BARRETT MICHAEL G.

PrivateCIK: 1100612
Location

PLAYA VISTA, CA

Senior insider sale

President and CEO at MAGNITE, INC. — senior position signals high conviction

$13.64M

686.16K shares

What this filing means

BARRETT MICHAEL G. plans to sell 686.16K shares of MAGNITE, INC. valued at approximately $13.64M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderBARRETT MICHAEL G.CIK 1100612
IssuerMAGNITE, INC.CIK 1595974
DirectorOfficer· President and CEO
Since Aug 2018
686.16K
Shares to sell
$13.64M
Approx. market value
293.97K
Acquired (3 months)
1
Planned
4 completed
Securities Acquired — Last 3 Months1
Sort

Stock Option Exercise

Cash

8/6/2026
293.97K
Total acquired293.97K
Planned & Completed Dispositions5
Sort

Completed

Completed

Units to sell

38.60K

Market value

$785.5K

7/15/2026
Completed

Units to sell

75K

Market value

$1.46M

6/29/2026
Completed

Units to sell

100K

Market value

$1.75M

6/16/2026
Completed

Units to sell

178.60K

Market value

$2.96M

6/15/2026

Planned — Approximate Date

NASDAQPlanned

Units to sell

293.97K

Market value

$6.68M

8/6/2026
Total

Units

686.16K

Value

$13.64M