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Insider · CIK 0002047381

Ambrose Allison

Reports to the SEC for 1 company · WALTHAM, MA

Transactions

7

Companies

1

Filings

6

CIK

0002047381

Forms 4 and 5

Insider transactions

7 trades
DateCompanyValue
2026-09-16UPBUpstream Bio, Inc.S Sale−$2,662.65
2026-06-16UPBUpstream Bio, Inc.S Sale−$2,909.7
2026-03-16UPBUpstream Bio, Inc.S Sale−$4,412.75
2026-01-02UPBUpstream Bio, Inc. · Stock Option (Right to Buy)A Award—
2026-01-02UPBUpstream Bio, Inc.A Award—
2025-02-06UPBUpstream Bio, Inc. · Stock Option (Right to Buy)A Award—
2024-12-16UPBUpstream Bio, Inc. · Stock Option (Right to Buy)A Award—

Recent filings

6

Companies

1

Address

UPSTREAM BIO, INC. 890 WINTER STREET, SUITE 200

WALTHAM, MA, 02451