最後糖尿病護理公司
MX ˙ BMV ˙ US8753722037
SecurityMX:TNDM / Tandem Diabetes Care, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,357,542 shares
Latest Disclosed Value $ 26,024,095
Morgan Stanley reports 34.75% decrease in ownership of TNDM / Tandem Diabetes Care, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,357,542 shares of Tandem Diabetes Care, Inc. (MX:TNDM) valued at $26,024,095 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 2,080,497 shares of Tandem Diabetes Care, Inc.. This represents a change in shares of -34.75% 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 1,357,542 -722,955 -34.75 26,024 -43.09 0.0016
2026-05-27 2025-12-31 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 2,080,497 1,342,950 182.08 45,729 410.77 0.0027
2026-02-13 2025-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 2,080,497 1,342,950 45,729 0.0027
2026-05-27 2025-09-30 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 737,547 -527,987 -41.72 8,954 -62.05 0.0005
2025-11-14 2025-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 737,547 -527,987 8,954 0.0005
2025-08-15 2025-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 1,265,534 334,565 35.94 23,590 32.25 0.0015
2025-05-15 2025-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 930,969 83,860 9.90 17,837 -41.54 0.0013
2025-05-15 2024-12-31 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 847,109 -145,602 -14.67 30,513 -27.52 0.0021
2025-02-14 2024-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 847,109 -145,602 30,513 0.0021
2025-05-14 2024-09-30 13F/A-2 TANDEM DIABETES CARE COM NEW 875372203 992,711 -26,700 -2.62 42,101 2.50 0.0031
2025-02-14 2024-09-30 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 992,711 -26,700 42,101 0.0031
2024-11-14 2024-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 992,711 -26,700 42,101 0.0031
2025-05-14 2024-06-30 13F/A-2 TANDEM DIABETES CARE COM NEW 875372203 1,019,411 -378,734 -27.09 41,072 -17.04 0.0032
2024-10-17 2024-06-30 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 1,019,411 -378,734 41,072 0.0032
2024-08-14 2024-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 1,019,411 -378,734 41,072 0.0032
2024-10-17 2024-03-31 13F/A-2 TANDEM DIABETES CARE COM NEW 875372203 1,398,145 525,980 60.31 49,508 91.91 0.0040
2024-08-16 2024-03-31 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 1,398,145 525,980 49,508 0.0040
2024-05-15 2024-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 1,398,145 525,980 49,508 0.0040
2024-08-16 2023-12-31 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 872,165 97,522 12.59 25,799 60.35 0.0023
2024-02-13 2023-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 872,165 97,522 25,799 0.0023
2023-11-15 2023-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 774,643 371,356 92.08 16,089 62.58 0.0016
2023-08-14 2023-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 403,287 -528,485 -56.72 9,897 -73.85 0.0010
2023-05-15 2023-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 931,772 456,222 95.94 37,839 77.02 0.0041
2023-02-14 2022-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 475,550 150,957 46.51 21,376 37.63 0.0024
2022-11-14 2022-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 324,593 -206,870 -38.92 15,531 -50.63 0.0021
2022-10-27 2022-06-30 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 531,463 358,364 207.03 31,456 56.27 0.0041
2022-08-15 2022-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 531,463 358,364 31,456 0.0008
2022-10-27 2022-03-31 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 173,099 -303,197 -63.66 20,129 -71.92 0.0027
2022-05-13 2022-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 173,099 -303,197 20,129 0.0027
2022-02-14 2021-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 476,296 166,438 53.71 71,693 93.81 0.0089
2021-11-15 2021-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 309,858 27,031 9.56 36,991 34.29 0.0050
2021-08-23 2021-06-30 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 282,827 -86,759 -23.47 27,546 -15.55 0.0036
2021-08-16 2021-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 282,827 -86,759 27,546 0.0008
2021-05-17 2021-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 369,586 -111,371 -23.16 32,617 -29.12 0.0048
2021-02-16 2020-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 480,957 388,910 422.51 46,019 340.54 0.0071
2020-11-13 2020-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 92,047 -212,493 -69.78 10,446 -65.33 0.0020
2020-08-14 2020-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 304,540 212,496 230.86 30,126 408.71 0.0067
2020-05-26 2020-03-31 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 92,044 -61,999 -40.25 5,922 -35.50 0.0016
2020-05-15 2020-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 92,044 -61,999 5,922 454.9331
2020-02-14 2019-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 154,043 53,492 53.20 9,182 54.84 0.0021
2019-11-14 2019-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 100,551 -63,672 -38.77 5,930 -44.04 0.0016
2019-08-14 2019-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 164,223 62,376 61.24 10,596 63.82 0.0028
2019-05-15 2019-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 101,847 -82,489 -44.75 6,468 -7.60 0.0018
2019-02-14 2018-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 184,336 -100,856 -35.36 7,000 -42.70 0.0021
2019-04-23 2018-09-30 13F/A-2 TANDEM DIABETES CARE COM NEW 875372203 285,192 182,952 178.94 12,217 442.74 0.0031
2018-11-20 2018-09-30 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 285,192 0 12,217 0.0031
2018-11-14 2018-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 285,192 182,952 12,217
2019-04-23 2018-06-30 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 102,240 84,552 478.02 2,251 2,457.95 0.0006
2018-08-14 2018-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 102,240 84,552 2,251
2019-04-23 2018-03-31 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 17,688 17,678 176,780.00 88 -96.09 0.0000
2018-05-14 2018-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 17,688 17,678 88
2019-04-23 2017-12-31 13F/A-1 TANDEM DIABETES CARE COM NEW 875372203 10 -90 -90.00 0 -100.00 0.0000
2018-02-14 2017-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 10 -90 0
2017-11-14 2017-09-30 13F TANDEM DIABETES CARE COM 875372104 100 -47,778 -99.79 0 -100.00
2017-08-11 2017-06-30 13F TANDEM DIABETES CARE COM 875372104 47,878 23,206 94.06 38 31.03 0.0000
2017-05-22 2017-03-31 13F/A-1 TANDEM DIABETES CARE COM 875372104 24,672 -29,864 -54.76 29 -75.21 0.0000
2017-05-12 2017-03-31 13F TANDEM DIABETES CARE COM 875372104 24,672 29
2017-02-22 2016-12-31 13F/A-1 TANDEM DIABETES CARE COM 875372104 54,536 50,434 1,229.50 117 277.42 0.0000
2017-02-13 2016-12-31 13F TANDEM DIABETES CARE COM 875372104 54,536 117
2016-11-10 2016-09-30 13F TANDEM DIABETES CARE COM 875372104 4,102 3,383 470.51 31 520.00 0.0000
2016-08-12 2016-06-30 13F TANDEM DIABETES CARE COM 875372104 719 -618 -46.22 5 -54.55 0.0000
2016-05-12 2016-03-31 13F TANDEM DIABETES CARE COM 875372104 1,337 -14,774 -91.70 11 -94.21 0.0000
2016-02-09 2015-12-31 13F TANDEM DIABETES CARE COM 875372104 16,111 9,227 134.04 190 216.67 0.0001
2016-02-08 2015-09-30 13F/A-1 TANDEM DIABETES CARE COM 875372104 6,884 -20,739 -75.08 60 -79.93 0.0000
2015-11-09 2015-09-30 13F TANDEM DIABETES CARE COM 875372104 6,884 60
2015-08-12 2015-06-30 13F TANDEM DIABETES CARE COM 875372104 27,623 22,604 450.37 299 374.60 0.0001
2015-05-14 2015-03-31 13F TANDEM DIABETES CARE COM 875372104 5,019 -1,376 -21.52 63 -22.22 0.0000
2015-02-13 2014-12-31 13F TANDEM DIABETES CARE COM 875372104 6,395 713 12.55 81 6.58 0.0000
2014-12-16 2014-09-30 13F/A-1 TANDEM DIABETES CARE COM 875372104 5,682 -4,653 -45.02 76 -66.67 0.0000
2014-11-14 2014-09-30 13F TANDEM DIABETES CARE COM 875372104 5,682 76
2014-05-13 2014-03-31 13F TANDEM DIABETES CARE COM 875372104 10,335 -32,309 -75.76 228 -79.25 0.0001
2014-02-13 2013-12-31 13F TANDEM DIABETES CARE COM 875372104 42,644 42,644 1,099 0.0005
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.