Cogent Communications Holdings, Inc.
US ˙ NasdaqGS ˙ US19239V3024

SecurityCCOI / Cogent Communications Holdings, Inc.
InsiderLewis H FERGUSON
This page shows the track record and history of FERGUSON Lewis H insider trades in Cogent Communications Holdings, Inc.. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Lewis H FERGUSON in CCOI / Cogent Communications Holdings, Inc.. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Max		 Price at
Max		 Max
Profit ($)		 Max Return (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

CCOI / Cogent Communications Holdings, Inc. Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Lewis H FERGUSON in CCOI / Cogent Communications Holdings, Inc.. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares		 Reported
Price		 Adjusted
Shares		 Adjusted
Price		 Cost Basis Days to
Min		 Price at
Min		 Max Loss
Avoided ($)		 Max Loss
Avoided (%)
2025-05-28 1,100 47.5701 1,100 47.5701 52,327 72 30.6200 -18,645 -35.63
2025-03-12 956 69.3650 956 69.3650 66,313
2024-11-18 846 81.7620 846 81.7620 69,171
2024-08-22 1,550 72.6155 1,550 72.6155 112,554
2024-05-21 2,000 58.9009 2,000 58.9009 117,802
2023-11-30 950 64.5950 950 64.5950 61,365
2023-08-29 650 69.6401 650 69.6401 45,266
2023-05-30 640 63.2350 640 63.2350 40,470
2023-03-13 990 61.4950 990 61.4950 60,880
2022-11-29 1,050 57.5000 1,050 57.5000 60,375
2022-09-12 940 55.1300 940 55.1300 51,822
2022-05-31 950 60.7200 950 60.7200 57,684
2022-03-09 725 63.2650 725 63.2650 45,867
2021-12-08 900 77.3100 900 77.3100 69,579
2021-09-01 850 73.7818 850 73.7818 62,715
2021-06-03 500 75.5300 500 75.5300 37,765
2021-06-03 250 75.6000 250 75.6000 18,900
2021-03-12 850 62.6900 850 62.6900 53,286
2020-12-09 950 57.0063 950 57.0063 54,156
2020-09-08 910 66.0500 910 66.0500 60,106
2020-06-09 1,000 76.5200 1,000 76.5200 76,520
2020-03-11 300 82.8465 300 82.8465 24,854
2019-12-12 570 61.5250 570 61.5250 35,069
2019-09-10 675 58.2840 675 58.2840 39,342
2019-05-23 515 57.4476 515 57.4476 29,586
2019-03-07 580 48.5988 580 48.5988 28,187
2018-12-14 800 47.2000 800 47.2000 37,760

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

CCOI / Cogent Communications Holdings, Inc. Insider Trades
Insider Transaction History
File
Date		 Trade
Date		 Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price		 Unit
Price		 Units
Changed		 Value
Changed (1K)		 Remaining
Options		 Remaining
Shares
2025-07-01 2025-06-30 4 FERGUSON Lewis H CCOI common stock A - Award D 1,968 20,872
2025-05-29 2025-05-28 4 FERGUSON Lewis H CCOI common stock S - Sale D 47.5701 -1,100 -52 18,904
2025-03-31 2025-03-31 4 FERGUSON Lewis H CCOI common stock A - Award D 1,352 20,004
2025-03-13 2025-03-12 4 FERGUSON Lewis H CCOI common stock S - Sale D 69.3650 -956 -66 18,652
2025-01-03 2025-01-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,254 19,608
2024-11-19 2024-11-18 4 FERGUSON Lewis H CCOI common stock S - Sale D 81.7620 -846 -69 18,354
2024-10-01 2024-10-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,452 19,200
2024-08-26 2024-08-22 4 FERGUSON Lewis H CCOI common stock S - Sale D 72.6155 -1,550 -113 17,748
2024-07-02 2024-07-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,675 19,298
2024-05-22 2024-05-21 4 FERGUSON Lewis H CCOI common stock S - Sale D 58.9009 -2,000 -118 17,623
2024-04-01 2024-04-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,370 19,623
2024-01-03 2024-01-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,403 18,253
2023-11-30 2023-11-30 4 FERGUSON Lewis H CCOI common stock S - Sale D 64.5950 -950 -61 16,850
2023-10-03 2023-10-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,433 17,800
2023-08-29 2023-08-29 4 FERGUSON Lewis H CCOI common stock S - Sale D 69.6401 -650 -45 16,367
2023-07-05 2023-07-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,435 17,017
2023-05-31 2023-05-30 4 FERGUSON Lewis H CCOI common stock S - Sale D 63.2350 -640 -40 15,582
2023-04-05 2023-04-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,456 16,222
2023-03-13 2023-03-13 4 FERGUSON Lewis H CCOI common stock S - Sale D 61.4950 -990 -61 14,766
2023-01-04 2023-01-03 4 FERGUSON Lewis H CCOI common stock A - Award D 1,709 15,756
2022-11-29 2022-11-29 4 FERGUSON Lewis H CCOI common stock S - Sale D 57.5000 -1,050 -60 14,047
2022-10-04 2022-10-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,626 15,097
2022-09-13 2022-09-12 4 FERGUSON Lewis H CCOI common stock S - Sale D 55.1300 -940 -52 13,471
2022-07-05 2022-07-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,524 14,411
2022-05-31 2022-05-31 4 FERGUSON Lewis H CCOI common stock S - Sale D 60.7200 -950 -58 12,887
2022-04-04 2022-04-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,462 13,837
2022-03-09 2022-03-09 4 FERGUSON Lewis H CCOI common stock S - Sale D 63.2650 -725 -46 12,375
2021-12-08 2021-12-08 4 FERGUSON Lewis H CCOI common stock S - Sale D 77.3100 -900 -70 13,100
2021-10-01 2021-10-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 14,000
2021-09-01 2021-09-01 4 FERGUSON Lewis H CCOI common stock S - Sale D 73.7818 -850 -63 12,250
2021-07-02 2021-07-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 13,100
2021-06-03 2021-06-03 4 FERGUSON Lewis H CCOI common stock S - Sale D 75.6000 -250 -19 11,350
2021-06-03 2021-06-03 4 FERGUSON Lewis H CCOI common stock S - Sale D 75.5300 -500 -38 11,600
2021-04-01 2021-04-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 12,100
2021-03-12 2021-03-12 4 FERGUSON Lewis H CCOI common stock S - Sale D 62.6900 -850 -53 10,350
2021-01-04 2021-01-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 11,200
2020-12-10 2020-12-09 4 FERGUSON Lewis H CCOI common stock S - Sale D 57.0063 -950 -54 9,450
2020-10-01 2020-10-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 10,400
2020-09-08 2020-09-08 4 FERGUSON Lewis H CCOI common stock S - Sale D 66.0500 -910 -60 8,650
2020-07-01 2020-07-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 9,560
2020-06-09 2020-06-09 4 FERGUSON Lewis H CCOI common stock S - Sale D 76.5200 -1,000 -77 7,810
2020-04-01 2020-04-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 8,810
2020-03-12 2020-03-11 4 FERGUSON Lewis H CCOI common stock S - Sale D 82.8465 -300 -25 7,060
2020-01-02 2020-01-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 7,360
2019-12-13 2019-12-12 4 FERGUSON Lewis H CCOI common stock S - Sale D 61.5250 -570 -35 5,610
2019-10-02 2019-10-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 6,180
2019-09-11 2019-09-10 4 FERGUSON Lewis H CCOI common stock S - Sale D 58.2840 -675 -39 4,430
2019-07-02 2019-07-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 5,105
2019-05-24 2019-05-23 4 FERGUSON Lewis H CCOI common stock S - Sale D 57.4476 -515 -30 3,355
2019-05-23 2019-04-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 3,870
2019-03-08 2019-03-07 4 FERGUSON Lewis H CCOI common stock S - Sale D 48.5988 -580 -28 2,120
2019-01-03 2019-01-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 2,700
2018-12-14 2018-12-14 4 FERGUSON Lewis H CCOI common stock S - Sale D 47.2000 -800 -38 950
2018-10-01 2018-10-01 4 FERGUSON Lewis H CCOI common stock A - Award D 1,750 1,750
P
Pembelian sekuritas non-derivatif atau derivatif di pasar terbuka atau secara pribadi.
S
Penjualan terbuka atau penjualan pribadi atas sekuritas non-derivatif atau derivatif.
A
Hibah, penghargaan, atau perolehan sekuritas lainnya dari perusahaan (seperti opsi)
C
Konversi turunan
D
Penjualan atau pengalihan sekuritas kembali ke perusahaan.
F
Pembayaran harga pelaksanaan atau kewajiban pajak menggunakan sebagian sekuritas yang diterima dari perusahaan.
G
Pemberian sekuritas oleh atau kepada orang dalam.
K
Swap ekuitas dan transaksi lindung nilai serupa
M
Pelaksanaan atau konversi sekuritas derivatif yang diterima dari perusahaan (seperti opsi)
V
Transaksi yang dilaporkan secara sukarela pada Formulir 4.
J
Lainnya (disertai dengan catatan kaki yang menjelaskan transaksi tersebut)