Optimum Communications, Inc.
US ˙ NYSE ˙ US02156K1034

SecurityOPTU / Optimum Communications, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership1,662,387 shares
Latest Disclosed Value $ 2,161,425
Dimensional Fund Advisors Lp reports 38.32% decrease in ownership of OPTU / Optimum Communications, Inc.

On May 7, 2026 - Dimensional Fund Advisors Lp filed a 13F-HR form disclosing ownership of 1,662,387 shares of Optimum Communications, Inc. (US:OPTU) valued at $2,161,103 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 2,695,189 shares of Optimum Communications, Inc.. This represents a change in shares of -38.32% during the quarter. The current value of the position is $1,812,002 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)
2026-05-07 2026-03-31 13F OPTIMUM COMMUNICATIONS CL A 02156K103 1,662,387 -1,032,802 -38.32 2,161 -51.39 0.0001
2026-02-12 2025-12-31 13F OPTIMUM COMMUNICATIONS CL A 02156K103 2,695,189 -300,180 -10.02 4,447 -38.40 0.0009
2025-11-12 2025-09-30 13F ALTICE USA CL A 02156K103 2,995,369 77,332 2.65 7,219 15.60 0.0015
2025-08-12 2025-06-30 13F ALTICE USA CL A 02156K103 2,918,037 551,139 23.29 6,245 -0.83 0.0014
2025-05-13 2025-03-31 13F ALTICE USA CL A 02156K103 2,366,898 632,309 36.45 6,297 50.66 0.0016
2025-02-13 2024-12-31 13F ALTICE USA CL A 02156K103 1,734,589 24,375 1.43 4,180 -0.67 0.0010
2024-11-07 2024-09-30 13F ALTICE USA CL A 02156K103 1,710,214 -307,490 -15.24 4,207 2.21 0.0010
2024-08-09 2024-06-30 13F ALTICE USA CL A 02156K103 2,017,704 -368,600 -15.45 4,116 -33.91 0.0011
2024-05-10 2024-03-31 13F ALTICE USA CL A 02156K103 2,386,304 36,644 1.56 6,228 -18.44 0.0017
2024-02-07 2023-12-31 13F ALTICE USA CL A 02156K103 2,349,660 273,575 13.18 7,636 12.46 0.0022
2023-11-09 2023-09-30 13F ALTICE USA CL A 02156K103 2,076,085 24,300 1.18 6,791 9.60 0.0022
2023-08-09 2023-06-30 13F ALTICE USA CL A 02156K103 2,051,785 -152,695 -6.93 6,196 -17.81 0.0020
2023-05-12 2023-03-31 13F ALTICE USA CL A 02156K103 2,204,480 75,925 3.57 7,537 83,644.44 0.0025
2023-02-09 2022-12-31 13F ALTICE USA CL A 02156K103 2,128,555 -287,334 -11.89 10 -99.94 0.0029
2022-11-10 2022-09-30 13F ALTICE USA CL A 02156K103 2,415,889 423,778 21.27 14,084 -23.56 0.0054
2022-08-12 2022-06-30 13F ALTICE USA CL A 02156K103 1,992,111 471,549 31.01 18,425 -2.91 0.0066
2022-05-13 2022-03-31 13F ALTICE USA CLA 02156K103 1,520,562 -67,336 -4.24 18,977 -26.15 0.0058
2022-02-09 2021-12-31 13F ALTICE USA CLA 02156K103 1,587,898 -35,249 -2.17 25,695 -23.58 0.0078
2021-11-12 2021-09-30 13F ALTICE USA CLA 02156K103 1,623,147 -88,928 -5.19 33,622 -42.48 0.0108
2021-08-12 2021-06-30 13F ALTICE USA CLA 02156K103 1,712,075 -178,792 -9.46 58,450 -4.98 0.0185
2021-05-14 2021-03-31 13F ALTICE USA CLA 02156K103 1,890,867 -123,844 -6.15 61,515 -19.37 0.0203
2021-03-08 2020-12-31 13F/A-2 ALTICE USA CLA 02156K103 2,014,711 -52,818 -2.55 76,294 41.92 0.0276
2021-02-11 2020-12-31 13F ALTICE USA CLA 02156K103 2,014,711 -52,818 76,294 27,553.3376
2020-11-12 2020-09-30 13F ALTICE USA CLA 02156K103 2,067,529 10,830 0.53 53,760 15.96 0.0228
2020-08-13 2020-06-30 13F ALTICE USA CLA 02156K103 2,056,699 -63,513 -3.00 46,359 -1.92 0.0204
2020-05-14 2020-03-31 13F ALTICE USA CLA 02156K103 2,120,212 -870,068 -29.10 47,268 -42.17 0.0246
2020-02-14 2019-12-31 13F ALTICE USA CLA 02156K103 2,990,280 -614,619 -17.05 81,743 -20.94 0.0298
2019-11-12 2019-09-30 13F ALTICE USA CLA 02156K103 3,604,899 -188,817 -4.98 103,388 11.93 0.0402
2019-08-13 2019-06-30 13F ALTICE USA CLA 02156K103 3,793,716 -3,147 -0.08 92,368 13.26 0.0359
2019-08-12 2019-03-31 13F/A-2 ALTICE USA CLA 02156K103 3,796,863 582,864 18.14 81,551 53.62 0.0325
2019-05-10 2019-03-31 13F ALTICE USA CLA 02156K103 3,796,863 582,864 81,551
2019-02-26 2018-12-31 13F/A-1 ALTICE USA CLA 02156K103 3,213,999 1,345,640 72.02 53,087 56.66 0.0240
2019-02-13 2018-12-31 13F ALTICE USA CLA 02156K103 3,213,999 1,345,640 53,087
2018-11-13 2018-09-30 13F ALTICE USA CLA 02156K103 1,868,359 1,359,800 267.38 33,887 290.81 0.0129
2018-08-10 2018-06-30 13F ALTICE USA CLA 02156K103 508,559 508,559 8,671 0.0035
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.