BUONASERA DAVID

PrivateCIK: 1966857
Location

NEW YORK, NY

Senior insider sale

CHIEF TECHNOLOGY OFFICER at MAGNITE, INC. — senior position signals high conviction

$819.2K

39.53K shares

What this filing means

BUONASERA DAVID plans to sell 39.53K shares of MAGNITE, INC. valued at approximately $819.2K. 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.

InsiderBUONASERA DAVIDCIK 1966857
→
IssuerMAGNITE, INC.CIK 1595974
Officer· CHIEF TECHNOLOGY OFFICER
Since Feb 2026
39.53K
Shares to sell
$819.2K
Approx. market value
1.17K
Acquired (3 months)
1
Planned
8 completed
Securities Acquired — Last 3 Months1
Sort

Restricted Stock Units

N/A

8/15/2026
1.17K
Total acquired1.17K
Planned & Completed Dispositions9
Sort

Completed

—Completed

Units to sell

1.04K

Market value

$26.1K

9/2/2026
—Completed

Units to sell

5.37K

Market value

$125.8K

9/1/2026
—Completed

Units to sell

7.65K

Market value

$179.4K

8/6/2026
—Completed

Units to sell

1.22K

Market value

$25.7K

7/7/2026
—Completed

Units to sell

9.38K

Market value

$187.5K

7/1/2026
—Completed

Units to sell

1.41K

Market value

$26.8K

6/17/2026
—Completed

Units to sell

11.23K

Market value

$202.2K

6/16/2026
—Completed

Units to sell

1.06K

Market value

$18.0K

6/15/2026

Planned — Approximate Date

NASDAQPlanned

Units to sell

1.17K

Market value

$27.7K

9/14/2026
Total

Units

39.53K

Value

$819.2K