Cable One, Inc.
US ˙ NYSE ˙ US12685J1051

SecurityCABO / Cable One, Inc.
InstitutionBrown Advisory Inc
Latest Disclosed Ownership170,181 shares
Latest Disclosed Value $ 15,522,129
Brown Advisory Inc reports 1.82% decrease in ownership of CABO / Cable One, Inc.

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 170,181 shares of Cable One, Inc. (US:CABO) valued at $15,522,209 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 173,343 shares of Cable One, Inc.. This represents a change in shares of -1.82% during the quarter. The current value of the position is $8,178,899 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F CABLE ONE COM 12685J105 170,181 -3,162 -1.82 15,522 -20.65 0.0114
2026-02-13 2025-12-31 13F CABLE ONE COM 12685J105 173,343 -24,901 -12.56 19,562 -44.27 0.0273
2025-11-14 2025-09-30 13F CABLE ONE COM 12685J105 198,244 76,878 63.34 35,099 112.95 0.0457
2025-08-13 2025-06-30 13F CABLE ONE COM 12685J105 121,366 -10,210 -7.76 16,483 -52.87 0.0217
2025-04-30 2025-03-31 13F CABLE ONE COM 12685J105 131,576 42,606 47.89 34,969 8.54 0.0500
2025-02-14 2024-12-31 13F CABLE ONE COM 12685J105 88,970 -6,330 -6.64 32,218 -3.35 0.0409
2024-11-13 2024-09-30 13F CABLE ONE COM 12685J105 95,300 510 0.54 33,335 -0.66 0.0419
2024-08-14 2024-06-30 13F CABLE ONE COM 12685J105 94,790 368 0.39 33,556 -16.01 0.0439
2024-04-24 2024-03-31 13F CABLE ONE COM 12685J105 94,422 4,764 5.31 39,953 -19.94 0.0534
2024-02-08 2023-12-31 13F CABLE ONE COM 12685J105 89,658 4,124 4.82 49,903 -5.23 0.0701
2023-10-25 2023-09-30 13F CABLE ONE COM 12685J105 85,534 2,374 2.85 52,658 -3.63 0.0864
2023-07-31 2023-06-30 13F CABLE ONE COM 12685J105 83,160 -5,062 -5.74 54,643 -11.77 0.0854
2023-05-08 2023-03-31 13F CABLE ONE COM 12685J105 88,222 26,485 42.90 61,932 40.92 0.1048
2023-02-13 2022-12-31 13F CABLE ONE COM 12685J105 61,737 60,050 3,559.57 43,948 2,954.07 0.0816
2022-11-14 2022-09-30 13F CABLE ONE COM 12685J105 1,687 10 0.60 1,439 -33.44 0.0028
2022-11-14 2022-06-30 13F/A-2 CABLE ONE COM 12685J105 1,677 0 0.00 2,162 -11.93 0.0041
2022-09-13 2022-06-30 13F/A-1 CABLE ONE COM 12685J105 1,562 0 2,014 0.0035
2022-08-02 2022-06-30 13F CABLE ONE COM 12685J105 1,704 0 2,264 0.0015
2022-11-14 2022-03-31 13F/A-2 CABLE ONE COM 12685J105 1,677 -112 -6.26 2,455 -22.16 0.0037
2022-09-13 2022-03-31 13F/A-1 CABLE ONE COM 12685J105 1,562 -227 2,287 0.0032
2022-05-09 2022-03-31 13F CABLE ONE COM 12685J105 1,704 -85 2,537 0.0034
2022-01-27 2021-12-31 13F CABLE ONE COM 12685J105 1,789 22 1.25 3,154 -1.56 0.0039
2021-11-12 2021-09-30 13F CABLE ONE COM 12685J105 1,767 0 0.00 3,204 -5.21 0.0047
2021-07-29 2021-06-30 13F CABLE ONE COM 12685J105 1,767 -25 -1.40 3,380 3.17 0.0051
2021-05-14 2021-03-31 13F CABLE ONE COM 12685J105 1,792 98 5.79 3,276 -13.20 0.0056
2021-02-12 2020-12-31 13F CABLE ONE COM 12685J105 1,694 -1 -0.06 3,774 18.09 0.0067
2020-11-16 2020-09-30 13F CABLE ONE COM 12685J105 1,695 2 0.12 3,196 6.36 0.0066
2020-08-14 2020-06-30 13F CABLE ONE COM 12685J105 1,693 -10 -0.59 3,005 7.32 0.0070
2020-05-15 2020-03-31 13F CABLE ONE COM 12685J105 1,703 150 9.66 2,800 21.16 0.0086
2020-02-14 2019-12-31 13F CABLE ONE COM 12685J105 1,553 10 0.65 2,311 19.37 0.0059
2019-11-14 2019-09-30 13F CABLE ONE COM 12685J105 1,543 0 0.00 1,936 7.14 0.0054
2019-08-12 2019-06-30 13F CABLE ONE COM 12685J105 1,543 0 0.00 1,807 19.35 0.0052
2019-05-15 2019-03-31 13F CABLE ONE COM 12685J105 1,543 0 0.00 1,514 19.68 0.0043
2019-02-13 2018-12-31 13F CABLE ONE COM 12685J105 1,543 95 6.56 1,265 -1.17 0.0042
2018-11-13 2018-09-30 13F CABLE ONE COM 12685J105 1,448 -73 -4.80 1,280 14.80 0.0036
2018-08-10 2018-06-30 13F CABLE ONE COM 12685J105 1,521 55 3.75 1,115 10.72 0.0034
2018-06-28 2018-03-31 13F/A-1 CABLE ONE COM 12685J105 1,466 -15 -1.01 1,007 -3.36 0.0033
2018-05-14 2018-03-31 13F CABLE ONE COM 12685J105 1,456 -25 1,001
2018-02-12 2017-12-31 13F CABLE ONE COM 12685J105 1,481 1 0.07 1,042 -2.53 0.0033
2017-11-13 2017-09-30 13F CABLE ONE COM 12685J105 1,480 88 6.32 1,069 7.98 0.0035
2017-08-14 2017-06-30 13F CABLE ONE COM 12685J105 1,392 16 1.16 990 15.25 0.0030
2017-05-15 2017-03-31 13F CABLE ONE COM 12685J105 1,376 0 0.00 859 0.35 0.0029
2017-02-13 2016-12-31 13F CABLE ONE COM 12685J105 1,376 0 0.00 856 6.60 0.0031
2016-11-14 2016-09-30 13F CABLE ONE COM 12685J105 1,376 440 47.01 803 67.64 0.0028
2016-08-09 2016-06-30 13F CABLE ONE COM 12685J105 936 -94 -9.13 479 6.44 0.0017
2016-05-13 2016-03-31 13F CABLE ONE COM 12685J105 1,030 0 0.00 450 0.67 0.0016
2016-02-08 2015-12-31 13F CABLE ONE COM 12685J105 1,030 -25 -2.37 447 1.13 0.0015
2015-11-13 2015-09-30 13F CABLE ONE COM 12685J105 1,055 1,055 442 0.0016
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.