Purchases and Sales Made in Q4 2025 in Prothena Corp Public LTD CO (PRTA)
This table provides information about the institutional ownership of Prothena Corp Public LTD CO (PRTA) during Q4 2025. The information is specifically focused on institutions that hold shares of PROTHENA CORP PUBLIC LTD CO.
| Report Date | Institution (Fund) | Operation | Option | Shares change | Value Range | Shares Held | Trade History |
|---|---|---|---|---|---|---|---|
|
Jan 14, 2026
Q4 2025
|
Hennion & Walsh Asset Management, Inc.
|
BUY
|
- |
6.69K+ 7.9% |
$65.2K - $72.5K
|
91.3K
$936K
|
|
|
Jan 09, 2026
Q4 2025
|
Sg Americas Securities, LLC
|
BUY
|
- |
6.3K+ 11.11% |
$61.4K - $68.3K
|
63K
$646K
|
|
|
Jan 02, 2026
Q4 2025
|
Gamma Investing LLC
Foster City, CA |
BUY
|
- |
124+ 32.12% |
$1.21K - $1.35K
|
510
$5.23K
|
|
|
Jan 15, 2026
Q4 2025
|
Nisa Investment Advisors, LLC
|
SELL
|
- |
-480- 81.08% |
$4.68K - $5.21K
|
112
$1.15K
|
|
|
Jan 09, 2026
Q4 2025
|
Assenagon Asset Management S.A.
|
SELL
|
- |
-12.9K- 14.42% |
$126K - $140K
|
76.8K
$787K
|
|