David Buonasera Insider Trades & Stock Holdings

CHIEF TECHNOLOGY OFFICER · MGNI · Latest filing Jun 17, 2026

David Buonasera, CHIEF TECHNOLOGY OFFICER at MGNI has 4 Form 4 trades on file since Jun 16, 2026. Open-market activity: 0 purchases ($0) and 4 sales ($457.93K), net -$457.93K. Latest filing: disposed of 1.41K shares of $MGNI on Jun 17, 2026 at $19.

Trades on file

4

Open-market bought

$0

Open-market sold

$457.93K

Net open-market

-$457.93K

Latest filing

Jun 17, 2026

All insider trades by David Buonasera

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Jun 17, 2026	$MGNI	Sell (Open-market sale) 10b5-1	1.41K	$19	$26.77K			+0.3%	+4.2%		CHIEF TECHNOLOGY OFFICER		—
Jun 17, 2026	$MGNI	Sell (Open-market sale) 10b5-1	1.41K	$19	$26.77K			+0.3%	+4.2%		CHIEF TECHNOLOGY OFFICER		—
Jun 16, 2026	$MGNI	Sell (Open-market sale) 10b5-1	11.23K	$18	$202.19K			-3.0%	+7.3%		CHIEF TECHNOLOGY OFFICER		Read
Jun 16, 2026	$MGNI	Sell (Open-market sale) 10b5-1	11.23K	$18	$202.19K			-3.0%	+7.3%		CHIEF TECHNOLOGY OFFICER		Read

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks David Buonasera traded

• $MGNI

Frequently asked questions

Has David Buonasera been buying or selling stock?

David Buonasera has 0 open-market purchases and 4 open-market sales on file, net -$457.93K. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was David Buonasera's latest insider trade?

disposed of 1.41K shares of $MGNI on Jun 17, 2026 at $19.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.