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63 hedge funds and large institutions have $916M invested in argenx in 2017 Q4 according to their latest regulatory filings, with 34 funds opening new positions, 20 increasing their positions, 5 reducing their positions, and 3 closing their positions.

New
Increased
Maintained
Reduced
Closed

1,033% more first-time investments, than exits

New positions opened: 34 | Existing positions closed: 3

488% more capital invested

Capital invested by funds: $156M → $916M (+$761M)

400% more funds holding in top 10

Funds holding in top 10: 15 (+4)

300% more repeat investments, than reductions

Existing positions increased: 20 | Existing positions reduced: 5

97% more funds holding

Funds holding: 3263 (+31)

19.11% more ownership

Funds ownership: 25.83%44.94% (+19%)

Holders
63
Holders Change
+31
Holders Change %
+96.88%
% of All Funds
1.43%
Holding in Top 10
5
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+400%
% of All Funds
0.11%
New
34
Increased
20
Reduced
5
Closed
3
Calls
Puts
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$94.1M +$24.1M +737,139 +98%
BBA
2
Baker Bros. Advisors
New York
$60.7M +$28.2M +861,754 +862%
ACA
3
Avoro Capital Advisors
New York
$50.8M +$12.3M +375,275 +87%
Federated Hermes
4
Federated Hermes
Pennsylvania
$50.5M +$11.5M +350,000 +78%
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$50.1M +$13.7M +418,344 +112%
CCM
6
Consonance Capital Management
New York
$49.5M +$25.7M +783,869 New
Adage Capital Partners
7
Adage Capital Partners
Massachusetts
$47.7M +$19.8M +605,000 +403%
VMI
8
VHCP Management II
New York
$41M +$86.8K +2,650 +0.4%
Millennium Management
9
Millennium Management
New York
$37.6M +$19.5M +595,514 New
Janus Henderson Group
10
Janus Henderson Group
United Kingdom
$35.7M +$18.5M +565,285 New
PA
11
Perceptive Advisors
New York
$33.9M +$2.86M +87,361 +19%
PAMU
12
Pictet Asset Management (UK)
United Kingdom
$33.4M +$90.4K +2,760 +0.5%
O
13
OrbiMed
New York
$31.6M
Franklin Resources
14
Franklin Resources
California
$28.9M +$3.52M +107,600 +31%
DM
15
Deerfield Management
New York
$23.1M -$4.68M -143,061 -28%
ACP
16
Acuta Capital Partners
California
$20.4M +$3.5M +106,745 +49%
CAM
17
Cormorant Asset Management
Massachusetts
$18.3M +$9.5M +290,000 New
Jennison Associates
18
Jennison Associates
New York
$18.1M +$5.3M +161,846 +130%
GTC
19
Ghost Tree Capital
New York
$15.8M -$83K -2,534 -1%
ACH
20
ArrowMark Colorado Holdings
Colorado
$13.3M +$6.9M +210,716 New
AG
21
Artal Group
Luxembourg
$12.6M +$4.77M +145,663 +268%
RG
22
Redmile Group
California
$12.6M +$6.55M +200,000 New
QF
23
QVT Financial
New York
$11.3M -$669K -20,440 -10%
Axa
24
Axa
France
$11.1M +$823K +25,129 +17%
Renaissance Technologies
25
Renaissance Technologies
New York
$10.5M +$5.46M +166,827 New