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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
BIA
251
Bell Investment Advisors
California
$672
TPCW
252
TD Private Client Wealth
New York
$671
S
253
Sachetta
Massachusetts
$653
EB
254
Eastern Bank
Massachusetts
$596
LFG
255
Larson Financial Group
Missouri
$578
Northwestern Mutual Wealth Management
256
Northwestern Mutual Wealth Management
Wisconsin
$559
AF
257
Allworth Financial
California
$485
HNB
258
Huntington National Bank
Ohio
$429
BFS
259
Bare Financial Services
Pennsylvania
$429
CTC
260
Central Trust Company
Missouri
$373
SS
261
SBI Securities
Japan
$336
PFBT
262
Parkside Financial Bank & Trust
Missouri
$280
JWA
263
JFS Wealth Advisors
Pennsylvania
$280
CT
264
Clearstead Trust
Maine
$243
MCM
265
MV Capital Management
Maryland
$224
EWM
266
Evermay Wealth Management
Virginia
$168
CIBC Private Wealth Group
267
CIBC Private Wealth Group
Georgia
$112
AWM
268
Abound Wealth Management
Tennessee
$112
WCM
269
WealthTrak Capital Management
Virginia
$94
WSFS
270
Wilmington Savings Fund Society
Delaware
$93
PWAM
271
Park West Asset Management
California
KCM
272
Kingdon Capital Management
New York
FLAM
273
First Light Asset Management
Minnesota
IGAM
274
iA Global Asset Management
Quebec, Canada
PCH
275
Polar Capital Holdings
United Kingdom