Douglas S Knopper
CIK 1350876 · View on SEC EDGAR ↗
Insider
First SEC filing: June 10, 2026 · Latest: June 10, 2026
On this page
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net:
$-1,693,446
+ 6 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
6 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 6, 2026 | MGNI | S 10b5-1 | 37,337 | $22.72 | $848,297 | 88,473 Direct | -29.68% | Disposed | 3.5% (price as of 2026-08-20) |
| June 16, 2026 | MGNI | S 10b5-1 | 37,337 | $18.10 | $675,800 | 125,810 Direct | -22.89% | Disposed | 29.9% (price as of 2026-08-20) |
| June 10, 2026 | MGNI | S 10b5-1 | 10,766 | $15.73 | $169,349 | 163,147 Direct | -6.19% | Disposed | 49.4% (price as of 2026-08-20) |
| July 9, 2021 | MGNI | S 10b5-1 | 1,190 | $33.61 | $39,996 | 105,056 Direct | -1.12% | Disposed | -30.1% (price as of 2026-08-20) |
| July 9, 2021 | MGNI | S 10b5-1 | 9,010 | $32.68 | $294,447 | 106,246 Direct | -7.82% | Disposed | -28.1% (price as of 2026-08-20) |
| April 5, 2021 | MGNI | S 10b5-1 | 500 | $42.55 | $21,275 | 111,320 Direct | -0.45% | Disposed | -44.8% (price as of 2026-08-20) |
| April 5, 2021 | MGNI | S 10b5-1 | 200 | $41.53 | $8,306 | 111,820 Direct | -0.18% | Disposed | -43.4% (price as of 2026-08-20) |
| April 5, 2021 | MGNI | S 10b5-1 | 4,377 | $40.32 | $176,481 | 112,020 Direct | -3.76% | Disposed | -41.7% (price as of 2026-08-20) |
| April 5, 2021 | MGNI | S 10b5-1 | 4,923 | $39.55 | $194,705 | 116,397 Direct | -4.06% | Disposed | -40.6% (price as of 2026-08-20) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.