Key facts
- This page summarizes Robert A. Lenz's Form 4 filing for NovaBridge Biosciences (NBP).
- 2 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 25 Aug 2026, 16:15.
Robert A. Lenz - 22 Aug 2026 Form 4 Insider Report for NovaBridge Biosciences (NBP)
- Reporting relationship
- Director
- Issuer ticker
- NBP
- Reported as of
- 22 Aug 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 25 Aug 2026, 16:15:13 UTC
- Prior SEC filing
- 05 Jun 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/Kyler Lei, Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Robert A. Lenz filed Form 4 for NovaBridge Biosciences (NBP) on 25 Aug 2026.
Change
- Previous filing in this sequence was filed on 05 Jun 2026.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001992908
Primary reporting owner
Lenz Robert A.
- Relationship
- Director
- Address
- C/O NOVABRIDGE BIOSCIENCES, 2440 RESEARCH BOULEVARD, SUITE 400, ROCKVILLE
- Signature
- /s/Kyler Lei, Attorney-in-Fact
- Signature date
- 25 Aug 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
NBP
transaction
Ordinary Shares
Options Exercise
- Transaction value
- Shares
- +17,218
- Change %
- Price
- Shares after
- 17,218
- Date
- 22 Aug 2026
- Ownership
- Direct
- Footnotes
- F1, F2, F3
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
NBP
transaction
Derivative
Restricted Share Units
Options Exercise
- Transaction value
- Shares
- -7,486
- Change %
- -33%
- Price
- $0.000000*
- Shares after
- 14,974
- Date
- 22 Aug 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 7,486
- Exercise price
- Footnotes
- F3, F4, F5
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 5 footnotes
Footnote F1
The Ordinary Shares may be represented by American Depositary Shares ("ADS"). Each 10 ADSs represent 23 Ordinary Shares of the Issuer.
Footnote F2
Reported securities are represented by 7,486 ADSs.
Footnote F3
Each restricted stock unit ("RSU") represents a contingent right to receive one ADS.
Footnote F4
Reported securities represent ADSs.
Footnote F5
On August 22, 2025, the Reporting Person was granted 22,460 restricted share units ("RSUs"). The RSUs vested or shall vest over three years in three equal annual installments on August 22, 2026, 2027 and 2028.