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Tandem Diabetes Care
TNDM

Overview Fund Activity

200 hedge funds and large institutions have $1.81B invested in Tandem Diabetes Care in 2018 Q4 according to their latest regulatory filings, with 46 funds opening new positions, 74 increasing their positions, 57 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
200
Holders Change
+16
Holders Change %
+8.7%
% of All Funds
4.46%
Holding in Top 10
7
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.16%
New
46
Increased
74
Reduced
57
Closed
30
Calls
$56.2M
Puts
$38.8M
Net Calls
+$17.4M
Net Calls Change
-$34.5M

Top Buyers

1
Vanguard Group
1
Vanguard Group
Pennsylvania
$215M
2
Renaissance Technologies
2
Renaissance Technologies
New York
$53.6M
3
CCI
3
Columbus Circle Investors
$32.2M
4
TCM
4
TimesSquare Capital Management
New York
$62.3M
5
DCM
5
Daruma Capital Management
New York
$18.9M

Top Sellers

1
HCM
1
Hitchwood Capital Management
New York
$0
2
SSA
2
Schonfeld Strategic Advisors
New York
$8.81M
3
BC
3
Broadfin Capital
New York
$3.38M
4
Two Sigma Investments
4
Two Sigma Investments
New York
$24.4M
5
Goldman Sachs
5
Goldman Sachs
New York
$19.6M
Name Holding Trade Value Shares
Change 		Shares
Change %
Ohio Public Employees Retirement System (OPERS)
51
Ohio Public Employees Retirement System (OPERS)
Ohio
$4.6M – – –
Citadel Advisors
52
Citadel Advisors
Florida
$4.6M -$7.54M -198,596 -62%
GGHC
53
Gilder Gagnon Howe & Co
New York
$4.49M +$4.34M +114,215 +2,819%
Wells Fargo
54
Wells Fargo
California
$4.35M +$3.33M +87,652 +325%
Russell Investments Group
55
Russell Investments Group
United Kingdom
$4.34M +$4.34M +114,326 New
Macquarie Group
56
Macquarie Group
Australia
$4.24M +$4.22M +111,040 +22,208%
CS
57
Credit Suisse
Switzerland
$3.98M +$3.54M +93,194 +800%
MWNA
58
Marshall Wace North America
New York
$3.95M -$6.96M -183,332 -64%
TA
59
Teachers Advisors
New York
$3.95M +$166K +4,371 +4%
ACM
60
Atika Capital Management
New York
$3.84M -$532K -14,000 -12%
GPCM
61
Granite Point Capital Management
Massachusetts
$3.8M -$1.52M -40,000 -29%
BG
62
Bellevue Group
Switzerland
$3.77M +$78.2K +2,058 +2%
California Public Employees Retirement System
63
California Public Employees Retirement System
California
$3.73M +$2.66M +70,000 +248%
SEI Investments
64
SEI Investments
Pennsylvania
$3.72M +$756K +18,079 +26%
PVI
65
Pura Vida Investments
New York
$3.68M +$797K +20,981 +28%
TCIM
66
TIAA CREF Investment Management
New York
$3.59M -$157K -4,141 -4%
Swiss National Bank
67
Swiss National Bank
Switzerland
$3.46M +$3.46M +91,100 New
BC
68
Broadfin Capital
New York
$3.38M -$18.4M -483,979 -84%
EI
69
EAM Investors
California
$3.38M -$907K -23,894 -21%
Balyasny Asset Management
70
Balyasny Asset Management
Illinois
$3.28M +$1.04M +27,462 +47%
BIM
71
Bogle Investment Management
Massachusetts
$3.18M +$608K +16,010 +24%
Invesco
72
Invesco
Georgia
$3.1M +$1.73M +45,582 +127%
First Trust Advisors
73
First Trust Advisors
Illinois
$3.04M +$3.04M +79,974 New
California State Teachers Retirement System (CalSTRS)
74
California State Teachers Retirement System (CalSTRS)
California
$3.03M +$68.3K +1,800 +2%
EIM
75
Essex Investment Management
Massachusetts
$3M +$1M +26,432 +50%
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