Harmonic Inc.
DE ˙ DB ˙ US4131601027
12,25 EUR ↓ -0,05 (-0,41%)
2026-06-05
PREȚUL ACȚIUNILOR
SecurityDE:HMC / Harmonic Inc.
InstitutionAlliancebernstein L.p.
Latest Disclosed Ownership2,057,760 shares
Latest Disclosed Value $ 20,351,246
Alliancebernstein L.p. reports 14.25% decrease in ownership of HMC / Harmonic Inc.

On May 15, 2026 - Alliancebernstein L.p. filed a 13F-HR form disclosing ownership of 2,057,760 shares of Harmonic Inc. (DE:HMC) valued at $15,774,788 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,399,636 shares of Harmonic Inc.. This represents a change in shares of -14.25% during the quarter. The current value of the position is $25,207,560 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 HARMONIC COM 413160102 2,057,760 -341,876 -14.25 20,351 -14.25 0.0066
2026-02-17 2025-12-31 13F HARMONIC COM 413160102 2,399,636 -7,309 -0.30 23,732 -3.14 0.0075
2025-11-14 2025-09-30 13F HARMONIC COM 413160102 2,406,945 68,921 2.95 24,503 10.66 0.0077
2025-08-14 2025-06-30 13F HARMONIC COM 413160102 2,338,024 -277,097 -10.60 22,141 -11.71 0.0072
2025-05-15 2025-03-31 13F HARMONIC COM 413160102 2,615,121 469,764 21.90 25,079 -11.64 0.0091
2025-02-12 2024-12-31 13F HARMONIC COM 413160102 2,145,357 175,133 8.89 28,383 -1.13 0.0096
2024-11-14 2024-09-30 13F HARMONIC COM 413160102 1,970,224 -729,749 -27.03 28,706 -9.67 0.0096
2024-08-14 2024-06-30 13F HARMONIC COM 413160102 2,699,973 -33,134 -1.21 31,779 -13.49 0.0111
2024-05-14 2024-03-31 13F HARMONIC COM 413160102 2,733,107 -99,651 -3.52 36,733 -0.56 0.0130
2024-02-14 2023-12-31 13F HARMONIC COM 413160102 2,832,758 2,713,611 2,277.53 36,939 3,120.49 0.0142
2023-11-14 2023-09-30 13F HARMONIC COM 413160102 119,147 -2,182 -1.80 1,147 -41.51 0.0005
2023-08-15 2023-06-30 13F HARMONIC COM 413160102 121,329 19,186 18.78 1,962 31.61 0.0008
2023-05-15 2023-03-31 13F HARMONIC COM 413160102 102,143 -17,498 -14.63 1,490 -4.91 0.0006
2023-02-15 2022-12-31 13F HARMONIC COM 413160102 119,641 20,108 20.20 1,567 20.45 0.0007
2022-11-15 2022-09-30 13F HARMONIC COM 413160102 99,533 2,862 2.96 1,301 55.25 0.0006
2022-08-15 2022-06-30 13F HARMONIC COM 413160102 96,671 2,126 2.25 838 -4.56 0.0004
2022-05-13 2022-03-31 13F HARMONIC COM 413160102 94,545 11,064 13.25 878 -10.59 0.0003
2022-02-14 2021-12-31 13F HARMONIC COM 413160102 83,481 1,382 1.68 982 36.77 0.0003
2021-11-10 2021-09-30 13F HARMONIC COM 413160102 82,099 29,130 54.99 718 59.20 0.0003
2021-07-30 2021-06-30 13F HARMONIC COM 413160102 52,969 -50 -0.09 451 8.41 0.0002
2021-05-06 2021-03-31 13F HARMONIC COM 413160102 53,019 -33,290 -38.57 416 -34.80 0.0002
2021-02-08 2020-12-31 13F HARMONIC COM 413160102 86,309 -34,900 -28.79 638 -5.62 0.0003
2020-11-12 2020-09-30 13F HARMONIC COM 413160102 121,209 -12,070 -9.06 676 6.79 0.0004
2020-08-13 2020-06-30 13F HARMONIC COM 413160102 133,279 2,480 1.90 633 -15.94 0.0004
2020-05-14 2020-03-31 13F HARMONIC COM 413160102 130,799 510 0.39 753 -25.89 0.0005
2020-02-18 2019-12-31 13F HARMONIC COM 413160102 130,289 4,800 3.83 1,016 23.00 0.0006
2019-11-14 2019-09-30 13F HARMONIC COM 413160102 125,489 15,900 14.51 826 35.86 0.0005
2019-08-14 2019-06-30 13F HARMONIC COM 413160102 109,589 39,500 56.36 608 60.00 0.0004
2019-05-14 2019-03-31 13F HARMONIC COM 413160102 70,089 -8,900 -11.27 380 1.88 0.0002
2019-02-13 2018-12-31 13F HARMONIC COM 413160102 78,989 11,200 16.52 373 0.00 0.0003
2018-11-08 2018-09-30 13F HARMONIC COM 413160102 67,789 0 0.00 373 29.51 0.0002
2018-08-13 2018-06-30 13F HARMONIC COM 413160102 67,789 5,400 8.66 288 21.52 0.0002
2018-05-14 2018-03-31 13F HARMONIC COM 413160102 62,389 7,600 13.87 237 3.04 0.0002
2018-02-13 2017-12-31 13F HARMONIC COM 413160102 54,789 -2,270 -3.98 230 32.18 0.0002
2017-11-13 2017-09-30 13F HARMONIC COM 413160102 57,059 0 0.00 174 -42.00 0.0001
2017-08-10 2017-06-30 13F HARMONIC COM 413160102 57,059 -28,200 -33.08 300 -40.83 0.0002
2017-05-11 2017-03-31 13F HARMONIC COM 413160102 85,259 -4,900 -5.43 507 12.42 0.0004
2017-02-13 2016-12-31 13F HARMONIC COM 413160102 90,159 0 0.00 451 -15.70 0.0004
2016-11-10 2016-09-30 13F HARMONIC COM 413160102 90,159 0 0.00 535 108.17 0.0005
2016-08-11 2016-06-30 13F HARMONIC COM 413160102 90,159 -1,000 -1.10 257 -13.76 0.0002
2016-05-13 2016-03-31 13F HARMONIC COM 413160102 91,159 0 0.00 298 -19.68 0.0003
2016-02-16 2015-12-31 13F/A-1 HARMONIC COM 413160102 91,159 -84,400 -48.08 371 -63.56 0.0003
2016-02-12 2015-12-31 13F HARMONIC COM 413160102 91,159 529
2015-11-13 2015-09-30 13F HARMONIC COM 413160102 175,559 -8,730 -4.74 1,018 -19.14 0.0009
2015-08-14 2015-06-30 13F HARMONIC COM 413160102 184,289 0 0.00 1,259 -7.83 0.0010
2015-05-13 2015-03-31 13F HARMONIC COM 413160102 184,289 0 0.00 1,366 5.73 0.0011
2015-02-13 2014-12-31 13F HARMONIC COM 413160102 184,289 0 0.00 1,292 10.62 0.0011
2014-11-13 2014-09-30 13F HARMONIC COM 413160102 184,289 0 0.00 1,168 -15.05 0.0010
2014-08-13 2014-06-30 13F HARMONIC COM 413160102 184,289 -13,626 -6.88 1,375 -2.69 0.0012
2014-05-13 2014-03-31 13F HARMONIC COM 413160102 197,915 192 0.10 1,413 -3.15 0.0012
2014-02-13 2013-12-31 13F HARMONIC COM 413160102 197,723 72 0.04 1,459 -4.01 0.0013
2013-11-14 2013-09-30 13F HARMONIC COM 413160102 197,651 62 0.03 1,520 21.12 0.0015
2013-08-13 2013-06-30 13F HARMONIC COM 413160102 197,589 197,589 1,255 0.0013
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.