Total buying$00 buys
CCOI
COGENT COMMUNICATIONS HOLDINGS, INC.
NasdaqCommunication ServicesCommunications Services, NEC
Insider activity for last month from 09/19 to 10/19.
How these metrics are calculated
Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total selling$00 sells
Net open-market+$0Buying minus selling
Active insiders7Distinct reporting owners
Insider activity report
Calendar-month buckets within the selected date range
Latest filing: Sep 30, 2026
Open-market transaction mix · 0 transactions in the selected period
Code A includes awards, grants and other acquisitions; these are not open-market buys. A rolling period can include partial calendar months.
View exact monthly counts and disclosed values
| Month | Buys | Sells | Awards (A) | Buy value | Sell value | Net P/S value |
|---|---|---|---|---|---|---|
| Sep 2026 | 0 | 0 | 7 | $0 | $0 | $0 |
| Oct 2026 | 0 | 0 | 0 | $0 | $0 | $0 |
Distinct insiders active
Reporting-owner CIKs by month · peak Sep 2026 (7)Sep 2026Oct 2026
Largest insider activity
By absolute net disclosed value · current transaction page- MM+$0
- KL+$0
- HC+$0
- HN+$0
- FH+$0
CCOI transaction history
Newest filings · 20 transactions per pageLatest insider transactions
Form 4 filings from last month.| Company | Insider | Activity | Disclosed value | Filed (ET) |
|---|---|---|---|---|
CCOICOGENT COMMUNICATIONS HOLDINGS, INC. | Montagner MarcDIR | A · grantSEC filing ↗ | $0View disclosure → | |
CCOICOGENT COMMUNICATIONS HOLDINGS, INC. | Kennedy Sheryl LynnDIR | A · grantSEC filing ↗ | $0View disclosure → | |
CCOICOGENT COMMUNICATIONS HOLDINGS, INC. | Howell Deneen CDIR | A · grantSEC filing ↗ | $0View disclosure → | |
CCOICOGENT COMMUNICATIONS HOLDINGS, INC. | Howard Eve NDIR | A · grantSEC filing ↗ | $0View disclosure → | |
CCOICOGENT COMMUNICATIONS HOLDINGS, INC. | Ferguson Lewis HDIR | A · grantSEC filing ↗ | $0View disclosure → | |
CCOICOGENT COMMUNICATIONS HOLDINGS, INC. | De Sa PaulDIR | A · grantSEC filing ↗ | $0View disclosure → | |
CCOICOGENT COMMUNICATIONS HOLDINGS, INC. | Brooks Steven DDIR | A · grantSEC filing ↗ | $0View disclosure → |
Filing-only signals
Deterministic matches in the selected period
Filing detail checks
Secondary metrics for the selected periodTransaction codes
By Form 4 transaction code in selected period7transactionstxns
- A · Grants / awards · dominant7 · 100%
Activity by reported role
A joint filing can contribute to multiple rolesDirector7
Reported Holdings After
Separated by insider, security, and ownership type
Brooks Steven Dcommon stock · Direct
62,138Sep 30, 2026
De Sa Paulcommon stock · Direct
37,237Sep 30, 2026
Ferguson Lewis Hcommon stock · Direct
27,984Sep 30, 2026
Howard Eve Ncommon stock · Direct
30,751Sep 30, 2026
Howell Deneen Ccommon stock · Direct
35,775Sep 30, 2026
Kennedy Sheryl Lynncommon stock · Direct
17,135Sep 30, 2026
Montagner Marccommon stock · Direct
103,287Sep 30, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Current transaction page only · each cell is a filing date · buys green, sells redSep 19 → Oct 19
LessMore
COGENT COMMUNICATIONS HOLDINGS, INC. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at COGENT COMMUNICATIONS HOLDINGS, INC.?
Montagner Marc, Kennedy Sheryl Lynn, Howell Deneen C, Howard Eve N, FERGUSON Lewis H, de Sa Paul, BROOKS STEVEN D.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
No code-S sale is available for this period.
What is the recent purchase and sale balance?
No code-P purchases or code-S sales were reported in the selected period.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.