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IDT · CMCSA 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.

IDTCMCSA
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.
  • IDT
  • CMCSA
010203040202120222023202420252026
Holders and value by quarter
QuarterIDTCMCSA
Q3 2020none listed holders, n.a.32 holders, $40.8bn
Q4 2020none listed holders, n.a.35 holders, $45.9bn
Q1 2021none listed holders, n.a.38 holders, $49.8bn
Q2 20211 holders, $52m34 holders, $52.9bn
Q3 20211 holders, $56m33 holders, $51.4bn
Q4 20211 holders, $58m37 holders, $45.2bn
Q1 20221 holders, $43m38 holders, $40.3bn
Q2 20221 holders, $33m39 holders, $32.1bn
Q3 2022none listed holders, n.a.37 holders, $22.8bn
Q4 2022none listed holders, n.a.28 holders, $25.4bn
Q1 20231 holders, $34m26 holders, $28.7bn
Q2 2023none listed holders, n.a.25 holders, $29.4bn
Q3 2023none listed holders, n.a.32 holders, $30.6bn
Q4 20231 holders, $37m25 holders, $28.6bn
Q1 20241 holders, $41m26 holders, $26.8bn
Q2 20241 holders, $40m28 holders, $24.1bn
Q3 20241 holders, $43m33 holders, $27.0bn
Q4 20242 holders, $52m29 holders, $24.1bn
Q1 20252 holders, $58m33 holders, $24.1bn
Q2 20253 holders, $94m34 holders, $22.3bn
Q3 20253 holders, $77m34 holders, $18.9bn
Q4 20253 holders, $62m33 holders, $20.0bn
Q1 20262 holders, $48m28 holders, $20.1bn
Q2 20262 holders, $53m29 holders, $16.2bn
IDT

Idt Corp

Holders
1
Reported value
$43m
Buyers
1
Sellers
0

Breadth +1 among 94 comparable managers.

Communications and media
CMCSA

Comcast Corp New

Holders
33
Reported value
$27.0bn
Buyers
22
Sellers
10

Breadth +12 among 94 comparable managers.

Communications and media

Who holds both, Q3 2024

Among the 34 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Both (0)

No tracked manager lists every one of them.

Only IDT (1)

Renaissance Technologies LLC

Only CMCSA (33)

Acadian Asset Management LLC, AllianceBernstein LP, AQR Capital Management LLC, Arrowstreet Capital LP, Artisan Partners LP, Balyasny Asset Management LLC, Brevan Howard Capital Management LP, Bridgewater Associates LP, Capital Research Global Investors, Capital World Investors, Caxton Associates LLP, Citadel Advisors LLC, D. E. Shaw & Co., Dodge & Cox, ExodusPoint Capital Management LP, Fidelity (FMR LLC), First Eagle Investment Management LLC, GAMCO Investors Inc, Harris Associates LP, Invesco Ltd, Janus Henderson Group Ltd, Markel Group Inc, Marshall Wace LLP, MFS Investment Management, Millennium Management LLC, and 8 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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