Which hedge funds own TNDM? TANDEM DIABETES CARE INC, Q2 2026 13F holders
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8 of the hedge funds tracked by WhaleCreep disclosed a position in TNDM (TANDEM DIABETES CARE INC) in their Q2 2026 13F filings, worth $95.4m in total. The largest holder by portfolio weight is Woodline Partners at 0.1% of its book. 1 manager opened a new position this quarter: Woodline Partners. 5 exited: Ancora Advisors, Baillie Gifford, Marshall Wace.
8tracked managers holding
1opened this quarter
5exited this quarter
Which hedge funds hold TNDM? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Woodline Partners | Q2 2026 | 0.1% | $19.7m | 1,307,439 | – | new |
| Tudor Investment | Q2 2026 | 0.0% | $5.5m | 362,708 | 359% | added |
| Citadel Advisors | Q2 2026 | 0.0% | $26.2m | 1,735,879 | -21% | reduced |
| Point72 Asset Management LP | Q2 2026 | 0.0% | $9.2m | 610,903 | 45% | added |
| Millennium Management | Q2 2026 | 0.0% | $19.8m | 1,311,739 | 72% | added |
| Holocene Advisors | Q2 2026 | 0.0% | $4.0m | 267,860 | -44% | reduced |
| Brevan Howard Capital Management | Q2 2026 | 0.0% | $619.0k | 41,021 | 7% | added |
| D. E. Shaw & Co | Q2 2026 | 0.0% | $10.3m | 681,808 | -13% | reduced |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Ancora Advisors | 0.0% | $23.6k |
| Baillie Gifford | 2.1% | $18.9m |
| Marshall Wace | 0.7% | $27.7m |
| Point72 Asset Management LP | 0.2% | $7.6m |
| Renaissance Technologies LLC | 0.0% | $1.1m |
How has hedge fund ownership of TNDM changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 8 | $95.4m |
| Q1 2026 | 11 | $146.4m |
| Q4 2025 | 5 | $32.8m |
| Q3 2025 | 3 | $19.0m |
| Q2 2025 | 4 | $20.9m |
| Q1 2025 | 4 | $20.2m |
| Q4 2024 | 6 | $47.0m |
| Q3 2024 | 5 | $27.6m |
| Q2 2024 | 4 | $20.7m |
| Q1 2024 | 6 | $45.4m |
| Q4 2023 | 6 | $209.2m |
| Q3 2023 | 5 | $120.2m |
| Q2 2023 | 5 | $84.8m |
| Q1 2023 | 6 | $129.9m |
| Q4 2022 | 6 | $158.3m |
| Q3 2022 | 8 | $115.9m |
Counts every tracked manager that disclosed TNDM in that quarter's filing, including managers that have since stopped filing.