Prothena Corp Public Ltd Co
PRTA- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001559053
In the last 90 days, Prothena Corp Public Ltd Co insiders filed 6 open-market purchases and 2 sales; 187 institutions reported holding it in 13F filings for Q2 2026, worth $462.7M in total; no superinvestor holds it.
Q4 2022 vs. Q3 2022
How the institutions holding Prothena Corp Public Ltd Co changed between Q3 2022 and Q4 2022.
All holders in Q4 2022All holders in Q3 2022
| Measure | Q3 2022 | Of which not filed for Q4 2022 | Q4 2022 | Change |
|---|---|---|---|---|
| Holders | 183 | 3 | 201 | +21 |
| Shares | 44.4M | 183 | 49.4M | +4.96M (+11.2%) |
| Value | $2.69B | $10.7K | $2.98B | +$282.3M (+10.5%) |
3 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so the changes leave them out.
New holders (44)
Institutions that held Prothena Corp Public Ltd Co at the end of Q4 2022 but not at the end of Q3 2022.
Sold out (23)
Institutions that held Prothena Corp Public Ltd Co at the end of Q3 2022 and filed for Q4 2022 without it.
| Institution | Shares, Q3 2022 | Value, Q3 2022 |
|---|---|---|
| Redmile Group, LLC | 525,575 | $31.9M |
| Sessa Capital IM, L.P. | 187,000 | $11.3M |
| Marshall Wace, LLP | 107,803 | $6.54M |
| Guggenheim Capital LLC | 75,795 | $4.59M |
| Walleye Trading LLC | 48,295 | $2.93M |
| Simplex Trading, LLC | 23,666 | $1.43M |
| New York Life Investments Alternatives | 22,566 | $1.37M |
| Hussman Strategic Advisors, Inc. | 15,600 | $946.0K |
| NinePointTwo Capital | 15,290 | $927.0K |
| Wolverine Trading, LLC | 14,805 | $880.0K |
| Virginia Retirement Systems Et Al | 14,000 | $848.8K |
| HRT Financial LP | 12,363 | $749.0K |
| Fox Run Management, L.L.C. | 7,126 | $432.0K |
| Virtu Financial LLC | 6,523 | $395.0K |
| Quantamental Technologies LLC | 5,106 | $310.0K |
| Hunter Perkins Capital Management, LLC | 4,101 | $249.0K |
| Winton Group Ltd | 4,039 | $245.0K |
| Old Well Partners, LLC | 3,924 | $238.0K |
| Vident Investment Advisory, LLC | 3,916 | $237.0K |
| Group One Trading, L.P. | 3,813 | $231.0K |
| Lazard Asset Management LLC | 1,733 | $105.0K |
| Bessemer Group Inc | 63 | $4.00K |
| Crewe Advisors LLC | 52 | $3.00K |
Not filed for Q4 2022 yet (3)
Institutions that held Prothena Corp Public Ltd Co at the end of Q3 2022 and haven't filed a 13F for Q4 2022. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q3 2022 | Value, Q3 2022 |
|---|---|---|
| Jefferies Group LLC | 174 | $10.6K |
| American Portfolios Advisors | 2 | $121 |
| Covington Capital Management | 7 | $0 |