Form 4 for NBP NovaBridge Biosciences
Accepted 2026-09-08 17:51:01 ET · period of report 2026-09-03 · accession 0002109966-26-000006 · 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 | 2026-09-08 17:51 | 2026-09-03 | NBP | Cao Sean Wuxiong | Chief Bus. Development Off | M - OptEx | — | +339.4K | 374.4K | +968% | — |
| DM | 2026-09-08 17:51 | 2026-09-03 | NBP | Cao Sean Wuxiong | Chief Bus. Development Off | M - OptEx | $0.00 | -147.6K | 136.0K | -52% | $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 | 2026-09-03 | M | A | 235,136 | — | 270,209 | D | — | — | (F1) The Ordinary Shares may be represented by American Depositary Shares ("ADS"). Each 10 ADSs represent 23 Ordinary Shares of the Issuer. (F2) Reported securities are represented by 102,233 ADSs (F3) Each restricted stock unit ("RSU") represents a contingent right to receive one ADS. |
| 2 | Common | Ordinary Shares | 2026-09-03 | M | A | 104,236 | — | 374,445 | D | — | — | (F1) The Ordinary Shares may be represented by American Depositary Shares ("ADS"). Each 10 ADSs represent 23 Ordinary Shares of the Issuer. (F4) Reported securities are represented by 45,320 ADSs. (F3) Each restricted stock unit ("RSU") represents a contingent right to receive one ADS. |
| 3 | Derivative | Restricted Share Units | 2026-09-03 | M | D | 102,233 | $0.00 | 306,700 | D | — · — to — | 102,233 Ordinary Shares | (F3) Each restricted stock unit ("RSU") represents a contingent right to receive one ADS. (F5) On September 3, 2025, the Reporting Person was granted 408,933 RSUs. The RSUs vested or shall vest over four years, with one-fourth vesting on the first anniversary of the grant date and the balance vesting ratably over the subsequent 12 quarters on the third day of each third month. (F5) On September 3, 2025, the Reporting Person was granted 408,933 RSUs. The RSUs vested or shall vest over four years, with one-fourth vesting on the first anniversary of the grant date and the balance vesting ratably over the subsequent 12 quarters on the third day of each third month. (F1) The Ordinary Shares may be represented by American Depositary Shares ("ADS"). Each 10 ADSs represent 23 Ordinary Shares of the Issuer. |
| 4 | Derivative | Restricted Share Units | 2026-09-03 | M | D | 45,320 | $0.00 | 135,960 | D | — · — to — | 45,320 Ordinary Shares | (F3) Each restricted stock unit ("RSU") represents a contingent right to receive one ADS. (F6) On June 22, 2026, the Reporting Person was granted 181,280 RSUs. The RSUs vested or shall vest over four years, with one-fourth vesting on September 3, 2026 and the balance vesting ratably over the subsequent 12 quarters on the third day of each third month. (F6) On June 22, 2026, the Reporting Person was granted 181,280 RSUs. The RSUs vested or shall vest over four years, with one-fourth vesting on September 3, 2026 and the balance vesting ratably over the subsequent 12 quarters on the third day of each third month. (F1) The Ordinary Shares may be represented by American Depositary Shares ("ADS"). Each 10 ADSs represent 23 Ordinary Shares of the Issuer. |