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Tandem Diabetes Care

269 hedge funds and large institutions have $1.51B invested in Tandem Diabetes Care in 2025 Q2 according to their latest regulatory filings, with 40 funds opening new positions, 116 increasing their positions, 69 reducing their positions, and 41 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:

more capital invested

Capital invested by funds: $ → $

0% more funds holding in top 10

Funds holding in top 10: 22 (0)

2% less first-time investments, than exits

New positions opened: 40 | Existing positions closed: 41

1% less funds holding

Funds holding: 272269 (-3)

Holders
269
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$54.4M
Puts
$4.81M
Net Calls
Net Calls Change

Top Buyers

1 +$24.4M
2 +$21.9M
3 +$13.8M
4
Two Sigma Investments
Two Sigma Investments
New York
+$11M
5
Walleye Capital
Walleye Capital
New York
+$10.6M
Name Holding Trade Value Shares
Change
Change in
Stake
VRS
126
Virginia Retirement Systems
Virginia
$688K
State of Tennessee, Department of Treasury
127
State of Tennessee, Department of Treasury
Tennessee
$675K
Mirae Asset Global Investments
128
Mirae Asset Global Investments
South Korea
$672K
Stifel Financial
129
Stifel Financial
Missouri
$662K
US Bancorp
130
US Bancorp
Minnesota
$659K
QT
131
Quantbot Technologies
New York
$623K
Manulife (Manufacturers Life Insurance)
132
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$619K
Teacher Retirement System of Texas
133
Teacher Retirement System of Texas
Texas
$589K
FRM
134
Fox Run Management
Connecticut
$587K
Assenagon Asset Management
135
Assenagon Asset Management
Luxembourg
$585K
LSERS
136
Louisiana State Employees Retirement System
Louisiana
$580K
CCIA
137
Campbell & Co Investment Adviser
Maryland
$561K
Janus Henderson Group
138
Janus Henderson Group
United Kingdom
$556K
HSBC Holdings
139
HSBC Holdings
United Kingdom
$554K
Comerica Bank
140
Comerica Bank
Texas
$551K
BCM
141
Bayesian Capital Management
New York
$529K
SG Americas Securities
142
SG Americas Securities
New York
$517K
Franklin Resources
143
Franklin Resources
California
$502K
DTL
144
Dynamic Technology Lab
Singapore
$488K
YCM
145
Yousif Capital Management
Michigan
$469K
Bessemer Group
146
Bessemer Group
New Jersey
$467K
AAM
147
Advisors Asset Management
Colorado
$466K
Ensign Peak Advisors
148
Ensign Peak Advisors
Utah
$466K
STA
149
Summit Trail Advisors
New York
$464K
CAPTRUST Financial Advisors
150
CAPTRUST Financial Advisors
North Carolina
$462K