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MGNI · Magnite, Inc. · Proposed Sales

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$25.44 +0.18 (+0.71%) At close · Oct 1
Russell 2000 member Rebalance outlook locked
Market Cap
$3.44B
Shares
143.42M
Volume · Oct 1 1.74M Avg daily vol (3M) 2.5M

Notices of intent to sell restricted or control shares, filed with the SEC on Form 144 by insiders and affiliates. A Form 144 signals a planned sale — it does not confirm the shares were actually sold.

Filed Seller Shares
2026-09-17 Douglas S. Knopper & Abigail L. Knopper TTEES of the Knopper Joint Mgmt Trust 11/15/13 37,337
2026-09-17 PAUL CAINE 20,000
2026-09-14 ROBERT SPILLANE 10,363
2026-09-14 DAVID BUONASERA 1,165
2026-09-11 KATHERYN EVANS 13,997
2026-09-10 PAUL CAINE 10,000
2026-09-10 AARON SALTZ 60,000
2026-09-09 KATHERYN EVANS 11,100
2026-09-08 KATHERYN EVANS 32,285
2026-09-02 DAVID BUONASERA 1,043
2026-09-01 DAVID BUONASERA 5,371
2026-08-28 SARAH PATRICIA HARDEN 18,436
2026-08-26 SARAH PATRICIA HARDEN 30,550
2026-08-18 SEAN BUCKLEY 2,759
2026-08-17 SEAN BUCKLEY 8,271
2026-08-14 PAUL CAINE 2,500
2026-08-10 BRIAN GEPHART 12,479
2026-08-10 RACHEL LAM 10,000
2026-08-06 KATHERYN EVANS 20,000
2026-08-06 MICHAEL G BARRETT 293,968
2026-08-06 DOUGLAS KNOPPER 19,128
2026-08-06 DAVID BUONASERA 7,649
2026-08-06 SEAN BUCKLEY 67,179
2026-08-06 Douglas S. Knopper & Abigail L. Knopper TTEES of the Knopper Joint Mgmt Trust 11/15/13 18,209
2026-07-15 MICHAEL G BARRETT 38,596
2026-07-10 PAUL CAINE 15,000
2026-07-07 SEAN BUCKLEY 19,233
2026-07-07 DAVID BUONASERA 1,224
2026-07-07 ADAM L SOROCA 8,000
2026-07-01 DAVID BUONASERA 9,376
2026-07-01 ADAM L SOROCA 8,000
2026-06-29 MICHAEL G BARRETT 75,000
2026-06-17 ADAM L SOROCA 8,000
2026-06-17 SEAN BUCKLEY 19,233
2026-06-17 DAVID BUONASERA 1,409
2026-06-16 ADAM L SOROCA 6,000
2026-06-16 MICHAEL G BARRETT 100,000
2026-06-16 DOUGLAS KNOPPER 37,337
2026-06-16 DAVID BUONASERA 11,233
2026-06-15 MICHAEL G BARRETT 178,596
2026-06-15 DAVID BUONASERA 1,057
2026-06-15 ADAM L SOROCA 6,000
2026-06-11 ADAM L SOROCA 6,500
2026-06-10 DOUGLAS KNOPPER 10,766
2026-06-10 DAVID T PEARSON 10,766
2026-06-09 ADAM L SOROCA 6,900
2026-06-03 ADAM L SOROCA 7,100
2026-06-01 ADAM L SOROCA 27,606
2026-06-01 DAVID BUONASERA 1,409
2026-05-28 ADAM L SOROCA 42,756
Showing 1–50 of 184 filings
Key facts CIK 1595974 CUSIP 55955D100 13F (30d) 11 filings 9 filers Visit website Investor relations