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Who

Henry W. Kilmer

VP of Network Strategy

Company insider

Files Form 4 as: VP of Network Strategy, Cogent Communications Holdings.

Every Form 4 they filed

In numbers

Trades disclosed
103
Buys
0
Sells
81
Bought
$0
Sold
$7.9M
Companies
1
Companies where not an officer
0
First trade
7 Mar 2014
Last trade
15 Sep 2026
Last filed
15 Sep 2026

Companies traded

Where they are an officer
CCOI Cogent Communications HoldingsOfficer · Telecom Carriers · last 15 Sep 20260 buys · 81 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
20Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
15 Sep 2026filed 15 Sep 2026CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$22K2,400 at $9.21filing
15 Sep 2026filed 15 Sep 2026CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$22K2,400 at $9.21filing
15 Jun 2026filed 15 Jun 2026CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$41K2,400 at $17.01filing
15 Jun 2026filed 15 Jun 2026CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$41K2,400 at $17.01filing
6 Mar 2026filed 9 Mar 2026CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$56K2,400 at $23.35filing
6 Mar 2026filed 9 Mar 2026CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$56K2,400 at $23.35filing
31 Dec 2025filed 5 Jan 2026CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Code A—9,600 at $0.00filing
31 Dec 2025filed 5 Jan 2026CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Code A—9,600 at $0.00filing
8 Dec 2025filed 8 Dec 2025CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$95K4,800 at $19.79filing
1 Dec 2025filed 2 Dec 2025CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold—2,400 at $0.00filing
5 Sep 2025filed 5 Sep 2025CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$89K2,400 at $36.99filing
6 Jun 2025filed 9 Jun 2025CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$115K2,400 at $47.95filing
7 Mar 2025filed 10 Mar 2025CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$174K2,400 at $72.57filing
9 Jan 2025filed 13 Jan 2025CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Code A—9,600 at $0.00filing
12 Dec 2024filed 13 Dec 2024CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$363K4,800 at $75.61filing
1 Dec 2024filed 9 Jun 2025CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Code A—2,400 at $0.00filing
1 Dec 2024filed 4 Dec 2024CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold—2,400 at $0.00filing
4 Sep 2024filed 5 Sep 2024CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$167K2,400 at $69.51filing
6 Jun 2024filed 7 Jun 2024CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$134K2,400 at $56.00filing
5 Mar 2024filed 6 Mar 2024CCOI Cogent Communications HoldingsTelecom CarriersSEC FORM 4 Sold$176K2,400 at $73.47filing

News

Cogent Communications to Host Third Quarter 2026 Earnings Call on November 5, 2026CCOI · prnewswire.com · 14 Oct 2026Cogent Communications (NASDAQ:CCOI) Stock Jumps 6.4% – Time to Buy?CCOI · themarketsdaily.com · 7 Oct 2026

0 headlines in the last 90 days name Henry W. Kilmer; 2 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Communications81

Buys in green, sells in red, by the company’s sector.

Related people

Deneen C. HowellDirector · Director at Cogent Communications Holdings, filing Form 4 there in the last year
de Sa PaulDirector · Director at Cogent Communications Holdings, filing Form 4 there in the last year
Eve N. HowardDirector · Director at Cogent Communications Holdings, filing Form 4 there in the last year
Steven D. BrooksDirector · Director at Cogent Communications Holdings, filing Form 4 there in the last year
Lewis H. FergusonDirector · Director at Cogent Communications Holdings, filing Form 4 there in the last year
Thaddeus Gerard WeedVice President, CFO · Also traded CCOI in the last 90 days
Donald J. TrumpPresident · Also traded CCOI in the last 90 days