# PROTHENA CORP PLC (PRTA)

> Institutional ownership reported to the SEC as of Q3 2026, from Form 13F filings. Source: https://holderbook.com/stocks/PRTA/

- Reporting holders: 4
- Reported value: $90.1K
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [Versant Capital Management, Inc](https://holderbook.com/funds/1735057-versant-capital-management-inc/) | $47.8K | 5,704 | 0.0% | 10 |
| [Farther Finance Advisors, LLC](https://holderbook.com/funds/1992825-farther-finance-advisors-llc/) | $23.3K | 2,786 | 0.0% | 16 |
| [GAMMA Investing LLC](https://holderbook.com/funds/2010235-gamma-investing-llc/) | $18.8K | 2,246 | 0.0% | 12 |
| [CoreCap Advisors, LLC](https://holderbook.com/funds/1902501-corecap-advisors-llc/) | $92 | 11 | 0.0% | 11 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q3 2026 | 4 | $90.1K |
| Q2 2026 | 192 | $532.9M |
| Q1 2026 | 186 | $466.8M |
| Q4 2025 | 182 | $466.9M |
| Q3 2025 | 189 | $451.7M |
| Q2 2025 | 194 | $267.5M |
| Q1 2025 | 166 | $652.1M |
| Q4 2024 | 175 | $758.6M |
| Q3 2024 | 164 | $869.0M |
| Q2 2024 | 161 | $1.1B |
| Q1 2024 | 168 | $1.4B |
| Q4 2023 | 195 | $2.1B |