# Protagonist Therapeutics Inc (PTGX) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 74366E102
Page URL: https://superinvestorclub.com/stock/PTGX
Last updated: 2026-08-29T13:46:06.760Z

## Summary

As of the most recent 13F filing period, Protagonist Therapeutics Inc (PTGX) is held by 3 tracked superinvestors with an aggregate position value of $29.5M representing 0208900226519269 shares.

## Top institutional holders (3)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Stanley Druckenmiller](https://superinvestorclub.com/manager/19) | Duquesne Family Office | 208900 | $25.6M | 0.49% | 2026-06-30 |
| 2 | [Polen Capital](https://superinvestorclub.com/manager/271) | Polen Capital Management | 22651 | $2.8M | 0.02% | 2026-06-30 |
| 3 | [Ray Dalio](https://superinvestorclub.com/manager/6) | Bridgewater Associates | 9269 | $1.1M | 0.00% | 2026-06-30 |

## Ownership history (quarter-over-quarter)

- 2023-06-30: 1 holders, $348,343 aggregate, 012612 shares
- 2023-09-30: 1 holders, $230,051 aggregate, 013792 shares
- 2023-12-31: 1 holders, $276,673 aggregate, 012066 shares
- 2024-03-31: 1 holders, $354,161 aggregate, 012242 shares
- 2024-06-30: 1 holders, $424,185 aggregate, 012242 shares
- 2025-06-30: 1 holders, $884,265 aggregate, 015999 shares
- 2025-09-30: 2 holders, $12.0M aggregate, 015970020325 shares
- 2025-12-31: 2 holders, $15.7M aggregate, 015970020349 shares
- 2026-03-31: 3 holders, $20.0M aggregate, 0159700243375276 shares
- 2026-06-30: 3 holders, $29.5M aggregate, 0208900226519269 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "Protagonist Therapeutics Inc (PTGX) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/PTGX), aggregating SEC 13F, Form 4, and congressional disclosures."