Prothena Corp
PRTA
174 hedge funds and large institutions have $1.64B invested in Prothena Corp in 2022 Q1 according to their latest regulatory filings, with 18 funds opening new positions, 56 increasing their positions, 54 reducing their positions, and 37 closing their positions.
507% more call options, than puts
Call options by funds: $15.6M | Put options by funds: $2.57M
25% more funds holding in top 10
Funds holding in top 10: 4 → 5 (+1)
2.32% more ownership
Funds ownership: 92.07% → 94.4% (+2.3%)
4% more repeat investments, than reductions
Existing positions increased: 56 | Existing positions reduced: 54
11% less funds holding
Funds holding: 196 → 174 (-22)
23% less capital invested
Capital invested by funds: $2.12B → $1.64B (-$479M)
51% less first-time investments, than exits
New positions opened: 18 | Existing positions closed: 37
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
State Street
Boston,
Massachusetts
|
+$14.2M |
| 2 |
MRCP
Maple Rock Capital Partners
Toronto,
Ontario, Canada
|
+$12M |
| 3 |
EC
EcoR1 Capital
San Francisco,
California
|
+$10.8M |
| 4 |
PBA
Paradigm Biocapital Advisors
New York
|
+$9.66M |
| 5 |
Nuveen
Charlotte,
North Carolina
|
+$8.14M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jacobs Levy Equity Management
Florham Park,
New Jersey
|
-$8.76M |
| 2 |
Marshall Wace
London,
United Kingdom
|
-$7.36M |
| 3 |
Voloridge Investment Management
Jupiter,
Florida
|
-$7.19M |
| 4 |
HIM
Hillsdale Investment Management
Toronto,
Ontario, Canada
|
-$4.62M |
| 5 |
ECM
ExodusPoint Capital Management
New York
|
-$3.32M |
PRTA Hedge Fund Activity: Q1 2022 in Review
174 of the 6,360 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q1 2022, worth a combined $1.64B — down 23% from $2.12B a quarter earlier.
Sellers outnumbered buyers: 37 funds closed out of PRTA and 18 opened new positions — a net loss of 19 holders — while 54 trimmed existing stakes and 56 added.
The largest buyer was State Street, adding an estimated $14.2M. The largest seller was Jacobs Levy Equity Management, exiting entirely with an estimated $8.76M sold.
- 174 institutional investors held Prothena Corp (PRTA) as of Q1 2022, down from 196 in Q4 2021.
- Funds reported $1.64B of Prothena Corp stock for Q1 2022, down 23% quarter-over-quarter.
- 18 funds opened new Prothena Corp positions in Q1 2022 and 37 closed out, a net change of -19 holders.
- The largest Prothena Corp buyer in Q1 2022 was State Street, an estimated $14.2M added.
- The largest Prothena Corp seller in Q1 2022 was Jacobs Levy Equity Management, an estimated $8.76M sold.
Based on aggregated 13F filings for Q1 2022.