Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Tandem Diabetes Care Inc (TNDM) since 2015 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Tandem Diabetes Care Inc. (See page 1 of this report.) Table 2 shows the detailed insider transactions. This company's CIK number is 1438133.
Total stock buying since 2015: $8,760,324.
Total stock sales since 2015: $288,069,064.
Total stock option exercises since 2015: $40,897,276.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 34,258 | $442,699 | 0 | $0 | 281,611 | $727,316 |
| 2024 | 532 | $12,363 | 45,000 | $1,499,800 | 122,781 | $2,135,032 |
| 2023 | 30,150 | $725,493 | 10,000 | $411,880 | 78,194 | $188,600 |
| 2022 | 7,000 | $511,000 | 61,264 | $4,357,679 | 114,161 | $1,809,566 |
| 2021 | 0 | $0 | 742,594 | $80,143,135 | 298,653 | $7,120,813 |
| 2020 | 0 | $0 | 1,150,064 | $113,485,413 | 1,128,650 | $26,226,483 |
| 2019 | 0 | $0 | 1,188,342 | $77,361,199 | 267,000 | $1,512,598 |
| 2018 | 1,963,593 | $4,068,819 | 262,290 | $9,707,524 | 320,700 | $1,090,600 |
| 2017 | 1,885,700 | $2,999,950 | 0 | $0 | 0 | $0 |
| 2016 | 0 | $0 | 25,000 | $201,984 | 25,000 | $27,650 |
| 2015 | 0 | $0 | 73,000 | $900,450 | 53,000 | $58,618 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2021-09-02 | Blickenstaff Kim D | Sale | 28,700 | 113.81 | 3,266,203 |
| 2021-08-27 | Leal James (SVP, Operations) | Sale | 1,667 | 110.86 | 184,795 |
| 2021-08-27 | Leal James (SVP, Operations) | Option Ex | 1,976 | 25.75 | 50,882 |
| 2021-08-27 | Gasser Elizabeth Anne (EVP, Chief Strategy Officer) | Option Ex | 372 | .00 | 0 |
| 2021-08-27 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Option Ex | 407 | .00 | 0 |
| 2021-08-27 | Morrison Susan (EVP & Chief Admin. Officer) | Option Ex | 407 | .00 | 0 |
| 2021-08-27 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Option Ex | 407 | .00 | 0 |
| 2021-08-27 | Berger David B (EVP, Chief Business/Compliance) | Option Ex | 407 | .00 | 0 |
| 2021-08-27 | Sheridan John F (PRESIDENT & CEO) | Option Ex | 820 | .00 | 0 |
| 2021-08-27 | Blickenstaff Kim D | Option Ex | 28,700 | 3.50 | 100,450 |
| 2021-08-17 | Berger David B (EVP, Chief Business/Compliance) | Sale | 5,000 | 110.29 | 551,450 |
| 2021-08-17 | Berger David B (EVP, Chief Business/Compliance) | Option Ex | 5,000 | 18.86 | 94,300 |
| 2021-08-17 | Blickenstaff Kim D | Sale | 25,760 | 108.61 | 2,797,690 |
| 2021-08-16 | Morrison Susan (EVP & Chief Admin. Officer) | Option Ex | 80 | 73.73 | 5,898 |
| 2021-08-16 | Berger David B (EVP, Chief Business/Compliance) | Sale | 5,000 | 109.40 | 547,000 |
| 2021-08-16 | Berger David B (EVP, Chief Business/Compliance) | Option Ex | 5,000 | 18.86 | 94,300 |
| 2021-08-16 | Blickenstaff Kim D | Sale | 24,240 | 109.07 | 2,643,856 |
| 2021-08-13 | Blickenstaff Kim D | Sale | 50,000 | 107.20 | 5,359,850 |
| 2021-08-12 | Blickenstaff Kim D | Sale | 13,990 | 105.50 | 1,475,931 |
| 2021-08-10 | Blickenstaff Kim D | Sale | 3,210 | 107.21 | 344,134 |
| 2021-08-09 | Sheridan John F (PRESIDENT & CEO) | Sale | 9,603 | 107.89 | 1,036,067 |
| 2021-08-09 | Sheridan John F (PRESIDENT & CEO) | Option Ex | 9,603 | 18.86 | 181,112 |
| 2021-08-09 | Blickenstaff Kim D | Sale | 80,000 | 107.64 | 8,611,280 |
| 2021-08-06 | Sheridan John F (PRESIDENT & CEO) | Sale | 5,323 | 108.71 | 578,663 |
| 2021-08-06 | Sheridan John F (PRESIDENT & CEO) | Option Ex | 5,323 | 12.97 | 69,055 |
| 2021-08-06 | Blickenstaff Kim D | Sale | 2,800 | 109.39 | 306,303 |
| 2021-08-03 | Howell Peyton R | Option Ex | 948 | .00 | 0 |
| 2021-08-02 | Robertson Rebecca B | Sale | 1,500 | 107.51 | 161,263 |
| 2021-07-30 | Allen Dick | Sale | 2,526 | 107.00 | 270,282 |
| 2021-07-29 | Twomey Christopher J | Sale | 8,000 | 105.00 | 840,000 |
| 2021-07-27 | Leal James (SVP, Operations) | Sale | 1,666 | 102.25 | 170,348 |
| 2021-07-27 | Leal James (SVP, Operations) | Option Ex | 1,666 | 51.50 | 85,799 |
| 2021-06-09 | Robertson Rebecca B | Sale | 500 | 90.00 | 45,000 |
| 2021-06-09 | Robertson Rebecca B | Option Ex | 500 | 34.00 | 17,000 |
| 2021-06-08 | Mcgroddy-goetz Kathleen | Option Ex | 1,219 | .00 | 0 |
| 2021-06-08 | Blickenstaff Kim D | Sale | 38,000 | 88.44 | 3,360,681 |
| 2021-06-01 | Robertson Rebecca B | Sale | 1,000 | 85.11 | 85,115 |
| 2021-06-01 | Robertson Rebecca B | Option Ex | 1,000 | 34.00 | 34,000 |
| 2021-05-28 | Berger David B (EVP, Chief Business/Compliance) | Sale | 3,619 | 86.47 | 312,934 |
| 2021-05-28 | Berger David B (EVP, Chief Business/Compliance) | Option Ex | 1,854 | 9.00 | 16,686 |
| 2021-05-27 | Morrison Susan (EVP & Chief Admin. Officer) | Option Ex | 1,626 | .00 | 0 |
| 2021-05-27 | Allen Dick | Option Ex | 1,892 | .00 | 0 |
| 2021-05-27 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Option Ex | 1,626 | .00 | 0 |
| 2021-05-27 | Berger David B (EVP, Chief Business/Compliance) | Option Ex | 1,626 | .00 | 0 |
| 2021-05-27 | Sheridan John F (PRESIDENT & CEO) | Option Ex | 3,279 | .00 | 0 |
| 2021-05-27 | Roeder Douglas A | Option Ex | 1,892 | .00 | 0 |
| 2021-05-27 | Twomey Christopher J | Option Ex | 1,892 | .00 | 0 |
| 2021-05-27 | Blickenstaff Kim D | Option Ex | 1,892 | .00 | 0 |
| 2021-05-27 | Robertson Rebecca B | Option Ex | 1,892 | .00 | 0 |
| 2021-05-19 | Twomey Christopher J | Sale | 269 | 89.03 | 23,949 |
| 2021-05-19 | Twomey Christopher J | Option Ex | 324 | 73.73 | 23,887 |
| 2021-05-18 | Berger David B (EVP, Chief Business/Compliance) | Sale | 201 | 89.14 | 17,917 |
| 2021-05-18 | Berger David B (EVP, Chief Business/Compliance) | Option Ex | 243 | 73.73 | 17,915 |
| 2021-04-22 | Twomey Christopher J | Sale | 4,802 | 95.00 | 456,190 |
| 2021-04-21 | Twomey Christopher J | Sale | 3,198 | 95.02 | 303,867 |
| 2021-03-16 | Blickenstaff Kim D | Sale | 51,022 | 87.54 | 4,466,669 |
| 2021-03-15 | Blickenstaff Kim D | Sale | 148,978 | 87.48 | 13,032,297 |
| 2021-03-11 | Berger David B (EVP, Chief Business/Compliance) | Sale | 8,646 | 90.22 | 780,042 |
| 2021-03-11 | Berger David B (EVP, Chief Business/Compliance) | Option Ex | 8,646 | 9.00 | 77,814 |
| 2021-03-01 | Robertson Rebecca B | Sale | 1,500 | 96.14 | 144,214 |
| 2021-03-01 | Robertson Rebecca B | Option Ex | 1,500 | 34.00 | 51,000 |
| 2020-12-31 | Cahill Edward L | Option Ex | 1,892 | .00 | 0 |
| 2020-12-16 | Blickenstaff Kim D | Sale | 94,600 | 88.42 | 8,364,815 |
| 2020-12-15 | Blickenstaff Kim D | Sale | 13,598 | 91.74 | 1,247,534 |
| 2020-12-11 | Blickenstaff Kim D | Sale | 9,150 | 93.00 | 850,950 |
| 2020-12-09 | Blickenstaff Kim D | Sale | 15,850 | 94.64 | 1,500,028 |
| 2020-12-01 | Blickenstaff Kim D | Sale | 25,000 | 97.01 | 2,425,175 |
| 2020-12-01 | Robertson Rebecca B | Sale | 1,500 | 94.03 | 141,040 |
| 2020-12-01 | Robertson Rebecca B | Option Ex | 1,500 | 34.00 | 51,000 |
| 2020-11-12 | Blickenstaff Kim D | Sale | 16,802 | 106.34 | 1,786,791 |
| 2020-11-10 | Blickenstaff Kim D | Sale | 25,000 | 100.09 | 2,502,275 |
| 2020-11-10 | Blickenstaff Kim D | Option Ex | 6,048 | 11.06 | 66,884 |
| 2020-11-09 | Allen Dick | Sale | 20,432 | 107.70 | 2,200,608 |
| 2020-11-09 | Allen Dick | Option Ex | 20,432 | 66.36 | 1,355,867 |
| 2020-10-13 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Sale | 10,000 | 121.42 | 1,214,180 |
| 2020-10-13 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Option Ex | 10,000 | 18.86 | 188,600 |
| 2020-10-13 | Berger David B (EVP, Chief Legal & Compliance) | Sale | 5,000 | 119.25 | 596,250 |
| 2020-10-13 | Berger David B (EVP, Chief Legal & Compliance) | Option Ex | 5,000 | 18.86 | 94,300 |
| 2020-10-13 | Sheridan John F (PRESIDENT & CEO) | Sale | 15,000 | 121.52 | 1,822,755 |
| 2020-10-13 | Sheridan John F (PRESIDENT & CEO) | Option Ex | 15,000 | 18.86 | 282,900 |
| 2020-10-07 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Sale | 15,000 | 117.76 | 1,766,445 |
| 2020-10-07 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Option Ex | 15,000 | 51.50 | 772,500 |
| 2020-09-29 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Sale | 4,489 | 112.75 | 506,134 |
| 2020-09-29 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Option Ex | 4,489 | 51.50 | 231,183 |
| 2020-09-16 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Sale | 10,525 | 113.45 | 1,194,113 |
| 2020-09-16 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Option Ex | 10,525 | 51.50 | 542,037 |
| 2020-09-16 | Sheridan John F (PRESIDENT & CEO) | Sale | 401 | 110.37 | 44,258 |
| 2020-09-16 | Sheridan John F (PRESIDENT & CEO) | Option Ex | 401 | 18.86 | 7,562 |
| 2020-09-15 | Sheridan John F (PRESIDENT & CEO) | Sale | 9,599 | 110.00 | 1,055,918 |
| 2020-09-15 | Sheridan John F (PRESIDENT & CEO) | Option Ex | 9,599 | 18.86 | 181,037 |
| 2020-09-03 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Sale | 39,132 | 111.72 | 4,371,709 |
| 2020-09-03 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Option Ex | 39,132 | 46.62 | 1,824,333 |
| 2020-09-02 | Robertson Rebecca B | Sale | 9,500 | 114.55 | 1,088,263 |
| 2020-09-02 | Robertson Rebecca B | Option Ex | 9,500 | 34.00 | 323,000 |
| 2020-09-01 | Morrison Susan (EVP & Chief Admin. Officer) | Sale | 5,930 | 114.00 | 676,020 |
| 2020-09-01 | Morrison Susan (EVP & Chief Admin. Officer) | Option Ex | 5,930 | 18.86 | 111,839 |
| 2020-08-31 | Morrison Susan (EVP & Chief Admin. Officer) | Sale | 6,548 | 114.00 | 746,472 |
| 2020-08-31 | Morrison Susan (EVP & Chief Admin. Officer) | Option Ex | 6,548 | 18.86 | 123,495 |
| 2020-08-28 | Morrison Susan (EVP & Chief Admin. Officer) | Sale | 7,522 | 114.00 | 857,508 |
| 2020-08-28 | Morrison Susan (EVP & Chief Admin. Officer) | Option Ex | 7,522 | 18.86 | 141,864 |
| 2020-08-18 | Blickenstaff Kim D | Sale | 38,250 | 103.48 | 3,958,301 |
| 2020-08-18 | Blickenstaff Kim D | Option Ex | 47,270 | 60.50 | 2,859,835 |
| 2020-08-10 | Blickenstaff Kim D | Sale | 8,882 | 104.17 | 925,229 |
| 2020-08-10 | Blickenstaff Kim D | Option Ex | 11,568 | 51.50 | 595,752 |
| 2020-08-07 | Blickenstaff Kim D | Sale | 161,244 | 107.26 | 17,294,386 |
| 2020-08-07 | Blickenstaff Kim D | Option Ex | 508,097 | 23.76 | 12,073,909 |
| 2020-08-06 | Blickenstaff Kim D | Sale | 122,298 | 106.36 | 13,007,615 |
| 2020-08-06 | Blickenstaff Kim D | Option Ex | 64,488 | 10.03 | 646,750 |
| 2020-08-03 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Sale | 23,954 | 105.95 | 2,537,950 |
| 2020-08-03 | Hansen Brian B (EVP & CHIEF COMMERCIAL OFFICER) | Option Ex | 23,954 | 31.12 | 745,568 |
| 2020-08-03 | Sheridan John F (PRESIDENT & CEO) | Sale | 33,200 | 102.61 | 3,406,718 |
| 2020-08-03 | Sheridan John F (PRESIDENT & CEO) | Option Ex | 33,200 | 11.41 | 378,911 |
| 2020-07-31 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Sale | 10,000 | 110.03 | 1,100,320 |
| 2020-07-31 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Option Ex | 10,000 | 18.86 | 188,600 |
| 2020-07-31 | Morrison Susan (EVP & Chief Admin. Officer) | Sale | 50,000 | 108.36 | 5,417,750 |
| 2020-07-31 | Morrison Susan (EVP & Chief Admin. Officer) | Option Ex | 50,000 | 10.72 | 536,250 |
| 2020-07-31 | Twomey Christopher J | Sale | 7,500 | 110.03 | 825,240 |
| 2020-07-06 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Sale | 10,000 | 105.04 | 1,050,390 |
| 2020-07-06 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Option Ex | 10,000 | 18.86 | 188,600 |
| 2020-07-06 | Berger David B (EVP, Chief Legal & Compliance) | Sale | 2,000 | 101.88 | 203,750 |
| 2020-07-06 | Berger David B (EVP, Chief Legal & Compliance) | Option Ex | 2,000 | 2.59 | 5,180 |
| 2020-07-02 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Sale | 10,000 | 100.71 | 1,007,090 |
| 2020-07-02 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Option Ex | 10,000 | 13.93 | 139,300 |
| 2020-07-02 | Twomey Christopher J | Sale | 7,500 | 100.46 | 753,465 |
| 2020-06-30 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Sale | 10,000 | 95.04 | 950,390 |
| 2020-06-30 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Option Ex | 10,000 | 2.59 | 25,900 |
| 2020-06-30 | Blickenstaff Kim D | Sale | 50,000 | 95.73 | 4,786,750 |
| 2020-06-03 | Berger David B (EVP, Chief Legal & Compliance) | Sale | 2,000 | 81.81 | 163,624 |
| 2020-06-03 | Berger David B (EVP, Chief Legal & Compliance) | Option Ex | 2,000 | 2.59 | 5,180 |
| 2020-05-07 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Sale | 10,000 | 90.08 | 900,750 |
| 2020-05-07 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Option Ex | 10,000 | 2.59 | 25,900 |
| 2020-05-07 | Allen Dick | Sale | 3,500 | 89.00 | 311,500 |
| 2020-05-07 | Twomey Christopher J | Sale | 7,500 | 90.02 | 675,165 |
| 2020-05-04 | Berger David B (EVP, Chief Legal & Compliance) | Sale | 2,000 | 78.50 | 157,000 |
| 2020-05-04 | Berger David B (EVP, Chief Legal & Compliance) | Option Ex | 2,000 | 2.59 | 5,180 |
| 2020-04-30 | Twomey Christopher J | Sale | 4,308 | 80.00 | 344,640 |
| 2020-04-06 | Berger David B (EVP, Chief Legal & Compliance) | Sale | 2,000 | 67.59 | 135,180 |
| 2020-04-06 | Berger David B (EVP, Chief Legal & Compliance) | Option Ex | 2,000 | 2.59 | 5,180 |
| 2020-03-03 | Berger David B (EVP, Chief Legal & Compliance) | Sale | 2,000 | 77.17 | 154,330 |
| 2020-03-03 | Berger David B (EVP, Chief Legal & Compliance) | Option Ex | 2,000 | 2.59 | 5,180 |
| 2020-02-26 | Allen Dick | Sale | 2,979 | 78.82 | 234,804 |
| 2020-02-26 | Allen Dick | Option Ex | 3,184 | 73.73 | 234,756 |
| 2020-02-21 | Sheridan John F (PRESIDENT & CEO) | Sale | 30,000 | 88.46 | 2,653,860 |
| 2020-02-21 | Sheridan John F (PRESIDENT & CEO) | Option Ex | 30,000 | 2.59 | 77,700 |
| 2020-02-13 | Berger David B (EVP, Chief Legal & Compliance) | Sale | 16,000 | 82.67 | 1,322,688 |
| 2020-02-13 | Berger David B (EVP, Chief Legal & Compliance) | Option Ex | 16,000 | 2.59 | 41,440 |
| 2020-02-11 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Sale | 3,626 | 80.00 | 290,080 |
| 2020-02-11 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Option Ex | 3,626 | 2.59 | 9,391 |
| 2020-02-10 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Sale | 6,374 | 80.06 | 510,270 |
| 2020-02-10 | Vosseller Leigh (EVP & CHIEF FINANCIAL OFFICER) | Option Ex | 6,374 | 2.59 | 16,508 |
Insider trading activities including stock purchases, stock sales, and option exercises of TNDM listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Tandem Diabetes Care Inc (symbol TNDM, CIK number 1438133) see the Securities and Exchange Commission (SEC) website.