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 4 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.
13F holders, Q3 2024
Institutional positions in Prothena Corp Public Ltd Co as of Sep 30, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 164
- +5 vs. Q2 2024
- Shares held
- 51.0M
- +4.02M (+8.6%) vs. Q2 2024
- Total value
- $855.8M
- −$113.4M (−11.7%) vs. Q2 2024
- New holders
- 24
- 50 more added
- Sold out
- 19
- 45 more reduced
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting PRTA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 187 | $462.7M |
| Q1 2026 | 186 | $459.5M |
| Q4 2025 | 182 | $451.6M |
| Q3 2025 | 187 | $415.8M |
| Q2 2025 | 189 | $253.6M |
| Q1 2025 | 161 | $647.2M |
| Q4 2024 | 171 | $741.3M |
| Q3 2024 | 164 | $855.8M |
| Q2 2024 | 160 | $1.05B |
| Q1 2024 | 169 | $1.33B |
| Q4 2023 | 187 | $1.95B |
| Q3 2023 | 187 | $2.56B |
| Q2 2023 | 196 | $3.54B |
| Q1 2023 | 192 | $2.51B |
| Q4 2022 | 201 | $2.98B |
| Q3 2022 | 183 | $2.69B |
| Q2 2022 | 167 | $1.21B |
| Q1 2022 | 174 | $1.61B |
| Q4 2021 | 196 | $2.12B |
| Q3 2021 | 192 | $2.92B |
| Q2 2021 | 156 | $2.08B |
| Q1 2021 | 146 | $1.00B |
Institutions, Q3 2024
Shares, value and share of portfolio for each institution holding Prothena Corp Public Ltd Co; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Covestor Ltd | 4 | $0 | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 1 | $17 | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 3 | $50 | 0.00% | 00.0% | Unchanged |
| Hallmark Capital Management Inc | 3 | $50 | 0.00% | +3 | New |
| Clearstead Advisors, LLC | 4 | $67 | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 6 | $100 | 0.00% | −21−77.8% | Reduced |
| Lowe Wealth Advisors, LLC | 10 | $167 | 0.00% | 00.0% | Unchanged |
| Key Financial Inc | 12 | $201 | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 23 | $385 | 0.00% | 00.0% | Unchanged |
| POM Investment Strategies, LLC | 24 | $402 | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 40 | $669 | 0.00% | +30+300.0% | Added |
| Allworth Financial LP | 44 | $737 | 0.00% | +12+37.5% | Added |
| CIBC Private Wealth Group, LLC | 49 | $820 | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 55 | $1.00K | 0.00% | +55 | New |
| Ronald Blue Trust, Inc. | 53 | $1.09K | 0.00% | −117−68.8% | Reduced |
| GAMMA Investing LLC | 67 | $1.12K | 0.00% | −300−81.7% | Reduced |
| Truvestments Capital LLC | 68 | $1.14K | 0.00% | +68 | New |
| Allspring Global Investments Holdings, LLC | 73 | $1.22K | 0.00% | −1,662−95.8% | Reduced |
| Sterling Capital Management LLC | 91 | $1.52K | 0.00% | +91 | New |
| CVA Family Office, LLC | 94 | $1.57K | 0.00% | +94 | New |
| EverSource Wealth Advisors, LLC | 95 | $1.59K | 0.00% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 100 | $1.67K | 0.00% | 00.0% | Unchanged |
| Gould Capital, LLC | 100 | $1.67K | 0.00% | 00.0% | Unchanged |
| Lindbrook Capital, LLC | 103 | $1.72K | 0.00% | −758−88.0% | Reduced |
| Cornerstone Planning Group LLC | 110 | $2.01K | 0.00% | +83+307.4% | Added |
| Albion Financial Group | 125 | $2.09K | 0.00% | 00.0% | Unchanged |
| Sittner & Nelson, LLC | 155 | $2.59K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 195 | $3.00K | 0.00% | 00.0% | Unchanged |
| Asset Dedication, LLC | 184 | $3.08K | 0.00% | 00.0% | Unchanged |
| MeadowBrook Investment Advisors LLC | 200 | $3.35K | 0.00% | 00.0% | Unchanged |
| Private Wealth Management Group, LLC | 230 | $3.85K | 0.00% | +204+784.6% | Added |
| Manchester Capital Management LLC | 250 | $4.18K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 269 | $5.39K | 0.00% | −131−32.8% | Reduced |
| Versant Capital Management, Inc | 325 | $5.44K | 0.00% | +271+501.9% | Added |
| Aster Capital Management (DIFC) Ltd | 355 | $5.94K | 0.00% | +355 | New |
| Farther Finance Advisors, LLC | 375 | $6.27K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 545 | $9.00K | 0.00% | −253−31.7% | Reduced |
| The PNC Financial Services Group, Inc. | 686 | $11.5K | 0.00% | −1,268−64.9% | Reduced |
| Byrne Asset Management LLC | 760 | $12.7K | 0.01% | +40+5.6% | Added |
| US Bancorp | 799 | $13.4K | 0.00% | −312−28.1% | Reduced |
| Advisor Group Holdings, Inc. | 847 | $14.2K | 0.00% | −1,146−57.5% | Reduced |
| Signaturefd, LLC | 901 | $15.1K | 0.00% | −436−32.6% | Reduced |
| Russell Investments Group, Ltd. | 995 | $16.6K | 0.00% | −756−43.2% | Reduced |
| Nisa Investment Advisors, LLC | 1,215 | $20.3K | 0.00% | +174+16.7% | Added |
| Quadrant Capital Group LLC | 1,383 | $23.1K | 0.00% | +997+258.3% | Added |
| Danske Bank A/S | 1,400 | $23.4K | 0.00% | +1,400 | New |
| Amalgamated Bank | 1,440 | $24.0K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 1,945 | $39.0K | 0.00% | +340+21.2% | Added |
| Headlands Technologies LLC | 2,472 | $41.4K | 0.00% | +797+47.6% | Added |
| Virtus ETF Advisers LLC | 4,315 | $72.2K | 0.03% | +79+1.9% | Added |
| Ameritas Investment Partners, Inc. | 4,368 | $73.1K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 5,457 | $91.3K | 0.00% | −1,533−21.9% | Reduced |
| Simplex Trading, LLC | 5,977 | $99.0K | 0.00% | +3,710+163.7% | Added |
| Public Employees Retirement Association of Colorado | 6,552 | $110.0K | 0.00% | 00.0% | Unchanged |
| Catalyst Funds Management Pty Ltd | 6,700 | $112.1K | 0.02% | +1,600+31.4% | Added |
| Group One Trading, L.P. | 7,434 | $124.4K | 0.00% | +1,201+19.3% | Added |
| Systematic Financial Management LP | 8,125 | $135.9K | 0.00% | −185,638−95.8% | Reduced |
| Royal Bank of Canada | 8,894 | $148.0K | 0.00% | +190+2.2% | Added |
| Arizona State Retirement System | 10,064 | $168.4K | 0.00% | +288+2.9% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 10,236 | $171.2K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 10,344 | $173.1K | 0.02% | +4,026+63.7% | Added |
| Two Sigma Investments, LP | 10,507 | $175.8K | 0.00% | −61,052−85.3% | Reduced |
| STRS Ohio | 11,200 | $187.4K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 11,212 | $187.6K | 0.00% | +11,212 | New |
| Intech Investment Management LLC | 12,555 | $210.0K | 0.00% | +12,555 | New |
| Profund Advisors LLC | 12,661 | $211.8K | 0.01% | −5,412−29.9% | Reduced |
| Qube Research & Technologies Ltd | 13,320 | $222.8K | 0.00% | +13,320 | New |
| Amundi | 13,686 | $228.4K | 0.00% | −2,213−13.9% | Reduced |
| Voya Investment Management LLC | 13,957 | $233.5K | 0.00% | −16,915−54.8% | Reduced |
| Teachers Retirement System of the State of Kentucky | 14,039 | $235.0K | 0.00% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 14,087 | $236.0K | 0.00% | −40,485−74.2% | Reduced |
| New York State Common Retirement Fund | 14,279 | $238.9K | 0.00% | −4,100−22.3% | Reduced |
| HSBC Holdings PLC | 15,078 | $245.0K | 0.00% | +15,078 | New |
| State Board of Administration of Florida Retirement System | 15,386 | $257.4K | 0.00% | 00.0% | Unchanged |
| Handelsbanken Fonder AB | 15,400 | $258.0K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 15,564 | $260.4K | 0.02% | +15,564 | New |
| HighMark Wealth Management LLC | 16,502 | $276.1K | 0.15% | 00.0% | Unchanged |
| DekaBank Deutsche Girozentrale | 14,000 | $277.0K | 0.00% | 00.0% | Unchanged |
| Brinker Capital Investments, LLC | 17,531 | $293.3K | 0.00% | +739+4.4% | Added |
| Orion Portfolio Solutions, LLC | 17,531 | $293.3K | 0.00% | +739+4.4% | Added |
| Schroder Investment Management Group | 15,000 | $300.8K | 0.00% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 18,047 | $301.3K | 0.00% | −1,008,511−98.2% | Reduced |
| American Century Companies Inc | 18,302 | $306.2K | 0.00% | +18,302 | New |
| Brevan Howard Capital Management LP | 20,573 | $344.2K | 0.02% | −1,248−5.7% | Reduced |
| Creative Planning | 20,907 | $349.8K | 0.00% | +20,907 | New |
| Ensign Peak Advisors, Inc | 21,643 | $362.1K | 0.00% | 00.0% | Unchanged |
| Corebridge Financial, Inc. | 22,736 | $380.4K | 0.00% | −140−0.6% | Reduced |
| Edgewood Management LLC | 24,060 | $402.5K | 0.00% | 00.0% | Unchanged |
| Cresset Asset Management, LLC | 24,425 | $408.6K | 0.00% | −3,873−13.7% | Reduced |
| MetLife Investment Management | 25,337 | $423.9K | 0.00% | 00.0% | Unchanged |
| Dynamic Technology Lab Private Ltd | 25,764 | $432.0K | 0.05% | +25,764 | New |
| Mirae Asset Global ETFs Holdings Ltd. | 25,718 | $438.4K | 0.00% | +914+3.7% | Added |
| State of Wisconsin Investment Board | 27,401 | $458.4K | 0.00% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 27,531 | $460.6K | 0.01% | +736+2.7% | Added |
| Sherbrooke Park Advisers LLC | 27,582 | $461.4K | 0.11% | +27,582 | New |
| Gsa Capital Partners LLP | 28,941 | $484.0K | 0.04% | +28,941 | New |
| Citigroup Inc | 32,074 | $536.6K | 0.00% | +7,410+30.0% | Added |
| Jump Financial, LLC | 32,407 | $542.2K | 0.01% | −10,393−24.3% | Reduced |
| Deutsche Bank AG | 32,458 | $543.0K | 0.00% | +4,904+17.8% | Added |
| California State Teachers Retirement System | 33,562 | $561.5K | 0.00% | −1,206−3.5% | Reduced |