Allison Ambrose

UPB

Allison Ambrose serves as officer: General Counsel at Upstream Bio, Inc. (UPB). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

3 trades

$10.0K

Net Position

Net Seller

$10.0K

Companies Traded

UPB

Active Period

Mar 2026 – Sep 2026

3 total trades

Most Recent

Sell UPB

Sep 17, 2026 · $2.7K

Allison Ambrose's Insider Trading at Upstream Bio, Inc. (UPB)

Buys

0 · $0.00

Sells

3 · $10.0K

Total Shares Bought

Total Shares Sold

1,437

UPB Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Sep 17, 2026	Sell	485	$5.49	$2.7K	15,563
Jun 17, 2026	Sell	477	$6.10	$2.9K	16,048
Mar 17, 2026	Sell	475	$9.29	$4.4K	16,525

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