Officer
Sold after exercise
18,672
$108.06
$2.02M
Morrison Susan
31 Jul 2020
EVP & Chief Admin. Officer
Sold after exercise
2,894
$106.94
$309.47K
Morrison Susan
31 Jul 2020
EVP & Chief Admin. Officer
Sold after exercise
1,950
$105.85
$206.40K
Vosseller Leigh
6 Jul 2020
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
10,000
$105.04
$1.05M
BERGER DAVID B
6 Jul 2020
EVP, Chief Legal & Compliance
Sold after exercise
680
$102.56
$69.74K
BERGER DAVID B
6 Jul 2020
EVP, Chief Legal & Compliance
Sold after exercise
1,320
$101.19
$133.57K
Vosseller Leigh
2 Jul 2020
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
1,738
$101.13
$175.76K
Vosseller Leigh
2 Jul 2020
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
8,262
$100.29
$828.59K
Vosseller Leigh
30 Jun 2020
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
10,000
$95.04
$950.39K
BERGER DAVID B
3 Jun 2020
EVP, Chief Legal & Compliance
Sold after exercise
2,000
$81.81
$163.62K
Vosseller Leigh
7 May 2020
EVP & CHIEF FINANCIAL OFFICER
Sold after exercise
10,000
$90.07
$900.75K
BERGER DAVID B
4 May 2020
EVP, Chief Legal & Compliance
Sold after exercise
1,350
$78.00
$105.30K
Showing 250 of 375 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 652
Amendments (4/A) skipped 4
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 1
Sales straight out of an exercise 202
Sales at will 110
Transactions with no price 0
Shares from compensation/vesting 4,925,455
Sales filed before the plan box existed 106
History held since 16 Nov 2016