Prothena Corp
PRTA
169 hedge funds and large institutions have $1.33B invested in Prothena Corp in 2024 Q1 according to their latest regulatory filings, with 25 funds opening new positions, 57 increasing their positions, 62 reducing their positions, and 41 closing their positions.
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
0% less call options, than puts
Call options by funds: $4.77M | Put options by funds: $4.78M
8% less repeat investments, than reductions
Existing positions increased: 57 | Existing positions reduced: 62
1.17% less ownership
Funds ownership: 100.74% → 99.57% (-1.2%)
10% less funds holding
Funds holding: 187 → 169 (-18)
33% less capital invested
Capital invested by funds: $1.97B → $1.33B (-$640M)
39% less first-time investments, than exits
New positions opened: 25 | Existing positions closed: 41
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
+$34.5M |
| 2 |
AC
Armistice Capital
New York
|
+$24.3M |
| 3 |
State Street
Boston,
Massachusetts
|
+$21.3M |
| 4 |
AG
Artal Group
Luxembourg
|
+$14.9M |
| 5 |
Millennium Management
New York
|
+$8.47M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Janus Henderson Group
London,
United Kingdom
|
-$21.6M |
| 2 |
FLAM
First Light Asset Management
Edina,
Minnesota
|
-$19.2M |
| 3 |
EAM
Eventide Asset Management
Boston,
Massachusetts
|
-$16.2M |
| 4 |
MRCP
Maple Rock Capital Partners
Toronto,
Ontario, Canada
|
-$13.6M |
| 5 |
Morgan Stanley
New York
|
-$9.28M |
PRTA Hedge Fund Activity: Q1 2024 in Review
169 of the 6,942 institutional investors tracked by Wall St. Rank reported a position in Prothena Corp (PRTA) for Q1 2024, worth a combined $1.33B — down 33% from $1.97B a quarter earlier.
Sellers outnumbered buyers: 41 funds closed out of PRTA and 25 opened new positions — a net loss of 16 holders — while 62 trimmed existing stakes and 57 added.
The largest buyer was Wellington Management Group, adding an estimated $34.5M. The largest seller was Janus Henderson Group, cutting an estimated $21.6M.
- 169 institutional investors held Prothena Corp (PRTA) as of Q1 2024, down from 187 in Q4 2023.
- Funds reported $1.33B of Prothena Corp stock for Q1 2024, down 33% quarter-over-quarter.
- 25 funds opened new Prothena Corp positions in Q1 2024 and 41 closed out, a net change of -16 holders.
- The largest Prothena Corp buyer in Q1 2024 was Wellington Management Group, an estimated $34.5M added.
- The largest Prothena Corp seller in Q1 2024 was Janus Henderson Group, an estimated $21.6M sold.
Based on aggregated 13F filings for Q1 2024.