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Tandem Diabetes Care
TNDM

Overview Fund Activity

314 hedge funds and large institutions have $2.6B invested in Tandem Diabetes Care in 2024 Q4 according to their latest regulatory filings, with 41 funds opening new positions, 137 increasing their positions, 90 reducing their positions, and 51 closing their positions.

Holders
314
Holders Change
-16
Holders Change %
-4.85%
% of All Funds
4.18%
Holding in Top 10
5
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.07%
New
41
Increased
137
Reduced
90
Closed
51
Calls
$114M
Puts
$7.37M
Net Calls
+$106M
Net Calls Change
-$27.7M

Top Buyers

1
HRCM
1
Hood River Capital Management
Florida
$46M
2
Jacobs Levy Equity Management
2
Jacobs Levy Equity Management
New Jersey
$59.8M
3
Brown Advisory
3
Brown Advisory
Maryland
$32.9M
4
BlackRock
4
BlackRock
New York
$421M
5
PWAM
5
Park West Asset Management
California
$57.6M

Top Sellers

1
Capital World Investors
1
Capital World Investors
California
$27.6M
2
Millennium Management
2
Millennium Management
New York
$5.45M
3
BG
3
Bellevue Group
Switzerland
$28.2M
4
DCM
4
Driehaus Capital Management
Illinois
$0
5
Janus Henderson Group
5
Janus Henderson Group
United Kingdom
$1.07M
Name Market Value Shares Shares
Change 		Shares
Change %
BlackRock
1
BlackRock
New York
$421M 11,697,824 +587,379 +5%
Vanguard Group
2
Vanguard Group
Pennsylvania
$268M 7,440,005 +77,451 +1%
State Street
3
State Street
Massachusetts
$99.6M 2,765,137 +109,401 +4%
ACH
4
ArrowMark Colorado Holdings
Colorado
$98.1M 2,723,715 +337,026 +14%
GKIM
5
GW&K Investment Management
Massachusetts
$76.5M 2,123,488 +323,674 +18%
FAM
6
Fred Alger Management
New York
$70M 1,943,356 -35,763 -2%
Jacobs Levy Equity Management
7
Jacobs Levy Equity Management
New Jersey
$59.8M 1,661,013 +1,086,337 +189%
PWAM
8
Park West Asset Management
California
$57.6M 1,600,000 +530,000 +50%
SIMG
9
Stephens Investment Management Group
Texas
$56M 1,555,809 +281,327 +22%
Geode Capital Management
10
Geode Capital Management
Massachusetts
$55.3M 1,533,828 +8,012 +0.5%
Jennison Associates
11
Jennison Associates
New York
$52.8M 1,466,355 -315,648 -18%
CIP
12
Champlain Investment Partners
Vermont
$49.7M 1,379,863 -89,298 -6%
HRCM
13
Hood River Capital Management
Florida
$46M 1,278,047 +1,278,047 New
Fidelity Investments
14
Fidelity Investments
Massachusetts
$39.1M 1,086,842 +521,962 +92%
CC
15
Chicago Capital
Illinois
$35M 970,607 -32,540 -3%
PIM
16
Paradice Investment Management
Colorado
$34.4M 956,407 +52,966 +6%
Marshall Wace
17
Marshall Wace
United Kingdom
$34.3M 950,948 +137,354 +17%
GGHC
18
Gilder Gagnon Howe & Co
New York
$33.6M 931,894 +58,920 +7%
Brown Advisory
19
Brown Advisory
Maryland
$32.9M 913,087 +913,087 New
Two Sigma Advisers
20
Two Sigma Advisers
New York
$31.8M 881,783 -20,100 -2%
Two Sigma Investments
21
Two Sigma Investments
New York
$31M 861,188 +36,475 +4%
Morgan Stanley
22
Morgan Stanley
New York
$30.5M 847,109 -145,602 -15%
KCM
23
Kingdon Capital Management
New York
$28.5M 790,547 +260,547 +49%
BG
24
Bellevue Group
Switzerland
$28.2M 782,456 -1,068,435 -58%
Capital World Investors
25
Capital World Investors
California
$27.6M 767,000 -2,498,300 -77%
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