Prothena Corp
PRTA
130 hedge funds and large institutions have $294M invested in Prothena Corp in 2019 Q3 according to their latest regulatory filings, with 11 funds opening new positions, 34 increasing their positions, 45 reducing their positions, and 19 closing their positions.
617% more call options, than puts
Call options by funds: $1.07M | Put options by funds: $149K
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
3.05% less ownership
Funds ownership: 97.09% → 94.04% (-3%)
6% less funds holding
Funds holding: 138 → 130 (-8)
24% less repeat investments, than reductions
Existing positions increased: 34 | Existing positions reduced: 45
28% less capital invested
Capital invested by funds: $409M → $294M (-$115M)
42% less first-time investments, than exits
New positions opened: 11 | Existing positions closed: 19
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
EC
EcoR1 Capital
San Francisco,
California
|
+$77.3M |
| 2 |
Millennium Management
New York
|
+$6.15M |
| 3 |
GPP
Great Point Partners
Greenwich,
Connecticut
|
+$3.46M |
| 4 |
LCM
Lonestar Capital Management
San Francisco,
California
|
+$2.66M |
| 5 |
Verition Fund Management
Greenwich,
Connecticut
|
+$1.41M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
WIM
Woodford Investment Management
London,
United Kingdom
|
-$92.7M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$6.42M |
| 3 |
American Century Companies
Kansas City,
Missouri
|
-$2.83M |
| 4 |
Two Sigma Investments
New York
|
-$2.19M |
| 5 |
Bank of America
Charlotte,
North Carolina
|
-$1.84M |
PRTA Hedge Fund Activity: Q3 2019 in Review
130 of the 4,560 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q3 2019, worth a combined $294M — down 28% from $409M a quarter earlier.
Sellers outnumbered buyers: 19 funds closed out of PRTA and 11 opened new positions — a net loss of 8 holders — while 45 trimmed existing stakes and 34 added.
The largest buyer was EcoR1 Capital, adding an estimated $77.3M. The largest seller was Woodford Investment Management, exiting entirely with an estimated $92.7M sold.
- 130 institutional investors held Prothena Corp (PRTA) as of Q3 2019, down from 138 in Q2 2019.
- Funds reported $294M of Prothena Corp stock for Q3 2019, down 28% quarter-over-quarter.
- 11 funds opened new Prothena Corp positions in Q3 2019 and 19 closed out, a net change of -8 holders.
- The largest Prothena Corp buyer in Q3 2019 was EcoR1 Capital, an estimated $77.3M added.
- The largest Prothena Corp seller in Q3 2019 was Woodford Investment Management, an estimated $92.7M sold.
Based on aggregated 13F filings for Q3 2019.