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EdgarHawk

AI Upstream LLC

10% Owner

10% Owner
1 filing analyzed · 1 company · Latest 2024-10-17

Companies

Company Buys Sells Direction
Upstream Bio, Inc. UPB 3 0 Net buying

Activity

October 2024
2024-10-17 Upstream Bio, Inc. UPB
high
Buy
1,175,000 shares
$19,975,000
Significance 8/10

AI Upstream LLC (10% Owner) purchases 1,175,000 shares of UPB at $17.00 on 2024-10-15; cluster buy pattern with 2 other insiders in past 14 days post-IPO.

AI Upstream LLC, a 10% shareholder, acquired 1,175,000 shares for $19,975,000.00 on 2024-10-15, five trading days after UPB's recent listing. This purchase increased the insider's position from 4,319,410 shares to 5,494,410 shares, a +27.2% addition. The buy occurs alongside a cluster pattern: 2 other insiders also purchased shares within the past 14 days. In a newly listed company with minimal trading history, multiple insider purchases within a tight window indicate continued inside confidence in the business following public debut. The transaction is a conversion of derivative securities (Form 4 Table II), so this represents a partial exercise/reallocation of existing derivative holdings rather than a discretionary open-market acquisition from outside capital.

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