마지막으로 Diabetes Care, Inc.
MX ˙ BMV ˙ US8753722037
SecurityMX:TNDM / Tandem Diabetes Care, Inc.
InstitutionFifth Third Bancorp
Latest Disclosed Ownership22,605 shares
Latest Disclosed Value $ 433,341
Fifth Third Bancorp reports 2,075.65% increase in ownership of TNDM / Tandem Diabetes Care, Inc.

On May 1, 2026 - Fifth Third Bancorp filed a 13F-HR form disclosing ownership of 22,605 shares of Tandem Diabetes Care, Inc. (MX:TNDM) valued at $433,341 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 1,039 shares of Tandem Diabetes Care, Inc.. This represents a change in shares of 2,075.65% 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)
2026-05-01 2026-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 22,605 21,566 2,075.65 433 1,868.18 0.0008
2026-02-02 2025-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 1,039 145 16.22 23 120.00 0.0001
2025-11-07 2025-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 894 491 121.84 11 42.86 0.0000
2025-07-15 2025-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 403 -28 -6.50 8 -12.50 0.0000
2025-04-15 2025-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 431 4 0.94 8 -46.67 0.0000
2025-01-21 2024-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 427 -10 -2.29 15 -16.67 0.0001
2024-10-17 2024-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 437 8 1.86 19 5.88 0.0001
2024-07-22 2024-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 429 29 7.25 17 21.43 0.0001
2024-04-23 2024-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 400 74 22.70 14 55.56 0.0001
2024-01-19 2023-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 326 92 39.32 10 125.00 0.0000
2023-10-31 2023-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 234 52 28.57 5 0.00 0.0000
2023-07-26 2023-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 182 -351 -65.85 4 -80.95 0.0000
2023-04-24 2023-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 533 71 15.37 22 5.00 0.0001
2023-01-25 2022-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 462 70 17.86 21 5.26 0.0001
2022-10-25 2022-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 392 -48 -10.91 19 -26.92 0.0001
2022-08-04 2022-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 440 344 358.33 26 136.36 0.0001
2022-04-19 2022-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 96 -4,096 -97.71 11 -98.26 0.0000
2022-02-01 2021-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 4,192 4,136 7,385.71 631 8,914.29 0.0025
2021-10-15 2021-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 56 56 7 0.0000
2020-08-05 2020-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 0 -3,280 -100.00 0 -100.00
2020-05-05 2020-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 3,280 -500 -13.23 211 -6.22 0.0015
2020-02-14 2019-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 3,780 3,280 656.00 225 675.86 0.0013
2019-11-14 2019-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 500 -1,500 -75.00 29 -77.52 0.0002
2019-08-07 2019-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 2,000 -1,520 -43.18 129 -42.41 0.0008
2019-05-14 2019-03-31 13F TANDEM DIABETES CARE COM NEW 875372203 3,520 3,020 604.00 224 1,078.95 0.0014
2019-02-14 2018-12-31 13F TANDEM DIABETES CARE COM NEW 875372203 500 0 0.00 19 -9.52 0.0001
2018-11-14 2018-09-30 13F TANDEM DIABETES CARE COM NEW 875372203 500 0 0.00 21 90.91 0.0001
2018-08-14 2018-06-30 13F TANDEM DIABETES CARE COM NEW 875372203 500 500 11 0.0001
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.