COGENT COMMUNICATIONS HOLDINGS, INC.

PublicCIK: 1158324

CCOINASDAQ

Location

WASHINGTON, DC

MONTAGNER MARC

→SBA COMMUNICATIONS CORP

Oct 20, 2026·Oct 20, 2026

9 txn

MONTAGNER MARC

→COGENT COMMUNICATIONS HOLDINGS, INC.

Sep 30, 2026·Sep 30, 2026

1 txn

KENNEDY SHERYL LYNN

→COGENT COMMUNICATIONS HOLDINGS, INC.

Sep 30, 2026·Sep 30, 2026

1 txn

HOWELL DENEEN C

→COGENT COMMUNICATIONS HOLDINGS, INC.

Sep 30, 2026·Sep 30, 2026

1 txn

HOWARD EVE N

→COGENT COMMUNICATIONS HOLDINGS, INC.

Sep 30, 2026·Sep 30, 2026

1 txn

FERGUSON LEWIS H

→COGENT COMMUNICATIONS HOLDINGS, INC.

Sep 30, 2026·Sep 30, 2026

1 txn

DE SA PAUL

→COGENT COMMUNICATIONS HOLDINGS, INC.

Sep 30, 2026·Sep 30, 2026

1 txn

BROOKS STEVEN D

→COGENT COMMUNICATIONS HOLDINGS, INC.

Sep 30, 2026·Sep 30, 2026

1 txn

KILMER HENRY W

→COGENT COMMUNICATIONS HOLDINGS, INC.

Sep 15, 2026·Sep 15, 2026

1 txn

WEED THADDEUS GERARD

→COGENT COMMUNICATIONS HOLDINGS, INC.

Sep 3, 2026·Sep 3, 2026

1 txn

WEED THADDEUS GERARD

144

→COGENT COMMUNICATIONS HOLDINGS, INC.

Sep 2, 2026·Sep 2, 2026

-2

HOWELL DENEEN C

→COGENT COMMUNICATIONS HOLDINGS, INC.

Jul 1, 2026·Jul 1, 2026

1 txn

BROOKS STEVEN D

→COGENT COMMUNICATIONS HOLDINGS, INC.

Jul 1, 2026·Jul 1, 2026

1 txn

DE SA PAUL

→COGENT COMMUNICATIONS HOLDINGS, INC.

Jul 1, 2026·Jul 1, 2026

1 txn

HOWARD EVE N

→COGENT COMMUNICATIONS HOLDINGS, INC.

Jul 1, 2026·Jul 1, 2026

1 txn

FERGUSON LEWIS H

→COGENT COMMUNICATIONS HOLDINGS, INC.

Jun 30, 2026·Jun 30, 2026

1 txn

KENNEDY SHERYL LYNN

→COGENT COMMUNICATIONS HOLDINGS, INC.

Jun 30, 2026·Jun 30, 2026

1 txn

MONTAGNER MARC

→COGENT COMMUNICATIONS HOLDINGS, INC.

Jun 30, 2026·Jun 30, 2026

1 txn

WEED THADDEUS GERARD

→COGENT COMMUNICATIONS HOLDINGS, INC.

Jun 16, 2026·Jun 16, 2026

1 txn

WEED THADDEUS GERARD

144

→COGENT COMMUNICATIONS HOLDINGS, INC.

Jun 16, 2026·Jun 16, 2026

KILMER HENRY W

→COGENT COMMUNICATIONS HOLDINGS, INC.

Jun 15, 2026·Jun 15, 2026

1 txn

KILMER HENRY W

144

→COGENT COMMUNICATIONS HOLDINGS, INC.

Jun 9, 2026·Jun 9, 2026

FERGUSON LEWIS H

144

→COGENT COMMUNICATIONS HOLDINGS, INC.

May 28, 2026·May 28, 2026

FERGUSON LEWIS H

→COGENT COMMUNICATIONS HOLDINGS, INC.

May 28, 2026·May 28, 2026

1 txn

KENNEDY SHERYL LYNN

→COGENT COMMUNICATIONS HOLDINGS, INC.

May 18, 2026·May 18, 2026

1 txn

Page 1 of 33 · 807 total

Filer	Form	Target	Filed	Activity
MONTAGNER MARCCIK · 1456823	4 Trade	SBA COMMUNICATIONS CORPCIK · 1034054	Oct 20, 2026 Oct 20, 2026	9txn
MONTAGNER MARCCIK · 1456823	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Sep 30, 2026 Sep 30, 2026	1txn
KENNEDY SHERYL LYNNCIK · 1790695	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Sep 30, 2026 Sep 30, 2026	1txn
HOWELL DENEEN CCIK · 1923830	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Sep 30, 2026 Sep 30, 2026	1txn
HOWARD EVE NCIK · 1933694	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Sep 30, 2026 Sep 30, 2026	1txn
FERGUSON LEWIS HCIK · 1395643	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Sep 30, 2026 Sep 30, 2026	1txn
DE SA PAULCIK · 1901420	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Sep 30, 2026 Sep 30, 2026	1txn
BROOKS STEVEN DCIK · 1227882	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Sep 30, 2026 Sep 30, 2026	1txn
KILMER HENRY WCIK · 1599812	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Sep 15, 2026 Sep 15, 2026	1txn
WEED THADDEUS GERARDCIK · 1166978	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Sep 3, 2026 Sep 3, 2026	1txn
WEED THADDEUS GERARDCIK · 1166978	144 Sale	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Sep 2, 2026 Sep 2, 2026	—
HOWELL DENEEN CCIK · 1923830	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Jul 1, 2026 Jul 1, 2026	1txn
BROOKS STEVEN DCIK · 1227882	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Jul 1, 2026 Jul 1, 2026	1txn
DE SA PAULCIK · 1901420	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Jul 1, 2026 Jul 1, 2026	1txn
HOWARD EVE NCIK · 1933694	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Jul 1, 2026 Jul 1, 2026	1txn
FERGUSON LEWIS HCIK · 1395643	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Jun 30, 2026 Jun 30, 2026	1txn
KENNEDY SHERYL LYNNCIK · 1790695	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Jun 30, 2026 Jun 30, 2026	1txn
MONTAGNER MARCCIK · 1456823	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Jun 30, 2026 Jun 30, 2026	1txn
WEED THADDEUS GERARDCIK · 1166978	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Jun 16, 2026 Jun 16, 2026	1txn
WEED THADDEUS GERARDCIK · 1166978	144 Sale	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Jun 16, 2026 Jun 16, 2026	—
KILMER HENRY WCIK · 1599812	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Jun 15, 2026 Jun 15, 2026	1txn
KILMER HENRY WCIK · 1599812	144 Sale	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	Jun 9, 2026 Jun 9, 2026	—
FERGUSON LEWIS HCIK · 1395643	144 Sale	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	May 28, 2026 May 28, 2026	—
FERGUSON LEWIS HCIK · 1395643	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	May 28, 2026 May 28, 2026	1txn
KENNEDY SHERYL LYNNCIK · 1790695	4 Trade	COGENT COMMUNICATIONS HOLDINGS, INC.CIK · 1158324	May 18, 2026 May 18, 2026	1txn

Page 1 of 33 · 807 total