Spillane Robert F

SEC Form 4 insider trading activity

Spillane Robert F has filed 4 SEC Form 4 filings (5 transaction rows) across 1 company, with disclosures dating back to 2025. 4 of those filings fall inside the rolling window. Most recent filing: Sep 16, 2026.

On the most recent filing, Spillane Robert F is listed as Director at MAGNITE, INC. Inside the rolling window, Spillane Robert F reported no open-market purchases and 3 open-market sales totaling $557K in MGNI. The largest disclosed transaction in the window is a sale of 10,363 MGNI shares on Sep 14, 2026, worth $246K.

Companies traded

Other insiders at MGNI

Insider Buying

$0

reported purchases (SEC code P)

Insider Selling

$557K

reported sales (SEC code S)

Companies

1

in the rolling window

Source
MGNISale$246KSep 16SEC ↗
MGNISale$133KMay 21SEC ↗
MGNISale$178KNov 21SEC ↗
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Frequently asked questions

How many SEC Form 4 filings has Spillane Robert F made?

Spillane Robert F has filed 4 SEC Form 4 filings (5 transaction rows) across 1 company since 2025.

Which companies does Spillane Robert F trade?

Spillane Robert F has filed SEC Form 4 disclosures for 1 company, including MGNI.

When was Spillane Robert F's most recent SEC Form 4 filing?

Spillane Robert F's most recent SEC Form 4 filing on Tracefour is dated Sep 16, 2026.

What is Spillane Robert F's total buy and sell value in the current window?

Inside the rolling retention window, Spillane Robert F bought $0 and sold $557K based on SEC Form 4 filings.

What was Spillane Robert F's largest disclosed transaction?

The largest disclosed transaction in the current window is a sale of 10,363 MGNI shares on 2026-09-14, worth $246K, per SEC Form 4 filings.