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CITADEL ADVISORS LLC

Position in CCOI — Cogent Communications Holdings, Inc.

CIK 1423053 MIAMI, FL

Position in CCOI

as of Jun 30, 2026 · filed Sep 2, 2026
Position Value
$16,274,868
+$8,243,754 QoQ
Shares Held
1,172,541
+175.1% QoQ
Ownership
2.29%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#10
of 224 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CCOI Over Time

Shares Held

Position Value (USD)

Derivatives in CCOI

reported options exposure · as of Jun 30, 2026
CallValue
$3,607,412
CallShares
259,900
PutValue
$2,720,480
PutShares
196,000

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 Jun 30, 2026

CITADEL ADVISORS LLC holds $1,407,664,429 across 41 Telecom Services names. CCOI ranks #13 (1.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in CCOI

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $2,720,480 196,000
2026-06-30 $3,607,412 259,900
2026-06-30 $16,274,868 1,172,541
2026-03-31 $2,319,204 123,100
2026-03-31 $9,966,360 529,000
2026-03-31 $8,031,114 426,280
2025-12-31 $3,221,064 149,400
2025-12-31 $3,603,192 167,124
2025-12-31 $3,322,396 154,100
2025-09-30 $3,141,055 81,905
2025-09-30 $2,139,930 55,800
2025-09-30 $5,564,585 145,100
2025-06-30 $12,093,236 250,845
2025-06-30 $2,111,598 43,800
2025-06-30 $5,259,711 109,100
2025-03-31 $3,141,278 51,236
2025-03-31 $2,335,911 38,100
2025-03-31 $5,738,616 93,600
2024-12-31 $24,541,630 318,433
2024-12-31 $4,061,589 52,700
2024-12-31 $2,419,998 31,400
2024-09-30 $24,746,655 325,957
2024-09-30 $28,462,408 374,900
2024-09-30 $13,771,888 181,400
2024-06-30 $6,208,061 109,994
2024-06-30 $1,913,316 33,900
2024-06-30 $3,770,192 66,800
2024-03-31 $10,092,635 154,487
2024-03-31 $1,659,382 25,400
2024-03-31 $2,253,885 34,500
2023-12-31 $41,634,787 547,394
2023-12-31 $791,024 10,400
2023-12-31 $2,426,314 31,900
2023-09-30 $526,830 8,511
2023-09-30 $588,050 9,500
2023-09-30 $2,469,810 39,900
2023-06-30 $1,964,868 29,200
2023-06-30 $1,662,063 24,700
2023-06-30 $16,557,982 246,069
2023-03-31 $1,185,192 18,600
2023-03-31 $981,288 15,400
2023-03-31 $16,362,658 256,790
2022-12-31 $719,208 12,600
2022-12-31 $610,756 10,700
2022-12-31 $32,609,918 571,302
2022-09-30 $2,435,872 46,700
2022-09-30 $698,944 13,400
2022-09-30 $35,689,279 684,227
2022-06-30 $558,992 9,200
2022-06-30 $35,288,678 580,788