Humpton Barbara
Former Chief Executive Officer
Humpton Barbara has filed 2 SEC Form 4 filings (5 transaction rows) across 2 companies, including USAR, MARA, with disclosures dating back to 2026. 2 of those filings fall inside the rolling window. Most recent filing: Oct 6, 2026.
On the most recent filing, Humpton Barbara is listed as Former Chief Executive Officer at USA Rare Earth, Inc. Inside the rolling window, Humpton Barbara reported no open-market purchases and 1 open-market sale totaling $1.2M in USAR.
Companies traded
Other insiders at USAR
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$1.2M
reported sales (SEC code S)
Companies
2
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Humpton Barbara made?
Humpton Barbara has filed 2 SEC Form 4 filings (5 transaction rows) across 2 companies, including USAR, MARA since 2026.
Which companies does Humpton Barbara trade?
Humpton Barbara has filed SEC Form 4 disclosures for 2 companies, including USAR, MARA.
When was Humpton Barbara's most recent SEC Form 4 filing?
Humpton Barbara's most recent SEC Form 4 filing on Tracefour is dated Oct 6, 2026.
What is Humpton Barbara's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Humpton Barbara is listed as Former Chief Executive Officer.
What is Humpton Barbara's total buy and sell value in the current window?
Inside the rolling retention window, Humpton Barbara bought $0 and sold $1.2M based on SEC Form 4 filings.
What was Humpton Barbara's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 88,391 USAR shares on 2026-10-02, worth $1.2M, per SEC Form 4 filings.