Companies / Protagonist Therapeutics Inc
Protagonist Therapeutics Inc
Nasdaq: PTGXCIK 1377121NEWARK, CA
Financials
Ownership
64.7M shares outstanding · as of Jul 31, 2026
Ownership
| Insiders | 1.18% | 763,611 |
| 10%+ / strategic | 23.98% | 15,518,262 |
| Institutions | 97.98% | 63,401,852 |
| Public float | 0.00% | 0 |
Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 8
View all →| Insider | % of shares | Shares |
|---|---|---|
Patel Dinesh V Ph DCEOPresident and CEO · Director | 0.81% | 523,478 |
Molina Arturo MdChief Medical Officer | 0.13% | 84,115 |
Selick Harold EDirector | 0.09% | 60,845 |
Ali AsifChief Financial Officer | 0.09% | 59,003 |
Giraudo BryanDirector | 0.02% | 12,695 |
O'Dowd Sarah ADirector | 0.01% | 7,825 |
Waddill William D.Director | 0.01% | 7,825 |
Williams Lewis TDirector | 0.01% | 7,825 |
Institutional holders 332
View all →| Holder | Value | % of shares |
|---|---|---|
| $1.26B | 15.93% | |
| $536.62M | 9.49% | |
| $472.83M | 8.37% | |
| $441.86M | 7.82% | |
| $407.16M | 5.13% | |
| $304.87M | 4.47% | |
| $276.99M | 4.90% | |
| $241.93M | 4.28% | |
| $213.91M | 3.78% | |
| $175.98M | 2.58% |
Activity
InsidersInstitutions
What insiders are doing in this stock (Form 4).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| May 12, 2026 | Patel Dinesh V Ph D CEO | Sell | Common Stock | $7.51M | -75K -12.53% | 523,478 0.81% of shares | medium |
| May 12, 2026 | Patel Dinesh V Ph D CEO | Sell | Common Stock | $7.51M | -75K -12.53% | 523,478 0.81% of shares | medium |
| Mar 25, 2026 | Patel Dinesh V Ph D CEO | Sell | Common Stock | $5.52M | -55K -9.43% | 524,938 0.81% of shares | medium |
| May 7, 2026 | Giraudo Bryan Director | Sell | Common Stock | $3.61M | -36K -56.40% | 27,825 0.04% of shares | medium |
| Jan 20, 2026 | Patel Dinesh V Ph D CEO | Sell | Common Stock | $2.84M | -34K -5.60% | 580,505 0.90% of shares | medium |
| Mar 26, 2026 | Ali Asif Executive | Sell | Common Stock | $2.58M | -25K -28.96% | 60,753 0.09% of shares | medium |
| Mar 26, 2026 | Selick Harold E Director | Sell | Common Stock | $2.52M | -24K -28.29% | 60,845 0.09% of shares | medium |
| Jan 27, 2026 | Ali Asif Executive | Sell | Common Stock | $2.33M | -28K -26.29% | 78,523 0.12% of shares | medium |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| State Street Corporation | Passive13G | — |
| Vanguard Group Inc | Passive13G/A | — |
| Farallon Capital Partners, L.P. | Passive13G/A | — |
| RTW Investments, LP | Passive13G/A | — |
| Wellington Management Group LLP | Passive13G | — |
| Vanguard Portfolio Management | Passive13G | — |
| Vanguard Capital Management | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| PTGX | — | 74366E102 |