MGNI MAGNITE, INC.
Nasdaq · SEC CIK 1595974 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $26.65M 41 sales by 13 insiders
- Filings on record
- 409 since 2021-07-02, latest 2026-09-18 16:06
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| BARRETT MICHAEL G. | CEO, Dir | — | $13.64M |
| Buckley Sean Patrick | See Remarks | — | $2.78M |
| Knopper Douglas S | Dir | — | $2.67M |
| Evans Katie Seitz | See Remarks | — | $1.84M |
| Harden Sarah Patricia | Dir | — | $1.15M |
| Saltz Aaron | CLO | — | $936.4K |
| Buonasera David | CTO | — | $840.6K |
| Caine Paul | Dir | — | $828.9K |
| Soroca Adam Lee | Chief PRODUCT Off | — | $685.1K |
| Spillane Robert F | Dir | — | $557.3K |
Transactions 468
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T | 2026-09-18 16:06 | 2026-09-17 | MGNI | Caine Paul | Dir | S - Sale | $26.50 | -7,500 | 137.4K | -5% | -$198.8K |
| T | 2026-09-18 16:05 | 2026-09-17 | MGNI | Knopper Douglas S | Dir | S - Sale | $26.28 | -37.3K | 51.1K | -42% | -$981.2K |
| T | 2026-09-16 16:23 | 2026-09-14 | MGNI | Buonasera David | CTO | S - Sale | $24.00 | -1,165 | 245.2K | -0.5% | -$28.0K |
| D | 2026-09-16 16:20 | 2026-09-14 | MGNI | Spillane Robert F | Dir | M - OptEx | $5.17 | +10.4K | 68.1K | +18% | +$53.6K |
| D | 2026-09-16 16:20 | 2026-09-14 | MGNI | Spillane Robert F | Dir | S - Sale+OE | $23.76 | -10.4K | 57.7K | -15% | -$246.2K |
| T | 2026-09-11 16:19 | 2026-09-11 | MGNI | Evans Katie Seitz | See Remarks | S - Sale | $24.00 | -14.0K | 441.8K | -3% | -$335.9K |
| T | 2026-09-11 16:15 | 2026-09-10 | MGNI | Saltz Aaron | CLO | S - Sale | $23.41 | -40.0K | 224.4K | -15% | -$936.4K |
| T | 2026-09-11 16:11 | 2026-09-10 | MGNI | Caine Paul | Dir | S - Sale | $23.53 | -5,000 | 144.9K | -3% | -$117.7K |
| DT | 2026-09-10 16:39 | 2026-09-08 | MGNI | Evans Katie Seitz | See Remarks | M - OptEx | $5.16 | +13.5K | 499.2K | +3% | +$69.9K |
| DMT | 2026-09-10 16:39 | 2026-09-08+ | MGNI | Evans Katie Seitz | See Remarks | S - Sale+OE | $23.59 | -43.4K | 455.8K | -9% | -$1.02M |
| MT | 2026-09-03 16:56 | 2026-09-01+ | MGNI | Buonasera David | CTO | S - Sale | $23.68 | -6,414 | 246.3K | -3% | -$151.9K |
| MT | 2026-08-28 18:36 | 2026-08-26+ | MGNI | Harden Sarah Patricia | Dir | S - Sale | $23.57 | -49.0K | 114.8K | -30% | -$1.15M |
| 2026-08-18 16:25 | 2026-08-15 | MGNI | Buonasera David | CTO | F - Tax | $24.73 | -8,102 | 252.7K | -3% | -$200.4K | |
| 2026-08-18 16:23 | 2026-08-15 | MGNI | Evans Katie Seitz | See Remarks | F - Tax | $24.73 | -11.2K | 485.6K | -2% | -$277.1K | |
| 2026-08-18 16:21 | 2026-08-15 | MGNI | Saltz Aaron | CLO | F - Tax | $24.73 | -5,627 | 264.4K | -2% | -$139.2K | |
| 2026-08-18 16:20 | 2026-08-15 | MGNI | Gephart Brian | CAO | F - Tax | $24.73 | -3,789 | 102.3K | -4% | -$93.7K | |
| 2026-08-18 16:19 | 2026-08-15 | MGNI | BARRETT MICHAEL G. | CEO, Dir | F - Tax | $24.73 | -10.4K | 392.7K | -3% | -$257.3K | |
| 2026-08-18 16:17 | 2026-08-15 | MGNI | Day David | CFO | F - Tax | $24.73 | -14.2K | 452.9K | -3% | -$350.4K | |
| T | 2026-08-18 16:16 | 2026-08-14 | MGNI | Caine Paul | Dir | S - Sale | $25.00 | -7,500 | 149.9K | -5% | -$187.5K |
| T | 2026-08-18 16:14 | 2026-08-15 | MGNI | Buckley Sean Patrick | See Remarks | F - Tax | $24.73 | -11.7K | 304.1K | -4% | -$289.7K |
| MT | 2026-08-18 16:14 | 2026-08-17+ | MGNI | Buckley Sean Patrick | See Remarks | S - Sale | $24.48 | -11.0K | 293.1K | -4% | -$270.0K |
| 2026-08-14 16:16 | 2026-08-13 | MGNI | Day David | CFO | G - Gift | $0.00 | -26.3K | 467.0K | -5% | $0 | |
| 2026-08-12 16:54 | 2026-08-10 | MGNI | Gephart Brian | CAO | S - Sale | $24.68 | -12.5K | 106.1K | -11% | -$308.0K | |
| 2026-08-12 16:51 | 2026-08-10 | MGNI | Lam Rachel | Dir | S - Sale | $24.16 | -10.0K | 230.6K | -4% | -$241.6K | |
| T | 2026-08-12 16:49 | 2026-08-10 | MGNI | Caine Paul | Dir | S - Sale | $24.35 | -5,000 | 157.4K | -3% | -$121.8K |
| DT | 2026-08-07 17:14 | 2026-08-06 | MGNI | Buckley Sean Patrick | See Remarks | M - OptEx | $13.90 | +28.7K | 383.0K | +8% | +$399.0K |
| DMT | 2026-08-07 17:14 | 2026-08-06 | MGNI | Buckley Sean Patrick | See Remarks | S - Sale+OE | $24.49 | -67.2K | 315.8K | -18% | -$1.65M |
| T | 2026-08-07 17:10 | 2026-08-06 | MGNI | Knopper Douglas S | Dir | S - Sale | $22.72 | -37.3K | 88.5K | -30% | -$848.3K |
| MT | 2026-08-07 17:09 | 2026-08-06 | MGNI | Buonasera David | CTO | S - Sale | $23.46 | -7,649 | 260.8K | -3% | -$179.5K |
| DT | 2026-08-07 17:06 | 2026-08-06 | MGNI | Evans Katie Seitz | See Remarks | M - OptEx | $5.16 | +20.0K | 516.8K | +4% | +$103.2K |
| DT | 2026-08-07 17:06 | 2026-08-06 | MGNI | Evans Katie Seitz | See Remarks | S - Sale+OE | $24.00 | -20.0K | 496.8K | -4% | -$480.0K |
| DT | 2026-08-07 17:00 | 2026-08-06 | MGNI | BARRETT MICHAEL G. | CEO, Dir | M - OptEx | $5.80 | +294.0K | 697.0K | +73% | +$1.71M |
| DT | 2026-08-07 17:00 | 2026-08-06 | MGNI | BARRETT MICHAEL G. | CEO, Dir | S - Sale+OE | $22.72 | -294.0K | 403.1K | -42% | -$6.68M |
| DT | 2026-07-17 17:00 | 2026-07-15 | MGNI | BARRETT MICHAEL G. | CEO, Dir | M - OptEx | $5.80 | +38.6K | 441.7K | +10% | +$223.9K |
| DT | 2026-07-17 17:00 | 2026-07-15 | MGNI | BARRETT MICHAEL G. | CEO, Dir | S - Sale+OE | $20.35 | -38.6K | 403.1K | -9% | -$785.4K |
| T | 2026-07-14 17:50 | 2026-07-10 | MGNI | Caine Paul | Dir | S - Sale | $20.64 | -5,000 | 162.4K | -3% | -$103.2K |
| T | 2026-07-09 16:32 | 2026-07-07 | MGNI | Buonasera David | CTO | S - Sale | $21.00 | -1,224 | 268.5K | -0.5% | -$25.7K |
| T | 2026-07-09 16:27 | 2026-07-07 | MGNI | Buckley Sean Patrick | See Remarks | S - Sale | $21.03 | -19.2K | 354.3K | -5% | -$404.5K |
| T | 2026-07-02 19:07 | 2026-07-01 | MGNI | Buonasera David | CTO | S - Sale | $20.00 | -9,376 | 269.7K | -3% | -$187.5K |
| DT | 2026-07-01 16:49 | 2026-06-29 | MGNI | BARRETT MICHAEL G. | CEO, Dir | M - OptEx | $5.80 | +75.0K | 478.1K | +19% | +$435.0K |
| DT | 2026-07-01 16:49 | 2026-06-29 | MGNI | BARRETT MICHAEL G. | CEO, Dir | S - Sale+OE | $19.50 | -75.0K | 403.1K | -16% | -$1.46M |
| T | 2026-06-18 19:51 | 2026-06-17 | MGNI | Buckley Sean Patrick | See Remarks | S - Sale | $19.00 | -19.2K | 373.5K | -5% | -$365.4K |
| T | 2026-06-17 18:48 | 2026-06-16 | MGNI | Knopper Douglas S | Dir | S - Sale | $18.10 | -37.3K | 125.8K | -23% | -$675.8K |
| MT | 2026-06-17 18:45 | 2026-06-15+ | MGNI | Buonasera David | CTO | S - Sale | $18.03 | -13.7K | 279.1K | -5% | -$246.9K |
| DMT | 2026-06-17 18:44 | 2026-06-15+ | MGNI | BARRETT MICHAEL G. | CEO, Dir | M - OptEx | $5.80 | +278.6K | 503.1K | +124% | +$1.62M |
| DMT | 2026-06-17 18:44 | 2026-06-15+ | MGNI | BARRETT MICHAEL G. | CEO, Dir | S - Sale+OE | $16.92 | -278.6K | 403.1K | -41% | -$4.71M |
| 2026-06-10 20:58 | 2026-06-08 | MGNI | Caine Paul | Dir | A - Grant | $0.00 | +13.8K | 167.4K | +9% | $0 | |
| 2026-06-10 20:54 | 2026-06-08 | MGNI | Yu Diane | Dir | A - Grant | $0.00 | +13.8K | 81.3K | +20% | $0 | |
| 2026-06-10 20:54 | 2026-06-08 | MGNI | Spillane Robert F | Dir | A - Grant | $0.00 | +13.8K | 57.7K | +31% | $0 | |
| 2026-06-10 20:50 | 2026-06-08 | MGNI | Harden Sarah Patricia | Dir | A - Grant | $0.00 | +13.8K | 163.7K | +9% | $0 | |
| T | 2026-06-10 20:50 | 2026-06-08 | MGNI | Knopper Douglas S | Dir | A - Grant | $0.00 | +13.8K | 173.9K | +9% | $0 |
| T | 2026-06-10 20:50 | 2026-06-10 | MGNI | Knopper Douglas S | Dir | S - Sale | $15.73 | -10.8K | 163.1K | -6% | -$169.3K |
| 2026-06-10 20:47 | 2026-06-08 | MGNI | Rossman James | Dir | A - Grant | $0.00 | +13.8K | 107.5K | +15% | $0 | |
| 2026-06-10 20:47 | 2026-06-08 | MGNI | Lam Rachel | Dir | A - Grant | $0.00 | +13.8K | 240.6K | +6% | $0 | |
| T | 2026-06-10 20:45 | 2026-06-08 | MGNI | PEARSON DAVID T. | Dir | A - Grant | $0.00 | +13.8K | 89.8K | +18% | $0 |
| T | 2026-06-10 20:45 | 2026-06-10 | MGNI | PEARSON DAVID T. | Dir | S - Sale | $15.65 | -10.8K | 79.0K | -12% | -$168.5K |
| T | 2026-06-03 16:45 | 2026-06-01 | MGNI | Buonasera David | CTO | S - Sale | $15.00 | -1,409 | 292.8K | -0.5% | -$21.1K |
| 2026-05-21 17:00 | 2026-05-19 | MGNI | Spillane Robert F | Dir | S - Sale | $13.33 | -10.0K | 43.9K | -19% | -$133.3K | |
| 2026-05-19 17:00 | 2026-05-15 | MGNI | BARRETT MICHAEL G. | CEO, Dir | F - Tax | $12.82 | -10.4K | 403.1K | -3% | -$133.4K | |
| 2026-05-19 17:00 | 2026-05-15 | MGNI | Buckley Sean Patrick | Pres, Revenue | F - Tax | $12.82 | -12.0K | 392.7K | -3% | -$154.1K | |
| 2026-05-19 17:00 | 2026-05-15 | MGNI | Day David | CFO | F - Tax | $12.82 | -14.2K | 493.3K | -3% | -$181.7K | |
| 2026-05-19 17:00 | 2026-05-15 | MGNI | Evans Katie Seitz | Pres, Ops | F - Tax | $12.82 | -11.2K | 496.8K | -2% | -$143.6K | |
| 2026-05-19 17:00 | 2026-05-15 | MGNI | Saltz Aaron | CLO | F - Tax | $12.82 | -5,627 | 270.0K | -2% | -$72.1K | |
| 2026-05-19 17:00 | 2026-05-15 | MGNI | Gephart Brian | CAO | F - Tax | $12.82 | -3,789 | 118.6K | -3% | -$48.6K | |
| 2026-05-19 17:00 | 2026-05-15 | MGNI | Buonasera David | CTO | F - Tax | $12.82 | -8,335 | 294.2K | -3% | -$106.9K | |
| 2026-02-18 | 2026-02-15 | MGNI | Buckley Sean Patrick | Pres, Revenue | F - Tax | $11.70 | -26.9K | 403.0K | -6% | -$315.2K | |
| 2026-02-18 | 2026-02-15 | MGNI | BARRETT MICHAEL G. | CEO, Dir | F - Tax | $11.70 | -23.5K | 412.2K | -5% | -$275.5K | |
| 2026-02-18 | 2026-02-15 | MGNI | Evans Katie Seitz | Pres, Ops | F - Tax | $11.70 | -27.4K | 508.0K | -5% | -$320.9K | |
| 2026-02-18 | 2026-02-15 | MGNI | Saltz Aaron | CLO | F - Tax | $11.70 | -12.8K | 275.6K | -4% | -$149.3K | |
| 2026-02-18 | 2026-02-18 | MGNI | Soroca Adam Lee | Chief PRODUCT Off | S - Sale | $12.00 | -21.5K | 388.4K | -5% | -$258.3K | |
| 2026-02-18 | 2026-02-15 | MGNI | Soroca Adam Lee | Chief PRODUCT Off | F - Tax | $11.70 | -18.9K | 410.0K | -4% | -$221.5K | |
| 2026-02-18 | 2026-02-15 | MGNI | Day David | CFO | F - Tax | $11.70 | -30.6K | 507.5K | -6% | -$358.2K | |
| 2026-02-18 | 2026-02-15 | MGNI | Gephart Brian | CAO | F - Tax | $11.70 | -6,149 | 122.4K | -5% | -$71.9K | |
| 2026-02-18 | 2026-02-15 | MGNI | Buonasera David | CTO | F - Tax | $11.70 | -17.1K | 302.1K | -5% | -$200.5K | |
| D | 2026-01-12 | 2026-01-09 | MGNI | Evans Katie Seitz | Pres, Ops | F - Tax | $16.17 | -26.8K | 535.5K | -5% | -$433.9K |
| D | 2026-01-12 | 2026-01-09 | MGNI | Evans Katie Seitz | Pres, Ops | M - OptEx | $0.00 | +51.3K | 562.3K | +10% | $0 |
| D | 2026-01-12 | 2026-01-09 | MGNI | Buonasera David | CTO | M - OptEx | $0.00 | +22.9K | 331.6K | +7% | $0 |
| D | 2026-01-12 | 2026-01-09 | MGNI | Buonasera David | CTO | F - Tax | $16.17 | -12.3K | 319.2K | -4% | -$199.4K |
| D | 2026-01-12 | 2026-01-09 | MGNI | Day David | CFO | M - OptEx | $0.00 | +72.7K | 573.2K | +15% | $0 |
| D | 2026-01-12 | 2026-01-09 | MGNI | Day David | CFO | F - Tax | $16.17 | -35.2K | 538.1K | -6% | -$568.7K |
| D | 2026-01-12 | 2026-01-09 | MGNI | Buckley Sean Patrick | Pres, Revenue | F - Tax | $16.17 | -30.4K | 429.9K | -7% | -$491.1K |
| D | 2026-01-12 | 2026-01-09 | MGNI | Buckley Sean Patrick | Pres, Revenue | M - OptEx | $0.00 | +64.1K | 460.3K | +16% | $0 |
| D | 2026-01-12 | 2026-01-09 | MGNI | Saltz Aaron | CLO | M - OptEx | $0.00 | +28.2K | 303.4K | +10% | $0 |
| D | 2026-01-12 | 2026-01-09 | MGNI | Saltz Aaron | CLO | F - Tax | $16.17 | -15.0K | 288.4K | -5% | -$243.0K |
| D | 2026-01-12 | 2026-01-09 | MGNI | Soroca Adam Lee | Chief PRODUCT Off | F - Tax | $16.17 | -25.3K | 428.9K | -6% | -$409.6K |
| D | 2026-01-12 | 2026-01-09 | MGNI | Soroca Adam Lee | Chief PRODUCT Off | M - OptEx | $0.00 | +51.3K | 454.2K | +13% | $0 |
| D | 2026-01-12 | 2026-01-09 | MGNI | BARRETT MICHAEL G. | CEO, Dir | M - OptEx | $0.00 | +213.8K | 545.5K | +64% | $0 |
| D | 2026-01-12 | 2026-01-09 | MGNI | BARRETT MICHAEL G. | CEO, Dir | F - Tax | $16.17 | -109.7K | 435.7K | -20% | -$1.77M |
| D | 2026-01-05 | 2026-01-01 | MGNI | Evans Katie Seitz | Pres, Ops | A - Grant | $0.00 | +127.3K | 511.0K | +33% | $0 |
| D | 2026-01-05 | 2026-01-01 | MGNI | Saltz Aaron | CLO | A - Grant | $0.00 | +65.8K | 275.2K | +31% | $0 |
| D | 2026-01-05 | 2026-01-01 | MGNI | BARRETT MICHAEL G. | CEO, Dir | A - Grant | $0.00 | +94.0K | 331.7K | +40% | $0 |
| D | 2026-01-05 | 2026-01-01 | MGNI | Day David | CFO | A - Grant | $0.00 | +131.7K | 500.6K | +36% | $0 |
| 2026-01-05 | 2026-01-01 | MGNI | Gephart Brian | CAO | A - Grant | $0.00 | +39.2K | 128.5K | +44% | $0 | |
| D | 2026-01-05 | 2026-01-01 | MGNI | Buckley Sean Patrick | Pres, Revenue | A - Grant | $0.00 | +127.3K | 396.2K | +47% | $0 |
| D | 2026-01-05 | 2026-01-01 | MGNI | Buonasera David | CTO | A - Grant | $0.00 | +76.8K | 308.6K | +33% | $0 |
| D | 2026-01-05 | 2026-01-01 | MGNI | Soroca Adam Lee | Chief PRODUCT Off | A - Grant | $0.00 | +76.8K | 402.9K | +24% | $0 |
| D | 2025-12-19 | 2025-12-17 | MGNI | Soroca Adam Lee | Chief PRODUCT Off | M - OptEx | $4.92 | +16.7K | 342.8K | +5% | +$81.9K |
| D | 2025-12-19 | 2025-12-17 | MGNI | Soroca Adam Lee | Chief PRODUCT Off | S - Sale+OE | $17.00 | -16.7K | 326.1K | -5% | -$283.2K |
| 2025-11-26 | 2025-11-24 | MGNI | Buckley Sean Patrick | Pres, Revenue | S - Sale | $14.50 | -2,213 | 268.9K | -0.8% | -$32.1K | |
| 2025-11-21 | 2025-11-21 | MGNI | Spillane Robert F | Dir | S - Sale | $14.22 | -12.5K | 53.9K | -19% | -$177.8K |
Purchase Sale Sale after option exercise All abbreviations