# Magnite, Inc. (MGNI) insider trading, Q3 2026 Canonical: https://sec-api.dev/insider-trading/mgni > 48 non-derivative transactions: 0 purchases, 33 sales ($19.1M). CIK 1595974. | Date | Insider | Relationship | Code | Shares | Price | Owned after | Filing | | --- | --- | --- | --- | --- | --- | --- | --- | | 2026-09-17 | Knopper Douglas S | Director | S | 37337.0 | 26.28 | 51136.0 | https://www.sec.gov/Archives/edgar/data/1595974/000135087626000005/0001350876-26-000005-index.htm | | 2026-09-17 | Caine Paul | Director | S | 7500.0 | 26.5 | 137401.0 | https://www.sec.gov/Archives/edgar/data/1595974/000141176526000009/0001411765-26-000009-index.htm | | 2026-09-14 | Spillane Robert F | Director | M | 10363.0 | 5.17 | 68078.0 | https://www.sec.gov/Archives/edgar/data/1595974/000160380826000005/0001603808-26-000005-index.htm | | 2026-09-14 | Spillane Robert F | Director | S | 10363.0 | 23.76 | 57715.0 | https://www.sec.gov/Archives/edgar/data/1595974/000160380826000005/0001603808-26-000005-index.htm | | 2026-09-14 | Buonasera David | Officer | S | 1165.0 | 24.0 | 245155.0 | https://www.sec.gov/Archives/edgar/data/1595974/000196685726000015/0001966857-26-000015-index.htm | | 2026-09-11 | Evans Katie Seitz | Officer | S | 13997.0 | 24.0 | 441800.0 | https://www.sec.gov/Archives/edgar/data/1595974/000170026226000013/0001700262-26-000013-index.htm | | 2026-09-10 | Caine Paul | Director | S | 5000.0 | 23.53 | 144901.0 | https://www.sec.gov/Archives/edgar/data/1595974/000141176526000007/0001411765-26-000007-index.htm | | 2026-09-10 | Saltz Aaron | Officer | S | 40000.0 | 23.41 | 224389.0 | https://www.sec.gov/Archives/edgar/data/1595974/000180798626000009/0001807986-26-000009-index.htm | | 2026-09-09 | Evans Katie Seitz | Officer | S | 11100.0 | 23.46 | 455797.0 | https://www.sec.gov/Archives/edgar/data/1595974/000170026226000011/0001700262-26-000011-index.htm | | 2026-09-08 | Evans Katie Seitz | Officer | M | 13546.0 | 5.16 | 499182.0 | https://www.sec.gov/Archives/edgar/data/1595974/000170026226000011/0001700262-26-000011-index.htm | | 2026-09-08 | Evans Katie Seitz | Officer | S | 32285.0 | 23.63 | 466897.0 | https://www.sec.gov/Archives/edgar/data/1595974/000170026226000011/0001700262-26-000011-index.htm | | 2026-09-02 | Buonasera David | Officer | S | 1043.0 | 25.0 | 246320.0 | https://www.sec.gov/Archives/edgar/data/1595974/000196685726000013/0001966857-26-000013-index.htm | | 2026-09-01 | Buonasera David | Officer | S | 5371.0 | 23.42 | 247363.0 | https://www.sec.gov/Archives/edgar/data/1595974/000196685726000013/0001966857-26-000013-index.htm | | 2026-08-28 | Harden Sarah Patricia | Director | S | 18436.0 | 24.0 | 114751.0 | https://www.sec.gov/Archives/edgar/data/1595974/000178187326000003/0001781873-26-000003-index.htm | | 2026-08-26 | Harden Sarah Patricia | Director | S | 30550.0 | 23.31 | 133187.0 | https://www.sec.gov/Archives/edgar/data/1595974/000178187326000003/0001781873-26-000003-index.htm | | 2026-08-18 | Buckley Sean Patrick | Officer | S | 2759.0 | 25.0 | 293060.0 | https://www.sec.gov/Archives/edgar/data/1595974/000186511626000009/0001865116-26-000009-index.htm | | 2026-08-17 | Buckley Sean Patrick | Officer | S | 8271.0 | 24.31 | 295819.0 | https://www.sec.gov/Archives/edgar/data/1595974/000186511626000009/0001865116-26-000009-index.htm | | 2026-08-15 | BARRETT MICHAEL G. | Director, Officer | F | 10404.0 | 24.73 | 392670.0 | https://www.sec.gov/Archives/edgar/data/1595974/000110061226000011/0001100612-26-000011-index.htm | | 2026-08-15 | Day David | Officer | F | 14170.0 | 24.73 | 452861.0 | https://www.sec.gov/Archives/edgar/data/1595974/000152328826000010/0001523288-26-000010-index.htm | | 2026-08-15 | Evans Katie Seitz | Officer | F | 11204.0 | 24.73 | 485636.0 | https://www.sec.gov/Archives/edgar/data/1595974/000170026226000009/0001700262-26-000009-index.htm | | 2026-08-15 | Gephart Brian | Officer | F | 3789.0 | 24.73 | 102328.0 | https://www.sec.gov/Archives/edgar/data/1595974/000177848426000008/0001778484-26-000008-index.htm | | 2026-08-15 | Saltz Aaron | Officer | F | 5627.0 | 24.73 | 264389.0 | https://www.sec.gov/Archives/edgar/data/1595974/000180798626000007/0001807986-26-000007-index.htm | | 2026-08-15 | Buckley Sean Patrick | Officer | F | 11715.0 | 24.73 | 304090.0 | https://www.sec.gov/Archives/edgar/data/1595974/000186511626000009/0001865116-26-000009-index.htm | | 2026-08-15 | Buonasera David | Officer | F | 8102.0 | 24.73 | 252734.0 | https://www.sec.gov/Archives/edgar/data/1595974/000196685726000011/0001966857-26-000011-index.htm | | 2026-08-14 | Caine Paul | Director | S | 7500.0 | 25.0 | 149901.0 | https://www.sec.gov/Archives/edgar/data/1595974/000141176526000005/0001411765-26-000005-index.htm | | 2026-08-13 | Day David | Officer | G | 26258.0 | 0.0 | 467031.0 | https://www.sec.gov/Archives/edgar/data/1595974/000152328826000008/0001523288-26-000008-index.htm | | 2026-08-10 | Caine Paul | Director | S | 5000.0 | 24.35 | 157401.0 | https://www.sec.gov/Archives/edgar/data/1595974/000141176526000003/0001411765-26-000003-index.htm | | 2026-08-10 | Lam Rachel | Director | S | 10000.0 | 24.16 | 230620.0 | https://www.sec.gov/Archives/edgar/data/1595974/000157923226000004/0001579232-26-000004-index.htm | | 2026-08-10 | Gephart Brian | Officer | S | 12479.0 | 24.68 | 106117.0 | https://www.sec.gov/Archives/edgar/data/1595974/000177848426000006/0001778484-26-000006-index.htm | | 2026-08-06 | BARRETT MICHAEL G. | Director, Officer | S | 293968.0 | 22.72 | 403074.0 | https://www.sec.gov/Archives/edgar/data/1595974/000110061226000009/0001100612-26-000009-index.htm | | 2026-08-06 | BARRETT MICHAEL G. | Director, Officer | M | 293968.0 | 5.8 | 697042.0 | https://www.sec.gov/Archives/edgar/data/1595974/000110061226000009/0001100612-26-000009-index.htm | | 2026-08-06 | Knopper Douglas S | Director | S | 37337.0 | 22.72 | 88473.0 | https://www.sec.gov/Archives/edgar/data/1595974/000135087626000003/0001350876-26-000003-index.htm | | 2026-08-06 | Evans Katie Seitz | Officer | M | 20000.0 | 5.16 | 516840.0 | https://www.sec.gov/Archives/edgar/data/1595974/000170026226000007/0001700262-26-000007-index.htm | | 2026-08-06 | Evans Katie Seitz | Officer | S | 20000.0 | 24.0 | 496840.0 | https://www.sec.gov/Archives/edgar/data/1595974/000170026226000007/0001700262-26-000007-index.htm | | 2026-08-06 | Buckley Sean Patrick | Officer | M | 28703.0 | 13.9 | 382984.0 | https://www.sec.gov/Archives/edgar/data/1595974/000186511626000007/0001865116-26-000007-index.htm | | 2026-08-06 | Buckley Sean Patrick | Officer | S | 19237.0 | 23.0 | 315805.0 | https://www.sec.gov/Archives/edgar/data/1595974/000186511626000007/0001865116-26-000007-index.htm | | 2026-08-06 | Buckley Sean Patrick | Officer | S | 47942.0 | 25.09 | 335042.0 | https://www.sec.gov/Archives/edgar/data/1595974/000186511626000007/0001865116-26-000007-index.htm | | 2026-08-06 | Buonasera David | Officer | S | 871.0 | 25.0 | 260836.0 | https://www.sec.gov/Archives/edgar/data/1595974/000196685726000009/0001966857-26-000009-index.htm | | 2026-08-06 | Buonasera David | Officer | S | 4176.0 | 22.81 | 264309.0 | https://www.sec.gov/Archives/edgar/data/1595974/000196685726000009/0001966857-26-000009-index.htm | | 2026-08-06 | Buonasera David | Officer | S | 2602.0 | 24.0 | 261707.0 | https://www.sec.gov/Archives/edgar/data/1595974/000196685726000009/0001966857-26-000009-index.htm | | 2026-07-15 | BARRETT MICHAEL G. | Director, Officer | M | 38596.0 | 5.8 | 441670.0 | https://www.sec.gov/Archives/edgar/data/1595974/000119312526307959/0001193125-26-307959-index.htm | | 2026-07-15 | BARRETT MICHAEL G. | Director, Officer | S | 38596.0 | 20.35 | 403074.0 | https://www.sec.gov/Archives/edgar/data/1595974/000119312526307959/0001193125-26-307959-index.htm | | 2026-07-10 | Caine Paul | Director | S | 5000.0 | 20.64 | 162401.0 | https://www.sec.gov/Archives/edgar/data/1595974/000119312526303451/0001193125-26-303451-index.htm | | 2026-07-07 | Buckley Sean Patrick | Officer | S | 19233.0 | 21.03 | 354281.0 | https://www.sec.gov/Archives/edgar/data/1595974/000119312526299731/0001193125-26-299731-index.htm | | 2026-07-07 | Buonasera David | Officer | S | 1224.0 | 21.0 | 268485.0 | https://www.sec.gov/Archives/edgar/data/1595974/000119312526299750/0001193125-26-299750-index.htm | | 2026-07-01 | Buonasera David | Officer | S | 9376.0 | 20.0 | 269709.0 | https://www.sec.gov/Archives/edgar/data/1595974/000119312526295113/0001193125-26-295113-index.htm | | 2026-06-29 | BARRETT MICHAEL G. | Director, Officer | M | 75000.0 | 5.8 | 478074.0 | https://www.sec.gov/Archives/edgar/data/1595974/000119312526292738/0001193125-26-292738-index.htm | | 2026-06-29 | BARRETT MICHAEL G. | Director, Officer | S | 75000.0 | 19.5 | 403074.0 | https://www.sec.gov/Archives/edgar/data/1595974/000119312526292738/0001193125-26-292738-index.htm | Source: https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets --- 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