Form 4 for PTGX Protagonist Therapeutics, Inc
Accepted 2026-05-11 20:25:57 ET · period of report 2026-05-07 · accession 0001104659-26-058860 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-05-11 20:25 | 2026-05-07 | PTGX | Giraudo Bryan | Dir | M - OptEx | $6.63 | +36.0K | 43.8K | +460% | +$238.6K |
| DM | 2026-05-11 20:25 | 2026-05-07+ | PTGX | Giraudo Bryan | Dir | S - Sale+OE | $100.12 | -41.1K | 12.7K | -76% | -$4.12M |
| DMI | 2026-05-11 20:25 | 2026-05-07+ | PTGX | Giraudo Bryan | Dir | S - Sale+OE | $100.05 | -18.0K | 0 | -100% | -$1.80M |
| DM | 2026-05-11 20:25 | 2026-05-07 | PTGX | Giraudo Bryan | Dir | M - OptEx | $0.00 | -36.0K | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-05-07 | M | A | 24,000 | $6.45 | 31,825 | D | — | — | (F1) Reflects 10,000 shares of common stock that were previously held directly by the Reporting Person and which were transferred to the Bryan & Courtney Giraudo Trust. |
| 2 | Common | Common Stock | 2026-05-07 | M | A | 12,000 | $6.98 | 43,825 | D | — | — | |
| 3 | Common | Common Stock | 2026-05-07 | S | D | 36,000 | $100.14 | 27,825 | D | — | — | (F2) The price reported represents the weighted average sale price per share. The shares were sold in multiple transactions at prices ranging from $98.69 to $104.67. Upon request by the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price. |
| 4 | Common | Common Stock | 2026-05-07 | S | D | 12,000 | $100.07 | 6,000 | I By Bryan & Courtney Giraudo Trust | — | — | (F1) Reflects 10,000 shares of common stock that were previously held directly by the Reporting Person and which were transferred to the Bryan & Courtney Giraudo Trust. |
| 5 | Common | Common Stock | 2026-05-08 | S | D | 6,000 | $100.00 | 0 | I By Bryan & Courtney Giraudo Trust | — | — | |
| 6 | Common | Common Stock | 2026-05-08 | S | D | 5,130 | $100.00 | 12,695 | D | — | — | |
| 7 | Derivative | Stock Option (right to buy) | 2026-05-07 | M | D | 24,000 | $0.00 | 0 | D | $6.45 · — to 2028-05-14 | 24,000 Common Stock | (F3) These stock options are fully vested. |
| 8 | Derivative | Stock Option (right to buy) | 2026-05-07 | M | D | 12,000 | $0.00 | 0 | D | $6.98 · — to 2028-05-28 | 12,000 Common Stock | (F3) These stock options are fully vested. |