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Tandem Diabetes Care
TNDM
TNDM
275 hedge funds and large institutions have $1.4B invested in Tandem Diabetes Care in 2025 Q1 according to their latest regulatory filings, with 39 funds opening new positions, 107 increasing their positions, 86 reducing their positions, and 78 closing their positions.
New
Increased
Maintained
Reduced
Closed
more call options, than puts
Call options by funds: $ | Put options by funds: $
more repeat investments, than reductions
Existing positions increased: | Existing positions reduced:
more ownership
Funds ownership: →
less funds holding
Funds holding: →
46% less capital invested
Capital invested by funds: $2.6B → $1.4B (-$1.2B)
50% less first-time investments, than exits
New positions opened: 39 | Existing positions closed: 78
60% less funds holding in top 10
Funds holding in top 10: 5 → 2 (-3)
Holders
275
Holding in Top 10
2
Calls
$61.6M
Puts
$5.47M
Top Buyers
| 1 | +$131M | |
| 2 | +$30.3M | |
| 3 | +$22.5M | |
| 4 |
GKIM
GW&K Investment Management
Boston,
Massachusetts
|
+$21.7M |
| 5 |
PIM
Paradice Investment Management
Denver,
Colorado
|
+$20.3M |
Top Sellers
| 1 | -$33.6M | |
| 2 | -$28.2M | |
| 3 | -$27.8M | |
| 4 |
Capital International Investors
Los Angeles,
California
|
-$25.9M |
| 5 |
Marshall Wace
London,
United Kingdom
|
-$25.8M |