Form 4 for NBP NovaBridge Biosciences
Accepted 2026-09-01 18:00:08 ET · period of report 2026-08-30 · accession 0002114309-26-000007 · 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 | 2026-09-01 18:00 | 2026-08-30 | NBP | Xu Cong Claire | EVP, Clinical Development | M - OptEx | — | +9,382 | 307.5K | +3% | — |
| D | 2026-09-01 18:00 | 2026-08-31 | NBP | Xu Cong Claire | EVP, Clinical Development | S - Sale+OE | $0.79 | -3,282 | 304.2K | -1% | -$2,593 |
| D | 2026-09-01 18:00 | 2026-08-30 | NBP | Xu Cong Claire | EVP, Clinical Development | M - OptEx | $0.00 | -4,079 | 28.6K | -12% | $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 | 2026-08-30 | M | A | 9,382 | — | 307,483 | 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 4,079 ADSs. (F3) Each restricted stock unit ("RSU") represents a contingent right to receive one ADS. (F4) Reported securities are represented by 133,688 ADSs. |
| 2 | Common | Ordinary Shares | 2026-08-31 | S | D | 3,282 | $0.79 | 304,201 | D | — | — | (F1) The Ordinary Shares may be represented by American Depositary Shares ("ADS"). Each 10 ADSs represent 23 Ordinary Shares of the Issuer. (F5) Reported securities are represented by 1,427 ADSs. (F6) Reported sales price represents the converted sales price of the ADSs of $1.8186. (F7) Reported securities are represented by 132,261 ADSs. |
| 3 | Derivative | Restricted Share Units | 2026-08-30 | M | D | 4,079 | $0.00 | 28,558 | D | — · — to — | 4,079 Ordinary Shares | (F3) Each restricted stock unit ("RSU") represents a contingent right to receive one ADS. (F8) Reported securities represent ADSs. (F9) On May 30, 2024, the Reporting Person was granted 65,270 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 30th day of each third month. (F9) On May 30, 2024, the Reporting Person was granted 65,270 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 30th 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. (F8) Reported securities represent ADSs. |