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Douglas S Knopper
Insider
First SEC filing: June 10, 2026 · Latest: June 10, 2026
Insider at
Insider transactions
0 buys (P)
4 sells (S)
Net: $-2,674,662
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 17, 2026 | MGNI | S 10b5-1 | 37,337 | $26.28 | $981,216 | 51,136 Direct | -42.20% | Disposed | -4.3% (price as of 2026-10-05) |
| Aug. 6, 2026 | MGNI | S 10b5-1 | 37,337 | $22.72 | $848,297 | 88,473 Direct | -29.68% | Disposed | 10.7% (price as of 2026-10-05) |
| June 16, 2026 | MGNI | S 10b5-1 | 37,337 | $18.10 | $675,800 | 125,810 Direct | -22.89% | Disposed | 39.0% (price as of 2026-10-05) |
| June 10, 2026 | MGNI | S 10b5-1 | 10,766 | $15.73 | $169,349 | 163,147 Direct | -6.19% | Disposed | 59.9% (price as of 2026-10-05) |
| June 8, 2026 | MGNI | A | 13,798 | · | · | 173,913 Direct | +8.62% | Acquired | (price as of 2026-10-05) |
| June 5, 2025 | MGNI | A | 10,766 | · | · | 160,115 Direct | +7.21% | Acquired | (price as of 2026-10-05) |
| June 12, 2024 | MGNI | A | 14,061 | · | · | 149,349 Direct | +10.39% | Acquired | (price as of 2026-10-05) |
| June 14, 2023 | MGNI | A | 13,743 | · | · | 135,288 Direct | +11.31% | Acquired | (price as of 2026-10-05) |
| June 7, 2022 | MGNI | A | 16,489 | · | · | 121,545 Direct | +15.70% | Acquired | (price as of 2026-10-05) |
| July 9, 2021 | MGNI | S 10b5-1 | 1,190 | $33.61 | $39,996 | 105,056 Direct | -1.12% | Disposed | -25.2% (price as of 2026-10-05) |
| July 9, 2021 | MGNI | S 10b5-1 | 9,010 | $32.68 | $294,447 | 106,246 Direct | -7.82% | Disposed | -23.0% (price as of 2026-10-05) |
| June 28, 2021 | MGNI | A | 3,936 | · | · | 115,256 Direct | +3.54% | Acquired | (price as of 2026-10-05) |
| April 5, 2021 | MGNI | S 10b5-1 | 500 | $42.55 | $21,275 | 111,320 Direct | -0.45% | Disposed | -40.9% (price as of 2026-10-05) |
| April 5, 2021 | MGNI | S 10b5-1 | 200 | $41.53 | $8,306 | 111,820 Direct | -0.18% | Disposed | -39.4% (price as of 2026-10-05) |
| April 5, 2021 | MGNI | S 10b5-1 | 4,377 | $40.32 | $176,481 | 112,020 Direct | -3.76% | Disposed | -37.6% (price as of 2026-10-05) |
| April 5, 2021 | MGNI | S 10b5-1 | 4,923 | $39.55 | $194,705 | 116,397 Direct | -4.06% | Disposed | -36.4% (price as of 2026-10-05) |
| July 8, 2020 | MGNI | A | 18,436 | · | · | 121,320 Direct | +17.92% | Acquired | (price as of 2026-10-05) |
| April 1, 2020 | MGNI | A | 102,884 | · | · | 102,884 Direct | · | Acquired | (price as of 2026-10-05) |
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.