最後糖尿病護理公司
MX ˙ BMV ˙ US8753722037
SecurityMX:TNDM / Tandem Diabetes Care, Inc.
InstitutionState Street Corp
Latest Disclosed Ownership2,662,260 shares
Latest Disclosed Value $ 51,035,524
State Street Corp reports 0.78% increase in ownership of TNDM / Tandem Diabetes Care, Inc.

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 2,662,260 shares of Tandem Diabetes Care, Inc. (MX:TNDM) valued at $51,035,524 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,641,724 shares of Tandem Diabetes Care, Inc.. This represents a change in shares of 0.78% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 2,662,260 20,536 0.78 51,036 -12.11 0.0018
2026-02-13 2025-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 2,641,724 -26,464 -0.99 58,065 79.26 0.0019
2025-11-14 2025-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 2,668,188 22,299 0.84 32,392 -34.32 0.0011
2025-08-14 2025-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 2,645,889 -41,850 -1.56 49,319 -4.23 0.0018
2025-05-15 2025-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 2,687,739 -77,398 -2.80 51,497 -48.30 0.0021
2025-02-14 2024-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 2,765,137 109,401 4.12 99,600 -11.57 0.0039
2024-11-14 2024-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 2,655,736 83,172 3.23 112,630 8.66 0.0046
2024-08-14 2024-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 2,572,564 331,586 14.80 103,649 30.62 0.0045
2024-05-15 2024-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 2,240,978 -33,588 -1.48 79,353 17.94 0.0035
2024-02-14 2023-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 2,274,566 104,722 4.83 67,282 49.29 0.0033
2023-11-14 2023-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 2,169,844 -87,584 -3.88 45,068 -18.65 0.0025
2023-08-14 2023-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 2,257,428 190,499 9.22 55,397 -34.00 0.0029
2023-05-15 2023-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 2,066,929 239,659 13.12 83,938 2.19 0.0047
2023-05-15 2022-12-31 13F/A-99 TANDEM DIABETES CARE COM NEW 875372203 1,827,270 44,270 2.48 82,136 -3.73 0.0048
2023-05-15 2022-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 1,827,270 44,270 82,136 0.0048
2022-11-15 2022-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 1,783,000 59,836 3.47 85,317 -16.35 0.0054
2022-08-15 2022-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 1,723,164 15,134 0.89 101,994 -48.65 0.0061
2022-05-16 2022-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 1,708,030 59,778 3.63 198,627 -19.94 0.0098
2022-02-14 2021-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 1,648,252 35,825 2.22 248,095 28.89 0.0118
2021-11-15 2021-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 1,612,427 422,287 35.48 192,492 66.06 0.0102
2021-08-16 2021-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 1,190,140 346,024 40.99 115,920 55.61 0.0061
2021-07-09 2021-03-31 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 844,116 8,009 0.96 74,493 -6.88 0.0043
2021-05-17 2021-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 844,116 8,009 74,493 0.0043
2021-02-16 2020-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 836,107 48,161 6.11 79,999 -10.55 0.0049
2020-11-10 2020-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 787,946 -22,128 -2.73 89,432 11.60 0.0061
2020-08-14 2020-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 810,074 -501,578 -38.24 80,133 -5.06 0.0058
2020-06-19 2020-03-31 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 1,311,652 -22,107 -1.66 84,405 6.16 0.0074
2020-05-11 2020-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 1,311,652 -22,107 84,405 7,412.4585
2020-02-06 2019-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 1,333,759 18,267 1.39 79,505 2.47 0.0054
2019-11-14 2019-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 1,315,492 -12,464 -0.94 77,588 -9.44 0.0058
2019-08-14 2019-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 1,327,956 91,085 7.36 85,680 9.09 0.0064
2019-05-15 2019-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 1,236,871 -38,308 -3.00 78,541 62.21 0.0061
2019-02-12 2018-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 1,275,179 125,142 10.88 48,419 -1.73 0.0044
2018-11-09 2018-09-30 13F TANDEM DIABETES CARE Common equity shares 875372203 1,150,037 -63,876 -5.26 49,269 84.33 0.0038
2018-08-14 2018-06-30 13F TANDEM DIABETES CARE Common equity shares 875372203 1,213,913 1,179,964 3,475.70 26,729 15,810.12 0.0022
2018-05-15 2018-03-31 13F TANDEM DIABETES CARE Common equity shares 875372203 33,949 33,949 168 0.0000
2017-08-14 2017-06-30 13F TANDEM DIABETES CARE Common equity shares 875372104 0 -264,087 -100.00 0 -100.00
2017-05-15 2017-03-31 13F TANDEM DIABETES CARE Common equity shares 875372104 264,087 31,940 13.76 314 -37.07 0.0000
2017-02-09 2016-12-31 13F TANDEM DIABETES CARE Common equity shares 875372104 232,147 5,645 2.49 499 -71.26 0.0000
2017-01-13 2016-09-30 13F/A-1 TANDEM DIABETES CARE Common equity shares 875372104 226,502 3,722 1.67 1,736 3.27 0.0002
2016-11-14 2016-09-30 13F TANDEM DIABETES CARE Common equity shares 875372104 226,502 1,736
2016-08-12 2016-06-30 13F TANDEM DIABETES CARE Common equity shares 875372104 222,780 28,609 14.73 1,681 -0.47 0.0002
2016-05-20 2016-03-31 13F/A-1 TANDEM DIABETES CARE Common equity shares 875372104 194,171 14,142 7.86 1,689 -20.59 0.0002
2016-05-12 2016-03-31 13F TANDEM DIABETES CARE Common equity shares 875372104 194,171 1,689
2016-02-16 2015-12-31 13F TANDEM DIABETES CARE Common equity shares 875372104 180,029 8,916 5.21 2,127 40.86 0.0002
2015-11-16 2015-09-30 13F TANDEM DIABETES CARE Common equity shares 875372104 171,113 11,500 7.20 1,510 -12.62 0.0002
2015-08-13 2015-06-30 13F TANDEM DIABETES CARE Common equity shares 875372104 159,613 22,831 16.69 1,728 0.00 0.0002
2015-05-15 2015-03-31 13F TANDEM DIABETES CARE Common equity shares 875372104 136,782 214 0.16 1,728 -0.35 0.0002
2015-02-11 2014-12-31 13F TANDEM DIABETES CARE Common equity shares 875372104 136,568 -7,982 -5.52 1,734 -10.48 0.0002
2014-11-12 2014-09-30 13F/A-1 TANDEM DIABETES CARE Common equity shares 875372104 144,550 8,562 6.30 1,937 -12.51 0.0002
2014-11-10 2014-09-30 13F TANDEM DIABETES CARE Common equity shares 875372104 144,550 1,937
2014-08-12 2014-06-30 13F TANDEM DIABETES CARE Common equity shares 875372104 135,988 -996 -0.73 2,214 -26.81 0.0002
2014-05-15 2014-03-31 13F/A-1 TANDEM DIABETES CARE Common equity shares 875372104 136,984 -635 -0.46 3,025 -14.69 0.0003
2014-02-06 2013-12-31 13F/A-1 TANDEM DIABETES CARE Common equity shares 875372104 137,619 137,619 3,546 0.0004
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.