Form 4 for PRTA PROTHENA CORP PUBLIC LTD CO
Accepted 2026-07-30 20:33:45 ET · period of report 2026-07-28 · accession 0000905148-26-003415 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-07-30 20:33 | 2026-07-28 | PRTA | Swanson Chad J. | Chief Development Off | M - OptEx | — | +51.0K | 85.0K | +150% | — |
| D | 2026-07-30 20:33 | 2026-07-28 | PRTA | Swanson Chad J. | Chief Development Off | D - Sale to Iss | $8.56 | -40.8K | 44.2K | -48% | -$349.2K |
| D | 2026-07-30 20:33 | 2026-07-28 | PRTA | Swanson Chad J. | Chief Development Off | F - Tax | $8.56 | -3,467 | 40.7K | -8% | -$29.7K |
| D | 2026-07-30 20:33 | 2026-07-28 | PRTA | Swanson Chad J. | Chief Development Off | M - OptEx | $0.00 | -51.0K | 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 | Ordinary Shares, par value $0.01 per share | 2026-07-28 | M | A | 51,000 | — | 85,000 | D | — | — | (F1) Each restricted stock unit ("RSU") represents the contingent right to receive one share of the Issuer's Ordinary Shares upon vesting. |
| 2 | Common | Ordinary Shares, par value $0.01 per share | 2026-07-28 | D | D | 40,800 | $8.56 | 44,200 | D | — | — | |
| 3 | Common | Ordinary Shares, par value $0.01 per share | 2026-07-28 | F | D | 3,467 | $8.56 | 40,733 | D | — | — | |
| 4 | Derivative | Restricted Stock Units | 2026-07-28 | M | D | 51,000 | $0.00 | 0 | D | — · — to — | 51,000 Ordinary Shares | (F2) These RSUs reported in Table II were granted to the Reporting Person on July 28, 2025 as part of an aggregate award of 85,000 RSUs and initially reported in Table I of the Form 4 filed on July 30, 2025, because they were solely settleable in shares at the time of grant. These RSUs are being moved to Table II as of this Form 4. (F1) Each restricted stock unit ("RSU") represents the contingent right to receive one share of the Issuer's Ordinary Shares upon vesting. (F3) These RSUs reported in Table II are fully vested as of July 28, 2026 (the one-year anniversary of the grant date). The remainder of the 85,000 RSUs reported in Table I (34,000 RSUs) are subject to vesting. (F3) These RSUs reported in Table II are fully vested as of July 28, 2026 (the one-year anniversary of the grant date). The remainder of the 85,000 RSUs reported in Table I (34,000 RSUs) are subject to vesting. |