Knopper Douglas S
SEC insider (Form 3/4/5 filer). CIK 0001350876. Director at MAGNITE, INC. (MGNI). 6 reported Form 4/5 transactions since Sep 2024; latest on Sep 17, 2026. Located in NEW YORK, NY.
Companies Knopper Douglas S has filed insider reports for
- MAGNITE, INC. (MGNI): Director
Knopper Douglas S
CIK: 0001350876
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)4 (66.7%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)2 (33.3%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
MGNI
MAGNITE, INC.
Director
Discretionary Trading P&L
Holdings
Transaction History (6 total)
- Sep 17, 2026MGNI
MAGNITE, INC.
SaleDirect37.3K shares at avg. $26.28$981K - Aug 6, 2026MGNI
MAGNITE, INC.
SaleDirect37.3K shares at avg. $22.72$848K - Jun 16, 2026MGNI
MAGNITE, INC.
SaleDirect37.3K shares at avg. $18.10$676K - Jun 10, 2026MGNI
MAGNITE, INC.
SaleDirect10.8K shares at avg. $15.73$169K - Jun 8, 2026MGNI
MAGNITE, INC.
AwardDirect13.8K shares- - Jun 5, 2025MGNI
MAGNITE, INC.
AwardDirect10.8K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 17, 2026 | MGNI MAGNITE, INC. | Sale | 37,337 | $26.28 | $981,216 | Direct |
| Aug 6, 2026 | MGNI MAGNITE, INC. | Sale | 37,337 | $22.72 | $848,297 | Direct |
| Jun 16, 2026 | MGNI MAGNITE, INC. | Sale | 37,337 | $18.10 | $675,800 | Direct |
| Jun 10, 2026 | MGNI MAGNITE, INC. | Sale | 10,766 | $15.73 | $169,349 | Direct |
| Jun 8, 2026 | MGNI MAGNITE, INC. | Award | 13,798 | - | $0 | Direct |
| Jun 5, 2025 | MGNI MAGNITE, INC. | Award | 10,766 | - | - | Direct |
1-6 of 6 transactions