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.
Q2 2022 vs. Q1 2022
How the institutions holding Prothena Corp Public Ltd Co changed between Q1 2022 and Q2 2022.
All holders in Q2 2022All holders in Q1 2022
| Measure | Q1 2022 | Of which not filed for Q2 2022 | Q2 2022 | Change |
|---|---|---|---|---|
| Holders | 174 | 3 | 167 | −4 |
| Shares | 44.1M | 66.0K | 44.5M | +491.0K (+1.1%) |
| Value | $1.61B | $2.41M | $1.21B | −$400.2M (−24.8%) |
3 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so the changes leave them out.
New holders (17)
Institutions that held Prothena Corp Public Ltd Co at the end of Q2 2022 but not at the end of Q1 2022.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Finepoint Capital LP | 457,500 | $12.4M | 4.29% |
| PFM Health Sciences, LP | 345,114 | $9.37M | 0.37% |
| Guggenheim Capital LLC | 76,216 | $2.07M | 0.02% |
| Man Group plc | – | $1.21M | 0.01% |
| Balyasny Asset Management LLC | 34,377 | $933.0K | 0.00% |
| Jane Street Group, LLC | 25,168 | $683.0K | 0.00% |
| ETF Managers Group, LLC | 24,869 | $667.0K | 0.02% |
| Tudor Investment Corp Et Al | 23,459 | $637.0K | 0.02% |
| Kiwi Wealth Investments Limited Partnership | 16,900 | $458.8K | 0.03% |
| Connor, Clark & Lunn Investment Management Ltd. | 16,030 | $435.0K | 0.00% |
| Dynamic Technology Lab Private Ltd | 15,090 | $410.0K | 0.05% |
| Fox Run Management, L.L.C. | 12,918 | $351.0K | 0.18% |
| Mirae Asset Global Investments Co., Ltd. | 10,890 | $296.0K | 0.00% |
| Simplex Trading, LLC | 3,231 | $87.0K | 0.00% |
| Harbour Investments, Inc. | 5 | $0 | 0.00% |
| CoreCap Advisors, LLC | 11 | $0 | 0.00% |
| Steward Financial Group LLC | 4 | $0 | 0.00% |
Sold out (21)
Institutions that held Prothena Corp Public Ltd Co at the end of Q1 2022 and filed for Q2 2022 without it.
| Institution | Shares, Q1 2022 | Value, Q1 2022 |
|---|---|---|
| Paradigm Biocapital Advisors LP | 267,946 | $9.80M |
| Perceptive Advisors LLC | 65,144 | $2.38M |
| Gsa Capital Partners LLP | 31,142 | $1.14M |
| Gotham Asset Management, LLC | 25,784 | $943.0K |
| Engineers Gate Manager LP | 21,992 | $804.0K |
| Twinbeech Capital LP | 18,374 | $672.0K |
| Algert Global LLC | 16,875 | $617.0K |
| Healthcare of Ontario Pension Plan Trust Fund | 16,800 | $614.0K |
| AlphaCrest Capital Management LLC | 15,348 | $561.0K |
| Massachusetts Financial Services Co | 13,556 | $496.0K |
| HighVista Strategies LLC | 12,953 | $474.0K |
| Franklin Resources Inc | 9,236 | $338.0K |
| AQR Capital Management LLC | 8,363 | $306.0K |
| HighTower Advisors, LLC | 7,820 | $286.0K |
| Teacher Retirement System of Texas | 6,685 | $244.0K |
| King Wealth | 6,000 | $219.0K |
| Aquatic Capital Management LLC | 2,000 | $73.0K |
| Group One Trading, L.P. | 1,029 | $38.0K |
| Lloyd Advisory Services, LLC. | 48 | $2.00K |
| Investors Research Corp | 4 | $0 |
| Cordant, Inc. | 4 | $0 |
Not filed for Q2 2022 yet (3)
Institutions that held Prothena Corp Public Ltd Co at the end of Q1 2022 and haven't filed a 13F for Q2 2022. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q1 2022 | Value, Q1 2022 |
|---|---|---|
| Parametric Portfolio Associates LLC | 47,032 | $1.72M |
| Virginia Retirement Systems Et Al | 13,400 | $490.0K |
| Amalgamated Financial Corp. | 5,541 | $203.0K |