We are live on ! Find out more
PRTA icon

Prothena Corp

Name Holding Trade Value Shares
Change
Change in
Stake
EC
1
EcoR1 Capital
California
$559M
Fidelity Investments
2
Fidelity Investments
Massachusetts
$387M +$6.98M +117,524 +1%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$184M +$15.8M +266,245 +7%
BlackRock
4
BlackRock
New York
$171M -$4.16M -70,010 -2%
Wellington Management Group
5
Wellington Management Group
Massachusetts
$103M -$4.13M -69,575 -3%
State Street
6
State Street
Massachusetts
$102M +$14.1M +236,555 +13%
Janus Henderson Group
7
Janus Henderson Group
$88.1M +$9.15M +154,078 +9%
PAI
8
Palo Alto Investors
California
$80M
FLAM
9
First Light Asset Management
Minnesota
$72.1M -$362K -6,090 -0.4%
Dimensional Fund Advisors
10
Dimensional Fund Advisors
Texas
$53.2M -$2.81M -47,346 -4%
Vanguard Group
11
Vanguard Group
Pennsylvania
$49.7M -$589K -9,907 -1%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$41.5M +$1.23M +20,639 +2%
T. Rowe Price Investment Management
13
T. Rowe Price Investment Management
Maryland
$41.2M -$1.35M -22,691 -3%
PHS
14
PFM Health Sciences
California
$40.4M +$3.68M +62,025 +8%
BC
15
Boxer Capital
California
$30.2M +$19.3M +325,000 +108%
RSCM
16
Rock Springs Capital Management
Maryland
$29.6M -$8.27M -139,164 -18%
Bank of New York Mellon
17
Bank of New York Mellon
New York
$24.1M -$882K -14,851 -3%
EAM
18
Eventide Asset Management
Massachusetts
$21.5M
Nuveen
19
Nuveen
North Carolina
$21.1M -$341K -5,746 -1%
Northern Trust
20
Northern Trust
Illinois
$19.8M -$126K -2,128 -0.5%
JP Morgan Chase
21
JP Morgan Chase
New York
$19.4M -$715K -12,034 -3%
APM
22
Avidity Partners Management
Texas
$18.4M -$9.07M -152,695 -29%
FC
23
Finepoint Capital
Massachusetts
$16.9M +$1.9M +32,000 +10%
GIM
24
Granahan Investment Management
Massachusetts
$16.8M +$3.15M +53,008 +18%
Charles Schwab
25
Charles Schwab
California
$14.9M -$234K -3,946 -1%