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Who

Michael G. Barrett

Director

Company insider

Files Form 4 as: Director, OUTFRONT Media; CEO, Magnite; President and CEO, Millennial Media; Director, Tremor Video; EVP and Chief Revenue Officer, Yahoo.

In numbers

Trades disclosed
165
Buys
3
Sells
38
Bought
$1.3M
Sold
$62.3M
Companies
5
Companies where not an officer
2
First trade
26 Jul 2012
Last trade
18 Sep 2026
Last filed
21 Sep 2026

Companies traded

Where they are an officer
MGNI MagniteDirector, Officer · IT Services & Consulting · last 15 Aug 20261 buy · 38 sells
Millennial MediaDirector, Officer · last 23 Oct 20152 buys · 0 sells
YahooOfficer · last 26 Jul 20120 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
OUT OUTFRONT MediaDirector · REITs · last 18 Sep 20260 buys · 0 sells
Tremor VideoDirector · last 27 Sep 20130 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
30Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
18 Sep 2026filed 21 Sep 2026OUT OUTFRONT MediaREITsSEC FORM 4 Code M—6,047 at $0.00filing
18 Sep 2026filed 21 Sep 2026OUT OUTFRONT MediaREITsSEC FORM 4 Code A—265 at $0.00filing
18 Sep 2026filed 21 Sep 2026OUT OUTFRONT Mediaoption or derivative · REITsSEC FORM 4 Code M—6,047 at $0.00filing
18 Sep 2026filed 21 Sep 2026OUT OUTFRONT Mediaoption or derivative · REITsSEC FORM 4 Code M—6,047 at $0.00filing
18 Sep 2026filed 21 Sep 2026OUT OUTFRONT MediaREITsSEC FORM 4 Code M—6,047 at $0.00filing
18 Sep 2026filed 21 Sep 2026OUT OUTFRONT MediaREITsSEC FORM 4 Code A—265 at $0.00filing
15 Aug 2026filed 18 Aug 2026MGNI MagniteIT Services & ConsultingSEC FORM 4 Code F$257K10,404 at $24.73filing
15 Aug 2026filed 18 Aug 2026MGNI MagniteIT Services & ConsultingSEC FORM 4 Code F$257K10,404 at $24.73filing
6 Aug 2026filed 7 Aug 2026MGNI MagniteIT Services & ConsultingSEC FORM 4 Code M$1.7M293,968 at $5.80filing
6 Aug 2026filed 7 Aug 2026MGNI MagniteIT Services & ConsultingSEC FORM 4 Sold$6.7M293,968 at $22.72filing
6 Aug 2026filed 7 Aug 2026MGNI Magniteoption or derivative · IT Services & ConsultingSEC FORM 4 Code M—293,968 at $0.00filing
6 Aug 2026filed 7 Aug 2026MGNI Magniteoption or derivative · IT Services & ConsultingSEC FORM 4 Code M—293,968 at $0.00filing
6 Aug 2026filed 7 Aug 2026MGNI MagniteIT Services & ConsultingSEC FORM 4 Code M$1.7M293,968 at $5.80filing
6 Aug 2026filed 7 Aug 2026MGNI MagniteIT Services & ConsultingSEC FORM 4 Sold$6.7M293,968 at $22.72filing
15 Jul 2026filed 17 Jul 2026MGNI MagniteIT Services & ConsultingSEC FORM 4 Code M$224K38,596 at $5.80filing
15 Jul 2026filed 17 Jul 2026MGNI MagniteIT Services & ConsultingSEC FORM 4 Sold$785K38,596 at $20.35filing
15 Jul 2026filed 17 Jul 2026MGNI Magniteoption or derivative · IT Services & ConsultingSEC FORM 4 Code M—38,596 at $0.00filing
15 Jul 2026filed 17 Jul 2026MGNI Magniteoption or derivative · IT Services & ConsultingSEC FORM 4 Code M—38,596 at $0.00filing
15 Jul 2026filed 17 Jul 2026MGNI MagniteIT Services & ConsultingSEC FORM 4 Code M$224K38,596 at $5.80filing
15 Jul 2026filed 17 Jul 2026MGNI MagniteIT Services & ConsultingSEC FORM 4 Sold$785K38,596 at $20.35filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Technology39
Not placed2

Buys in green, sells in red, by the company’s sector.

Related people

Paul CaineDirector · Director at Magnite, filing Form 4 there in the last year
Brian GephartChief Financial Officer · Chief Financial Officer at Magnite, filing Form 4 there in the last year
Haas SullivanChief Accounting Officer · Chief Accounting Officer at Magnite, filing Form 4 there in the last year
Douglas S. KnopperDirector · Director at Magnite, filing Form 4 there in the last year
Robert F. SpillaneDirector · Director at Magnite, filing Form 4 there in the last year
David BuonaseraChief Technology Officer · Also traded MGNI in the last 90 days
Katie Seitz EvansOfficer · Also traded MGNI in the last 90 days
Aaron SaltzChief Legal Officer · Also traded MGNI in the last 90 days