Cogent Communications Holdings, Inc.
$18.74-0.89 (-4.53%)
Prev Close
$19.63
Open
$19.78
High
$20.25
Low
$18.69
Volume
638.0K
Market Cap
$1.14B
P/E
—
Div Yield
0.13%
Over the past 12 months, insider activity at Cogent Communications Holdings, Inc. (CCOI) has been exclusively selling, with 0 insider purchases totaling $0.00 and 43 insider sales totaling $134.17M. The most recent insider transaction was by KILMER HENRY W (officer: VP OF NETWORK STRATEGY), who sold $56.0K worth of shares on Mar 9, 2026. Cogent Communications Holdings, Inc. operates in the Communication Services sector, within the Telecommunications Services industry, with a market cap of $1.14B.
Buys (12M)
0
$0.00
Sells (12M)
43
$134.17M
Net Activity
Net Seller
$134.17M
Active Insiders
6
last 12 mo
CCOI Price Chart
CCOI Insider Trading Activity
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Mar 9, 2026↗ | KILMER HENRY W | officer: VP OF NETWORK STRATEGY | Sell | 2,400 | $23.35 | $56.0K | 41,000 |
| Mar 5, 2026↗ | FERGUSON Lewis H | director | Sell | 4,412 | $23.03 | $101.6K | 20,449 |
| Mar 5, 2026↗ | Kennedy Sheryl Lynn | director | Sell | 6,600 | $22.99 | $151.7K | 10,100 |
| Mar 5, 2026↗ | WEED THADDEUS GERARD | officer: VICE PRESIDENT, CFO | Sell | 9,700 | $22.63 | $219.5K | 202,750 |
| Dec 11, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 7,300 | $23.99 | $175.1K | 0 |
| Dec 8, 2025↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 4,800 | $19.79 | $95.0K | 0 |
| Dec 2, 2025↗ | FERGUSON Lewis H | Director | Sell | 4,000 | $20.34 | $81.3K | 0 |
| Nov 11, 2025↗ | Kennedy Sheryl Lynn | Director | Sell | 2,400 | $21.34 | $51.2K | 0 |
| Sep 5, 2025↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $36.99 | $88.8K | 0 |
| Sep 2, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $36.98 | $181.2K | 0 |
| Aug 21, 2025↗ | Kennedy Sheryl Lynn | Director | Sell | 2,000 | $36.35 | $72.7K | 0 |
| Aug 8, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 818,909 | $27.50 | $22.52M | 0 |
| Aug 7, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 1,840,669 | $32.60 | $60.01M | 0 |
| Jun 16, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 70,000 | $47.11 | $3.30M | 0 |
| Jun 13, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $47.40 | $2.61M | 0 |
| Jun 12, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $47.86 | $2.63M | 0 |
| Jun 11, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.51 | $2.67M | 0 |
| Jun 10, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.68 | $2.68M | 0 |
| Jun 9, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.64 | $2.68M | 0 |
| Jun 9, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $48.04 | $235.4K | 0 |
| Jun 6, 2025↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $47.95 | $115.1K | 0 |
| Jun 6, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 80,000 | $47.78 | $3.82M | 0 |
| Jun 5, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 75,000 | $47.30 | $3.55M | 0 |
| Jun 4, 2025↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 2,000 | $47.50 | $95.0K | 0 |
| Jun 4, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 75,000 | $47.76 | $3.58M | 0 |
| Jun 3, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 65,000 | $46.97 | $3.05M | 0 |
| Jun 2, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 65,000 | $46.33 | $3.01M | 0 |
| May 30, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $45.90 | $1.15M | 0 |
| May 29, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.90 | $1.17M | 0 |
| May 28, 2025↗ | FERGUSON Lewis H | Director | Sell | 1,100 | $47.57 | $52.3K | 0 |
| May 28, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $47.41 | $948.2K | 0 |
| May 28, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 100 | $47.67 | $4.8K | 0 |
| May 27, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $48.67 | $973.3K | 0 |
| May 23, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.93 | $1.17M | 0 |
| May 22, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.27 | $1.16M | 0 |
| May 21, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 40,000 | $46.81 | $1.87M | 0 |
| May 20, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 15,000 | $49.96 | $749.3K | 0 |
| May 16, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 15,000 | $51.00 | $764.9K | 0 |
| May 16, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 100 | $50.41 | $5.0K | 0 |
| May 15, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 40,000 | $50.38 | $2.02M | 0 |
| May 14, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 30,000 | $50.64 | $1.52M | 0 |
| May 13, 2025↗ | Kennedy Sheryl Lynn | Director | Sell | 1,450 | $50.19 | $72.8K | 0 |
| May 12, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 54,000 | $50.37 | $2.72M | 0 |
| Mar 12, 2025↗ | FERGUSON Lewis H | Director | Sell | 956 | $69.36 | $66.3K | 0 |
| Mar 7, 2025↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $72.57 | $174.2K | 0 |
| Mar 4, 2025↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 2,000 | $71.67 | $143.3K | 0 |
| Mar 4, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $71.77 | $4.31M | 0 |
| Mar 3, 2025↗ | Kennedy Sheryl Lynn | Director | Sell | 1,425 | $72.96 | $104.0K | 0 |
| Mar 3, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $72.06 | $353.1K | 0 |
| Dec 16, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $75.88 | $1.52M | 0 |
| Dec 12, 2024↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 4,800 | $75.61 | $362.9K | 0 |
| Dec 9, 2024↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $76.60 | $147.1K | 0 |
| Dec 1, 2024↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $81.42 | $156.3K | 0 |
| Dec 1, 2024↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,800 | $81.58 | $391.6K | 0 |
| Nov 25, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $83.32 | $5.00M | 0 |
| Nov 21, 2024↗ | Bath Blake | Director | Sell | 6,220 | $83.69 | $520.6K | 0 |
| Nov 18, 2024↗ | FERGUSON Lewis H | Director | Sell | 846 | $81.76 | $69.2K | 0 |
| Nov 12, 2024↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 2,280 | $80.41 | $183.3K | 0 |
| Nov 11, 2024↗ | Howard Eve N | Director | Sell | 3,500 | $82.02 | $287.1K | 0 |
| Nov 11, 2024↗ | Kennedy Sheryl Lynn | Director | Sell | 1,350 | $80.58 | $108.8K | 0 |
| Sep 12, 2024↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 1,400 | $71.67 | $100.3K | 0 |
| Sep 10, 2024↗ | Kennedy Sheryl Lynn | Director | Sell | 1,550 | $71.06 | $110.1K | 0 |
| Sep 10, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 65,000 | $71.75 | $4.66M | 0 |
| Sep 4, 2024↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $69.51 | $166.8K | 0 |
| Sep 3, 2024↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $69.77 | $134.0K | 0 |
| Sep 3, 2024↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 2,400 | $69.68 | $167.2K | 0 |
| Aug 27, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $72.82 | $4.37M | 0 |
| Aug 23, 2024↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 2,055 | $74.00 | $152.1K | 0 |
| Aug 22, 2024↗ | FERGUSON Lewis H | Director | Sell | 1,550 | $72.62 | $112.6K | 0 |
| Jun 14, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $51.78 | $3.11M | 0 |
| Jun 12, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $54.60 | $3.28M | 0 |
| Jun 11, 2024↗ | Montagner Marc | Director | Buy | 10,000 | $52.61 | $526.1K | 0 |
| Jun 10, 2024↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 2,400 | $52.61 | $126.3K | 0 |
| Jun 6, 2024↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $56.00 | $134.4K | 0 |
| Jun 3, 2024↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $58.97 | $113.2K | 0 |
| May 23, 2024↗ | Kennedy Sheryl Lynn | Director | Sell | 1,640 | $57.79 | $94.8K | 0 |
| May 21, 2024↗ | FERGUSON Lewis H | Director | Sell | 2,000 | $58.90 | $117.8K | 0 |
| May 13, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 50,000 | $59.44 | $2.97M | 0 |
| Mar 15, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 26,174 | $64.21 | $1.68M | 0 |
| Mar 14, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 30,000 | $67.52 | $2.03M | 0 |
| Mar 12, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 50,000 | $68.12 | $3.41M | 0 |
| Mar 12, 2024↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 2,400 | $68.17 | $163.6K | 0 |
| Mar 11, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 35,000 | $67.93 | $2.38M | 0 |
| Mar 6, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 8,826 | $72.55 | $640.3K | 0 |
| Mar 5, 2024↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $73.47 | $176.3K | 0 |
| Mar 1, 2024↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $76.62 | $147.1K | 0 |
| Dec 26, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 3,550 | $76.00 | $269.8K | 0 |
| Dec 21, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 1,000 | $74.00 | $74.0K | 0 |
| Dec 14, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 500 | $72.00 | $36.0K | 0 |
| Dec 13, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $69.99 | $1.40M | 0 |
| Dec 11, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 3,000 | $69.00 | $207.0K | 0 |
| Dec 7, 2023↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 4,800 | $67.94 | $326.1K | 0 |
| Dec 5, 2023↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $66.12 | $127.0K | 0 |
| Dec 4, 2023↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 9,700 | $65.84 | $638.6K | 0 |
| Dec 1, 2023↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $63.70 | $122.3K | 0 |
| Dec 1, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 36,604 | $65.18 | $2.39M | 0 |
| Nov 30, 2023↗ | FERGUSON Lewis H | Director | Sell | 950 | $64.59 | $61.4K | 0 |
| Nov 30, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 3,396 | $64.31 | $218.4K | 0 |
| Nov 27, 2023↗ | Kennedy Sheryl Lynn | Director | Sell | 925 | $65.77 | $60.8K | 0 |
| Nov 20, 2023↗ | Bath Blake | Director | Sell | 9,000 | $67.14 | $604.3K | 0 |
| Nov 17, 2023↗ | Bath Blake | Director | Sell | 8,621 | $67.17 | $579.0K | 0 |
| Nov 16, 2023↗ | Bath Blake | Director | Sell | 379 | $67.00 | $25.4K | 0 |
| Nov 14, 2023↗ | Montagner Marc | Director | Sell | 10,550 | $65.83 | $694.5K | 0 |
| Nov 14, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 40,000 | $66.37 | $2.65M | 0 |
| Sep 15, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 18,191 | $65.82 | $1.20M | 0 |
| Sep 12, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 45,000 | $66.87 | $3.01M | 0 |
| Sep 8, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 45,000 | $67.68 | $3.05M | 0 |
| Sep 7, 2023↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $69.16 | $166.0K | 0 |
| Sep 5, 2023↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,850 | $69.43 | $336.7K | 0 |
| Sep 1, 2023↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $70.96 | $136.2K | 0 |
| Aug 29, 2023↗ | FERGUSON Lewis H | Director | Sell | 650 | $69.64 | $45.3K | 0 |
| Aug 24, 2023↗ | Kennedy Sheryl Lynn | Director | Sell | 550 | $68.85 | $37.9K | 0 |
| Aug 10, 2023↗ | Kapp David Allen | VP & CHIEF TECHNICAL OFFICER | Sell | 9,000 | $66.99 | $602.9K | 0 |
| Jun 14, 2023↗ | BROOKS STEVEN D | Director | Sell | 4,202 | $65.00 | $273.1K | 0 |
| Jun 8, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 7,061 | $62.44 | $440.9K | 0 |
| Jun 6, 2023↗ | KILMER HENRY W | VP OF IP ENGINEERING | Sell | 2,400 | $62.23 | $149.4K | 0 |
| Jun 6, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 67,939 | $62.28 | $4.23M | 0 |
| Jun 5, 2023↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,850 | $62.28 | $302.0K | 0 |
| Jun 1, 2023↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $61.07 | $117.3K | 0 |
| May 30, 2023↗ | FERGUSON Lewis H | Director | Sell | 640 | $63.24 | $40.5K | 0 |
| May 30, 2023↗ | Kennedy Sheryl Lynn | Director | Sell | 1,100 | $63.14 | $69.5K | 0 |
| May 11, 2023↗ | BROOKS STEVEN D | Director | Sell | 3,798 | $65.00 | $246.9K | 0 |
| May 10, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 35,000 | $65.38 | $2.29M | 0 |
| May 9, 2023↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 10,000 | $64.96 | $649.6K | 0 |
| May 3, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 5,000 | $73.00 | $365.0K | 0 |
| Apr 17, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 500 | $70.00 | $35.0K | 0 |
| Mar 13, 2023↗ | FERGUSON Lewis H | Director | Sell | 990 | $61.50 | $60.9K | 0 |
| Mar 13, 2023↗ | Kennedy Sheryl Lynn | Director | Sell | 600 | $61.66 | $37.0K | 0 |
| Mar 7, 2023↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $63.52 | $152.4K | 0 |
| Mar 3, 2023↗ | WEED THADDEUS GERARD | VP, CFO, Treasurer | Sell | 4,850 | $64.30 | $311.9K | 0 |
| Mar 1, 2023↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $64.49 | $123.8K | 0 |
| Feb 1, 2023↗ | Chang John B. | Chief Legal Officer | Sell | 2,000 | $70.00 | $140.0K | 0 |
| Jan 26, 2023↗ | Chang John B. | Chief Legal Officer | Sell | 500 | $68.00 | $34.0K | 0 |
| Jan 17, 2023↗ | Chang John B. | Chief Legal Officer | Sell | 1,000 | $66.00 | $66.0K | 0 |
| Jan 12, 2023↗ | Chang John B. | Chief Legal Officer | Sell | 1,500 | $64.00 | $96.0K | 0 |
| Dec 6, 2022↗ | KILMER HENRY W | VP of IP Engineering | Sell | 4,800 | $57.36 | $275.3K | 0 |
| Dec 5, 2022↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $57.45 | $110.3K | 0 |
| Dec 2, 2022↗ | WEED THADDEUS GERARD | VP, CFO Treasurer | Sell | 9,700 | $56.51 | $548.2K | 0 |
| Dec 1, 2022↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $58.15 | $111.6K | 0 |
| Nov 29, 2022↗ | FERGUSON Lewis H | Director | Sell | 1,050 | $57.50 | $60.4K | 0 |
| Nov 22, 2022↗ | Kapp David Allen | VP & Chief Technical Officer | Sell | 600 | $58.50 | $35.1K | 0 |
| Nov 21, 2022↗ | Kennedy Sheryl Lynn | Director | Sell | 962 | $57.83 | $55.6K | 0 |
| Nov 16, 2022↗ | KUMMER RAYMOND B | CTO; VP Optical Transport | Sell | 4,800 | $58.01 | $278.4K | 0 |
| Nov 9, 2022↗ | Montagner Marc | Director | Buy | 10,000 | $54.88 | $548.8K | 0 |
| Sep 12, 2022↗ | FERGUSON Lewis H | Director | Sell | 940 | $55.13 | $51.8K | 0 |
| Sep 9, 2022↗ | WEED THADDEUS GERARD | VP, CFO Treasurer | Sell | 4,850 | $52.35 | $253.9K | 0 |
| Sep 7, 2022↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $53.85 | $129.2K | 0 |
| Sep 1, 2022↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $53.51 | $102.7K | 0 |
| Jun 7, 2022↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $59.20 | $142.1K | 0 |
| Jun 2, 2022↗ | Kennedy Sheryl Lynn | Director | Sell | 1,350 | $60.88 | $82.2K | 0 |
| Jun 2, 2022↗ | WEED THADDEUS GERARD | VP, CFO Treasurer | Sell | 4,850 | $60.49 | $293.4K | 0 |
| Jun 1, 2022↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $60.03 | $115.2K | 0 |
| May 31, 2022↗ | FERGUSON Lewis H | Director | Sell | 950 | $60.72 | $57.7K | 0 |
| Apr 5, 2022↗ | Chang John B. | Director | Sell | 500 | $71.00 | $35.5K | 0 |
| Apr 1, 2022↗ | Chang John B. | Director | Sell | 150 | $68.00 | $10.2K | 0 |
| Mar 31, 2022↗ | Chang John B. | VP & Chief Legal Officer | Sell | 150 | $66.00 | $9.9K | 0 |
| Mar 17, 2022↗ | Chang John B. | VP & Chief Legal Officer | Sell | 600 | $62.96 | $37.8K | 0 |
| Mar 9, 2022↗ | FERGUSON Lewis H | Director | Sell | 725 | $63.26 | $45.9K | 0 |
| Mar 8, 2022↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $62.72 | $150.5K | 0 |
| Mar 2, 2022↗ | Wallace Sean Robert | VP, CFO & Treasurer | Sell | 250 | $63.30 | $15.8K | 0 |
| Mar 1, 2022↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $62.94 | $120.8K | 0 |
| Mar 1, 2022↗ | Kennedy Sheryl Lynn | Director | Sell | 1,100 | $62.27 | $68.5K | 0 |
| Dec 14, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $76.77 | $147.4K | 0 |
| Dec 13, 2021↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $77.26 | $185.4K | 0 |
| Dec 8, 2021↗ | FERGUSON Lewis H | Director | Sell | 900 | $77.31 | $69.6K | 0 |
| Dec 7, 2021↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $77.90 | $187.0K | 0 |
| Dec 2, 2021↗ | Wallace Sean Robert | VP, CFO & Treasurer | Sell | 225 | $75.18 | $16.9K | 0 |
| Dec 1, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $74.92 | $143.8K | 0 |
| Nov 23, 2021↗ | Kennedy Sheryl Lynn | Director | Sell | 1,600 | $77.37 | $123.8K | 0 |
| Nov 16, 2021↗ | Wallace Sean Robert | VP, CFO & Treasurer | Sell | 200 | $80.01 | $16.0K | 0 |
| Sep 7, 2021↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $74.13 | $177.9K | 0 |
| Sep 7, 2021↗ | Wallace Sean Robert | VP, CFO & Treasurer | Sell | 300 | $75.37 | $22.6K | 0 |
| Sep 1, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $73.64 | $141.4K | 0 |
| Sep 1, 2021↗ | FERGUSON Lewis H | Director | Sell | 850 | $73.78 | $62.7K | 0 |
| Aug 24, 2021↗ | Kennedy Sheryl Lynn | Director | Sell | 1,750 | $71.99 | $126.0K | 0 |
| Aug 9, 2021↗ | Bath Blake | Director | Sell | 8,750 | $77.69 | $679.8K | 0 |
| Aug 2, 2021↗ | KUMMER RAYMOND B | CTO; VP Optical Transport | Sell | 3,954 | $78.23 | $309.3K | 0 |
| Jul 16, 2021↗ | KUMMER RAYMOND B | CTO & VP Optical Transport | Sell | 846 | $78.24 | $66.2K | 0 |
| Jul 2, 2021↗ | KUMMER RAYMOND B | CTO & VP Optical Transport | Sell | 4,800 | $76.14 | $365.5K | 0 |
| Jun 11, 2021↗ | Wallace Sean Robert | VP, CFO & Treasurer | Sell | 1,000 | $76.60 | $76.6K | 0 |
| Jun 7, 2021↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $76.09 | $182.6K | 0 |
| Jun 7, 2021↗ | KUMMER RAYMOND B | CTO & VP Optical Transport | Sell | 2,400 | $77.01 | $184.8K | 0 |
| Jun 3, 2021↗ | FERGUSON Lewis H | Director | Sell | 750 | $75.55 | $56.7K | 0 |
| Jun 2, 2021↗ | ONEILL TIMOTHY G | VP Construction | Sell | 2,400 | $75.18 | $180.4K | 0 |
| Jun 1, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $74.96 | $143.9K | 0 |
| May 19, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 5,000 | $74.66 | $373.3K | 0 |
| May 17, 2021↗ | Kennedy Sheryl Lynn | Director | Sell | 2,450 | $76.43 | $187.3K | 0 |
| May 10, 2021↗ | Chang John B. | VP & Chief Legal Officer | Sell | 558 | $80.00 | $44.6K | 0 |
| May 3, 2021↗ | BROOKS STEVEN D | Director | Sell | 5,750 | $76.08 | $437.5K | 0 |
| Apr 6, 2021↗ | Chang John B. | VP & Chief Legal Officer | Sell | 558 | $70.00 | $39.1K | 33,776 |
| Mar 16, 2021↗ | Chang John B. | VP & Chief Legal Officer | Sell | 558 | $65.00 | $36.3K | 34,334 |
| Mar 15, 2021↗ | ONEILL TIMOTHY G | VP Construction | Sell | 4,000 | $63.30 | $253.2K | 36,000 |
| Mar 12, 2021↗ | FERGUSON Lewis H | Director | Sell | 850 | $62.69 | $53.3K | 10,350 |
| Mar 11, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $60.43 | $116.0K | 42,622 |
| Mar 5, 2021↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $57.64 | $138.3K | 36,000 |
| Mar 5, 2021↗ | ONEILL TIMOTHY G | VP Construction | Sell | 1,200 | $57.78 | $69.3K | 40,000 |
| Mar 2, 2021↗ | Kennedy Sheryl Lynn | Director | Sell | 1,050 | $59.34 | $62.3K | 5,450 |
CCOI Insider Buying Activity
The following table shows recent insider purchases of Cogent Communications Holdings, Inc. (CCOI) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Jun 11, 2024↗ | Montagner Marc | Director | Buy | 10,000 | $52.61 | $526.1K | 0 |
| Nov 9, 2022↗ | Montagner Marc | Director | Buy | 10,000 | $54.88 | $548.8K | 0 |
CCOI Insider Selling Activity
The following table shows recent insider sales of Cogent Communications Holdings, Inc. (CCOI) stock reported via SEC Form 4 filings.
| Date | Insider | Role | Type | Shares | Avg Price | Value | Shares After |
|---|---|---|---|---|---|---|---|
| Mar 9, 2026↗ | KILMER HENRY W | officer: VP OF NETWORK STRATEGY | Sell | 2,400 | $23.35 | $56.0K | 41,000 |
| Mar 5, 2026↗ | FERGUSON Lewis H | director | Sell | 4,412 | $23.03 | $101.6K | 20,449 |
| Mar 5, 2026↗ | Kennedy Sheryl Lynn | director | Sell | 6,600 | $22.99 | $151.7K | 10,100 |
| Mar 5, 2026↗ | WEED THADDEUS GERARD | officer: VICE PRESIDENT, CFO | Sell | 9,700 | $22.63 | $219.5K | 202,750 |
| Dec 11, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 7,300 | $23.99 | $175.1K | 0 |
| Dec 8, 2025↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 4,800 | $19.79 | $95.0K | 0 |
| Dec 2, 2025↗ | FERGUSON Lewis H | Director | Sell | 4,000 | $20.34 | $81.3K | 0 |
| Nov 11, 2025↗ | Kennedy Sheryl Lynn | Director | Sell | 2,400 | $21.34 | $51.2K | 0 |
| Sep 5, 2025↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $36.99 | $88.8K | 0 |
| Sep 2, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $36.98 | $181.2K | 0 |
| Aug 21, 2025↗ | Kennedy Sheryl Lynn | Director | Sell | 2,000 | $36.35 | $72.7K | 0 |
| Aug 8, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 818,909 | $27.50 | $22.52M | 0 |
| Aug 7, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 1,840,669 | $32.60 | $60.01M | 0 |
| Jun 16, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 70,000 | $47.11 | $3.30M | 0 |
| Jun 13, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $47.40 | $2.61M | 0 |
| Jun 12, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $47.86 | $2.63M | 0 |
| Jun 11, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.51 | $2.67M | 0 |
| Jun 10, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.68 | $2.68M | 0 |
| Jun 9, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 55,000 | $48.64 | $2.68M | 0 |
| Jun 9, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $48.04 | $235.4K | 0 |
| Jun 6, 2025↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $47.95 | $115.1K | 0 |
| Jun 6, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 80,000 | $47.78 | $3.82M | 0 |
| Jun 5, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 75,000 | $47.30 | $3.55M | 0 |
| Jun 4, 2025↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 2,000 | $47.50 | $95.0K | 0 |
| Jun 4, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 75,000 | $47.76 | $3.58M | 0 |
| Jun 3, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 65,000 | $46.97 | $3.05M | 0 |
| Jun 2, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 65,000 | $46.33 | $3.01M | 0 |
| May 30, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $45.90 | $1.15M | 0 |
| May 29, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.90 | $1.17M | 0 |
| May 28, 2025↗ | FERGUSON Lewis H | Director | Sell | 1,100 | $47.57 | $52.3K | 0 |
| May 28, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $47.41 | $948.2K | 0 |
| May 28, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 100 | $47.67 | $4.8K | 0 |
| May 27, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $48.67 | $973.3K | 0 |
| May 23, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.93 | $1.17M | 0 |
| May 22, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 25,000 | $46.27 | $1.16M | 0 |
| May 21, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 40,000 | $46.81 | $1.87M | 0 |
| May 20, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 15,000 | $49.96 | $749.3K | 0 |
| May 16, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 15,000 | $51.00 | $764.9K | 0 |
| May 16, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 100 | $50.41 | $5.0K | 0 |
| May 15, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 40,000 | $50.38 | $2.02M | 0 |
| May 14, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 30,000 | $50.64 | $1.52M | 0 |
| May 13, 2025↗ | Kennedy Sheryl Lynn | Director | Sell | 1,450 | $50.19 | $72.8K | 0 |
| May 12, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 54,000 | $50.37 | $2.72M | 0 |
| Mar 12, 2025↗ | FERGUSON Lewis H | Director | Sell | 956 | $69.36 | $66.3K | 0 |
| Mar 7, 2025↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $72.57 | $174.2K | 0 |
| Mar 4, 2025↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 2,000 | $71.67 | $143.3K | 0 |
| Mar 4, 2025↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $71.77 | $4.31M | 0 |
| Mar 3, 2025↗ | Kennedy Sheryl Lynn | Director | Sell | 1,425 | $72.96 | $104.0K | 0 |
| Mar 3, 2025↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,900 | $72.06 | $353.1K | 0 |
| Dec 16, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $75.88 | $1.52M | 0 |
| Dec 12, 2024↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 4,800 | $75.61 | $362.9K | 0 |
| Dec 9, 2024↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $76.60 | $147.1K | 0 |
| Dec 1, 2024↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $81.42 | $156.3K | 0 |
| Dec 1, 2024↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,800 | $81.58 | $391.6K | 0 |
| Nov 25, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $83.32 | $5.00M | 0 |
| Nov 21, 2024↗ | Bath Blake | Director | Sell | 6,220 | $83.69 | $520.6K | 0 |
| Nov 18, 2024↗ | FERGUSON Lewis H | Director | Sell | 846 | $81.76 | $69.2K | 0 |
| Nov 12, 2024↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 2,280 | $80.41 | $183.3K | 0 |
| Nov 11, 2024↗ | Howard Eve N | Director | Sell | 3,500 | $82.02 | $287.1K | 0 |
| Nov 11, 2024↗ | Kennedy Sheryl Lynn | Director | Sell | 1,350 | $80.58 | $108.8K | 0 |
| Sep 12, 2024↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 1,400 | $71.67 | $100.3K | 0 |
| Sep 10, 2024↗ | Kennedy Sheryl Lynn | Director | Sell | 1,550 | $71.06 | $110.1K | 0 |
| Sep 10, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 65,000 | $71.75 | $4.66M | 0 |
| Sep 4, 2024↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $69.51 | $166.8K | 0 |
| Sep 3, 2024↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $69.77 | $134.0K | 0 |
| Sep 3, 2024↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 2,400 | $69.68 | $167.2K | 0 |
| Aug 27, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $72.82 | $4.37M | 0 |
| Aug 23, 2024↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 2,055 | $74.00 | $152.1K | 0 |
| Aug 22, 2024↗ | FERGUSON Lewis H | Director | Sell | 1,550 | $72.62 | $112.6K | 0 |
| Jun 14, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $51.78 | $3.11M | 0 |
| Jun 12, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 60,000 | $54.60 | $3.28M | 0 |
| Jun 10, 2024↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 2,400 | $52.61 | $126.3K | 0 |
| Jun 6, 2024↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $56.00 | $134.4K | 0 |
| Jun 3, 2024↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $58.97 | $113.2K | 0 |
| May 23, 2024↗ | Kennedy Sheryl Lynn | Director | Sell | 1,640 | $57.79 | $94.8K | 0 |
| May 21, 2024↗ | FERGUSON Lewis H | Director | Sell | 2,000 | $58.90 | $117.8K | 0 |
| May 13, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 50,000 | $59.44 | $2.97M | 0 |
| Mar 15, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 26,174 | $64.21 | $1.68M | 0 |
| Mar 14, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 30,000 | $67.52 | $2.03M | 0 |
| Mar 12, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 50,000 | $68.12 | $3.41M | 0 |
| Mar 12, 2024↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 2,400 | $68.17 | $163.6K | 0 |
| Mar 11, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 35,000 | $67.93 | $2.38M | 0 |
| Mar 6, 2024↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 8,826 | $72.55 | $640.3K | 0 |
| Mar 5, 2024↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $73.47 | $176.3K | 0 |
| Mar 1, 2024↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $76.62 | $147.1K | 0 |
| Dec 26, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 3,550 | $76.00 | $269.8K | 0 |
| Dec 21, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 1,000 | $74.00 | $74.0K | 0 |
| Dec 14, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 500 | $72.00 | $36.0K | 0 |
| Dec 13, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 20,000 | $69.99 | $1.40M | 0 |
| Dec 11, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 3,000 | $69.00 | $207.0K | 0 |
| Dec 7, 2023↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 4,800 | $67.94 | $326.1K | 0 |
| Dec 5, 2023↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $66.12 | $127.0K | 0 |
| Dec 4, 2023↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 9,700 | $65.84 | $638.6K | 0 |
| Dec 1, 2023↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $63.70 | $122.3K | 0 |
| Dec 1, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 36,604 | $65.18 | $2.39M | 0 |
| Nov 30, 2023↗ | FERGUSON Lewis H | Director | Sell | 950 | $64.59 | $61.4K | 0 |
| Nov 30, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 3,396 | $64.31 | $218.4K | 0 |
| Nov 27, 2023↗ | Kennedy Sheryl Lynn | Director | Sell | 925 | $65.77 | $60.8K | 0 |
| Nov 20, 2023↗ | Bath Blake | Director | Sell | 9,000 | $67.14 | $604.3K | 0 |
| Nov 17, 2023↗ | Bath Blake | Director | Sell | 8,621 | $67.17 | $579.0K | 0 |
| Nov 16, 2023↗ | Bath Blake | Director | Sell | 379 | $67.00 | $25.4K | 0 |
| Nov 14, 2023↗ | Montagner Marc | Director | Sell | 10,550 | $65.83 | $694.5K | 0 |
| Nov 14, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 40,000 | $66.37 | $2.65M | 0 |
| Sep 15, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 18,191 | $65.82 | $1.20M | 0 |
| Sep 12, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 45,000 | $66.87 | $3.01M | 0 |
| Sep 8, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 45,000 | $67.68 | $3.05M | 0 |
| Sep 7, 2023↗ | KILMER HENRY W | VP OF NETWORK STRATEGY | Sell | 2,400 | $69.16 | $166.0K | 0 |
| Sep 5, 2023↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,850 | $69.43 | $336.7K | 0 |
| Sep 1, 2023↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $70.96 | $136.2K | 0 |
| Aug 29, 2023↗ | FERGUSON Lewis H | Director | Sell | 650 | $69.64 | $45.3K | 0 |
| Aug 24, 2023↗ | Kennedy Sheryl Lynn | Director | Sell | 550 | $68.85 | $37.9K | 0 |
| Aug 10, 2023↗ | Kapp David Allen | VP & CHIEF TECHNICAL OFFICER | Sell | 9,000 | $66.99 | $602.9K | 0 |
| Jun 14, 2023↗ | BROOKS STEVEN D | Director | Sell | 4,202 | $65.00 | $273.1K | 0 |
| Jun 8, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 7,061 | $62.44 | $440.9K | 0 |
| Jun 6, 2023↗ | KILMER HENRY W | VP OF IP ENGINEERING | Sell | 2,400 | $62.23 | $149.4K | 0 |
| Jun 6, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 67,939 | $62.28 | $4.23M | 0 |
| Jun 5, 2023↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 4,850 | $62.28 | $302.0K | 0 |
| Jun 1, 2023↗ | BUBECK JAMES | CHIEF REVENUE OFFICER | Sell | 1,920 | $61.07 | $117.3K | 0 |
| May 30, 2023↗ | FERGUSON Lewis H | Director | Sell | 640 | $63.24 | $40.5K | 0 |
| May 30, 2023↗ | Kennedy Sheryl Lynn | Director | Sell | 1,100 | $63.14 | $69.5K | 0 |
| May 11, 2023↗ | BROOKS STEVEN D | Director | Sell | 3,798 | $65.00 | $246.9K | 0 |
| May 10, 2023↗ | SCHAEFFER DAVE | CHAIRMAN, CEO, AND PRESIDENT | Sell | 35,000 | $65.38 | $2.29M | 0 |
| May 9, 2023↗ | WEED THADDEUS GERARD | VICE PRESIDENT, CFO | Sell | 10,000 | $64.96 | $649.6K | 0 |
| May 3, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 5,000 | $73.00 | $365.0K | 0 |
| Apr 17, 2023↗ | Chang John B. | VP & CHIEF LEGAL OFFICER | Sell | 500 | $70.00 | $35.0K | 0 |
| Mar 13, 2023↗ | FERGUSON Lewis H | Director | Sell | 990 | $61.50 | $60.9K | 0 |
| Mar 13, 2023↗ | Kennedy Sheryl Lynn | Director | Sell | 600 | $61.66 | $37.0K | 0 |
| Mar 7, 2023↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $63.52 | $152.4K | 0 |
| Mar 3, 2023↗ | WEED THADDEUS GERARD | VP, CFO, Treasurer | Sell | 4,850 | $64.30 | $311.9K | 0 |
| Mar 1, 2023↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $64.49 | $123.8K | 0 |
| Feb 1, 2023↗ | Chang John B. | Chief Legal Officer | Sell | 2,000 | $70.00 | $140.0K | 0 |
| Jan 26, 2023↗ | Chang John B. | Chief Legal Officer | Sell | 500 | $68.00 | $34.0K | 0 |
| Jan 17, 2023↗ | Chang John B. | Chief Legal Officer | Sell | 1,000 | $66.00 | $66.0K | 0 |
| Jan 12, 2023↗ | Chang John B. | Chief Legal Officer | Sell | 1,500 | $64.00 | $96.0K | 0 |
| Dec 6, 2022↗ | KILMER HENRY W | VP of IP Engineering | Sell | 4,800 | $57.36 | $275.3K | 0 |
| Dec 5, 2022↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $57.45 | $110.3K | 0 |
| Dec 2, 2022↗ | WEED THADDEUS GERARD | VP, CFO Treasurer | Sell | 9,700 | $56.51 | $548.2K | 0 |
| Dec 1, 2022↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $58.15 | $111.6K | 0 |
| Nov 29, 2022↗ | FERGUSON Lewis H | Director | Sell | 1,050 | $57.50 | $60.4K | 0 |
| Nov 22, 2022↗ | Kapp David Allen | VP & Chief Technical Officer | Sell | 600 | $58.50 | $35.1K | 0 |
| Nov 21, 2022↗ | Kennedy Sheryl Lynn | Director | Sell | 962 | $57.83 | $55.6K | 0 |
| Nov 16, 2022↗ | KUMMER RAYMOND B | CTO; VP Optical Transport | Sell | 4,800 | $58.01 | $278.4K | 0 |
| Sep 12, 2022↗ | FERGUSON Lewis H | Director | Sell | 940 | $55.13 | $51.8K | 0 |
| Sep 9, 2022↗ | WEED THADDEUS GERARD | VP, CFO Treasurer | Sell | 4,850 | $52.35 | $253.9K | 0 |
| Sep 7, 2022↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $53.85 | $129.2K | 0 |
| Sep 1, 2022↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $53.51 | $102.7K | 0 |
| Jun 7, 2022↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $59.20 | $142.1K | 0 |
| Jun 2, 2022↗ | Kennedy Sheryl Lynn | Director | Sell | 1,350 | $60.88 | $82.2K | 0 |
| Jun 2, 2022↗ | WEED THADDEUS GERARD | VP, CFO Treasurer | Sell | 4,850 | $60.49 | $293.4K | 0 |
| Jun 1, 2022↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $60.03 | $115.2K | 0 |
| May 31, 2022↗ | FERGUSON Lewis H | Director | Sell | 950 | $60.72 | $57.7K | 0 |
| Apr 5, 2022↗ | Chang John B. | Director | Sell | 500 | $71.00 | $35.5K | 0 |
| Apr 1, 2022↗ | Chang John B. | Director | Sell | 150 | $68.00 | $10.2K | 0 |
| Mar 31, 2022↗ | Chang John B. | VP & Chief Legal Officer | Sell | 150 | $66.00 | $9.9K | 0 |
| Mar 17, 2022↗ | Chang John B. | VP & Chief Legal Officer | Sell | 600 | $62.96 | $37.8K | 0 |
| Mar 9, 2022↗ | FERGUSON Lewis H | Director | Sell | 725 | $63.26 | $45.9K | 0 |
| Mar 8, 2022↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $62.72 | $150.5K | 0 |
| Mar 2, 2022↗ | Wallace Sean Robert | VP, CFO & Treasurer | Sell | 250 | $63.30 | $15.8K | 0 |
| Mar 1, 2022↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $62.94 | $120.8K | 0 |
| Mar 1, 2022↗ | Kennedy Sheryl Lynn | Director | Sell | 1,100 | $62.27 | $68.5K | 0 |
| Dec 14, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $76.77 | $147.4K | 0 |
| Dec 13, 2021↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $77.26 | $185.4K | 0 |
| Dec 8, 2021↗ | FERGUSON Lewis H | Director | Sell | 900 | $77.31 | $69.6K | 0 |
| Dec 7, 2021↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $77.90 | $187.0K | 0 |
| Dec 2, 2021↗ | Wallace Sean Robert | VP, CFO & Treasurer | Sell | 225 | $75.18 | $16.9K | 0 |
| Dec 1, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $74.92 | $143.8K | 0 |
| Nov 23, 2021↗ | Kennedy Sheryl Lynn | Director | Sell | 1,600 | $77.37 | $123.8K | 0 |
| Nov 16, 2021↗ | Wallace Sean Robert | VP, CFO & Treasurer | Sell | 200 | $80.01 | $16.0K | 0 |
| Sep 7, 2021↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $74.13 | $177.9K | 0 |
| Sep 7, 2021↗ | Wallace Sean Robert | VP, CFO & Treasurer | Sell | 300 | $75.37 | $22.6K | 0 |
| Sep 1, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $73.64 | $141.4K | 0 |
| Sep 1, 2021↗ | FERGUSON Lewis H | Director | Sell | 850 | $73.78 | $62.7K | 0 |
| Aug 24, 2021↗ | Kennedy Sheryl Lynn | Director | Sell | 1,750 | $71.99 | $126.0K | 0 |
| Aug 9, 2021↗ | Bath Blake | Director | Sell | 8,750 | $77.69 | $679.8K | 0 |
| Aug 2, 2021↗ | KUMMER RAYMOND B | CTO; VP Optical Transport | Sell | 3,954 | $78.23 | $309.3K | 0 |
| Jul 16, 2021↗ | KUMMER RAYMOND B | CTO & VP Optical Transport | Sell | 846 | $78.24 | $66.2K | 0 |
| Jul 2, 2021↗ | KUMMER RAYMOND B | CTO & VP Optical Transport | Sell | 4,800 | $76.14 | $365.5K | 0 |
| Jun 11, 2021↗ | Wallace Sean Robert | VP, CFO & Treasurer | Sell | 1,000 | $76.60 | $76.6K | 0 |
| Jun 7, 2021↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $76.09 | $182.6K | 0 |
| Jun 7, 2021↗ | KUMMER RAYMOND B | CTO & VP Optical Transport | Sell | 2,400 | $77.01 | $184.8K | 0 |
| Jun 3, 2021↗ | FERGUSON Lewis H | Director | Sell | 750 | $75.55 | $56.7K | 0 |
| Jun 2, 2021↗ | ONEILL TIMOTHY G | VP Construction | Sell | 2,400 | $75.18 | $180.4K | 0 |
| Jun 1, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $74.96 | $143.9K | 0 |
| May 19, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 5,000 | $74.66 | $373.3K | 0 |
| May 17, 2021↗ | Kennedy Sheryl Lynn | Director | Sell | 2,450 | $76.43 | $187.3K | 0 |
| May 10, 2021↗ | Chang John B. | VP & Chief Legal Officer | Sell | 558 | $80.00 | $44.6K | 0 |
| May 3, 2021↗ | BROOKS STEVEN D | Director | Sell | 5,750 | $76.08 | $437.5K | 0 |
| Apr 6, 2021↗ | Chang John B. | VP & Chief Legal Officer | Sell | 558 | $70.00 | $39.1K | 33,776 |
| Mar 16, 2021↗ | Chang John B. | VP & Chief Legal Officer | Sell | 558 | $65.00 | $36.3K | 34,334 |
| Mar 15, 2021↗ | ONEILL TIMOTHY G | VP Construction | Sell | 4,000 | $63.30 | $253.2K | 36,000 |
| Mar 12, 2021↗ | FERGUSON Lewis H | Director | Sell | 850 | $62.69 | $53.3K | 10,350 |
| Mar 11, 2021↗ | BUBECK JAMES | Chief Revenue Officer | Sell | 1,920 | $60.43 | $116.0K | 42,622 |
| Mar 5, 2021↗ | KILMER HENRY W | VP of IP Engineering | Sell | 2,400 | $57.64 | $138.3K | 36,000 |
| Mar 5, 2021↗ | ONEILL TIMOTHY G | VP Construction | Sell | 1,200 | $57.78 | $69.3K | 40,000 |
| Mar 2, 2021↗ | Kennedy Sheryl Lynn | Director | Sell | 1,050 | $59.34 | $62.3K | 5,450 |
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