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$UPB All transactions

Upstream Bio, Inc.

A

$ Value

$0

Shares

17,096

Price

$0

Filed

Jun 12

Insider

Name

Chimovits Erez

Title

CIK

0001706399

Roles

Director

Transaction Details

Transaction Date

2025-06-10

Code

A

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

17,096

Footnotes

The shares underlying this option shall vest upon the earlier of (i) June 10, 2026 and (ii) the date of the next Annual Meeting of Stockholders of the Issuer, subject to the Reporting Person's continued service on such vesting date. | Pursuant to an agreement with OrbiMed Advisors LLC, OrbiMed Capital GP VIII LLC, OrbiMed Israel GP II, L.P., and OrbiMed Advisors Israel II Limited, the Reporting Person is obligated to transfer any securities issued under any such stock options or other awards, or the economic benefit thereof, to OrbiMed Advisors LLC, OrbiMed Capital GP VIII LLC, OrbiMed Israel GP II, L.P., and OrbiMed Advisors Israel II Limited, which will in turn ensure that such securities or economic benefits are provided to OrbiMed Private Investments VIII, LP and OrbiMed Israel Partners II, L.P.

Filing Info

Accession No.

0000950170-25-085371

Form Type

4

Issuer CIK

0002022626

Chimovits Erez's History

Date Ticker Type Value
2025-06-10 UPB A $0

Other Insiders at UPB (90d)

No other insider activity at this issuer in the last 90 days.