Prothena Corp
PRTA
164 hedge funds and large institutions have $856M invested in Prothena Corp in 2024 Q3 according to their latest regulatory filings, with 23 funds opening new positions, 51 increasing their positions, 45 reducing their positions, and 19 closing their positions.
46% more call options, than puts
Call options by funds: $3.01M | Put options by funds: $2.06M
21% more first-time investments, than exits
New positions opened: 23 | Existing positions closed: 19
13% more repeat investments, than reductions
Existing positions increased: 51 | Existing positions reduced: 45
3% more funds holding
Funds holding: 160 → 164 (+4)
0.29% more ownership
Funds ownership: 94.51% → 94.79% (+0.29%)
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
18% less capital invested
Capital invested by funds: $1.05B → $856M (-$193M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
+$11.6M |
| 2 |
UBS AM
Chicago,
Illinois
|
+$10.4M |
| 3 |
Federated Hermes
Pittsburgh,
Pennsylvania
|
+$7.76M |
| 4 |
PM
Prosight Management
Dallas,
Texas
|
+$4.23M |
| 5 |
BlackRock
New York
|
+$3.68M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Janus Henderson Group
London,
United Kingdom
|
-$21.7M |
| 2 |
AG
Artal Group
Luxembourg
|
-$20.7M |
| 3 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$8.92M |
| 4 |
State Street
Boston,
Massachusetts
|
-$5.54M |
| 5 |
SFM
Systematic Financial Management
Teaneck,
New Jersey
|
-$3.99M |
PRTA Hedge Fund Activity: Q3 2024 in Review
164 of the 6,964 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q3 2024, worth a combined $856M — down 18% from $1.05B a quarter earlier.
Buyers outnumbered sellers: 23 funds opened new PRTA positions and 19 closed out — a net gain of 4 holders — while 51 added to existing stakes and 45 trimmed.
The largest buyer was Wellington Management Group, adding an estimated $11.6M. The largest seller was Janus Henderson Group, cutting an estimated $21.7M.
- 164 institutional investors held Prothena Corp (PRTA) as of Q3 2024, up from 160 in Q2 2024.
- Funds reported $856M of Prothena Corp stock for Q3 2024, down 18% quarter-over-quarter.
- 23 funds opened new Prothena Corp positions in Q3 2024 and 19 closed out, a net change of +4 holders.
- The largest Prothena Corp buyer in Q3 2024 was Wellington Management Group, an estimated $11.6M added.
- The largest Prothena Corp seller in Q3 2024 was Janus Henderson Group, an estimated $21.7M sold.
Based on aggregated 13F filings for Q3 2024.