| $504M | ||
| $106M | ||
| $100M | ||
| $28M | ||
| $16M | ||
| $13M |
Buys | $0 | 0 | 0 |
Sells | $138,779,503 | 47 | 100 |
| FERGUSON Lewis H | director | 0 | $0 | 3 | $199,981 | $-199,981 |
| BUBECK JAMES | CHIEF REVENUE OFFICER | 0 | $0 | 2 | $238,347 | $-238,347 |
| Kennedy Sheryl Lynn | director | 0 | $0 | 4 | $300,661 | $-300,661 |
| KILMER HENRY W | VP OF NETWORK STRATEGY | 0 | $0 | 5 | $473,016 | $-473,016 |
| WEED THADDEUS GERARD | VICE PRESIDENT, CFO | 0 | $0 | 6 | $949,601 | $-949,601 |
| SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 0 | $0 | 27 | $136.62M | $-136.62M |
Cogent Communications Holdings, Inc., through its subsidiaries, provides high-speed Internet access, private network, and data center colocation space services in North America, Europe, Asia, South America, Australia, and Africa. The company offers on-net Internet access and private network services to law firms, financial services firms, and advertising and marketing firms, as well as heath care providers, educational institutions and other professional services businesses, other Internet service providers, telephone companies, cable television companies, Web hosting companies, media service providers, mobile phone operators, content delivery network companies, and commercial content and application service providers. It also provides Internet access and private network services to customers that are not located in buildings directly connected to its network; and on-net services to customers located in buildings that are physically connected to its network. In addition, the company offers off-net services to corporate customers using other carriers' circuits to provide the last mile portion of the link from the customers' premises to the network. Further, it operates data centers that allow its customers to collocate their equipment and access the network. The company operates 54 data centers and provides facilities to 3,035 buildings and on-net services to 1,817 to multi-tenant office buildings. It serves primarily to small and medium-sized businesses, communications service providers, and other bandwidth-intensive organizations. Cogent Communications Holdings, Inc. was founded in 1999 and is headquartered in Washington, the District of Columbia.
Over the last 12 months, insiders at Cogent Communications Holdings, Inc. have bought $0 and sold $138.78M worth of Cogent Communications Holdings, Inc. stock.
On average, over the past 5 years, insiders at Cogent Communications Holdings, Inc. have bought $537,440 and sold $42.86M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 10,000 shares for transaction amount of $526,130 was made by Montagner Marc (director) on 2024‑06‑11.
| 2025-12-11 | Sale | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | 7,300 0.0147% | $23.99 | $175,127 | -4.60% | |
| 2025-12-08 | Sale | KILMER HENRY W | VP OF NETWORK STRATEGY | 4,800 0.0091% | $19.79 | $94,992 | +9.58% | |
| 2025-12-02 | Sale | FERGUSON Lewis H | director | 4,000 0.0083% | $20.34 | $81,341 | +15.31% | |
| 2025-12-01 | Sale | KILMER HENRY W | VP OF NETWORK STRATEGY | 2,400 – | $0 | $0 | +18.34% | |
| 2025-11-11 | Sale | Kennedy Sheryl Lynn | director | 2,400 0.0044% | $21.34 | $51,221 | +9.56% | |
| 2025-09-05 | Sale | KILMER HENRY W | VP OF NETWORK STRATEGY | 2,400 0.0049% | $36.99 | $88,776 | -33.96% | |
| 2025-09-02 | Sale | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | 4,900 0.01% | $36.98 | $181,202 | -33.99% | |
| 2025-08-21 | Sale | Kennedy Sheryl Lynn | director | 2,000 0.0039% | $36.35 | $72,700 | -33.61% | |
| 2025-08-08 | Sale | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 818,909 1.4907% | $27.50 | $22.52M | -12.69% | |
| 2025-08-07 | Sale | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 1.84M 3.4415% | $32.60 | $60.01M | -24.35% | |
| 2025-06-16 | Sale | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 70,000 0.1425% | $47.11 | $3.3M | -19.70% | |
| 2025-06-13 | Sale | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 55,000 0.1125% | $47.40 | $2.61M | -19.78% | |
| 2025-06-12 | Sale | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 55,000 0.1112% | $47.86 | $2.63M | -21.42% | |
| 2025-06-11 | Sale | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 55,000 0.1122% | $48.51 | $2.67M | -21.67% | |
| 2025-06-10 | Sale | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 55,000 0.1116% | $48.68 | $2.68M | -22.22% | |
| 2025-06-09 | Sale | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 55,000 0.1108% | $48.64 | $2.68M | -22.57% | |
| 2025-06-09 | Sale | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | 4,900 0.0097% | $48.04 | $235,396 | -22.57% | |
| 2025-06-06 | Sale | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 80,000 0.1619% | $47.78 | $3.82M | -20.76% | |
| 2025-06-06 | Sale | KILMER HENRY W | VP OF NETWORK STRATEGY | 2,400 0.0049% | $47.95 | $115,080 | -20.76% | |
| 2025-06-05 | Sale | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 75,000 0.1517% | $47.30 | $3.55M | -20.03% |
| SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | 697143 1.4192% | $18.68M | 0 | 54 | |
| WEED THADDEUS GERARD | VICE PRESIDENT, CFO | 88200 0.1796% | $2.36M | 0 | 137 | |
| BUBECK JAMES | CHIEF REVENUE OFFICER | 55142 0.1123% | $1.48M | 0 | 45 | |
| KILMER HENRY W | VP OF NETWORK STRATEGY | 33800 0.0688% | $905,502.00 | 0 | 78 | |
| FERGUSON Lewis H | director | 19267 0.0392% | $516,162.93 | 2 | 28 | +16.08% |
| Kennedy Sheryl Lynn | director | 10012 0.0204% | $268,221.48 | 0 | 21 | |
| PETERSON KENNETH D JR | director | 1938965 3.9473% | $51.94M | 0 | 2 | |
| Montagner Marc | director | 79468 0.1618% | $2.13M | 3 | 8 | +22.66% |
| Karnes Jeffrey | VP Sales & CRO | 72218 0.147% | $1.93M | 0 | 62 | |
| Chang John B. | VP & CHIEF LEGAL OFFICER | 69300 0.1411% | $1.86M | 0 | 27 | |
| LIEBHABER RICHARD | director | 66095 0.1346% | $1.77M | 4 | 4 | +11.96% |
| KUMMER RAYMOND B | CTO; VP Optical Transport | 50400 0.1026% | $1.35M | 0 | 97 | |
| Harrison R Reed | President & COO | 45000 0.0916% | $1.21M | 0 | 28 | |
| Ortega Ernest | Chief Revenue Officer | 38800 0.079% | $1.04M | 0 | 5 | |
| BEURY ROBERT N JR | VP & Chief Legal Officer | 36440 0.0742% | $976,227.60 | 0 | 163 | |
| ONEILL TIMOTHY G | VP Construction | 33600 0.0684% | $900,144.00 | 0 | 140 | |
| BROOKS STEVEN D | director | 33277 0.0677% | $891,490.83 | 3 | 18 | +13.06% |
| Wallace Sean Robert | VP, CFO & Treasurer | 29225 0.0595% | $782,937.75 | 0 | 5 | |
| GLASSMEYER EDWARD F | director | 25825 0.0526% | $691,851.75 | 1 | 2 | |
| WEINGARTEN TIM | director | 21111 0.043% | $565,563.69 | 3 | 21 | +10.66% |
| Howard Eve N | director | 10059 0.0205% | $269,480.61 | 0 | 1 | |
| Bath Blake | director | 10000 0.0204% | $267,900.00 | 3 | 13 | +10.36% |
| Kapp David Allen | VP & CHIEF TECHNICAL OFFICER | 6600 0.0134% | $176,814.00 | 0 | 3 | |
| LEE HELEN HEYOUNG | Chief Financial Officer | 800 0.0016% | $21,432.00 | 0 | 1 | |
| SCHLEIFER MARK A | VP of IP Engineering | 0 0% | $0 | 0 | 34 | |
| MARGALIT EREL N | director | 0 0% | $0 | 3 | 16 | +6.24% |
| BERTRAND JEAN JACQUES | director | 0 0% | $0 | 0 | 3 |
$8,706 | 1 | 14.17% | $4.41B | |
$46,710 | 1 | 2.07% | $20.77B |
| Increased Positions | 148 | +43.92% | 8M | +15.06% |
| Decreased Positions | 154 | -45.7% | 13M | -24.71% |
| New Positions | 60 | New | 2M | New |
| Sold Out Positions | 71 | Sold Out | 6M | Sold Out |
| Total Postitions | 331 | -1.78% | 47M | -9.66% |
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| Turtle Creek Asset Management Inc. | $94,933.00 | 9.4% | 4.6M | +2M | +64.86% | 2025-09-30 |
| Edgepoint Investment Group Inc. | $47,052.00 | 4.66% | 2.28M | +2,438 | +0.11% | 2025-09-30 |
| State Street Corp | $39,955.00 | 3.95% | 1.94M | +149,443 | +8.36% | 2025-09-30 |
| Morgan Stanley | $37,127.00 | 3.68% | 1.8M | +556,518 | +44.74% | 2025-09-30 |
| Invesco Ltd. | $28,922.00 | 2.86% | 1.4M | +399,339 | +39.8% | 2025-09-30 |
| Magnolia Group, Llc | $26,236.00 | 2.6% | 1.27M | +179,126 | +16.39% | 2025-09-30 |
| Geode Capital Management, Llc | $23,662.00 | 2.34% | 1.15M | +87,140 | +8.22% | 2025-09-30 |
| Bank Of America Corp /De/ | $23,639.00 | 2.34% | 1.15M | +970,367 | +551.19% | 2025-09-30 |