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MGNI · GOOGL in the 13F filings

Two to four stocks side by side among the 95 tracked managers: who lists them, how that has moved, who bought and sold in a quarter, and which managers hold more than one.

MGNIGOOGL
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023

Holders over time

Tracked managers listing each stock every quarter, at least, or their combined reported value. A gap is a quarter in which no tracked manager listed it. Click a quarter to compare there.
  • MGNI
  • GOOGL
020406080202120222023202420252026
Holders and value by quarter
QuarterMGNIGOOGL
Q3 2020none listed holders, n.a.52 holders, $65.2bn
Q4 20201 holders, $5.7m57 holders, $83.4bn
Q1 20212 holders, $94m56 holders, $96.9bn
Q2 20215 holders, $88m59 holders, $113bn
Q3 20213 holders, $43m59 holders, $123bn
Q4 20214 holders, $38m56 holders, $130bn
Q1 20221 holders, $1.2m56 holders, $117bn
Q2 20222 holders, $1.9m49 holders, $88.7bn
Q3 20223 holders, $5.4m53 holders, $76.8bn
Q4 20221 holders, $4.2m55 holders, $122bn
Q1 20232 holders, $3.1m54 holders, $79.8bn
Q2 20232 holders, $6.6m55 holders, $93.0bn
Q3 20231 holders, $1.7m59 holders, $103bn
Q4 2023none listed holders, n.a.57 holders, $105bn
Q1 2024none listed holders, n.a.58 holders, $112bn
Q2 20241 holders, $21m56 holders, $132bn
Q3 20241 holders, $50m58 holders, $119bn
Q4 20242 holders, $129m58 holders, $141bn
Q1 20253 holders, $163m61 holders, $106bn
Q2 20256 holders, $520m57 holders, $117bn
Q3 20252 holders, $165m61 holders, $174bn
Q4 20254 holders, $367m62 holders, $236bn
Q1 20263 holders, $84m65 holders, $233bn
Q2 20265 holders, $104m64 holders, $309bn
MGNI

Magnite Inc

Holders
3
Reported value
$84m
Buyers
22
Sellers
7

Breadth +15 among 91 comparable managers.

Software and IT servicesInternet, programming and data services
GOOGL

Alphabet Inc

Holders
65
Reported value
$233bn
Buyers
28
Sellers
37

Breadth -9 among 91 comparable managers.

Software and IT servicesCloud and enterprise software · L3VLUPConsumer and digital platforms · L3VLUPInternet, programming and data services

Who holds both, Q1 2026

Among the 65 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only MGNI (0)

None.

Only GOOGL (62)

Acadian Asset Management LLC, AllianceBernstein LP, AQR Capital Management LLC, Arrowstreet Capital LP, Artisan Partners LP, Baillie Gifford & Co, Balyasny Asset Management LLC, Berkshire Hathaway Inc, Brevan Howard Capital Management LP, Bridgewater Associates LP, Capital World Investors, Caxton Associates LLP, Citadel Advisors LLC, Coatue Management LLC, D. E. Shaw & Co., D1 Capital Partners LP, Dodge & Cox, ExodusPoint Capital Management LP, Fidelity (FMR LLC), Freestone Grove Partners LP, GAMCO Investors Inc, Harris Associates LP, Holocene Advisors LP, Hudson Bay Capital Management LP, Invesco Ltd, and 37 more

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. Buyers and sellers count comparable managers (those that filed both quarters) by shares, so a rise in value with no rise in shares is the price. Large books are listed to their largest positions. These are 95 tracked managers, not the institutional market.

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