Tandem Diabetes Care shares owned by Brian McDonald
Quarter-by-quarter ownership of Tandem Diabetes Care (TNDM) shares owned by Brian McDonald
from 13F filings
Historical chart of Brian McDonald investment in Tandem Diabetes Care
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Quarterly reported holdings in Tandem Diabetes Care by Brian McDonald
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2025-09-30 | $310k | 26k | 12.14 |
| 2025-06-30 | $550k | 30k | 18.62 |
| 2025-03-31 | $569k | 30k | 19.16 |
| 2024-12-31 | $1.0M | 28k | 36.02 |
| 2024-09-30 | $1.2M | 28k | 42.41 |
| 2024-06-30 | $1.1M | 28k | 40.29 |
| 2024-03-31 | $1.1M | 31k | 35.41 |
| 2023-09-30 | $620k | 30k | 20.77 |
| 2022-12-31 | $1.2M | 28k | 42.91 |
| 2022-09-30 | $1.6M | 29k | 54.86 |
| 2022-06-30 | $1.7M | 29k | 58.07 |
| 2022-03-31 | $3.4M | 29k | 116.57 |
| 2021-12-31 | $3.4M | 29k | 117.08 |
| 2021-09-30 | $3.6M | 29k | 127.18 |
| 2021-03-31 | $845k | 8.9k | 94.91 |
| 2020-12-31 | $882k | 8.9k | 98.66 |
| 2020-09-30 | $1.1M | 9.4k | 115.19 |
| 2020-06-30 | $1.4M | 14k | 103.01 |
| 2020-03-31 | $1.1M | 14k | 74.33 |
| 2019-12-31 | $1.1M | 15k | 74.06 |
| 2019-09-30 | $982k | 16k | 63.10 |
| 2019-06-30 | $986k | 16k | 62.81 |
| 2019-03-31 | $1.1M | 17k | 64.57 |
| 2018-09-30 | $209k | 5.7k | 36.44 |