Gephart Brian
CHIEF FINANCIAL OFFICER
Gephart Brian has filed 8 SEC Form 4 filings (8 transaction rows) across 1 company, with disclosures dating back to 2025. 7 of those filings fall inside the rolling window. Most recent filing: Oct 2, 2026.
On the most recent filing, Gephart Brian is listed as CHIEF ACCOUNTING OFFICER at MAGNITE, INC. Inside the rolling window, Gephart Brian reported no open-market purchases and 1 open-market sale totaling $308K in MGNI.
Companies traded
Other insiders at MGNI
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$308K
reported sales (SEC code S)
Companies
1
in the rolling window
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Sep 4, 2025 | MGNI | Sale | $684K |
Frequently asked questions
How many SEC Form 4 filings has Gephart Brian made?
Gephart Brian has filed 8 SEC Form 4 filings (8 transaction rows) across 1 company since 2025.
Which companies does Gephart Brian trade?
Gephart Brian has filed SEC Form 4 disclosures for 1 company, including MGNI.
When was Gephart Brian's most recent SEC Form 4 filing?
Gephart Brian's most recent SEC Form 4 filing on Tracefour is dated Oct 2, 2026.
What is Gephart Brian's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Gephart Brian is listed as CHIEF FINANCIAL OFFICER.
What is Gephart Brian's total buy and sell value in the current window?
Inside the rolling retention window, Gephart Brian bought $0 and sold $308K based on SEC Form 4 filings.
What was Gephart Brian's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 12,479 MGNI shares on 2026-08-10, worth $308K, per SEC Form 4 filings.