BARRETT MICHAEL G.

PrivateCIK: 1100612
Location

PLAYA VISTA, CA

BARRETT MICHAEL G. (President and CEO) sold 8.7% of their position (38.60K shares) of MAGNITE, INC. on the open market

Open‑market sale worth $785.4K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale
InsiderBARRETT MICHAEL G.CIK 1100612
IssuerMAGNITE, INC.CIK 1595974
DirectorOfficer· President and CEO
Since Aug 2018
-38.60K
Net shares
Net seller
$785.4K
Total sold
1
Open market trades
0B · 1S
3
Total transactions
38.60K acquired · 77.19K disposed
Non-Derivative Transactions2

Common Stock

Direct
M · Option Exercise

Shares

+38.60K

Price / share

$5.80

Trade value

$223.86K

% of position

9.6%
7/15/2026
403.07K441.67K

Common Stock

Direct
S · Sale

Shares

38.60K

Price / share

$20.35

Trade value

$785.43K

% of position

8.7%
7/15/2026
441.67K403.07K
Total

Net shares

+0.00

Net value

-$561.57K

Derivative Transactions1

Employee Stock Option (Right to Buy)

Direct
M · Option Exercise
Converts to

Common Stock

38.60K shares

Shares

38.60K

Strike price

5.80

Held after

293.97K

Exercisable

7/15/2026
BARRETT MICHAEL G. — Insider Transaction (Form 4) Filed Jul 17, 2026 | Finecho