Company · CIK 0001595974 · SIC 7370 — Services-Computer Programming, Data Processing, Etc. · Nasdaq
MAGNITE, INC. · MGNI
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 1, 2015 SForm 4 → | Jun 2, 6:47 pm EDT | Frank AddanteSee remarks, Director | 12,000 | $17.19 | $206,280 | 1,958,531 | −0.61% | plan? |
| May 27, 2015 JForm 4 → | May 29, 5:12 pm EDT | Clearstone Venture Management III, L.L.C. +110% Owner | 23,664 | — | — | 0 | — | plan? |
| May 27, 2015 JForm 4 → | May 29, 2:28 pm EDT | Sumant MandalDirector | 1,360 | $17.27 | $23,487 | 26,969 | — | plan? |
| May 27, 2015 SForm 4 → | May 28, 7:16 pm EDT | Frank AddanteSee remarks, Director | 12,000 | $17.14 | $205,680 | 1,970,531 | −0.61% | plan? |
| May 26, 2015 JForm 4 → | May 27, 5:23 pm EDT | Sumant MandalDirector, 10% Owner | 618,934 | $17.40 | $10,769,452 | 5,744,720 | — | plan? |
| May 22, 2015 JForm 4/A → | May 29, 5:20 pm EDT | CLEARSTONE VENTURE PARTNERS III-A LP10% Owner | 618,934 | — | — | 5,570,406 | — | plan? |
| May 20, 2015 SForm 4 → | May 22, 6:38 pm EDT | Frank AddanteSee remarks, Director | 367,819 | $17.08 | $6,283,056 | 1,982,531 | −15.6% | plan? |
| May 19, 2015 AForm 4 → | May 19, 9:05 pm EDT | Brian W CoppleGeneral Counsel and Secretary | 51,100 | — | — | 95,000 | — | plan? |
| May 19, 2015 AForm 4 → | May 19, 9:04 pm EDT | Frank AddanteSee remarks, Director | 231,468 | — | — | 2,355,206 | — | plan? |
| May 19, 2015 AForm 4 → | May 19, 9:02 pm EDT | David DayChief Accounting Officer | 25,100 | — | — | 63,200 | — | plan? |
| May 19, 2015 AForm 4 → | May 19, 9:01 pm EDT | Todd L TappinCFO & COO | 152,347 | — | — | 368,518 | — | plan? |
| May 19, 2015 AForm 4 → | May 19, 8:58 pm EDT | Gregory R RaifmanPresident, Director | 159,517 | — | — | 405,728 | — | plan? |
| May 18, 2015 SForm 4/A → | May 22, 6:50 pm EDT | Todd L TappinCFO & COO | 26,116 | $17.21 | $449,456 | 217,814 | −10.7% | plan? |
| May 18, 2015 SForm 4/A → | May 22, 5:59 pm EDT | Gregory R RaifmanPresident, Director | 26,064 | $17.21 | $448,561 | 246,150 | −9.57% | plan? |
| May 18, 2015 SForm 4/A → | May 22, 5:56 pm EDT | Frank AddanteSee remarks, Director | 29,140 | $17.22 | $501,791 | 2,363,063 | −1.22% | plan? |
| May 15, 2015 SForm 4 → | May 19, 9:05 pm EDT | Brian W CoppleGeneral Counsel and Secretary | 6,100 | $17.25 | $105,225 | 43,900 | −12.2% | plan? |
| May 15, 2015 SForm 4 → | May 19, 9:04 pm EDT | Frank AddanteSee remarks, Director | 301,694 | $17.03 | $5,137,502 | 2,123,738 | −12.4% | plan? |
| May 15, 2015 SForm 4 → | May 19, 9:02 pm EDT | David DayChief Accounting Officer | 5,200 | $17.24 | $89,648 | 38,100 | −12.0% | plan? |
| May 15, 2015 SForm 4 → | May 19, 9:01 pm EDT | Todd L TappinCFO & COO | 39,361 | $17.22 | $677,867 | 216,171 | −15.4% | plan? |
| May 15, 2015 SForm 4 → | May 19, 8:58 pm EDT | Gregory R RaifmanPresident, Director | 39,292 | $17.22 | $676,747 | 246,211 | −13.8% | plan? |
| May 13, 2015 SForm 4 → | May 15, 7:51 pm EDT | Frank AddanteSee remarks, Director | 250,000 | $17.60 | $4,400,637 | 2,425,432 | −9.34% | plan? |
| May 13, 2015 AForm 4 → | May 15, 4:50 pm EDT | Sumant MandalDirector | 4,886 | — | — | 26,169 | — | plan? |
| May 13, 2015 AForm 4 → | May 15, 4:38 pm EDT | Robert J FrankenbergDirector | 4,886 | — | — | 26,169 | — | plan? |
| May 13, 2015 AForm 4 → | May 15, 4:33 pm EDT | Lisa L TroeDirector | 4,886 | — | — | 26,169 | — | plan? |
| May 13, 2015 AForm 4 → | May 15, 4:26 pm EDT | Robert F SpillaneDirector | 4,886 | — | — | 26,169 | — | plan? |
| Apr 20, 2015 AForm 4 → | Apr 22, 5:19 pm EDT | Gregory R RaifmanPresident, Director | 27,005 | — | — | 285,503 | — | plan? |
| Apr 20, 2015 AForm 4 → | Apr 22, 5:18 pm EDT | Todd L TappinCFO & COO | 25,545 | — | — | 255,532 | — | plan? |
| Apr 20, 2015 AForm 4 → | Apr 22, 5:16 pm EDT | Frank AddanteSee remarks, Director | 29,194 | — | — | 2,675,432 | — | plan? |
| Apr 13, 2015 SForm 4 → | Apr 14, 6:53 pm EDT | Frank AddanteSee remarks, Director | 38,999 | $16.78 | $654,403 | 2,646,238 | −1.45% | plan? |
| Apr 6, 2015 SForm 4 → | Apr 8, 6:18 pm EDT | Frank AddanteSee remarks, Director | 93,001 | $17.37 | $1,615,211 | 2,685,237 | −3.35% | plan? |
| Mar 2, 2015 SForm 4 → | Mar 4, 6:29 pm EST | Xii A Delaware L P Mayfield +610% Owner | 283,354 | $19.14 | $5,423,616 | 53,815 | −84.0% | plan? |
| Feb 26, 2015 SForm 4 → | Mar 2, 5:21 pm EST | Xii A Delaware L P Mayfield +610% Owner | 241,725 | $19.07 | $4,610,517 | 58,065 | −80.6% | plan? |
| Feb 25, 2015 SForm 4 → | Feb 27, 6:06 pm EST | David DayChief Accounting Officer | 15,000 | $19.90 | $298,500 | 42,050 | −26.3% | plan? |
| Feb 25, 2015 MForm 4 → | Feb 27, 6:06 pm EST | David DayChief Accounting Officer | 15,000 | $7.80 | $117,000 | 57,050 | — | plan? |
| Feb 25, 2015 SForm 4 → | Feb 27, 5:58 pm EST | Todd L TappinCFO & COO | 19,788 | $20.04 | $396,552 | 229,987 | −7.92% | plan? |
| Feb 25, 2015 MForm 4 → | Feb 27, 5:58 pm EST | Todd L TappinCFO & COO | 19,788 | $7.80 | $154,346 | 249,775 | — | plan? |
| Feb 17, 2015 SForm 4 → | Feb 18, 9:36 pm EST | Gregory R RaifmanPresident, Director | 7,031 | $16.09 | $113,129 | 258,498 | −2.65% | plan? |
| Feb 17, 2015 SForm 4 → | Feb 18, 9:36 pm EST | Todd L TappinCFO & COO | 5,625 | $16.09 | $90,506 | 229,987 | −2.39% | plan? |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 14, 2026 MForm 4 → | Sep 16, 4:20 pm EDT | Robert F SpillaneDirector | 10,363 | — | — | 0 | — | |
| Sep 8, 2026 MForm 4 → | Sep 10, 4:39 pm EDT | Katie Seitz EvansSee Remarks | 13,546 | — | — | 0 | — | 10b5-1 |
| Aug 6, 2026 MForm 4 → | Aug 7, 5:14 pm EDT | Sean Patrick BuckleySee Remarks | 28,703 | — | — | 57,405 | — | 10b5-1 |
| Aug 6, 2026 MForm 4 → | Aug 7, 5:06 pm EDT | Katie Seitz EvansSee Remarks | 20,000 | — | — | 0 | — | 10b5-1 |
| Aug 6, 2026 MForm 4 → | Aug 7, 5:00 pm EDT | Michael G. BarrettCEO, Director | 293,968 | — | — | 0 | — | 10b5-1 |
| Jul 15, 2026 MForm 4 → | Jul 17, 5:00 pm EDT | Michael G. BarrettCEO, Director | 38,596 | — | — | 293,968 | — | 10b5-1 |
| Jun 29, 2026 MForm 4 → | Jul 1, 4:49 pm EDT | Michael G. BarrettCEO, Director | 75,000 | — | — | 332,564 | — | 10b5-1 |
| Jun 15, 2026 MForm 4 → | Jun 17, 6:44 pm EDT | Michael G. BarrettCEO, Director | 278,596 | — | — | 407,564 | — | 10b5-1 |
| Feb 22, 2019 AForm 4 → | Feb 22, 7:56 pm EST | Michael G. BarrettPresident and CEO, Director | 300,000 | — | — | 300,000 | — | |
| Feb 20, 2019 AForm 4 → | Feb 22, 7:57 pm EST | Adam Lee SorocaHead of Global Buyer Team | 134,000 | — | — | 134,000 | — | |
| Feb 20, 2019 AForm 4 → | Feb 22, 7:55 pm EST | Eve FilipCo-General Counsel | 52,000 | — | — | 52,000 | — | |
| Feb 20, 2019 AForm 4 → | Feb 22, 7:55 pm EST | Jonathan FeldmanCo-General Counsel & Secretary | 52,000 | — | — | 52,000 | — | |
| Feb 20, 2019 AForm 4 → | Feb 22, 7:54 pm EST | Joseph R PruszGlobal Chief Revenue Officer | 111,000 | — | — | 111,000 | — | |
| Feb 20, 2019 AForm 4 → | Feb 22, 7:53 pm EST | Thomas KershawChief Technology Officer | 179,000 | — | — | 179,000 | — | |
| Feb 20, 2019 AForm 4 → | Feb 22, 7:53 pm EST | David DayCFO | 161,000 | — | — | 161,000 | — | |
| Aug 15, 2018 AForm 4 → | Aug 17, 7:46 pm EDT | Lisa L TroeDirector | 9,429 | — | — | 9,429 | — | |
| Aug 15, 2018 AForm 4 → | Aug 17, 7:43 pm EDT | Robert F SpillaneDirector | 9,429 | — | — | 9,429 | — | |
| Aug 15, 2018 AForm 4 → | Aug 17, 7:40 pm EDT | Sumant MandalDirector | 9,429 | — | — | 9,429 | — | |
| Aug 15, 2018 AForm 4 → | Aug 17, 7:37 pm EDT | Lewis W ColemanDirector | 9,429 | — | — | 9,429 | — | |
| Aug 15, 2018 AForm 4 → | Aug 17, 7:34 pm EDT | Robert J FrankenbergDirector | 9,429 | — | — | 9,429 | — | |
| Mar 15, 2018 AForm 4 → | Mar 16, 9:37 pm EDT | Adam Lee SorocaHead of Global Buyer Team | 42,130 | — | — | 42,130 | — | |
| Mar 15, 2018 AForm 4 → | Mar 16, 9:36 pm EDT | Joseph R PruszGlobal Chief Revenue Officer | 42,130 | — | — | 42,130 | — | |
| Mar 15, 2018 AForm 4 → | Mar 16, 9:36 pm EDT | Thomas KershawChief Technology Officer | 86,667 | — | — | 86,667 | — | |
| Mar 15, 2018 AForm 4 → | Mar 16, 9:35 pm EDT | David DayCFO | 41,817 | — | — | 41,817 | — | |
| Mar 15, 2018 AForm 4 → | Mar 16, 9:35 pm EDT | Brian W CoppleGeneral Counsel and Secretary | 40,560 | — | — | 40,560 | — | |
| Mar 15, 2018 AForm 4 → | Mar 16, 9:35 pm EDT | Michael G. BarrettPresident and CEO, Director | 300,000 | — | — | 300,000 | — | |
| May 23, 2017 AForm 4 → | May 25, 8:38 pm EDT | Lisa L TroeDirector | 10,363 | — | — | 10,363 | — | |
| May 23, 2017 AForm 4 → | May 25, 8:36 pm EDT | Sumant MandalDirector | 10,363 | — | — | 10,363 | — | |
| May 23, 2017 AForm 4 → | May 25, 8:34 pm EDT | Robert J FrankenbergDirector | 10,363 | — | — | 10,363 | — | |
| May 23, 2017 AForm 4 → | May 25, 8:32 pm EDT | Lewis W ColemanDirector | 10,363 | — | — | 10,363 | — | |
| May 23, 2017 AForm 4 → | May 25, 8:30 pm EDT | Robert F SpillaneDirector | 10,363 | — | — | 10,363 | — | |
| Mar 17, 2017 AForm 4/A → | Apr 26, 9:25 pm EDT | Michael G. BarrettPresident and CEO, Director | 686,160 | — | — | 686,160 | — | |
| Mar 17, 2017 AForm 4 → | Mar 21, 9:31 pm EDT | Michael G. BarrettPresident and CEO | 634,780 | — | — | 634,780 | — | amended |
| Mar 15, 2017 AForm 4 → | Mar 17, 9:49 pm EDT | Thomas KershawChief Technology Officer | 66,667 | — | — | 66,667 | — | |
| Mar 15, 2017 AForm 4 → | Mar 17, 9:48 pm EDT | Brian W CoppleGeneral Counsel and Secretary | 31,200 | — | — | 31,200 | — | |
| Mar 15, 2017 AForm 4 → | Mar 17, 9:46 pm EDT | David DayCFO & CAO | 32,167 | — | — | 32,167 | — | |
| Nov 15, 2016 AForm 4 → | Nov 17, 9:36 pm EST | Thomas KershawSee remarks | 50,000 | — | — | 50,000 | — | |
| May 26, 2016 AForm 4 → | Jun 1, 9:18 pm EDT | Sumant MandalDirector | 12,557 | — | — | 12,557 | — | late |
| May 26, 2016 AForm 4 → | Jun 1, 9:12 pm EDT | Lewis W ColemanDirector | 12,557 | — | — | 12,557 | — | late |
| May 26, 2016 AForm 4 → | Jun 1, 9:10 pm EDT | Lisa L TroeDirector | 12,557 | — | — | 12,557 | — | late |
| May 26, 2016 AForm 4 → | Jun 1, 9:09 pm EDT | Robert J FrankenbergDirector | 12,557 | — | — | 12,557 | — | late |
| May 26, 2016 AForm 4 → | Jun 1, 9:07 pm EDT | Robert F SpillaneDirector | 12,557 | — | — | 12,557 | — | late |
| May 24, 2016 GForm 4 → | Nov 17, 9:32 pm EST | Gregory R RaifmanPresident, Director | 1,414,338 | — | — | 58,884 | — | late |
| May 17, 2016 MForm 4 → | May 17, 9:54 pm EDT | Todd L TappinCFO & COO | 38,460 | — | — | 111,302 | — | |
| May 16, 2016 GForm 4 → | May 17, 9:06 pm EDT | Brian W CoppleGeneral Counsel and Secretary | 389,000 | — | — | 19,500 | — | |
| Apr 28, 2016 MForm 4 → | Apr 29, 5:23 pm EDT | Todd L TappinCFO & COO | 12,368 | — | — | 263,247 | — | |
| Apr 20, 2016 MForm 4 → | Apr 22, 5:04 pm EDT | David DayChief Accounting Officer | 1,000 | — | — | 140,000 | — | |
| Apr 14, 2016 MForm 4/A → | May 17, 9:12 pm EDT | Todd L TappinCFO & COO | 211,732 | — | — | 162,130 | — | |
| Apr 14, 2016 MForm 4 → | Apr 18, 9:00 pm EDT | Todd L TappinCFO & COO | 211,732 | — | — | 162,130 | — | amended |
| Apr 14, 2016 MForm 4 → | Apr 18, 9:00 pm EDT | David DayChief Accounting Officer | 19,000 | — | — | 141,000 | — | |
| Mar 8, 2016 AForm 4 → | Mar 10, 8:15 pm EST | Lewis W ColemanDirector | 33,284 | — | — | 4,455 | — | |
| Mar 8, 2016 MForm 4 → | Mar 10, 7:01 pm EST | Gregory R RaifmanPresident, Director | 200,090 | — | — | 585,700 | — | |
| Mar 8, 2016 MForm 4 → | Mar 10, 7:00 pm EST | Todd L TappinCFO & COO | 200,000 | — | — | 373,862 | — | |
| Feb 17, 2016 AForm 4 → | Feb 18, 6:51 pm EST | Frank AddanteSee Remarks, Director | 88,906 | — | — | 88,906 | — | |
| Feb 17, 2016 AForm 4 → | Feb 18, 6:48 pm EST | Todd L TappinCFO & COO | 56,286 | — | — | 56,286 | — | |
| Feb 17, 2016 AForm 4 → | Feb 18, 6:47 pm EST | Gregory R RaifmanPresident, Director | 58,884 | — | — | 58,884 | — | |
| May 19, 2015 AForm 4 → | May 19, 9:05 pm EDT | Brian W CoppleGeneral Counsel and Secretary | 19,500 | — | — | 19,500 | — | |
| May 19, 2015 AForm 4 → | May 19, 9:04 pm EDT | Frank AddanteSee remarks, Director | 94,558 | — | — | 94,558 | — | |
| May 19, 2015 AForm 4 → | May 19, 9:02 pm EDT | David DayChief Accounting Officer | 9,300 | — | — | 9,300 | — | |
| May 19, 2015 AForm 4 → | May 19, 9:01 pm EDT | Todd L TappinCFO & COO | 59,864 | — | — | 59,864 | — | |
| May 19, 2015 AForm 4 → | May 19, 8:58 pm EDT | Gregory R RaifmanPresident, Director | 62,585 | — | — | 62,585 | — | |
| May 13, 2015 AForm 4 → | May 15, 4:50 pm EDT | Sumant MandalDirector | 11,759 | — | — | 11,759 | — | |
| May 13, 2015 AForm 4 → | May 15, 4:38 pm EDT | Robert J FrankenbergDirector | 11,759 | — | — | 11,759 | — | |
| May 13, 2015 AForm 4 → | May 15, 4:33 pm EDT | Lisa L TroeDirector | 11,759 | — | — | 11,759 | — | |
| May 13, 2015 AForm 4 → | May 15, 4:26 pm EDT | Robert F SpillaneDirector | 11,759 | — | — | 11,759 | — | |
| Feb 25, 2015 MForm 4 → | Feb 27, 6:06 pm EST | David DayChief Accounting Officer | 15,000 | — | — | 160,000 | — | |
| Feb 25, 2015 MForm 4 → | Feb 27, 5:58 pm EST | Todd L TappinCFO & COO | 19,788 | — | — | 573,862 | — |