On this page
Aaron Saltz
Insider
First SEC filing: April 3, 2020 · Latest: April 3, 2020
Insider at
Insider transactions
0 buys (P)
1 sells (S)
Net: $-936,400
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. 10, 2026 | MGNI | S 10b5-1 | 40,000 | $23.41 | $936,400 | 224,389 Direct | -15.13% | Disposed | 6.1% (price as of 2026-10-06) |
| Aug. 15, 2026 | MGNI | F | 5,627 | $24.73 | $139,156 | 264,389 Direct | -2.08% | Disposed | 0.4% (price as of 2026-10-06) |
| May 15, 2026 | MGNI | F | 5,627 | $12.82 | $72,138 | 270,016 Direct | -2.04% | Disposed | 93.8% (price as of 2026-10-06) |
| Feb. 15, 2026 | MGNI | F | 12,761 | $11.70 | $149,304 | 275,643 Direct | -4.42% | Disposed | 112.3% (price as of 2026-10-06) |
| Jan. 9, 2026 | MGNI | M | 28,215 | · | · | 303,430 Direct | +10.25% | Acquired | (price as of 2026-10-06) |
| Jan. 9, 2026 | MGNI | F | 15,026 | $16.17 | $242,970 | 288,404 Direct | -4.95% | Disposed | 53.6% (price as of 2026-10-06) |
| Jan. 9, 2026 | MGNI | M | 28,215 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Jan. 1, 2026 | MGNI | A | 65,831 | · | · | 275,215 Direct | +31.44% | Acquired | (price as of 2026-10-06) |
| Jan. 1, 2026 | MGNI | A | 22,115 | · | · | 22,115 Direct | · | Acquired | (price as of 2026-10-06) |
| Nov. 15, 2025 | MGNI | F | 5,695 | $14.15 | $80,584 | 209,384 Direct | -2.65% | Disposed | 75.5% (price as of 2026-10-06) |
| Sept. 19, 2025 | MGNI | S 10b5-1 | 8,522 | $24.50 | $208,789 | 215,079 Direct | -3.81% | Disposed | 1.4% (price as of 2026-10-06) |
| Sept. 15, 2025 | MGNI | S 10b5-1 | 6,180 | $23.94 | $147,949 | 223,601 Direct | -2.69% | Disposed | 3.8% (price as of 2026-10-06) |
| Aug. 29, 2025 | MGNI | S | 12,403 | $26.07 | $323,346 | 229,781 Direct | -5.12% | Disposed | -4.7% (price as of 2026-10-06) |
| Aug. 18, 2025 | MGNI | S | 5,770 | $23.85 | $137,614 | 242,184 Direct | -2.33% | Disposed | 4.2% (price as of 2026-10-06) |
| Aug. 14, 2025 | MGNI | S | 13,860 | $23.34 | $323,492 | 247,954 Direct | -5.29% | Disposed | 6.4% (price as of 2026-10-06) |
| June 30, 2025 | MGNI | S 10b5-1 | 17,574 | $22.00 | $386,628 | 261,814 Direct | -6.29% | Disposed | 12.9% (price as of 2026-10-06) |
| June 16, 2025 | MGNI | S 10b5-1 | 16,788 | $17.50 | $293,790 | 279,388 Direct | -5.67% | Disposed | 41.9% (price as of 2026-10-06) |
| June 4, 2025 | MGNI | S | 15,328 | $16.71 | $256,131 | 296,176 Direct | -4.92% | Disposed | 48.7% (price as of 2026-10-06) |
| May 15, 2025 | MGNI | F | 6,001 | $15.88 | $95,296 | 311,504 Direct | -1.89% | Disposed | 56.4% (price as of 2026-10-06) |
| Feb. 15, 2025 | MGNI | F | 13,125 | $20.00 | $262,500 | 317,505 Direct | -3.97% | Disposed | 24.2% (price as of 2026-10-06) |
| Feb. 7, 2025 | MGNI | S 10b5-1 | 17,947 | $19.75 | $354,453 | 330,630 Direct | -5.15% | Disposed | 25.8% (price as of 2026-10-06) |
| Jan. 9, 2025 | MGNI | A | 51,095 | · | · | 348,577 Direct | +17.18% | Acquired | (price as of 2026-10-06) |
| Jan. 9, 2025 | MGNI | A | 17,199 | · | · | 17,199 Direct | · | Acquired | (price as of 2026-10-06) |
| Nov. 25, 2024 | MGNI | S 10b5-1 | 6,110 | $17.50 | $106,925 | 297,482 Direct | -2.01% | Disposed | 41.9% (price as of 2026-10-06) |
| Nov. 15, 2024 | MGNI | F | 4,153 | $15.85 | $65,825 | 303,592 Direct | -1.35% | Disposed | 56.7% (price as of 2026-10-06) |
| Nov. 7, 2024 | MGNI | S 10b5-1 | 5,112 | $13.50 | $69,012 | 307,745 Direct | -1.63% | Disposed | 84.0% (price as of 2026-10-06) |
| Aug. 15, 2024 | MGNI | F | 4,153 | $12.51 | $51,954 | 312,857 Direct | -1.31% | Disposed | 98.6% (price as of 2026-10-06) |
| June 14, 2024 | MGNI | S 10b5-1 | 4,778 | $13.65 | $65,220 | 317,010 Direct | -1.48% | Disposed | 82.0% (price as of 2026-10-06) |
| May 15, 2024 | MGNI | F | 3,553 | $9.80 | $34,819 | 321,788 Direct | -1.09% | Disposed | 153.5% (price as of 2026-10-06) |
| Feb. 15, 2024 | MGNI | F | 9,178 | $9.74 | $89,394 | 325,341 Direct | -2.74% | Disposed | 155.0% (price as of 2026-10-06) |
| Feb. 15, 2024 | MGNI | F | 12,738 | $9.74 | $124,068 | 321,781 Direct | -3.81% | Disposed | 155.0% (price as of 2026-10-06) |
| Jan. 2, 2024 | MGNI | A | 22,331 | · | · | 22,331 Direct | · | Acquired | (price as of 2026-10-06) |
| Jan. 2, 2024 | MGNI | A | 62,602 | · | · | 334,519 Direct | +23.02% | Acquired | (price as of 2026-10-06) |
| Nov. 15, 2023 | MGNI | F | 3,466 | $7.89 | $27,347 | 271,917 Direct | -1.26% | Disposed | 214.8% (price as of 2026-10-06) |
| Aug. 16, 2023 | MGNI | S | 3,594 | $8.31 | $29,866 | 275,383 Direct | -1.29% | Disposed | 198.9% (price as of 2026-10-06) |
| May 16, 2023 | MGNI | S | 3,801 | $10.88 | $41,355 | 330,820 Direct | -1.14% | Disposed | 128.3% (price as of 2026-10-06) |
| Feb. 15, 2023 | MGNI | F | 6,031 | $13.27 | $80,031 | 334,621 Direct | -1.77% | Disposed | 87.2% (price as of 2026-10-06) |
| Feb. 14, 2023 | MGNI | F | 4,242 | $11.82 | $50,140 | 340,652 Direct | -1.23% | Disposed | 110.2% (price as of 2026-10-06) |
| Jan. 1, 2023 | MGNI | A | 22,331 | · | · | 22,331 Direct | · | Acquired | (price as of 2026-10-06) |
| Jan. 1, 2023 | MGNI | A | 62,602 | · | · | 344,894 Direct | +22.18% | Acquired | (price as of 2026-10-06) |
| Nov. 15, 2022 | MGNI | F | 1,767 | $11.47 | $20,267 | 282,292 Direct | -0.62% | Disposed | 116.6% (price as of 2026-10-06) |
| Aug. 15, 2022 | MGNI | F | 1,767 | $9.80 | $17,317 | 284,059 Direct | -0.62% | Disposed | 153.5% (price as of 2026-10-06) |
| May 15, 2022 | MGNI | F | 3,288 | $10.59 | $34,820 | 285,826 Direct | -1.14% | Disposed | 134.6% (price as of 2026-10-06) |
| April 1, 2022 | MGNI | F | 18,718 | $13.49 | $252,506 | 289,114 Direct | -6.08% | Disposed | 84.1% (price as of 2026-10-06) |
| Feb. 15, 2022 | MGNI | F | 1,310 | $13.95 | $18,274 | 307,832 Direct | -0.42% | Disposed | 78.1% (price as of 2026-10-06) |
| Feb. 14, 2022 | MGNI | F | 9,221 | $13.30 | $122,639 | 309,142 Direct | -2.90% | Disposed | 86.8% (price as of 2026-10-06) |
| Feb. 1, 2022 | MGNI | A | 53,250 | · | · | 318,363 Direct | +20.09% | Acquired | (price as of 2026-10-06) |
| Feb. 1, 2022 | MGNI | A | 37,887 | · | · | 37,887 Direct | · | Acquired | (price as of 2026-10-06) |
| Nov. 15, 2021 | MGNI | F | 1,365 | $22.50 | $30,712 | 265,113 Direct | -0.51% | Disposed | 10.4% (price as of 2026-10-06) |
| Sept. 10, 2021 | MGNI | M | 4,575 | · | · | 22,872 Direct | -16.67% | Disposed | (price as of 2026-10-06) |
| Sept. 10, 2021 | MGNI | M | 8,264 | · | · | 35,336 Direct | -18.95% | Disposed | (price as of 2026-10-06) |
| Sept. 10, 2021 | MGNI | M | 965 | · | · | 29,911 Direct | -3.13% | Disposed | (price as of 2026-10-06) |
| Sept. 10, 2021 | MGNI | S | 40,004 | $30.21 | $1,208,521 | 266,478 Direct | -13.05% | Disposed | -17.8% (price as of 2026-10-06) |
| Sept. 10, 2021 | MGNI | M | 4,575 | $5.16 | $23,607 | 306,482 Direct | +1.52% | Acquired | 381.4% (price as of 2026-10-06) |
| Sept. 10, 2021 | MGNI | M | 8,264 | $3.61 | $29,833 | 301,907 Direct | +2.81% | Acquired | 588.1% (price as of 2026-10-06) |
| Sept. 10, 2021 | MGNI | M | 965 | $5.28 | $5,095 | 293,643 Direct | +0.33% | Acquired | 370.5% (price as of 2026-10-06) |
| Sept. 8, 2021 | MGNI | M | 28,852 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Sept. 8, 2021 | MGNI | M | 5,410 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Sept. 8, 2021 | MGNI | M | 28,852 | $5.46 | $157,532 | 292,678 Direct | +10.94% | Acquired | 354.9% (price as of 2026-10-06) |
| Sept. 8, 2021 | MGNI | M | 5,410 | $7.74 | $41,873 | 263,826 Direct | +2.09% | Acquired | 220.9% (price as of 2026-10-06) |
| Aug. 16, 2021 | MGNI | S | 1,481 | $26.82 | $39,720 | 258,416 Direct | -0.57% | Disposed | -7.4% (price as of 2026-10-06) |
| Aug. 9, 2021 | MGNI | M 10b5-1 | 1,791 | · | · | 43,600 Direct | -3.95% | Disposed | (price as of 2026-10-06) |
| Aug. 9, 2021 | MGNI | S 10b5-1 | 5,000 | $33.81 | $169,050 | 259,897 Direct | -1.89% | Disposed | -26.5% (price as of 2026-10-06) |
| Aug. 9, 2021 | MGNI | M 10b5-1 | 1,791 | $3.61 | $6,466 | 264,897 Direct | +0.68% | Acquired | 588.1% (price as of 2026-10-06) |
| July 9, 2021 | MGNI | M 10b5-1 | 1,791 | · | · | 45,391 Direct | -3.80% | Disposed | (price as of 2026-10-06) |
| July 9, 2021 | MGNI | S 10b5-1 | 805 | $33.58 | $27,032 | 263,106 Direct | -0.31% | Disposed | -26.0% (price as of 2026-10-06) |
| July 9, 2021 | MGNI | S 10b5-1 | 4,195 | $32.66 | $137,009 | 263,911 Direct | -1.56% | Disposed | -23.9% (price as of 2026-10-06) |
| July 9, 2021 | MGNI | M 10b5-1 | 1,791 | $3.61 | $6,466 | 268,106 Direct | +0.67% | Acquired | 588.1% (price as of 2026-10-06) |
| June 9, 2021 | MGNI | M 10b5-1 | 1,791 | $3.61 | $6,466 | 271,315 Direct | +0.66% | Acquired | 588.1% (price as of 2026-10-06) |
| June 9, 2021 | MGNI | S 10b5-1 | 5,000 | $33.15 | $165,750 | 266,315 Direct | -1.84% | Disposed | -25.1% (price as of 2026-10-06) |
| June 9, 2021 | MGNI | M 10b5-1 | 1,791 | · | · | 47,182 Direct | -3.66% | Disposed | (price as of 2026-10-06) |
| May 17, 2021 | MGNI | S | 5,308 | $25.98 | $137,902 | 269,524 Direct | -1.93% | Disposed | -4.4% (price as of 2026-10-06) |
| May 10, 2021 | MGNI | M 10b5-1 | 1,791 | · | · | 48,973 Direct | -3.53% | Disposed | (price as of 2026-10-06) |
| May 10, 2021 | MGNI | S 10b5-1 | 2,773 | $32.68 | $90,622 | 274,832 Direct | -1.00% | Disposed | -24.0% (price as of 2026-10-06) |
| May 10, 2021 | MGNI | S 10b5-1 | 2,227 | $31.06 | $69,171 | 277,605 Direct | -0.80% | Disposed | -20.0% (price as of 2026-10-06) |
| May 10, 2021 | MGNI | M 10b5-1 | 1,791 | $3.61 | $6,466 | 279,832 Direct | +0.64% | Acquired | 588.1% (price as of 2026-10-06) |
| April 5, 2021 | MGNI | M 10b5-1 | 5,373 | · | · | 50,764 Direct | -9.57% | Disposed | (price as of 2026-10-06) |
| April 5, 2021 | MGNI | S | 19,091 | $40.25 | $768,413 | 278,041 Direct | -6.43% | Disposed | -38.3% (price as of 2026-10-06) |
| April 5, 2021 | MGNI | S 10b5-1 | 1,689 | $43.08 | $72,762 | 297,132 Direct | -0.57% | Disposed | -42.3% (price as of 2026-10-06) |
| April 5, 2021 | MGNI | S 10b5-1 | 6,350 | $42.13 | $267,526 | 298,821 Direct | -2.08% | Disposed | -41.0% (price as of 2026-10-06) |
| April 5, 2021 | MGNI | S 10b5-1 | 3,123 | $40.79 | $127,387 | 305,171 Direct | -1.01% | Disposed | -39.1% (price as of 2026-10-06) |
| April 5, 2021 | MGNI | S 10b5-1 | 3,838 | $40.07 | $153,789 | 308,294 Direct | -1.23% | Disposed | -38.0% (price as of 2026-10-06) |
| April 5, 2021 | MGNI | M 10b5-1 | 5,373 | $3.61 | $19,397 | 312,132 Direct | +1.75% | Acquired | 588.1% (price as of 2026-10-06) |
| April 1, 2021 | MGNI | A | 10,635 | · | · | 10,635 Direct | · | Acquired | (price as of 2026-10-06) |
| April 1, 2021 | MGNI | A | 14,292 | · | · | 306,759 Direct | +4.89% | Acquired | (price as of 2026-10-06) |
| Feb. 16, 2021 | MGNI | S | 24,131 | $56.13 | $1,354,473 | 292,467 Direct | -7.62% | Disposed | -55.7% (price as of 2026-10-06) |
| Nov. 6, 2020 | MGNI | S | 10,000 | $11.31 | $113,100 | 325,927 Direct | -2.98% | Disposed | 119.6% (price as of 2026-10-06) |
| Nov. 6, 2020 | MGNI | S | 9,329 | $11.50 | $107,284 | 316,598 Direct | -2.86% | Disposed | 116.0% (price as of 2026-10-06) |
| Nov. 5, 2020 | MGNI | S | 10,000 | $10.50 | $105,000 | 335,927 Direct | -2.89% | Disposed | 136.6% (price as of 2026-10-06) |
| Oct. 23, 2020 | MGNI | S 10b5-1 | 10,000 | $10.00 | $100,000 | 345,927 Direct | -2.81% | Disposed | 148.4% (price as of 2026-10-06) |
| April 1, 2020 | MGNI | A | 30,876 | · | · | 30,876 Direct | · | Acquired | (price as of 2026-10-06) |
| April 1, 2020 | MGNI | A | 27,447 | · | · | 27,447 Direct | · | Acquired | (price as of 2026-10-06) |
| April 1, 2020 | MGNI | A | 56,137 | · | · | 56,137 Direct | · | Acquired | (price as of 2026-10-06) |
| April 1, 2020 | MGNI | A | 5,410 | · | · | 5,410 Direct | · | Acquired | (price as of 2026-10-06) |
| April 1, 2020 | MGNI | A | 28,852 | · | · | 28,852 Direct | · | Acquired | (price as of 2026-10-06) |
| April 1, 2020 | MGNI | A | 73,330 | · | · | 355,927 Direct | +25.95% | Acquired | (price as of 2026-10-06) |
| April 1, 2020 | MGNI | A | 41,065 | · | · | 282,597 Direct | +17.00% | Acquired | (price as of 2026-10-06) |
| April 1, 2020 | MGNI | A | 241,532 | · | · | 241,532 Direct | · | Acquired | (price as of 2026-10-06) |
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.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Jan. 9, 2026 | MGNI | Performance Stock Units | Common Stock | · | · | 28,215 | Disposed |
| Jan. 1, 2026 | MGNI | Performance Stock Units | Common Stock | · | · | 22,115 | Acquired |
| Jan. 9, 2025 | MGNI | Performance Stock Units | Common Stock | · | · | 17,199 | Acquired |
| Jan. 2, 2024 | MGNI | Performance Stock Units | Common Stock | · | · | 22,331 | Acquired |
| Jan. 1, 2023 | MGNI | Performance Stock Units | Common Stock | · | · | 22,331 | Acquired |
| Feb. 1, 2022 | MGNI | Employee Stock Option (right to buy) | Common Stock | $13.90 | Feb. 1, 2032 | 37,887 | Acquired |
| Sept. 10, 2021 | MGNI | Stock Option (Right to Buy) | Common Stock | $5.16 | Feb. 28, 2029 | 4,575 | Disposed |
| Sept. 10, 2021 | MGNI | Stock Option (Right to Buy) | Common Stock | $3.61 | Feb. 27, 2028 | 8,264 | Disposed |
| Sept. 10, 2021 | MGNI | Stock Option (Right to Buy) | Common Stock | $5.28 | April 1, 2030 | 965 | Disposed |
| Sept. 8, 2021 | MGNI | Stock Option (Right to Buy) | Common Stock | $5.46 | March 5, 2023 | 28,852 | Disposed |
| Sept. 8, 2021 | MGNI | Stock Option (Right to Buy) | Common Stock | $7.74 | July 31, 2023 | 5,410 | Disposed |
| Aug. 9, 2021 | MGNI | Stock Option (Right to Buy) | Common Stock | $3.61 | Feb. 27, 2028 | 1,791 | Disposed |
| July 9, 2021 | MGNI | Stock Option (Right to Buy) | Common Stock | $3.61 | Feb. 27, 2028 | 1,791 | Disposed |
| June 9, 2021 | MGNI | Stock Option (Right to Buy) | Common Stock | $3.61 | Feb. 27, 2028 | 1,791 | Disposed |
| May 10, 2021 | MGNI | Stock Option (Right to Buy) | Common Stock | $3.61 | Feb. 27, 2028 | 1,791 | Disposed |
| April 5, 2021 | MGNI | Stock Option (Right to Buy) | Common Stock | $3.61 | Feb. 27, 2028 | 5,373 | Disposed |
| April 1, 2021 | MGNI | Employee Stock Option (right to buy) | Common Stock | $42.80 | April 1, 2031 | 10,635 | Acquired |
| April 1, 2020 | MGNI | Stock Option (Right to Buy) | Common Stock | $5.28 | April 1, 2030 | 30,876 | Acquired |
| April 1, 2020 | MGNI | Stock Option (Right to Buy) | Common Stock | $5.16 | Feb. 28, 2029 | 27,447 | Acquired |
| April 1, 2020 | MGNI | Stock Option (Right to Buy) | Common Stock | $3.61 | Feb. 27, 2028 | 56,137 | Acquired |
| April 1, 2020 | MGNI | Stock Option (Right to Buy) | Common Stock | $7.74 | July 31, 2023 | 5,410 | Acquired |
| April 1, 2020 | MGNI | Stock Option (Right to Buy) | Common Stock | $5.46 | March 5, 2023 | 28,852 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).