Harmonic Inc.
US ˙ NasdaqGS ˙ US4131601027

SecurityHLIT / Harmonic Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership69,359 shares
Latest Disclosed Value $ 685,920
Sei Investments Co reports 3.96% decrease in ownership of HLIT / Harmonic Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 69,359 shares of Harmonic Inc. (US:HLIT) valued at $685,961 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 72,220 shares of Harmonic Inc.. This represents a change in shares of -3.96% during the quarter. The current value of the position is $920,394 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)
2026-02-13 2025-12-31 13F HARMONIC COM 413160102 69,359 -2,861 -3.96 686 -6.80 0.0007
2025-11-13 2025-09-30 13F HARMONIC COM 413160102 72,220 4,332 6.38 735 14.49 0.0008
2025-08-14 2025-06-30 13F HARMONIC COM 413160102 67,888 -16,194 -19.26 643 -20.35 0.0007
2025-05-14 2025-03-31 13F/A-1 HARMONIC COM 413160102 84,082 4,570 5.75 806 -23.31 0.0010
2025-05-13 2025-03-31 13F HARMONIC COM 413160102 82,519 3,007 883 0.0010
2025-02-11 2024-12-31 13F HARMONIC COM 413160102 79,512 170 0.21 1,052 -9.08 0.0014
2024-11-12 2024-09-30 13F HARMONIC COM 413160102 79,342 30,626 62.87 1,156 101.75 0.0015
2024-08-13 2024-06-30 13F HARMONIC COM 413160102 48,716 503 1.04 573 -11.57 0.0008
2024-05-07 2024-03-31 13F HARMONIC COM 413160102 48,213 -1,406 -2.83 648 0.15 0.0009
2024-02-14 2023-12-31 13F HARMONIC COM 413160102 49,619 4,719 10.51 647 49.77 0.0010
2023-11-14 2023-09-30 13F HARMONIC COM 413160102 44,900 -155,327 -77.58 432 -86.65 0.0008
2023-08-11 2023-06-30 13F HARMONIC COM 413160102 200,227 47,792 31.35 3,238 45.55 0.0056
2023-05-12 2023-03-31 13F HARMONIC COM 413160102 152,435 99,292 186.84 2,224 219.54 0.0041
2023-02-10 2022-12-31 13F HARMONIC COM 413160102 53,143 -20,778 -28.11 696 -27.95 0.0015
2022-11-14 2022-09-30 13F HARMONIC COM 413160102 73,921 48,489 190.66 966 305.88 0.0022
2022-08-15 2022-06-30 13F HARMONIC COM 413160102 25,432 1,233 5.10 238 -3.25 0.0005
2022-05-13 2022-03-31 13F HARMONIC COM 413160102 24,199 -68,988 -74.03 246 -77.68 0.0005
2022-02-14 2021-12-31 13F HARMONIC COM 413160102 93,187 -18,963 -16.91 1,102 9.98 0.0021
2021-11-12 2021-09-30 13F HARMONIC COM 413160102 112,150 89,647 398.38 1,002 377.14 0.0021
2021-08-06 2021-06-30 13F HARMONIC COM 413160102 22,503 7,600 51.00 210 85.84 0.0005
2021-05-12 2021-03-31 13F HARMONIC COM 413160102 14,903 0 0.00 113 0.00 0.0003
2021-02-08 2020-12-31 13F HARMONIC COM 413160102 14,903 14,903 113 0.0003
2020-05-14 2020-03-31 13F HARMONIC COM 413160102 0 -105,926 -100.00 0 -100.00
2020-02-06 2019-12-31 13F HARMONIC COM 413160102 105,926 -30,436 -22.32 827 -7.80 0.0025
2019-11-12 2019-09-30 13F HARMONIC COM 413160102 136,362 136,362 897 0.0023
2018-11-08 2018-09-30 13F HARMONIC COM 413160102 0 -50 -100.00 0 0.0000
2018-08-03 2018-06-30 13F HARMONIC COM 413160102 50 50 0 0.0000
2017-11-06 2017-09-30 13F HARMONIC COM 413160102 0 -27,034 -100.00 0 -100.00
2017-07-31 2017-06-30 13F HARMONIC COM 413160102 27,034 27,034 142 0.0006
2017-05-05 2017-03-31 13F HARMONIC COM 413160102 0 -143,491 -100.00 0 -100.00
2017-02-02 2016-12-31 13F HARMONIC COM 413160102 143,491 -22,443 -13.53 717 -27.13 0.0035
2016-11-04 2016-09-30 13F HARMONIC COM 413160102 165,934 82,902 99.84 984 315.19 0.0050
2016-08-11 2016-06-30 13F HARMONIC COM 413160102 83,032 83,032 237 0.0014
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.