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RBBN · AMZN 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.

RBBNAMZN
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.
  • RBBN
  • AMZN
020406080202120222023202420252026
Holders and value by quarter
QuarterRBBNAMZN
Q3 2020none listed holders, n.a.63 holders, $195bn
Q4 2020none listed holders, n.a.65 holders, $198bn
Q1 2021none listed holders, n.a.65 holders, $193bn
Q2 2021none listed holders, n.a.66 holders, $221bn
Q3 2021none listed holders, n.a.59 holders, $199bn
Q4 2021none listed holders, n.a.66 holders, $209bn
Q1 20221 holders, $37k66 holders, $201bn
Q2 2022none listed holders, n.a.58 holders, $125bn
Q3 2022none listed holders, n.a.60 holders, $136bn
Q4 20221 holders, $38m56 holders, $93.6bn
Q1 20231 holders, $47m61 holders, $112bn
Q2 20231 holders, $64m64 holders, $144bn
Q3 20232 holders, $66m65 holders, $141bn
Q4 20232 holders, $70m69 holders, $172bn
Q1 20241 holders, $62m69 holders, $209bn
Q2 20241 holders, $76m70 holders, $224bn
Q3 20242 holders, $57m62 holders, $206bn
Q4 20242 holders, $76m68 holders, $250bn
Q1 20252 holders, $71m70 holders, $218bn
Q2 20253 holders, $74m71 holders, $253bn
Q3 20253 holders, $69m69 holders, $244bn
Q4 20252 holders, $49m74 holders, $280bn
Q1 2026none listed holders, n.a.70 holders, $261bn
Q2 2026none listed holders, n.a.72 holders, $305bn
RBBN

Ribbon Communications Inc

Holders
3
Reported value
$74m
Buyers
3
Sellers
0

Breadth +3 among 95 comparable managers.

Software and IT servicesCloud and enterprise software · L3VLUP
AMZN

Amazon Com Inc

Holders
71
Reported value
$253bn
Buyers
44
Sellers
27

Breadth +17 among 95 comparable managers.

Consumer discretionaryCloud and enterprise software · L3VLUPConsumer and digital platforms · L3VLUP

Who holds both, Q2 2025

Among the 72 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only RBBN (1)

First Eagle Investment Management LLC

Only AMZN (69)

Acadian Asset Management LLC, AllianceBernstein LP, Altimeter Capital Management LP, Appaloosa LP, AQR Capital Management LLC, ARK Investment 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 Research Global Investors, Capital World Investors, Caxton Associates LLP, Citadel Advisors LLC, Coatue Management LLC, D. E. Shaw & Co., D1 Capital Partners LP, Davidson Kempner Capital Management LP, Dodge & Cox, Egerton Capital UK LLP, Eisler Capital Management Ltd, ExodusPoint Capital Management LP, and 44 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.

Back to the 13F Explorer →