Cable One, Inc.
US ˙ NYSE ˙ US12685J1051

SecurityCABO / Cable One, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership14,405 shares
Latest Disclosed Value $ 1,313,863
Rhumbline Advisers reports 2.05% increase in ownership of CABO / Cable One, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 14,405 shares of Cable One, Inc. (US:CABO) valued at $1,313,880 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 14,115 shares of Cable One, Inc.. This represents a change in shares of 2.05% during the quarter. The current value of the position is $631,227 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)
2026-05-12 2026-03-31 13F CABLE ONE INC COM COM 12685J105 14,405 290 2.05 1,314 -17.53 0.0011
2026-02-13 2025-12-31 13F CABLE ONE INC COM COM 12685J105 14,115 -643 -4.36 1,593 -39.05 0.0013
2025-11-06 2025-09-30 13F CABLE ONE INC COM COM 12685J105 14,758 4 0.03 2,613 30.40 0.0021
2025-08-12 2025-06-30 13F CABLE ONE INC COM COM 12685J105 14,754 -252 -1.68 2,004 -49.77 0.0017
2025-05-29 2025-03-31 13F/A-1 CABLE ONE INC COM COM 12685J105 15,006 -595 -3.81 3,988 -29.40 0.0037
2025-04-08 2025-03-31 13F CABLE ONE INC COM COM 12685J105 15,006 -595 3,988 0.0037
2025-05-29 2024-12-31 13F/A-1 CABLE ONE INC COM COM 12685J105 15,601 -47 -0.30 5,649 3.22 0.0051
2025-01-30 2024-12-31 13F CABLE ONE INC COM COM 12685J105 15,601 -47 5,649 0.0051
2024-11-12 2024-09-30 13F CABLE ONE INC COM COM 12685J105 15,648 -19 -0.12 5,473 -1.32 0.0049
2024-08-01 2024-06-30 13F CABLE ONE INC COM COM 12685J105 15,667 1,490 10.51 5,546 -7.54 0.0052
2024-05-09 2024-03-31 13F CABLE ONE INC COM COM 12685J105 14,177 -722 -4.85 5,999 -27.67 0.0058
2024-02-08 2023-12-31 13F CABLE ONE INC COM COM 12685J105 14,899 -432 -2.82 8,293 -12.14 0.0087
2023-11-09 2023-09-30 13F CABLE ONE INC COM COM 12685J105 15,331 -6,554 -29.95 9,438 -34.37 0.0110
2023-08-08 2023-06-30 13F CABLE ONE INC COM COM 12685J105 21,885 -227 -1.03 14,380 95,766.67 0.0161
2023-05-11 2023-03-31 13F CABLE ONE INC COM COM 12685J105 22,112 2,366 11.98 16 -99.89 0.0192
2023-02-14 2022-12-31 13F CABLE ONE INC COM COM 12685J105 19,746 679 3.56 14,056 -13.58 0.0189
2022-11-10 2022-09-30 13F CABLE ONE INC COM COM 12685J105 19,067 816 4.47 16,265 -30.88 0.0242
2022-08-11 2022-06-30 13F CABLE ONE INC COM COM 12685J105 18,251 1,506 8.99 23,531 -4.03 0.0343
2022-05-12 2022-03-31 13F CABLE ONE INC COM COM 12685J105 16,745 471 2.89 24,519 -14.56 0.0316
2022-02-10 2021-12-31 13F CABLE ONE INC COM COM 12685J105 16,274 547 3.48 28,698 0.64 0.0352
2021-11-12 2021-09-30 13F CABLE ONE INC COM COM 12685J105 15,727 -2,731 -14.80 28,515 -19.24 0.0386
2021-08-05 2021-06-30 13F CABLE ONE INC COM COM 12685J105 18,458 -378 -2.01 35,307 2.52 0.0463
2021-05-06 2021-03-31 13F CABLE ONE INC COM COM 12685J105 18,836 192 1.03 34,439 -17.08 0.0468
2021-02-10 2020-12-31 13F CABLE ONE INC COM COM 12685J105 18,644 -526 -2.74 41,534 14.91 0.0573
2020-11-12 2020-09-30 13F CABLE ONE INC COM COM 12685J105 19,170 4,284 28.78 36,144 36.81 0.0566
2020-08-13 2020-06-30 13F CABLE ONE INC COM COM 12685J105 14,886 2,045 15.93 26,420 25.15 0.0441
2020-05-06 2020-03-31 13F CABLE ONE INC COM COM 12685J105 12,841 -175 -1.34 21,111 8.97 0.0442
2020-02-05 2019-12-31 13F CABLE ONE INC COM COM 12685J105 13,016 235 1.84 19,374 20.82 0.0324
2019-10-23 2019-09-30 13F CABLE ONE INC COM COM 12685J105 12,781 -171 -1.32 16,036 5.73 0.0293
2019-08-14 2019-06-30 13F CABLE ONE INC COM COM 12685J105 12,952 164 1.28 15,167 20.85 0.0285
2019-05-01 2019-03-31 13F CABLE ONE INC COM COM 12685J105 12,788 96 0.76 12,550 20.57 0.0243
2019-01-31 2018-12-31 13F CABLE ONE INC COM COM 12685J105 12,692 3,587 39.40 10,409 29.38 0.0226
2018-11-07 2018-09-30 13F CABLE ONE INC COM COM 12685J105 9,105 -22 -0.24 8,045 20.20 0.0155
2018-08-06 2018-06-30 13F CABLE ONE INC COM COM 12685J105 9,127 -279 -2.97 6,693 3.56 0.0135
2018-05-02 2018-03-31 13F CABLE ONE INC COM COM 12685J105 9,406 -410 -4.18 6,463 -6.39 0.0135
2018-02-09 2017-12-31 13F CABLE ONE INC COM COM 12685J105 9,816 -845 -7.93 6,904 -10.33 0.0140
2017-11-06 2017-09-30 13F CABLE ONE INC COM COM 12685J105 10,661 1,151 12.10 7,699 13.87 0.0167
2017-08-02 2017-06-30 13F CABLE ONE INC COM COM 12685J105 9,510 187 2.01 6,761 16.13 0.0154
2017-05-02 2017-03-31 13F CABLE ONE INC COM COM 12685J105 9,323 242 2.66 5,822 3.12 0.0136
2017-01-27 2016-12-31 13F CABLE ONE INC COM COM 12685J105 9,081 296 3.37 5,646 10.06 0.0143
2016-11-08 2016-09-30 13F CABLE ONE INC COM COM 12685J105 8,785 480 5.78 5,130 20.79 0.0141
2016-08-11 2016-06-30 13F CABLE ONE INC COM COM 12685J105 8,305 1,900 29.66 4,247 51.68 0.0126
2016-05-02 2016-03-31 13F CABLE ONE COM 12685J105 6,405 243 3.94 2,800 4.79 0.0087
2016-02-03 2015-12-31 13F CABLE ONE COM 12685J105 6,162 -156 -2.47 2,672 0.83 0.0086
2015-11-04 2015-09-30 13F CABLE ONE COM 12685J105 6,318 6,318 2,650 0.0090
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.