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JANE STREET GROUP, LLC

Position in CMCSA — Comcast Corp

CIK 1595888 NEW YORK, NY

Position in CMCSA

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$3,198,264
-$36,096,355 QoQ
Shares Held
111,399
-92.1% QoQ
Ownership
0.003%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in CMCSA Over Time

Shares Held

Position Value (USD)

Derivatives in CMCSA

reported options exposure · as of Mar 31, 2026
CallValue
$143,260,029
CallShares
4,989,900
PutValue
$22,712,481
PutShares
791,100

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Telecom Services

Communication Services · as of Mar 31, 2026

JANE STREET GROUP, LLC holds $1,462,291,663 across 33 Telecom Services names. CMCSA ranks #17 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in CMCSA

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $22,712,481 791,100
2026-03-31 $3,198,264 111,399
2026-03-31 $143,260,029 4,989,900
2025-12-31 $34,968,752 1,248,300
2025-12-31 $115,621,268 4,127,400
2025-12-31 $39,294,619 1,402,723
2025-09-30 $18,230,637 619,100
2025-09-30 $66,598,218 2,261,630
2025-09-30 $88,709,087 3,012,500
2025-06-30 $123,523,442 3,692,900
2025-06-30 $9,562,438 285,882
2025-06-30 $31,110,821 930,100
2025-03-31 $61,229,024 1,770,500
2025-03-31 $116,198,544 3,360,000
2025-03-31 $29,169,569 843,468
2024-12-31 $85,710,541 2,436,800
2024-12-31 $50,493,806 1,435,568
2024-12-31 $96,565,052 2,745,400
2024-09-30 $69,208,118 1,767,899
2024-09-30 $76,986,686 1,966,600
2024-09-30 $165,776,224 4,234,700
2024-06-30 $25,717,857 700,740
2024-03-31 $47,673,184 1,173,410
2023-12-31 $87,408,062 2,126,898
2023-09-30 $109,149,216 2,626,570
2023-06-30 $55,617,833 1,428,259
2023-03-31 $194,796,558 5,482,671
2022-12-31 $73,736,644 2,249,845
2022-09-30 $77,564,835 2,821,740
2022-06-30 $65,998,539 1,794,609
2022-03-31 $111,687,764 2,545,300
2022-03-31 $28,586,679 651,474
2022-03-31 $155,651,136 3,547,200
2021-12-31 $18,599,537 394,312
2021-12-31 $120,754,176 2,560,000
2021-12-31 $66,778,002 1,415,700
2021-09-30 $26,241,394 500,618
2021-09-30 $31,618,537 603,200
2021-09-30 $99,379,286 1,895,900
2021-06-30 $66,751,279 1,249,100
2021-06-30 $27,114,719 507,391
2021-06-30 $210,909,674 3,946,700
2021-03-31 $12,791,516 252,237
2021-03-31 $127,744,283 2,519,000
2021-03-31 $25,442,360 501,700
2020-12-31 $99,231,059 2,020,600
2020-12-31 $26,863,005 547,000
2020-12-31 $14,765,370 300,661
2020-09-30 $23,494,182 541,900
2020-09-30 $19,260,762 444,255