Ambrose Allison
General Counsel
Ambrose Allison has filed 4 SEC Form 4 filings (4 transaction rows) across 1 company, with disclosures dating back to 2026. 4 of those filings fall inside the rolling window. Most recent filing: Sep 17, 2026.
On the most recent filing, Ambrose Allison is listed as General Counsel at Upstream Bio, Inc. Inside the rolling window, Ambrose Allison reported no open-market purchases and 3 open-market sales totaling $10K in UPB. The largest disclosed transaction in the window is a sale of 475 UPB shares on Mar 16, 2026, worth $4K.
Companies traded
Other insiders at UPB
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$10K
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Ambrose Allison made?
Ambrose Allison has filed 4 SEC Form 4 filings (4 transaction rows) across 1 company since 2026.
Which companies does Ambrose Allison trade?
Ambrose Allison has filed SEC Form 4 disclosures for 1 company, including UPB.
When was Ambrose Allison's most recent SEC Form 4 filing?
Ambrose Allison's most recent SEC Form 4 filing on Tracefour is dated Sep 17, 2026.
What is Ambrose Allison's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Ambrose Allison is listed as General Counsel.
What is Ambrose Allison's total buy and sell value in the current window?
Inside the rolling retention window, Ambrose Allison bought $0 and sold $10K based on SEC Form 4 filings.
What was Ambrose Allison's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 475 UPB shares on 2026-03-16, worth $4K, per SEC Form 4 filings.