PROTHENA CORP PUBLIC LTD CO PRTA
CIK 0001559053 · CUSIP G72800108
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | EcoR1 Capital, LLC CIK 1587114 · View history | $143.36M 11,584,280 shares | 8.51% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2025 | ▾ |
| 02 | FMR LLC CIK 315066 · View history | $98.27M 7,941,402 shares | 0.01% | -129.91K(-1.60%)Reduced | SEC filing ↗ May 12, 2025 | ▾ |
| 03 | WELLINGTON MANAGEMENT GROUP LLP CIK 902219 · View history | $64.34M 5,199,528 shares | 0.01% | +68.65K(+1.30%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 04 | BlackRock, Inc. CIK 2012383 · View history | $50.02M 4,042,301 shares | 0.00% | -80.08K(-1.90%)Reduced | SEC filing ↗ May 2, 2025 | ▾ |
| 05 | PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history | $42.77M 3,455,856 shares | 0.01% | -229.85K(-6.20%)Reduced | SEC filing ↗ May 14, 2025 | ▾ |
| 06 | ARMISTICE CAPITAL, LLC CIK 1601086 · View history | $27.18M 2,196,000 shares | 0.73% | -40.00K(-1.80%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 07 | Palo Alto Investors LP CIK 1306923 · View history | $20.54M 1,659,734 shares | 3.91% | -78.23K(-4.50%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 08 | STATE STREET CORP CIK 93751 · View history | $18.83M 1,521,364 shares | 0.00% | -340.28K(-18.30%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 09 | Siren, L.L.C. CIK 2005245 · Amended · View history | $15.88M 1,283,555 shares | 0.90% | +183.72K(+16.70%)Added | SEC filing ↗ May 23, 2025 | ▾ |
| 10 | VANGUARD GROUP INC CIK 102909 · View history | $15.71M 1,269,271 shares | 0.00% | -134.57K(-9.60%)Reduced | SEC filing ↗ May 9, 2025 | ▾ |
| 11 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $12.56M 1,014,792 shares | 0.00% | +50.48K(+5.20%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 12 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $10.68M 863,148 shares | 0.00% | -1.69K(-0.20%)Reduced | SEC filing ↗ May 13, 2025 | ▾ |
| 13 | MORGAN STANLEY CIK 895421 · View history | $8.91M 719,988 shares | 0.00% | +498(+0.10%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 14 | Boxer Capital Management, LLC CIK 2018299 · Amended · View history | $8.54M 690,000 shares | 2.57% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2025 | ▾ |
| 15 | Finepoint Capital LP CIK 1608126 · View history | $7.92M 640,071 shares | 1.34% | -17.00K(-2.60%)Reduced | SEC filing ↗ May 14, 2025 | ▾ |
| 16 | FEDERATED HERMES, INC. CIK 1056288 · View history | $6.76M 546,255 shares | 0.01% | -199.92K(-26.80%)Reduced | SEC filing ↗ May 8, 2025 | ▾ |
| 17 | GOLDMAN SACHS GROUP INC CIK 886982 · Amended · View history | $6.32M 510,462 shares | 0.00% | -46.06K(-8.30%)Reduced | SEC filing ↗ May 16, 2025 | ▾ |
| 18 | Rock Springs Capital Management LP CIK 1595725 · View history | $6.10M 492,601 shares | 0.35% | -152.00K(-23.60%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 19 | Prosight Management, LP CIK 1617201 · View history | $5.05M 408,122 shares | 1.66% | -10.00K(-2.40%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 20 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC CIK 861177 · View history | $4.72M 381,652 shares | 0.00% | +144(0.00%)Added | SEC filing ↗ May 19, 2025 | ▾ |
Showing 20 / 162 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
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