Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
Search
Sign in
Sign up
FRM
Fox Run Management’s
Tandem Diabetes Care
TNDM
Stock Holding History
Fox Run Management’s Portfolio
TNDM Stock Details
TNDM Fund Activity
Bought
Maintained
Sold
Quarter
Market Value
Status
Shares
Change in
Stake
Trade Value
Portfolio Weight
Portfolio Position
2026
Q1
–
Sell
-11,398
Closed
-$251K
–
1238
2025
Q4
$251K
Buy
+11,398
New
+$206K
0.04%
749
2025
Q3
–
Sell
-31,516
Closed
-$587K
–
1241
2025
Q2
$587K
Buy
+31,516
New
+$624K
0.1%
398
2023
Q3
–
Sell
-10,963
Closed
-$269K
–
999
2023
Q2
$269K
Buy
+10,963
New
+$353K
0.08%
487
2022
Q3
–
Sell
-4,151
Closed
-$246K
–
825
2022
Q2
$246K
Buy
+4,151
New
+$341K
0.12%
365
2021
Q3
–
Sell
-3,901
Closed
-$380K
–
619
2021
Q2
$380K
Buy
+3,901
New
+$348K
0.35%
101
2019
Q2
–
Sell
-9,377
Closed
-$595K
–
624
2019
Q1
$595K
Buy
+9,377
New
+$493K
0.34%
68
2018
Q4
–
Sell
-4,730
Closed
-$203K
–
723
2018
Q3
$203K
Buy
+4,730
New
+$165K
0.09%
475
Other funds holding TNDM
BlackRock
New York
$5.7T AUM
30.48%
1-Year Est. Return
SC
Sessa Capital
New York
$5.26B AUM
47.23%
1-Year Est. Return
VPM
Vanguard Portfolio Management
Malvern, Pennsylvania
$1.91T AUM
ACH
ArrowMark Colorado Holdings
Denver, Colorado
$3.76B AUM
21.77%
1-Year Est. Return
VCM
Vanguard Capital Management
Malvern, Pennsylvania
$4.04T AUM
GKIM
GW&K Investment Management
Boston, Massachusetts
$11.3B AUM
31.98%
1-Year Est. Return
State Street
Boston, Massachusetts
$2.9T AUM
29.55%
1-Year Est. Return
DCM
Driehaus Capital Management
Chicago, Illinois
$13.6B AUM
173.98%
1-Year Est. Return
Goldman Sachs
New York
$761B AUM
31.28%
1-Year Est. Return
Citadel Advisors
Miami, Florida
$141B AUM
30.34%
1-Year Est. Return
Sign up
Sign in
Fund Insights
Common Fund Bets
See what stocks and ETFs funds are collectively bullish/bearish on
Largest Fund Trades
Explore the largest stock and ETF buys and sells made by funds
High Conviction Trades
Discover high conviction trades that caused a significant change in a fund's stake in a stock
Fund Manager Portfolios
Gain insights from the world’s largest funds and super investors
WSR Indexes
Fund Manager Index
Stock index based on fund manager consensus updated each quarter
Theme
Close