Key facts
- This page summarizes Everett Rand Sutherland's Form 4 filing for Upstream Bio, Inc. (UPB).
- 2 reported transactions and 1 derivative row are listed below.
- Accepted by SEC: 06 Jan 2026, 17:15.
Everett Rand Sutherland - 02 Jan 2026 Form 4 Insider Report for Upstream Bio, Inc. (UPB)
- Issuer symbol
- UPB
- Report date
- 02 Jan 2026
- Net transaction value
- $0
- Form type
- 4
- Accepted by SEC
- 06 Jan 2026, 17:15:02 UTC
- Previous filing
- 30 Jun 2025
- Next filing
- 17 Mar 2026
- SEC filing
- View on sec.gov
- Reporting owner signature
- /s/ Allison Ambrose, Attorney-in-Fact
SEC evidence
5 facts
Reporting owner
1 fact
Key filing fact
Everett Rand Sutherland filed Form 4 for Upstream Bio, Inc. (UPB) on 06 Jan 2026.
Change
- Previous filing in this sequence was filed on 30 Jun 2025.
- 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
See Original Filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001852880
Primary reporting owner
Sutherland Everett Rand
- Relationship
- Chief Executive Officer, Director
- Address
- UPSTREAM BIO, INC., 890 WINTER STREET, SUITE 200, WALTHAM
- Signature
- /s/ Allison Ambrose, Attorney-in-Fact
- Signature date
- 06 Jan 2026
Reported transactions
UPB
transaction
Common Stock
Award
- Transaction value
- $0
- Shares
- +75,000
- Change %
- Price
- $0.000000
- Shares after
- 75,000
- Date
- 02 Jan 2026
- Ownership
- Direct
- Footnotes
- F1
Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)
UPB
transaction
Derivative
Stock Option (Right to Buy)
Award
- Transaction value
- $0
- Shares
- +225,000
- Change %
- Price
- $0.000000
- Shares after
- 225,000
- Date
- 02 Jan 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 225,000
- Exercise price
- $27.07
- Footnotes
- F2
* indicates a reported price that failed the local validity check.
Explanation of Responses:
| Id | Content |
|---|---|
| F1 | Represents restricted stock units ("RSUs") granted pursuant to the Issuer's 2024 Stock Option and Incentive Plan. Each RSU represents the contingent right to receive one share of the Issuer's Common Stock upon vesting. The RSUs shall vest in sixteen equal quarterly installments following January 1, 2026, subject to the Reporting Person's continued service on each such vesting date. |
| F2 | The shares underlying this option shall vest in forty-eight equal monthly installments following January 1, 2026, subject to the Reporting Person's continued service on each such vesting date. |