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Prothena Corp
PRTA

155 hedge funds and large institutions have $1.63B invested in Prothena Corp in 2017 Q4 according to their latest regulatory filings, with 37 funds opening new positions, 51 increasing their positions, 40 reducing their positions, and 35 closing their positions.

New
Increased
Maintained
Reduced
Closed

28% more repeat investments, than reductions

Existing positions increased: 51 | Existing positions reduced: 40

1% more funds holding

Funds holding: 153 → 155 (+2)

6% more first-time investments, than exits

New positions opened: 37 | Existing positions closed: 35

0.14% more ownership

Funds ownership: 112.59% → 112.72% (+0.14%)

7% less call options, than puts

Call options by funds: $6.49M | Put options by funds: $6.99M

42% less capital invested

Capital invested by funds: $2.79B → $1.63B (-$1.17B)

50% less funds holding in top 10

Funds holding in top 10: 2 → 1 (-1)

Holders
155
Holders Change
+2
Holders Change %
+1.31%
% of All Funds
3.52%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.02%
New
37
Increased
51
Reduced
40
Closed
35
Calls
$6.49M
Puts
$6.99M
Net Calls
-$503K
Net Calls Change
+$346K

Top Buyers

Rank Fund Capital Flow
1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$33.3M
2
State Street
State Street
Massachusetts
+$9.33M
3
WIM
Woodford Investment Management
United Kingdom
+$9.11M
4
SFM
Sphera Funds Management
Israel
+$7.38M
5
CCM
Camber Capital Management
Massachusetts
+$6.36M

Top Sellers

Rank Fund Capital Flow
1
Loomis, Sayles & Company
Loomis, Sayles & Company
Massachusetts
-$21.7M
2
PI
Putnam Investments
Massachusetts
-$16.8M
3
O
OppenheimerFunds
New York
-$10.9M
4
Goldman Sachs
Goldman Sachs
New York
-$8.24M
5
Capital World Investors
Capital World Investors
California
-$7.89M
Name Holding Trade Value Shares
Change 		Change in
Stake
WMSA
151
Weiss Multi-Strategy Advisers
New York
– -$648K -10,000 Closed
DIA
152
Denver Investment Advisors
Colorado
– -$492K -7,590 Closed
Allianz Asset Management
153
Allianz Asset Management
Germany
– -$425K -6,560 Closed
Jane Street
154
Jane Street
New York
– -$404K -6,237 Closed
SM
155
SG3 Management
Puerto Rico
– -$389K -6,000 Closed
AG
156
Aperio Group
California
– -$379K -5,858 Closed
VF
157
Virtu Financial
New York
– -$354K -5,461 Closed
OAC
158
OMERS Administration Corp
Ontario, Canada
– -$330K -5,100 Closed
AB
159
Amalgamated Bank
New York
– -$316K -4,872 Closed
PM
160
Parametrica Management
Hong Kong
– -$307K -4,745 Closed
Squarepoint
161
Squarepoint
New York
– -$259K -3,997 Closed
BC
162
Birchview Capital
Vermont
– -$235K -3,632 Closed
Federated Hermes
163
Federated Hermes
Pennsylvania
– -$235K -3,627 Closed
Mirae Asset Global Investments
164
Mirae Asset Global Investments
South Korea
– -$214K -3,311 Closed
Tudor Investment Corp
165
Tudor Investment Corp
Connecticut
– -$214K -3,297 Closed
HFS
166
HL Financial Services
Kentucky
– -$208K -3,219 Closed
PG
167
PEAK6 Group
Illinois
– -$204K -3,150 Closed
SO
168
STRS Ohio
Ohio
– -$142K -2,200 Closed
NIT
169
NumerixS Investment Technologies
British Columbia, Canada
– -$123K -1,900 Closed
AFNAS
170
American Financial Network Advisory Services
California
– -$2K -32 Closed
JFA
171
JNBA Financial Advisors
Minnesota
– -$1K -14 Closed
WWM
172
Willingdon Wealth Management
North Carolina
– -$1K -12 Closed
TCM
173
Tradewinds Capital Management
Washington
– -$255 -5 -71%
IA
174
IFP Advisors
Florida
– -$204 -4 -80%
FANJ
175
Financial Architects (New Jersey)
New Jersey
– +$51 +1 New
4 5 6
7
8

PRTA Hedge Fund Activity: Q4 2017 in Review

155 of the 4,409 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q4 2017, worth a combined $1.63B — down 42% from $2.79B a quarter earlier.

Buyers outnumbered sellers: 37 funds opened new PRTA positions and 35 closed out — a net gain of 2 holders — while 51 added to existing stakes and 40 trimmed.

The largest buyer was T. Rowe Price Associates, adding an estimated $33.3M. The largest seller was Loomis, Sayles & Company, exiting entirely with an estimated $21.7M sold.

  • 155 institutional investors held Prothena Corp (PRTA) as of Q4 2017, up from 153 in Q3 2017.
  • Funds reported $1.63B of Prothena Corp stock for Q4 2017, down 42% quarter-over-quarter.
  • 37 funds opened new Prothena Corp positions in Q4 2017 and 35 closed out, a net change of +2 holders.
  • The largest Prothena Corp buyer in Q4 2017 was T. Rowe Price Associates, an estimated $33.3M added.
  • The largest Prothena Corp seller in Q4 2017 was Loomis, Sayles & Company, an estimated $21.7M sold.

Based on aggregated 13F filings for Q4 2017.