마지막으로 Diabetes Care, Inc.
MX ˙ BMV ˙ US8753722037
SecurityMX:TNDM / Tandem Diabetes Care, Inc.
InstitutionAdvisory Services Network, LLC
Latest Disclosed Ownership8,274 shares
Latest Disclosed Value $ 158,613
Advisory Services Network, LLC ownership in TNDM / Tandem Diabetes Care, Inc.

On May 15, 2026 - Advisory Services Network, LLC filed a 13F-HR form disclosing ownership of 8,274 shares of Tandem Diabetes Care, Inc. (MX:TNDM) valued at $158,613 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of Tandem Diabetes Care, Inc..

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 Stock 875372203 8,274 8,274 159 0.0015
2026-02-17 2025-12-31 13F TANDEM DIABETES CARE Stock 875372203 0 -8,274 -100.00 0 -100.00
2025-11-18 2025-09-30 13F TANDEM DIABETES CARE Stock 875372203 8,274 -3,187 -27.81 100 -43.82 0.0015
2025-08-19 2025-06-30 13F TANDEM DIABETES CARE Stock 875372203 11,461 11,461 179 0.0029
2025-05-15 2025-03-31 13F TANDEM DIABETES CARE Stock 875372203 0 -6,054 -100.00 0 -100.00
2025-02-13 2024-12-31 13F TANDEM DIABETES CARE Stock 875372203 6,054 -896 -12.89 218 -22.14 0.0041
2024-11-14 2024-09-30 13F TANDEM DIABETES CARE Stock 875372203 6,950 0 0.00 280 0.00 0.0058
2024-08-13 2024-06-30 13F TANDEM DIABETES CARE Stock 875372203 6,950 -10 -0.14 280 13.82 0.0058
2024-05-06 2024-03-31 13F TANDEM DIABETES CARE Stock 875372203 6,960 32 0.46 246 20.59 0.0055
2024-02-09 2023-12-31 13F TANDEM DIABETES CARE Stock 875372203 6,928 6,928 205 0.0050
2021-11-05 2021-09-30 13F TANDEM DIABETES CARE Stock 875372203 0 -42 -100.00 0 -100.00
2021-08-12 2021-06-30 13F TANDEM DIABETES CARE Stock 875372203 42 42 4 0.0001
2021-05-24 2021-03-31 13F TANDEM DIABETES CARE Stock 875372203 0 -42 -100.00 0 -100.00
2021-02-09 2020-12-31 13F TANDEM DIABETES CARE Stock 875372203 42 42 4 0.0002
2020-08-10 2020-06-30 13F TANDEM DIABETES CARE Stock 875372203 0 -85 -100.00 0 -100.00
2020-05-15 2020-03-31 13F TANDEM DIABETES CARE Stock 875372203 85 85 5 0.0003
2020-02-04 2019-12-31 13F TANDEM DIABETES CARE Stock 875372203 0 -3,095 -100.00 0 -100.00
2019-11-04 2019-09-30 13F TANDEM DIABETES CARE Stock 875372203 3,095 0 0.00 200 0.00 0.0123
2019-08-01 2019-06-30 13F TANDEM DIABETES CARE Stock 875372203 3,095 3,095 0.00 200 0.00 0.0123
2019-05-20 2019-03-31 13F TANDEM DIABETES CARE Stock 875372203 0 -900 -100.00 0 -100.00
2019-02-15 2018-12-31 13F TANDEM DIABETES CARE Stock 875372203 900 0 0.00 34 -12.82 0.0030
2018-11-02 2018-09-30 13F TANDEM DIABETES CARE Stock 875372203 900 900 0.00 39 14.71 0.0028
2018-04-23 2018-03-31 13F TANDEM DIABETES CARE Stock 875372203 0 -460 -100.00 0 -100.00
2018-02-08 2017-12-31 13F TANDEM DIABETES CARE Stock 875372203 460 460 1 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.