A business in context

CCOI research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

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Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-09-07 · 8010 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-09-02 · 0001166978-26-000009

  2. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001104659-26-091790

  3. 8-K · Current report

    Report date 2026-08-06 · 0001104659-26-091634 · Items 2.02,9.01

  4. 4 · Ownership change

    Report date 2026-06-30 · 0001933694-26-000007

  5. 4 · Ownership change

    Report date 2026-06-30 · 0001923830-26-000006

  6. 4 · Ownership change

    Report date 2026-06-30 · 0001901420-26-000006

  7. 4 · Ownership change

    Report date 2026-06-30 · 0001227882-26-000006

  8. 4 · Ownership change

    Report date 2026-06-30 · 0001790695-26-000014

  9. 4 · Ownership change

    Report date 2026-06-30 · 0001456823-26-000008

  10. 4 · Ownership change

    Report date 2026-06-30 · 0001395643-26-000016

  11. 8-K · Current report

    Report date 2026-06-29 · 0001104659-26-078858 · Items 7.01,9.01

  12. 8-K · Current report

    Report date 2026-06-15 · 0001104659-26-074046 · Items 1.01,9.01

  13. 8-K · Current report

    Report date 2026-05-22 · 0001104659-26-066279 · Items 1.01,8.01,9.01

  14. 8-K · Current report

    Report date 2026-05-01 · 0001104659-26-054817 · Items 5.02,5.07,9.01

  15. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001104659-26-054611

  16. 8-K · Current report

    Report date 2026-05-04 · 0001104659-26-054436 · Items 2.02,9.01

  17. DEF 14A · Proxy statement

    Report date 2026-05-01 · 0001104659-26-032744

  18. 10-K · Annual report

    Report date 2025-12-31 · 0001104659-26-017968

  19. 8-K · Current report

    Report date 2026-02-20 · 0001104659-26-017862 · Items 2.02,9.01

  20. 8-K · Current report

    Report date 2025-12-31 · 0001104659-26-001748 · Items 5.02,9.01

  21. 8-K · Current report

    Report date 2025-11-17 · 0001104659-25-113284 · Items 2.02,9.01

  22. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001104659-25-107544

  23. 8-K · Current report

    Report date 2025-11-06 · 0001104659-25-107367 · Items 2.02,9.01

  24. 8-K · Current report

    Report date 2025-08-11 · 0001104659-25-079272 · Items 5.02,7.01

  25. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001410578-25-001593

  26. 8-K · Current report

    Report date 2025-08-07 · 0001104659-25-074979 · Items 2.02,9.01

  27. 8-K · Current report

    Report date 2025-06-17 · 0001104659-25-060259 · Items 1.01,2.03,9.01

  28. 8-K · Current report

    Report date 2025-06-03 · 0001104659-25-056008 · Items 7.01

  29. 8-K · Current report

    Report date 2025-06-02 · 0001104659-25-055357 · Items 7.01,9.01

  30. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001410578-25-001105

  31. 8-K · Current report

    Report date 2025-05-07 · 0001104659-25-046003 · Items 5.02,5.03,5.07,9.01

  32. 8-K · Current report

    Report date 2025-05-08 · 0001104659-25-045878 · Items 2.02,9.01

  33. 8-K · Current report

    Report date 2025-04-11 · 0001104659-25-034257 · Items 1.01,2.03,9.01

  34. 8-K · Current report

    Report date 2025-04-04 · 0001104659-25-032266 · Items 7.01,9.01

  35. DEF 14A · Proxy statement

    Report date 2025-05-07 · 0001104659-25-028214

  36. 8-K · Current report

    Report date 2025-03-11 · 0001104659-25-022963 · Items 1.01,9.01

  37. 10-K · Annual report

    Report date 2024-12-31 · 0001410578-25-000226

  38. 8-K · Current report

    Report date 2025-02-27 · 0001104659-25-017789 · Items 2.02,9.01

  39. 8-K · Current report

    Report date 2025-01-09 · 0001104659-25-003746 · Items 5.02,9.01

  40. SC 13G/A · Ownership disclosure

    0002012383-24-003382

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-09-07 · 2026 Q2: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 4 transaction rows4SGrant / award: 4 transaction rows4AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 4 transaction rows4G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

13 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-06-30
2026-06-30
Kennedy Sheryl LynnA · Grant / award
Acquired
common stock3445.00.0
2026-06-30
2026-06-30
Montagner MarcA · Grant / award
Acquired
common stock3445.00.0
2026-06-30
2026-06-30
FERGUSON Lewis HA · Grant / award
Acquired
common stock3445.00.0
2026-06-16
2026-06-16
WEED THADDEUS GERARDS · Sale
Disposed
common stock4850.016.79
2026-06-15
2026-06-15
KILMER HENRY WS · Sale
Disposed
common stock2400.017.01
2026-05-28
2026-05-28
FERGUSON Lewis HS · Sale
Disposed
common stock2800.020.36
2026-05-14
2026-05-18
Kennedy Sheryl LynnS · Sale
Disposed
common stock3300.016.22
2026-05-04
2026-05-04
SCHAEFFER DAVEG · Gift
Disposed
common stock1000000.00.0
2026-05-04
2026-05-04
SCHAEFFER DAVEA · Grant / award
Acquired
common stock1000000.00.0
2026-05-04
2026-05-04
SCHAEFFER DAVEG · Gift
Acquired
common stock1000000.00.0
2026-04-01
2026-04-02
SCHAEFFER DAVED · Disposition to issuer
Disposed
common stock58667.00.0
2026-04-01
2026-04-02
SCHAEFFER DAVEG · Gift
Disposed
common stock29333.00.0
2026-04-01
2026-04-02
SCHAEFFER DAVEG · Gift
Acquired
common stock29333.00.0

Identity & relationships

Wikidata structured data · retrieved 2026-09-07 · 1611 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0001158324COGENT COMMUNICATIONS HOLDINGS, INC.

No parent relationship is available in this import; this is not proof of independence.

No verified LEI join available.

GLEIF legal entity reference data · retrieved 2026-09-07 · 1177 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • Cogent Communications · alias · wikidata
  • Cogent · alias · wikidata
  • COGENT COMMUNICATIONS GROUP INC · former SEC name · 2001-12-07 to 2014-06-26
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Revenue in constant purchasing power

USD revenue expressed in 2026-07 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year endedReported USD revenueCPI-adjusted USD revenue
2024-12-31$1.04B$1.10B
2023-12-31$940.92M$1.03B
2022-12-31$599.60M$684.03M
2021-12-31$589.80M$726.69M
2020-12-31$568.10M$732.96M
2019-12-31$546.16M$713.30M
2018-12-31$520.19M$691.72M
2017-12-31$485.18M$660.92M

Bureau of Labor Statistics · retrieved 2026-09-07 · 9 selected series; gaps remain missing

Explore the CPI history ↗