moatshark My

All holdings

Magnite

MGNI

Source: the SEC Form 13F filings of the managers we follow, latest for Q3 2026. How we use them

Managers holding
1
In their latest 13F (Q3 2026)
See who
Value held
$12.7m
Combined value at quarter end
Last quarter
1 bought
0 sold or trimmed
Price at Q2 ’26 end
$18.98
+59.8% in the quarter

Prices here are quarter-end prices implied by the 13F filings. Today’s price on Yahoo Finance

Share price change by quarter

-44.8%Q3 ’23
-28.3%Q1 ’25
+111.4%Q2 ’25
-9.7%Q3 ’25
-25.5%Q4 ’25
-26.8%Q1 ’26
+59.8%Q2 ’26
Q3 ’23: -44.8%; Q1 ’25: -28.3%; Q2 ’25: +111.4%; Q3 ’25: -9.7%; Q4 ’25: -25.5%; Q1 ’26: -26.8%; Q2 ’26: +59.8%

Change in the quarter-end price implied by managers’ 13F filings, adjusted for stock splits. Excludes dividends.

Managers holding it, by quarter

0Q4 ’23
0Q1 ’24
0Q2 ’24
0Q3 ’24
1Q4 ’24
1Q1 ’25
2Q2 ’25
1Q3 ’25
1Q4 ’25
1Q1 ’26
1Q2 ’26
0Q3 ’26
Q4 ’23: 0; Q1 ’24: 0; Q2 ’24: 0; Q3 ’24: 0; Q4 ’24: 1; Q1 ’25: 1; Q2 ’25: 2; Q3 ’25: 1; Q4 ’25: 1; Q1 ’26: 1; Q2 ’26: 1; Q3 ’26: 0

Counts the managers on this site whose 13F for that quarter includes Magnite.

Who holds it

Each manager’s latest 13F, sorted by how much of their portfolio it is. Changes are against their previous quarter.

Managers holding Magnite
First Eagle Investment Management0.0%$12.7m$12.7mAdded +49%7 qtrs

Download the holders: CSV · JSON · Markdown

Directors buying and selling

Open-market trades by directors, officers and 10% holders over the last 12 months. How this works
From their Form 4 filings with the SEC. Grants, option exercises and shares sold to pay tax are left out.
Insider purchases and sales of Magnite
Bought or soldFiling
12 Oct 2026Caine PaulDirector▼ Sold12,500$25.29$316kForm 4
17 Sep 2026Knopper Douglas SDirector▼ Sold37,337$26.28$981kForm 4
17 Sep 2026Caine PaulDirector▼ Sold7,500$26.50$199kForm 4
14 Sep 2026Spillane Robert FDirector▼ Sold10,363$23.76$246kForm 4
14 Sep 2026Buonasera DavidCHIEF TECHNOLOGY OFFICER▼ Sold1,165$24.00$28kForm 4
11 Sep 2026Evans Katie SeitzSee Remarks▼ Sold13,997$24.00$336kForm 4
10 Sep 2026Saltz AaronCHIEF LEGAL OFFICER▼ Sold40,000$23.41$936kForm 4
10 Sep 2026Caine PaulDirector▼ Sold5,000$23.53$118kForm 4
9 Sep 2026Evans Katie SeitzSee Remarks▼ Sold11,100$23.46$260kForm 4
8 Sep 2026Evans Katie SeitzSee Remarks▼ Sold32,285$23.63$763kForm 4
2 Sep 2026Buonasera DavidCHIEF TECHNOLOGY OFFICER▼ Sold1,043$25.00$26kForm 4
1 Sep 2026Buonasera DavidCHIEF TECHNOLOGY OFFICER▼ Sold5,371$23.42$126kForm 4
28 Aug 2026Harden Sarah PatriciaDirector▼ Sold18,436$24.00$442kForm 4
26 Aug 2026Harden Sarah PatriciaDirector▼ Sold30,550$23.31$712kForm 4
18 Aug 2026Buckley Sean PatrickSee Remarks▼ Sold2,759$25.00$69kForm 4
17 Aug 2026Buckley Sean PatrickSee Remarks▼ Sold8,271$24.31$201kForm 4
14 Aug 2026Caine PaulDirector▼ Sold7,500$25.00$188kForm 4
10 Aug 2026Gephart BrianCHIEF ACCOUNTING OFFICER▼ Sold12,479$24.68$308kForm 4
10 Aug 2026Lam RachelDirector▼ Sold10,000$24.16$242kForm 4
10 Aug 2026Caine PaulDirector▼ Sold5,000$24.35$122kForm 4

About the company

Sector
Technology · Services-Computer Programming, Data Processing, Etc.
Incorporated in
Delaware
Financial year ends
31 December
Shares outstanding
143m at 29 Jul 2026
SEC filings
Annual reports and other filings on EDGAR

Revenue and profit

$83.8m2013
$248m2015
$156m2017
$156m2019
$468m2021
$620m2023
$714m2025
2013: $83.8m; 2014: $125m; 2015: $248m; 2016: $278m; 2017: $156m; 2018: $125m; 2019: $156m; 2020: $222m; 2021: $468m; 2022: $577m; 2023: $620m; 2024: $668m; 2025: $714m
Magnite revenue and net income by year
YearRevenueNet income
2025$714m$145m
2024$668m$22.8m
2023$620m−$159m
2022$577m−$130m
2021$468m$65k
2020$222m−$53.4m
2019$156m−$25.5m
2018$125m−$61.8m
2017$156m−$155m
2016$278m−$18.1m
2015$248m$422k
2014$125m−$18.7m
2013$83.8m−$9.2m

From the company’s XBRL financial statements filed with the SEC, for each financial year. Gaps mean the company didn’t report that figure in a standard form.