Magnetar Financial LLC

Position in CMCSA — Comcast Corp

CIK 1352851 EVANSTON, IL

Position in CMCSA

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$2,215,661

+$1,776,255 QoQ

Shares Held

90,251

+489.7% QoQ

Ownership

0.003%

of shares outstanding

% of Portfolio

0.02%

of 13F equity value

Holder Rank

#617

of 1,878 holders

Holding Since

Dec 2020

12 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Communication Services · as of Jun 30, 2026

Magnetar Financial LLC holds $23,956,842 across 11 Telecom Services names. CMCSA ranks #3 (9.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	IRDM	Iridium Communications Inc.	153,186	$8,402,251
2	GSAT	Globalstar, Inc.	67,673	$5,501,137
3	CMCSA	Comcast Corp This page	90,251	$2,215,661
4	IDT	Idt Corp	37,985	$2,209,207
5	KYIV	Kyivstar Group Ltd.	102,356	$1,655,096
6	TMUS	T-Mobile US, Inc.	8,842	$1,483,068
7	TDS	Telephone & Data Systems Inc /De/	24,397	$902,932
8	RCI	Rogers Communications Inc	23,466	$762,644

12 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$2,215,661	90,251	+489.7%	Shares	Sole	2026-08-14
2026-03-31	$439,406	15,305	-82.3%	Shares	Sole	2026-05-13
2025-12-31	$2,591,101	86,688	-69.8%	Shares	Sole	2026-02-17
2025-09-30	$9,005,868	286,629	-0.2%	Shares	Sole	2025-11-13
2025-06-30	$10,252,872	287,276	+939.6%	Shares	Sole	2025-08-12
2025-03-31	$1,019,618	27,632	-82.4%	Shares	Sole	2025-05-15
2024-12-31	$5,897,278	157,135	+51.6%	Shares	Sole	2025-02-11
2024-03-31	$4,493,701	103,661	+7.7%	Shares	Sole	2024-05-15
2023-12-31	$4,221,699	96,276	+39.3%	Shares	Sole	2024-02-13
2023-06-30	$2,871,357	69,106	+1281.6%	Shares	Sole	2023-08-11
2021-06-30	$285,213	5,002	-88.5%	Shares	Sole	2021-08-06
2020-12-31	$2,271,070	43,341	—	Shares	Sole	2021-02-12
No filing history on record for this holder in this stock.