ATYR

aTyr Pharma
ATYR

Overview Fund Activity

50 hedge funds and large institutions have $152M invested in aTyr Pharma in 2015 Q3 according to their latest regulatory filings, with 8 funds opening new positions, 16 increasing their positions, 14 reducing their positions, and 4 closing their positions.

Holders
50
Holders Change
+4
Holders Change %
+8.7%
% of All Funds
1.4%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.06%
New
8
Increased
16
Reduced
14
Closed
4
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
RIM
1
RS Investment Management
California
$11.1M
2
JPMorgan Chase & Co
2
JPMorgan Chase & Co
New York
$3.74M
3
Alyeska Investment Group
3
Alyeska Investment Group
Illinois
$1.89M
4
Northern Trust
4
Northern Trust
Illinois
$635K
5
MF
5
Magnetar Financial
Illinois
$3.64M

Top Sellers

1
BI
1
BVF Inc
California
$0
2
MIG
2
Mariner Investment Group
New York
$0
3
Lord, Abbett & Co
3
Lord, Abbett & Co
New Jersey
$1.81M
4
TCIM
4
TIAA CREF Investment Management
New York
$199K
5
RSCM
5
Rock Springs Capital Management
Maryland
$3.99M
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$36.4M 3,545,892 +711 +0%
BBA
2
Baker Bros. Advisors
New York
$24M 2,335,125 – –
PVMCV
3
Polaris Venture Management Co V
Massachusetts
$18.8M 1,827,992 – –
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$11.8M 1,184,107 -5,937 -0.5%
RIM
5
RS Investment Management
California
$11.1M 1,082,249 +413,012 +62%
EC
6
EcoR1 Capital
California
$8.62M 840,462 +3,602 +0.4%
TAM
7
Tiverton Asset Management
Delaware
$4.85M 472,236 +22,236 +5%
DM
8
Deerfield Management
New York
$4.74M 461,530 – –
RCM
9
Riverhead Capital Management
Delaware
$4.26M 415,377 – –
RSCM
10
Rock Springs Capital Management
Maryland
$3.99M 388,996 -19,500 -5%
JPMorgan Chase & Co
11
JPMorgan Chase & Co
New York
$3.74M 364,173 +177,924 +96%
MF
12
Magnetar Financial
Illinois
$3.64M 354,659 +45,800 +15%
SFM
13
Sphera Funds Management
Israel
$2.15M 209,027 – –
Alyeska Investment Group
14
Alyeska Investment Group
Illinois
$1.89M 184,177 +109,057 +145%
Lord, Abbett & Co
15
Lord, Abbett & Co
New Jersey
$1.81M 176,754 -66,643 -27%
BFA
16
BlackRock Fund Advisors
California
$1.67M 162,421 +3,481 +2%
Federated Hermes
17
Federated Hermes
Pennsylvania
$1.66M 161,300 – –
Vanguard Group
18
Vanguard Group
Pennsylvania
$1.57M 152,611 -3,392 -2%
BIT
19
BlackRock Institutional Trust
California
$838K 81,717 +43,264 +113%
Northern Trust
20
Northern Trust
Illinois
$635K 61,855 +61,855 New
Goldman Sachs
21
Goldman Sachs
New York
$610K 59,445 -18,068 -23%
PI
22
Putnam Investments
Massachusetts
$528K 51,438 +1,774 +4%
State Street
23
State Street
Massachusetts
$461K 45,095 +7,818 +21%
Geode Capital Management
24
Geode Capital Management
Massachusetts
$450K 43,882 +43,882 New
BIM
25
BlackRock Investment Management
Delaware
$218K 21,232 -402 -2%
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