Prothena Corp
PRTA
120 hedge funds and large institutions have $414M invested in Prothena Corp in 2018 Q4 according to their latest regulatory filings, with 19 funds opening new positions, 35 increasing their positions, 32 reducing their positions, and 29 closing their positions.
100% more funds holding in top 10
Funds holding in top 10: 1 → 2 (+1)
9% more repeat investments, than reductions
Existing positions increased: 35 | Existing positions reduced: 32
1.27% less ownership
Funds ownership: 102.1% → 100.83% (-1.3%)
8% less funds holding
Funds holding: 130 → 120 (-10)
22% less capital invested
Capital invested by funds: $533M → $414M (-$119M)
34% less first-time investments, than exits
New positions opened: 19 | Existing positions closed: 29
67% less call options, than puts
Call options by funds: $3.91M | Put options by funds: $11.9M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
EC
EcoR1 Capital
San Francisco,
California
|
+$9.96M |
| 2 |
SCM
Scopia Capital Management
New York
|
+$8.34M |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$6.92M |
| 4 |
Dimensional Fund Advisors
Austin,
Texas
|
+$3.9M |
| 5 |
HT
HAP Trading
New York
|
+$3.55M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
-$14.5M |
| 2 |
Millennium Management
New York
|
-$7.93M |
| 3 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$6.09M |
| 4 |
State Street
Boston,
Massachusetts
|
-$4.87M |
| 5 |
Bank of America
Charlotte,
North Carolina
|
-$4.09M |
PRTA Hedge Fund Activity: Q4 2018 in Review
120 of the 4,488 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q4 2018, worth a combined $414M — down 22% from $533M a quarter earlier.
Sellers outnumbered buyers: 29 funds closed out of PRTA and 19 opened new positions — a net loss of 10 holders — while 32 trimmed existing stakes and 35 added.
The largest buyer was EcoR1 Capital, opening a new position worth an estimated $9.96M. The largest seller was Wellington Management Group, cutting an estimated $14.5M.
- 120 institutional investors held Prothena Corp (PRTA) as of Q4 2018, down from 130 in Q3 2018.
- Funds reported $414M of Prothena Corp stock for Q4 2018, down 22% quarter-over-quarter.
- 19 funds opened new Prothena Corp positions in Q4 2018 and 29 closed out, a net change of -10 holders.
- The largest Prothena Corp buyer in Q4 2018 was EcoR1 Capital, an estimated $9.96M added.
- The largest Prothena Corp seller in Q4 2018 was Wellington Management Group, an estimated $14.5M sold.
Based on aggregated 13F filings for Q4 2018.