Ronald C. Renaud Jr. - 10 Oct 2024 Form 3 Insider Report for Upstream Bio, Inc. (UPB)

Role
Director
Signature
/s/ Michael Gray, Attorney-in-Fact
Issuer symbol
UPB
Transactions as of
10 Oct 2024
Net transactions value
$0
Form type
3
Filing time
10 Oct 2024, 20:09:53 UTC
Previous filing
05 Aug 2024
Next filing
12 Jun 2025
SEC
View on sec.gov

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding UPB Stock Option (Right to Buy) 10 Oct 2024 Common Stock 164,502 $3.45 Direct F1
holding UPB Stock Option (Right to Buy) 10 Oct 2024 Common Stock 107,312 $3.45 Direct F2
holding UPB Stock Option (Right to Buy) 10 Oct 2024 Common Stock 9,563 $4.27 Direct F3
holding UPB Stock Option (Right to Buy) 10 Oct 2024 Common Stock 31,470 $4.87 Direct F4
holding UPB Stock Option (Right to Buy) 10 Oct 2024 Common Stock 113,554 $6.59 Direct F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 25% of the shares underlying this option vested on November 17, 2022, with the remainder vesting in thirty-six equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.
F2 25% of the shares underlying this option vested on February 14, 2024, with the remainder vesting in thirty-six equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.
F3 25% of the shares underlying this option vested on March 2, 2024, with the remainder vesting in thirty-six equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.
F4 25% of the shares underlying this option vested on August 10, 2024, with the remainder vesting in thirty-six equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.
F5 25% of the shares underlying this option shall vest on May 5, 2025, with the remainder vesting in thirty-six equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date.

Remarks:

Exhibit 24 - Power of Attorney