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Tandem Diabetes Care
TNDM

Overview Fund Activity

317 hedge funds and large institutions have $2.97B invested in Tandem Diabetes Care in 2024 Q2 according to their latest regulatory filings, with 63 funds opening new positions, 124 increasing their positions, 92 reducing their positions, and 34 closing their positions.

Holders
317
Holders Change
+26
Holders Change %
+8.93%
% of All Funds
4.61%
Holding in Top 10
2
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-50%
% of All Funds
0.03%
New
63
Increased
124
Reduced
92
Closed
34
Calls
$135M
Puts
$15.3M
Net Calls
+$120M
Net Calls Change
+$7.9M

Top Buyers

1
BlackRock
1
BlackRock
New York
$448M
2
Citadel Advisors
2
Citadel Advisors
Florida
$72.9M
3
Ameriprise
3
Ameriprise
Minnesota
$59.6M
4
FAM
4
Fred Alger Management
New York
$87.6M
5
Geode Capital Management
5
Geode Capital Management
Massachusetts
$60.8M

Top Sellers

1
Marshall Wace
1
Marshall Wace
United Kingdom
$21.1M
2
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$58.4M
3
PWAM
3
Park West Asset Management
California
$27M
4
Jennison Associates
4
Jennison Associates
New York
$79.4M
5
BG
5
Bellevue Group
Switzerland
$62.2M
Name Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$448M 11,122,903 +1,890,422 +20%
Vanguard Group
2
Vanguard Group
Pennsylvania
$297M 7,378,002 +325,432 +5%
Capital World Investors
3
Capital World Investors
California
$148M 3,665,300 – –
State Street
4
State Street
Massachusetts
$104M 2,572,564 +331,586 +15%
ACH
5
ArrowMark Colorado Holdings
Colorado
$101M 2,504,851 -429,328 -15%
FAM
6
Fred Alger Management
New York
$87.6M 2,174,107 +677,036 +45%
Jennison Associates
7
Jennison Associates
New York
$79.4M 1,969,626 -586,498 -23%
Citadel Advisors
8
Citadel Advisors
Florida
$72.9M 1,808,741 +1,241,673 +219%
CIP
9
Champlain Investment Partners
Vermont
$65.7M 1,629,527 +115,970 +8%
BG
10
Bellevue Group
Switzerland
$62.2M 1,543,267 -488,621 -24%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$60.8M 1,507,629 +431,532 +40%
Ameriprise
12
Ameriprise
Minnesota
$59.6M 1,480,774 +688,746 +87%
Janus Henderson Group
13
Janus Henderson Group
United Kingdom
$58.4M 1,450,175 -750,622 -34%
GKIM
14
GW&K Investment Management
Massachusetts
$54.1M 1,343,111 +37,202 +3%
Jacobs Levy Equity Management
15
Jacobs Levy Equity Management
New Jersey
$50.1M 1,244,140 +24,946 +2%
SIMG
16
Stephens Investment Management Group
Texas
$45.8M 1,136,219 +173,660 +18%
Two Sigma Investments
17
Two Sigma Investments
New York
$45.7M 1,135,180 +113,187 +11%
Two Sigma Advisers
18
Two Sigma Advisers
New York
$45.6M 1,131,583 +54,700 +5%
Millennium Management
19
Millennium Management
New York
$42.5M 1,053,953 +28,999 +3%
GGHC
20
Gilder Gagnon Howe & Co
New York
$41.4M 1,028,633 +131,245 +15%
Morgan Stanley
21
Morgan Stanley
New York
$41.1M 1,019,411 -378,734 -27%
DCM
22
Driehaus Capital Management
Illinois
$38.5M 955,244 -362,193 -27%
BCM
23
Brown Capital Management
Maryland
$36.8M 914,455 -40,112 -4%
NCGI
24
Next Century Growth Investors
Minnesota
$36.8M 914,370 +61,491 +7%
Fidelity Investments
25
Fidelity Investments
Massachusetts
$36M 893,086 -157,259 -15%
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