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Barrett Michael G.

In the past year, 4 open-market sale filings worth $13.6M and no purchases.

Current role at each company

Open-market trades in the past year

Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.

Bought
–
0 filings
Sold
$13.6M
4 filings
Net
−$13.6M
Bought minus sold
Companies
1
With open-market trades

Trades

Every Form 4 that lists Barrett Michael G. as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.

MGNI Magnite, Inc.

CEO25 trades

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Aug 7, 2026 (view filing)5:00 PM ETAug 61 dayBarrett Michael G.CEOSSale−294.0K$22.72−$6.68M−42.2%403.1K after10b5-1
Jul 17, 2026 (view filing)5:00 PM ETJul 152 daysBarrett Michael G.CEOSSale−38.6K$20.35−$785.4K−8.7%403.1K after10b5-1
Jul 1, 2026 (view filing)4:49 PM ETJun 292 daysBarrett Michael G.CEOSSale−75.0K$19.50−$1.46M−15.7%403.1K after10b5-1
Jun 17, 2026 (view filing)Jun 15-162 daysBarrett Michael G.CEOSSale−278.6K$16.92−$4.71M−40.9%403.1K after2 lots10b5-1
Aug 20, 2025 (view filing)Aug 182 daysBarrett Michael G.CEOSSale−36.0K$23.85−$857.4K−12.6%249.9K after
Jul 17, 2025 (view filing)Jul 152 daysBarrett Michael G.CEOSSale−70.9K$23.27−$1.65M−19.9%285.8K after10b5-1
Jun 26, 2025 (view filing)Jun 242 daysBarrett Michael G.CEOSSale−300.0K$20.01−$6.00M−45.7%356.7K after10b5-1
Jun 18, 2025 (view filing)Jun 16-182 daysBarrett Michael G.CEOSSale−75.0K$18.26−$1.37M−10.2%656.7K after2 lots10b5-1
Dec 6, 2024 (view filing)Dec 42 daysBarrett Michael G.CEOSSale−148.0K$17.52−$2.59M−18.9%634.9K after10b5-1
Nov 27, 2024 (view filing)Nov 252 daysBarrett Michael G.CEOSSale−27.0K$17.63−$476.1K−3.3%782.9K after10b5-1

See all 25 trades at MGNI