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Form 4 reporting owner · CIK 0001100612

BARRETT MICHAEL G.

CEO

48Open-market trades
2Tickers
−7.00%Avg 90d after buys
−9.09%Avg 90d after sales
+33.5%Avg 180d after buys
−10.3%Avg 180d after sales

MGNI price and prints

MAGNITE, INC. 46 open-market prints by this insider, 8/7/20188/6/2026. Triangles mark only their Form 4 purchases and sales. Full MGNI chart

MGNI adjusted close▲ buy▼ sale
2.7817.5332.2947.0461.802026-08-06 sell BARRETT MICHAEL G.2026-07-15 sell BARRETT MICHAEL G.2026-06-29 sell BARRETT MICHAEL G.2026-06-16 sell BARRETT MICHAEL G.2026-06-15 sell BARRETT MICHAEL G.2025-08-18 sell BARRETT MICHAEL G.2025-07-15 sell BARRETT MICHAEL G.2025-06-24 sell BARRETT MICHAEL G.2025-06-18 sell BARRETT MICHAEL G.2025-06-16 sell BARRETT MICHAEL G.2024-12-04 sell BARRETT MICHAEL G.2024-11-25 sell BARRETT MICHAEL G.2024-11-15 sell BARRETT MICHAEL G.2024-11-11 sell BARRETT MICHAEL G.2024-08-15 sell BARRETT MICHAEL G.2024-07-15 sell BARRETT MICHAEL G.2024-05-15 sell BARRETT MICHAEL G.2024-03-15 sell BARRETT MICHAEL G.2023-11-15 sell BARRETT MICHAEL G.2023-08-16 sell BARRETT MICHAEL G.2023-08-15 sell BARRETT MICHAEL G.2023-07-11 sell BARRETT MICHAEL G.2023-05-31 sell BARRETT MICHAEL G.2023-05-16 sell BARRETT MICHAEL G.2023-03-15 sell BARRETT MICHAEL G.2022-11-15 sell BARRETT MICHAEL G.2021-08-16 sell BARRETT MICHAEL G.2021-05-17 sell BARRETT MICHAEL G.2021-04-05 sell BARRETT MICHAEL G.2020-11-16 sell BARRETT MICHAEL G.2020-05-20 sell BARRETT MICHAEL G.2020-05-19 sell BARRETT MICHAEL G.2020-05-18 sell BARRETT MICHAEL G.2019-11-18 sell BARRETT MICHAEL G.2019-05-16 sell BARRETT MICHAEL G.2018-08-07 buy BARRETT MICHAEL G.2018-07-172026-09-18

MGNI trades

Clear
DateForm 4TickerSideSharesValue90d180d
8/6/2026
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL293,968$6.68M−9.04%hist−9.20%hist
7/15/2026
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL38,596$785.4K−9.04%hist−9.20%hist
6/29/2026
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL75,000$1.46M−9.04%hist−9.20%hist
6/16/2026
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL100,000$1.75M−28.5%−9.20%hist
6/15/2026
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL178,596$2.96M−42.3%−9.20%hist
8/18/2025
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL35,951$857.4K+45.1%+52.4%
7/15/2025
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL70,900$1.65M+25.7%+30.7%
6/24/2025
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL300,000$6.00M−20.5%+18.0%
6/18/2025
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL30,000$570.0K−22.6%+15.8%
6/16/2025
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL45,000$799.2K−27.7%+14.7%
12/4/2024
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL147,996$2.59M+16.4%+4.85%
11/25/2024
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL27,004$476.1K−6.57%+3.01%
11/15/2024
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL100,000$1.61M−23.0%−4.67%
11/11/2024
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL25,000$375.0K−30.3%−1.96%
8/15/2024
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL75,000$947.3K−34.3%−61.6%
7/15/2024
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL100,000$1.50M+19.0%−1.44%
5/15/2024
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL75,000$676.5K−27.8%−61.4%
3/15/2024
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL75,000$840.8K−22.5%−14.2%
11/15/2023
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL75,000$585.0K−12.5%−15.8%
8/16/2023
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL35,869$298.1K+8.15%−15.7%
8/15/2023
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL75,000$639.0K+18.3%−13.3%
7/11/2023
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL25,000$375.5K+51.1%+37.8%
5/31/2023
Form 410b5-1
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL75,000$876.8K+32.1%+30.0%
5/16/2023
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL24,679$268.5K+19.6%+34.8%
3/15/2023
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL75,000$629.3K−61.3%+3.93%
11/15/2022
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL7,214$85.6K−4.27%−0.70%
11/15/2022
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL67,786$782.9K−4.27%−0.70%
8/16/2021
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL9,729$277.0K+19.4%+52.4%
8/16/2021
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL6,341$170.1K+19.4%+52.4%
8/16/2021
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL65,271$1.82M+19.4%+52.4%
5/17/2021
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL105,138$2.73M−9.23%+12.0%
4/5/2021
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL16,933$682.1K+14.8%+36.0%
4/5/2021
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL2,841$120.4K+14.8%+36.0%
4/5/2021
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL518$22.5K+14.8%+36.0%
4/5/2021
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL2,926$121.5K+14.8%+36.0%
4/5/2021
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL51,782$2.04M+14.8%+36.0%
11/16/2020
MGNIMAGNITE, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL95,053$1.05M−404.1%−128.1%
5/20/2020
MGNIRUBICON PROJECT, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL48,174$247.1K−42.8%−115.2%
5/20/2020
MGNIRUBICON PROJECT, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL54,239$278.2K−42.8%−115.2%
5/19/2020
MGNIRUBICON PROJECT, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL38,630$202.0K−48.2%−120.7%
5/19/2020
MGNIRUBICON PROJECT, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL38,630$202.0K−48.2%−120.7%
5/18/2020
MGNIRUBICON PROJECT, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL41,409$224.9K−38.4%−106.1%
5/18/2020
MGNIRUBICON PROJECT, INCCEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL41,409$224.9K−38.4%−106.1%
11/18/2019
MGNIRUBICON PROJECT, INCPresident and CEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL83,395$631.3K−51.0%+30.6%
5/16/2019
MGNIRUBICON PROJECT, INCPresident and CEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
SELL89,435$552.7K−53.1%−33.1%
8/7/2018
MGNIRUBICON PROJECT, INCPresident and CEO
MAGNITE, INC · Services-Computer Programming, Data Processing, Etc.IndustryServices-Computer Programming, Data Processing, Etc.Mkt cap (est.)$11.22BPrice$25.1552w high$25.6352w low$11.20
BUY100,000$342.0K−7.00%+33.5%

Chart uses split-adjusted closes from the first print through the latest available bar. Returns use the last close on or before the trade date and the first close on or after 90 and 180 calendar days. Sales are signed so a declining price is a positive result for the seller. Not investment advice.