Tandem Diabetes Care
TNDM
TNDM
265 hedge funds and large institutions have $1.65B invested in Tandem Diabetes Care in 2025 Q4 according to their latest regulatory filings, with 51 funds opening new positions, 84 increasing their positions, 99 reducing their positions, and 32 closing their positions.
New
Increased
Maintained
Reduced
Closed
more call options, than puts
Call options by funds: $ | Put options by funds: $
more funds holding in top 10
Funds holding in top 10: →
more capital invested
Capital invested by funds: $ → $
more first-time investments, than exits
New positions opened: | Existing positions closed:
5% more funds holding
Funds holding: 253 → 265 (+12)
0.67% less ownership
Funds ownership: 111.09% → 110.41% (-0.67%)
15% less repeat investments, than reductions
Existing positions increased: 84 | Existing positions reduced: 99
Holders
265
Holding in Top 10
3
Calls
$67M
Puts
$9.83M
Top Buyers
| 1 | +$37M | |
| 2 | +$29.1M | |
| 3 | +$24.2M | |
| 4 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
+$22.2M |
| 5 |
FLAM
First Light Asset Management
Edina,
Minnesota
|
+$19.7M |
Top Sellers
| 1 | -$31M | |
| 2 | -$19.6M | |
| 3 | -$17.2M | |
| 4 |
ACH
ArrowMark Colorado Holdings
Denver,
Colorado
|
-$14.5M |
| 5 |
Acadian Asset Management
Boston,
Massachusetts
|
-$9.49M |
