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Prothena Corp
PRTA

88 hedge funds and large institutions have $183M invested in Prothena Corp in 2013 Q3 according to their latest regulatory filings, with 14 funds opening new positions, 25 increasing their positions, 22 reducing their positions, and 9 closing their positions.

New
Increased
Maintained
Reduced
Closed

405% more call options, than puts

Call options by funds: $101K | Put options by funds: $20K

56% more first-time investments, than exits

New positions opened: 14 | Existing positions closed: 9

49% more capital invested

Capital invested by funds: $123M → $183M (+$60.5M)

14% more repeat investments, than reductions

Existing positions increased: 25 | Existing positions reduced: 22

6% more funds holding

Funds holding: 83 → 88 (+5)

Holders
88
Holders Change
+5
Holders Change %
+6.02%
% of All Funds
2.85%
Holding in Top 10
1
Holding in Top 10 Change
+1
Holding in Top 10 Change %
% of All Funds
0.03%
New
14
Increased
25
Reduced
22
Closed
9
Calls
$101K
Puts
$20K
Net Calls
+$81K
Net Calls Change
+$78K

Top Buyers

Rank Fund Capital Flow
1
RCM
RA Capital Management
Massachusetts
+$20.3M
2
Northern Trust
Northern Trust
Illinois
+$1.77M
3
Vanguard Group
Vanguard Group
Pennsylvania
+$1.61M
4
Millennium Management
Millennium Management
New York
+$1.26M
5
TC
TFS Capital
Pennsylvania
+$1.21M

Top Sellers

Rank Fund Capital Flow
1
Invesco
Invesco
Georgia
-$21.1M
2
Wellington Management Group
Wellington Management Group
Massachusetts
-$11.1M
3
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$5.01M
4
Morgan Stanley
Morgan Stanley
New York
-$682K
5
Deutsche Bank
Deutsche Bank
Germany
-$659K
Name Holding Trade Value Shares
Change 		Change in
Stake
GIM
26
Granahan Investment Management
Massachusetts
$686K -$61.9K -3,500 -9%
California State Teachers Retirement System (CalSTRS)
27
California State Teachers Retirement System (CalSTRS)
California
$431K +$10.6K +600 +3%
California Public Employees Retirement System
28
California Public Employees Retirement System
California
$427K +$373K +21,100 New
Susquehanna International Group
29
Susquehanna International Group
Pennsylvania
$421K -$159 -9 -0%
DAM
30
Deltec Asset Management
New York
$389K – – –
Charles Schwab
31
Charles Schwab
California
$339K – – –
RhumbLine Advisers
32
RhumbLine Advisers
Massachusetts
$326K -$1.19K -67 -0.4%
Canada Pension Plan Investment Board
33
Canada Pension Plan Investment Board
Ontario, Canada
$325K – – –
TA
34
Teachers Advisors
New York
$315K -$18 -1 -0%
JP Morgan Chase
35
JP Morgan Chase
New York
$310K +$271K +15,292 New
BOS
36
Bingham Osborn & Scarborough
California
$260K – – –
MLICM
37
Metropolitan Life Insurance Company (MetLife)
New York
$217K +$190K +10,713 New
NFA
38
Nationwide Fund Advisors
Ohio
$190K +$100K +5,649 +150%
AIG
39
American International Group
New York
$161K +$141K +7,960 +796,000%
Acadian Asset Management
40
Acadian Asset Management
Massachusetts
$147K -$364K -20,544 -74%
BA
41
BlackRock Advisors
Delaware
$115K +$6.57K +371 +7%
SG Americas Securities
42
SG Americas Securities
New York
$109K +$95.3K +5,386 New
KBC Group
43
KBC Group
Belgium
$78K -$1.63K -92 -2%
RFC
44
Russell Frank Company
Washington
$74K +$60.2K +3,405 +1,315%
U
45
UBS
Switzerland
$68K +$10.8K +611 +22%
PAM
46
Panagora Asset Management
Massachusetts
$66K +$57.5K +3,248 New
Bank of America
47
Bank of America
North Carolina
$62K -$280K -15,848 -84%
SO
48
STRS Ohio
Ohio
$55K -$77K -4,350 -62%
TI
49
Turner Investments
Pennsylvania
$51K – – –
Citigroup
50
Citigroup
New York
$49K -$101K -5,719 -70%
1
2
3 4

PRTA Hedge Fund Activity: Q3 2013 in Review

88 of the 3,084 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q3 2013, worth a combined $183M — up 49% from $123M a quarter earlier.

Buyers outnumbered sellers: 14 funds opened new PRTA positions and 9 closed out — a net gain of 5 holders — while 25 added to existing stakes and 22 trimmed.

The largest buyer was RA Capital Management, adding an estimated $20.3M. The largest seller was Invesco, cutting an estimated $21.1M.

  • 88 institutional investors held Prothena Corp (PRTA) as of Q3 2013, up from 83 in Q2 2013.
  • Funds reported $183M of Prothena Corp stock for Q3 2013, up 49% quarter-over-quarter.
  • 14 funds opened new Prothena Corp positions in Q3 2013 and 9 closed out, a net change of +5 holders.
  • The largest Prothena Corp buyer in Q3 2013 was RA Capital Management, an estimated $20.3M added.
  • The largest Prothena Corp seller in Q3 2013 was Invesco, an estimated $21.1M sold.

Based on aggregated 13F filings for Q3 2013.