EVANS KATIE SEITZ (Chief Operating Officer) sold 8.7% of their position (43.38K shares) of MAGNITE, INC. on the open market
Open‑market sale worth $1.02M — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.
S · 2 sales
Filed: 9/10/2026ACC: 0001700262-26-000011
Officer· Chief Operating Officer
Since Sep 2020
-43.38K
Net shares
Net seller
$1.02M
Total sold
2
Open market trades
0B · 2S
4
Total transactions
13.55K acquired · 56.93K disposed
Non-Derivative Transactions3
Common Stock
Direct
Shares
+13.55K
Price / share
$5.16
Trade value
$69.90K
% of position
2.8%
9/8/2026
485.64K→499.18K
Common Stock
Direct
Shares
−32.28K
Price / share
$23.63
Trade value
$762.89K
% of position
6.5%
9/8/2026
499.18K→466.90K
Common Stock
Direct
Shares
−11.10K
Price / share
$23.46
Trade value
$260.41K
% of position
2.4%
9/9/2026
466.90K→455.80K
Total
Net shares
−29.84K
Net value
-$953.40K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 9/8/2026 | M · Option Exercise | +13.55K | $5.16 | $69.90K | 2.8% | 485.64K | 499.18K |
| Common Stock Direct | 9/8/2026 | S · Sale | −32.28K | $23.63 | $762.89K | 6.5% | 499.18K | 466.90K |
| Common Stock Direct | 9/9/2026 | S · Sale | −11.10K | $23.46 | $260.41K | 2.4% | 466.90K | 455.80K |
| Total | −29.84K | -$953.40K | ||||||
Derivative Transactions1
Employee Stock Option (Right to Buy)
Direct
Converts to
Common Stock
13.55K shares
Shares
−13.55K
Strike price
5.16
Held after
0.00
Exercisable
—
9/8/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Employee Stock Option (Right to Buy) Direct | Common Stock13.55K shares | 9/8/2026 | M · Option Exercise | −13.55K | 5.16 | — | 0.00 |