ATYR

aTyr Pharma
ATYR

Overview Fund Activity

50 hedge funds and large institutions have $143M invested in aTyr Pharma in 2015 Q4 according to their latest regulatory filings, with 6 funds opening new positions, 20 increasing their positions, 13 reducing their positions, and 6 closing their positions.

Holders
50
Holders Change
–
Holders Change %
0%
% of All Funds
1.31%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.03%
New
6
Increased
20
Reduced
13
Closed
6
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
BFA
1
BlackRock Fund Advisors
California
$4.36M
2
Alyeska Investment Group
2
Alyeska Investment Group
Illinois
$3.04M
3
RIM
3
RS Investment Management
California
$11.9M
4
RSCM
4
Rock Springs Capital Management
Maryland
$4.08M
5
TD Asset Management
5
TD Asset Management
Ontario, Canada
$252K

Top Sellers

1
DM
1
Deerfield Management
New York
$0
2
SFM
2
Sphera Funds Management
Israel
$358K
3
MF
3
Magnetar Financial
Illinois
$1.83M
4
Lord, Abbett & Co
4
Lord, Abbett & Co
New Jersey
$1.07M
5
PI
5
Putnam Investments
Massachusetts
$0
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$34.9M 3,547,261 +1,369 +0%
BBA
2
Baker Bros. Advisors
New York
$23M 2,335,125 – –
PVMCV
3
Polaris Venture Management Co V
Massachusetts
$18M 1,827,992 – –
RIM
4
RS Investment Management
California
$11.9M 1,206,249 +124,000 +11%
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$11.5M 1,169,007 -15,100 -1%
EC
6
EcoR1 Capital
California
$7.77M 790,462 -50,000 -6%
TAM
7
Tiverton Asset Management
Delaware
$4.57M 465,000 -7,236 -2%
BFA
8
BlackRock Fund Advisors
California
$4.36M 443,937 +281,516 +173%
RCM
9
Riverhead Capital Management
Delaware
$4.08M 415,377 – –
RSCM
10
Rock Springs Capital Management
Maryland
$4.08M 415,196 +26,200 +7%
JPMorgan Chase & Co
11
JPMorgan Chase & Co
New York
$3.69M 375,750 +11,577 +3%
Alyeska Investment Group
12
Alyeska Investment Group
Illinois
$3.04M 309,062 +124,885 +68%
MF
13
Magnetar Financial
Illinois
$1.83M 186,299 -168,360 -47%
Vanguard Group
14
Vanguard Group
Pennsylvania
$1.7M 172,919 +20,308 +13%
Federated Hermes
15
Federated Hermes
Pennsylvania
$1.59M 161,300 – –
Lord, Abbett & Co
16
Lord, Abbett & Co
New Jersey
$1.07M 108,451 -68,303 -39%
BIT
17
BlackRock Institutional Trust
California
$820K 83,388 +1,671 +2%
Northern Trust
18
Northern Trust
Illinois
$607K 61,708 -147 -0.2%
Geode Capital Management
19
Geode Capital Management
Massachusetts
$462K 47,017 +3,135 +7%
State Street
20
State Street
Massachusetts
$444K 44,995 -100 -0.2%
SFM
21
Sphera Funds Management
Israel
$358K 36,450 -172,577 -83%
TD Asset Management
22
TD Asset Management
Ontario, Canada
$252K 25,614 +25,614 New
UBS Group
23
UBS Group
Switzerland
$216K 22,032 +6,132 +39%
BIM
24
BlackRock Investment Management
Delaware
$209K 21,312 +80 +0.4%
Bank of New York Mellon
25
Bank of New York Mellon
New York
$205K 20,826 – –
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