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Tandem Diabetes Care
TNDM

Overview Fund Activity

289 hedge funds and large institutions have $5.08B invested in Tandem Diabetes Care in 2021 Q1 according to their latest regulatory filings, with 44 funds opening new positions, 105 increasing their positions, 102 reducing their positions, and 59 closing their positions.

Holders
289
Holders Change
-19
Holders Change %
-6.17%
% of All Funds
5.09%
Holding in Top 10
2
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-66.67%
% of All Funds
0.04%
New
44
Increased
105
Reduced
102
Closed
59
Calls
$68M
Puts
$44.5M
Net Calls
+$23.5M
Net Calls Change
-$35.3M

Top Buyers

1
CIP
1
Champlain Investment Partners
Vermont
$118M
2
CS
2
Credit Suisse
Switzerland
$179M
3
JSP
3
Jackson Square Partners
California
$327M
4
RI
4
RTW Investments
New York
$101M
5
Citadel Advisors
5
Citadel Advisors
Florida
$57.4M

Top Sellers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$48.4M
2
FAM
2
Fred Alger Management
New York
$15.4M
3
GGHC
3
Gilder Gagnon Howe & Co
New York
$69M
4
FA
4
Friess Associates
Delaware
$0
5
SAM
5
Sectoral Asset Management
Quebec, Canada
$3.1M
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$540M 6,120,176 -119,710 -2%
Vanguard Group
2
Vanguard Group
Pennsylvania
$482M 5,460,362 +192,974 +4%
JSP
3
Jackson Square Partners
California
$327M 3,705,812 +518,825 +16%
BlackRock
4
BlackRock
New York
$308M 3,489,221 +9,731 +0.3%
Capital World Investors
5
Capital World Investors
California
$273M 3,088,279 +15,315 +0.5%
CS
6
Credit Suisse
Switzerland
$179M 2,027,597 +621,872 +44%
Invesco
7
Invesco
Georgia
$156M 1,770,851 +18,172 +1%
CIP
8
Champlain Investment Partners
Vermont
$118M 1,342,160 +1,342,160 New
Federated Hermes
9
Federated Hermes
Pennsylvania
$112M 1,273,800 -125 -0%
BCM
10
Brown Capital Management
Maryland
$108M 1,229,302 +6,093 +0.5%
VOYA Investment Management
11
VOYA Investment Management
Georgia
$105M 1,187,946 -167,300 -12%
RI
12
RTW Investments
New York
$101M 1,139,230 +478,248 +72%
T. Rowe Price Associates
13
T. Rowe Price Associates
Maryland
$96.6M 1,094,315 -277,065 -20%
DMPV
14
Delphi Management Partners VIII
California
$88.3M 1,000,000 – –
WRF
15
Waddell & Reed Financial
Kansas
$82.9M 939,686 +63,531 +7%
State Street
16
State Street
Massachusetts
$74.5M 844,116 +8,009 +1%
GGHC
17
Gilder Gagnon Howe & Co
New York
$69M 781,459 -609,058 -44%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$68.6M 777,333 +31,160 +4%
SEI Investments
19
SEI Investments
Pennsylvania
$60.5M 685,377 +133,289 +24%
SIMG
20
Stephens Investment Management Group
Texas
$59.2M 671,322 +84,816 +14%
Citadel Advisors
21
Citadel Advisors
Florida
$57.4M 650,484 +446,808 +219%
AAM
22
Ardevora Asset Management
United Kingdom
$54.3M 615,538 +64,701 +12%
TCM
23
TimesSquare Capital Management
New York
$53.6M 606,800 -36,500 -6%
Norges Bank
24
Norges Bank
Norway
$49.2M 558,061 -59,522 -10%
Wellington Management Group
25
Wellington Management Group
Massachusetts
$48.4M 547,939 -1,716,495 -76%
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