Dudediligence.

Magnite, Inc

MGNINASDAQ · Services-Computer Programming, Data Processing, Etc.
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Last 12 months

Sales planned on beside the trades reported on , and whether each names a .

Planned ·

$29.4M

59 notices · 1,485,743 sh

Oct 2025 to Oct 2026

Reported ·

$7,547,448

18 sales · 0 buys

Oct 2025 to Jun 2026

The two figures cover different periods.

16 of 18 reported sales carry the 10b5-1 box. Together they are 0.32% of the shares on issue.

PLANNED · FORM 144Oct 2025 to Oct 2026REPORTED · FORM 4Oct 2025 to Jun 2026N2025DJ2026FMAMJJASO2026-09-17: PAUL CAINE, Form 1442026-09-17: Douglas S. Knopper & Abigail L. Knopper TTEES of the Knopper Joint Mgmt Trust 11/15/13, Form 1442026-09-14: ROBERT SPILLANE, Form 1442026-09-14: DAVID BUONASERA, Form 1442026-09-11: KATHERYN EVANS, Form 1442026-09-10: PAUL CAINE, Form 1442026-09-10: AARON SALTZ, Form 1442026-09-09: KATHERYN EVANS, Form 1442026-09-08: KATHERYN EVANS, Form 1442026-09-02: DAVID BUONASERA, Form 1442026-09-01: DAVID BUONASERA, Form 1442026-08-28: SARAH PATRICIA HARDEN, Form 1442026-08-26: SARAH PATRICIA HARDEN, Form 1442026-08-18: SEAN BUCKLEY, Form 1442026-08-17: SEAN BUCKLEY, Form 1442026-08-14: PAUL CAINE, Form 1442026-08-10: RACHEL LAM, Form 1442026-08-10: BRIAN GEPHART, Form 1442026-08-06: SEAN BUCKLEY, Form 1442026-08-06: DOUGLAS KNOPPER, Form 1442026-08-06: KATHERYN EVANS, Form 1442026-08-06: Douglas S. Knopper & Abigail L. Knopper TTEES of the Knopper Joint Mgmt Trust 11/15/13, Form 1442026-08-06: DAVID BUONASERA, Form 1442026-08-06: MICHAEL G BARRETT, Form 1442026-07-15: MICHAEL G BARRETT, Form 1442026-07-10: PAUL CAINE, Form 1442026-07-07: SEAN BUCKLEY, Form 1442026-07-07: ADAM L SOROCA, Form 1442026-07-07: DAVID BUONASERA, Form 1442026-07-01: DAVID BUONASERA, Form 1442026-07-01: ADAM L SOROCA, Form 1442026-06-29: MICHAEL G BARRETT, Form 1442026-06-17: SEAN BUCKLEY, Form 1442026-06-17: ADAM L SOROCA, Form 1442026-06-17: DAVID BUONASERA, Form 1442026-06-16: DOUGLAS KNOPPER, Form 1442026-06-16: DAVID BUONASERA, Form 1442026-06-16: MICHAEL G BARRETT, Form 1442026-06-16: ADAM L SOROCA, Form 1442026-06-15: DAVID BUONASERA, Form 1442026-06-15: MICHAEL G BARRETT, Form 1442026-06-15: ADAM L SOROCA, Form 1442026-06-11: ADAM L SOROCA, Form 1442026-06-10: DOUGLAS KNOPPER, Form 1442026-06-10: DAVID T PEARSON, Form 1442026-06-09: ADAM L SOROCA, Form 1442026-06-03: ADAM L SOROCA, Form 1442026-06-01: ADAM L SOROCA, Form 1442026-06-01: DAVID BUONASERA, Form 1442026-05-28: ADAM L SOROCA, Form 1442026-05-27: ADAM L SOROCA, Form 1442026-05-19: ROBERT SPILLANE, Form 1442026-05-18: ADAM L SOROCA, Form 1442026-02-18: ADAM L SOROCA, Form 1442025-12-17: ADAM L SOROCA, Form 1442025-11-24: SEAN P BUCKLEY, Form 1442025-11-21: ROBERT SPILLANE, Form 1442025-11-18: ADAM L SOROCA, Form 1442025-11-18: SEAN P BUCKLEY, Form 1442025-10-24: Caine Paul, sold2025-11-18: Soroca Adam Lee, sold2025-11-18: Buckley Sean Patrick, sold2025-11-21: Spillane Robert F, sold2025-11-24: Buckley Sean Patrick, sold2025-12-17: Soroca Adam Lee, sold2026-02-18: Soroca Adam Lee, sold2026-05-19: Spillane Robert F, sold2026-06-01: Buonasera David, sold2026-06-10: PEARSON DAVID T., sold2026-06-10: Knopper Douglas S, sold2026-06-15: BARRETT MICHAEL G., sold2026-06-15: Buonasera David, sold2026-06-16: Knopper Douglas S, sold2026-06-17: Buckley Sean Patrick, sold
under a no plan named▼ salesize is dollars

Form 144 notices, newest first

2026-09-17PAUL CAINE, Director$475,600
20,000 shplan 2025-08-20Form 4s on file end Jun 23144 ↗
2026-09-17Douglas S. Knopper & Abigail L. Knopper TTEES of the Knopper Joint Mgmt Trust 11/15/13, Director$887,874
37,337 shplan 2025-12-12Form 4s on file end Jun 23144 ↗
2026-09-14ROBERT SPILLANE, Director$246,241
10,363 shno plan dateForm 4s on file end Jun 23144 ↗
2026-09-14DAVID BUONASERA, CHIEF TECHNOLOGY OFFICER$27,692
1,165 shplan 2026-06-13Form 4s on file end Jun 23144 ↗
2026-09-11KATHERYN EVANS, President, Operations$335,928
13,997 shplan 2026-06-08Form 4s on file end Jun 23144 ↗
2026-09-10PAUL CAINE, Director$235,800
10,000 shplan 2025-08-20Form 4s on file end Jun 23144 ↗
2026-09-10AARON SALTZ, CHIEF LEGAL OFFICER$1,414,800
60,000 shplan 2026-06-11Form 4s on file end Jun 23144 ↗
2026-09-09KATHERYN EVANS, President, Operations$260,357
11,100 shplan 2026-06-08Form 4s on file end Jun 23144 ↗
2026-09-08KATHERYN EVANS, President, Operations$762,871
32,285 shplan 2026-06-08Form 4s on file end Jun 23144 ↗
2026-09-02DAVID BUONASERA, CHIEF TECHNOLOGY OFFICER$26,075
1,043 shplan 2025-09-11Form 4s on file end Jun 23144 ↗
2026-09-01DAVID BUONASERA, CHIEF TECHNOLOGY OFFICER$125,789
5,371 shplan 2025-09-11Form 4s on file end Jun 23144 ↗
2026-08-28SARAH PATRICIA HARDEN, Director$442,464
18,436 shplan 2026-05-27Form 4s on file end Jun 23144 ↗
2026-08-26SARAH PATRICIA HARDEN, Director$712,167
30,550 shplan 2026-05-27Form 4s on file end Jun 23144 ↗
2026-08-18SEAN BUCKLEY, See Remarks$66,740
2,759 shplan 2025-09-10Form 4s on file end Jun 23144 ↗
2026-08-17SEAN BUCKLEY, See Remarks$204,542
8,271 shplan 2025-09-10Form 4s on file end Jun 23144 ↗
2026-08-14PAUL CAINE, Director$61,450
2,500 shplan 2025-08-20Form 4s on file end Jun 23144 ↗
2026-08-10RACHEL LAM, Director$241,572
10,000 shno plan dateForm 4s on file end Jun 23144 ↗
2026-08-10BRIAN GEPHART, CHIEF ACCOUNTING OFFICER$308,024
12,479 shno plan dateForm 4s on file end Jun 23144 ↗
2026-08-06SEAN BUCKLEY, See Remarks$1,388,590
67,179 shplan 2025-09-10Form 4s on file end Jun 23144 ↗
2026-08-06DOUGLAS KNOPPER, Director$395,376
19,128 shplan 2025-12-12Form 4s on file end Jun 23144 ↗
2026-08-06KATHERYN EVANS, President, Operations$480,000
20,000 shplan 2025-08-28Form 4s on file end Jun 23144 ↗
2026-08-06Douglas S. Knopper & Abigail L. Knopper TTEES of the Knopper Joint Mgmt Trust 11/15/13, Director$376,380
18,209 shplan 2025-12-12Form 4s on file end Jun 23144 ↗
2026-08-06DAVID BUONASERA, CHIEF TECHNOLOGY OFFICER$179,460
7,649 shplan 2025-09-11Form 4s on file end Jun 23144 ↗
2026-08-06MICHAEL G BARRETT, CEO$6,678,953
293,968 shplan 2026-03-13Form 4s on file end Jun 23144 ↗
2026-07-15MICHAEL G BARRETT, CEO$785,510
38,596 shplan 2026-03-13Form 4s on file end Jun 23144 ↗
2026-07-10PAUL CAINE, Director$318,300
15,000 shplan 2025-08-20Form 4s on file end Jun 23144 ↗
2026-07-07SEAN BUCKLEY, See Remarks$400,816
19,233 shplan 2025-09-10Form 4s on file end Jun 23144 ↗
2026-07-07ADAM L SOROCA, CHIEF PRODUCT OFFICER$168,000
8,000 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-07-07DAVID BUONASERA, CHIEF TECHNOLOGY OFFICER$25,704
1,224 shplan 2025-09-11Form 4s on file end Jun 23144 ↗
2026-07-01DAVID BUONASERA, CHIEF TECHNOLOGY OFFICER$187,520
9,376 shplan 2025-09-11Form 4s on file end Jun 23144 ↗
2026-07-01ADAM L SOROCA, CHIEF PRODUCT OFFICER$160,000
8,000 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-06-29MICHAEL G BARRETT, CEO$1,462,500
75,000 shplan 2026-03-13Form 4s on file end Jun 23144 ↗
2026-06-17SEAN BUCKLEY, See Remarks$356,772
19,233 shplan 2025-09-10144 ↗
Form 4, 2026-06-18: sold 19,233 at $19.00 Form 4 ↗
2026-06-17ADAM L SOROCA, CHIEF PRODUCT OFFICER$152,000
8,000 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-06-17DAVID BUONASERA, CHIEF TECHNOLOGY OFFICER$26,771
1,409 shplan 2025-09-11Form 4s on file end Jun 23144 ↗
2026-06-16DOUGLAS KNOPPER, Director$625,395
37,337 shplan 2025-12-12144 ↗
Form 4, 2026-06-17: sold 37,337 at $18.10 Form 4 ↗
2026-06-16DAVID BUONASERA, CHIEF TECHNOLOGY OFFICER$202,194
11,233 shplan 2025-09-11Form 4s on file end Jun 23144 ↗
2026-06-16MICHAEL G BARRETT, CEO$1,750,000
100,000 shplan 2026-03-13Form 4s on file end Jun 23144 ↗
2026-06-16ADAM L SOROCA, CHIEF PRODUCT OFFICER$108,000
6,000 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-06-15DAVID BUONASERA, CHIEF TECHNOLOGY OFFICER$17,969
1,057 shplan 2025-09-11144 ↗
Form 4, 2026-06-17: sold 13,699 at $18.03 Form 4 ↗
2026-06-15MICHAEL G BARRETT, CEO$2,962,062
178,596 shplan 2026-03-13144 ↗
Form 4, 2026-06-17: sold 278,596 at $16.92 Form 4 ↗
2026-06-15ADAM L SOROCA, CHIEF PRODUCT OFFICER$102,000
6,000 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-06-11ADAM L SOROCA, CHIEF PRODUCT OFFICER$104,195
6,500 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-06-10DOUGLAS KNOPPER, Director$170,210
10,766 shplan 2025-12-12144 ↗
Form 4, 2026-06-10: sold 10,766 at $15.73 Form 4 ↗
2026-06-10DAVID T PEARSON, Director$168,500
10,766 shplan 2026-03-09144 ↗
Form 4, 2026-06-10: sold 10,766 at $15.65 Form 4 ↗
2026-06-09ADAM L SOROCA, CHIEF PRODUCT OFFICER$105,225
6,900 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-06-03ADAM L SOROCA, CHIEF PRODUCT OFFICER$100,975
7,100 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-06-01ADAM L SOROCA, CHIEF PRODUCT OFFICER$418,015
27,606 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-06-01DAVID BUONASERA, CHIEF TECHNOLOGY OFFICER$21,135
1,409 shplan 2025-09-11144 ↗
Form 4, 2026-06-03: sold 1,409 at $15.00 Form 4 ↗
2026-05-28ADAM L SOROCA, CHIEF PRODUCT OFFICER$603,085
42,756 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-05-27ADAM L SOROCA, CHIEF PRODUCT OFFICER$250,477
18,225 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-05-19ROBERT SPILLANE, Director$133,331
10,000 shno plan date144 ↗
Form 4, 2026-05-21: sold 10,000 at $13.33 Form 4 ↗
2026-05-18ADAM L SOROCA, CHIEF PRODUCT OFFICER$247,976
18,451 shplan 2026-03-09Form 4s on file end Jun 23144 ↗
2026-02-18ADAM L SOROCA, CHIEF PRODUCT OFFICER$258,348
21,529 shplan 2025-08-18144 ↗
Form 4, 2026-02-18: sold 21,529 at $12.00 Form 4 ↗
2025-12-17ADAM L SOROCA, CHIEF PRODUCT OFFICER$283,152
16,656 shplan 2025-08-18144 ↗
Form 4, 2025-12-19: sold 16,656 at $17.00 Form 4 ↗
2025-11-24SEAN P BUCKLEY, See Remarks$32,089
2,213 shplan 2023-11-24144 ↗
Form 4, 2025-11-26: sold 2,213 at $14.50 Form 4 ↗
2025-11-21ROBERT SPILLANE, Director$177,795
12,500 shno plan date144 ↗
Form 4, 2025-11-21: sold 12,500 at $14.22 Form 4 ↗
2025-11-18ADAM L SOROCA, CHIEF PRODUCT OFFICER$143,685
10,857 shplan 2025-05-28144 ↗
Form 4, 2025-11-18: sold 10,857 at $13.23 Form 4 ↗
2025-11-18SEAN P BUCKLEY, See Remarks$59,142
4,426 shplan 2023-11-24144 ↗
Form 4, 2025-11-18: sold 4,426 at $13.36 Form 4 ↗