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Ambrose Allison

3 Form 4 · free tier: 48h delay

Recent Form 4 slice from EDGAR — up to 30 filings (not a full archive).

For informational purposes only. Not investment advice. Data is aggregated from public SEC and congressional disclosures. Nothing on this site is a recommendation to buy or sell any security. Public disclosure of a trade is not evidence of wrongdoing or insider trading.

Recent Form 4 trades

Open-market purchases and sales

3 tx · 3 groups

Upstream Bio, Inc.

UPB · Trade · Sep 16, 2026 · Filed · Sep 17, 2026

$2,663

485 sh

Sell

Upstream Bio, Inc.

UPB · Trade · Jun 16, 2026 · Filed · Jun 17, 2026

$2,910

477 sh

Sell

Upstream Bio, Inc.

UPB · Trade · Mar 16, 2026 · Filed · Mar 17, 2026

$4,413

475 sh

Sell