Harmonic Inc.
GB ˙ LSE ˙ US4131601027
13,46 US$ ↓ −1,06 (−7,29%)
2026-06-05
DELAT PRIS
SecurityGB:0J38 / Harmonic Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership469,800 shares
Latest Disclosed Value $ 4,218,804
UBS Group AG ownership in 0J38 / Harmonic Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 469,800 shares of Harmonic Inc. (GB:0J38) valued at $4,223,502 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 363,794 shares of Harmonic Inc.. This represents a change in shares of 29.14% during the quarter. The current value of the position is $6,323,508 USD.

UBS Group AG has a history of taking positions in derivatives of the underlying security (0J38) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

GB:0J38 / Harmonic Inc. Historical Put/Call Ratio
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)
2026-05-05 2026-03-31 13F HARMONIC COM 413160102 469,800 106,006 29.14 4,219 17.26 0.0001
2026-01-29 2025-12-31 13F HARMONIC COM 413160102 363,794 16,659 4.80 3,598 1.81 0.0001
2025-11-13 2025-09-30 13F HARMONIC COM 413160102 347,135 -877,063 -71.64 3,534 -69.52 0.0006
2025-08-14 2025-06-30 13F HARMONIC COM 413160102 1,224,198 -507,003 -29.29 11,593 -30.17 0.0020
2025-05-13 2025-03-31 13F HARMONIC COM 413160102 1,731,201 681,405 64.91 16,602 19.54 0.0031
2025-02-14 2024-12-31 13F HARMONIC COM 413160102 1,049,796 989,879 1,652.08 13,889 1,492.66 0.0026
2024-11-14 2024-09-30 13F HARMONIC COM 413160102 59,917 33,199 124.26 873 177.71 0.0002
2024-08-14 2024-06-30 13F HARMONIC COM 413160102 26,718 -53,665 -66.76 314 -70.93 0.0001
2024-05-13 2024-03-31 13F HARMONIC COM 413160102 80,383 -10,432 -11.49 1,080 -8.78 0.0003
2024-02-09 2023-12-31 13F HARMONIC COM 413160102 90,815 65,888 264.32 1,184 393.33 0.0004
2023-11-09 2023-09-30 13F HARMONIC COM 413160102 24,927 -54,859 -68.76 240 -81.40 0.0001
2023-08-11 2023-06-30 13F HARMONIC COM 413160102 79,786 44,385 125.38 1,290 150.00 0.0004
2023-05-12 2023-03-31 13F HARMONIC COM 413160102 35,401 3,207 9.96 517 22.57 0.0002
2023-02-08 2022-12-31 13F HARMONIC COM 413160102 32,194 6,168 23.70 422 23.46 0.0002
2022-11-10 2022-09-30 13F HARMONIC COM 413160102 26,026 8,871 51.71 341 128.86 0.0001
2022-08-10 2022-06-30 13F HARMONIC COM 413160102 17,155 -11,838 -40.83 149 -44.81 0.0001
2022-05-16 2022-03-31 13F HARMONIC COM 413160102 28,993 -28,861 -49.89 270 -60.29 0.0001
2022-02-14 2021-12-31 13F HARMONIC COM 413160102 57,854 -55,841 -49.11 680 -31.66 0.0002
2021-11-15 2021-09-30 13F HARMONIC COM 413160102 113,695 73,458 182.56 995 190.09 0.0003
2021-08-13 2021-06-30 13F HARMONIC COM 413160102 40,237 -27,128 -40.27 343 -35.04 0.0001
2021-05-12 2021-03-31 13F HARMONIC COM 413160102 67,365 -16,259 -19.44 528 -14.56 0.0002
2021-02-11 2020-12-31 13F HARMONIC COM 413160102 83,624 34,566 70.46 618 126.37 0.0002
2020-11-12 2020-09-30 13F HARMONIC COM 413160102 49,058 -20,838 -29.81 273 -17.77 0.0001
2020-07-31 2020-06-30 13F HARMONIC COM 413160102 69,896 -10,371 -12.92 332 -28.29 0.0001
2020-05-01 2020-03-31 13F HARMONIC COM 413160102 80,267 -59,263 -42.47 463 -57.44 0.0002
2020-02-14 2019-12-31 13F HARMONIC COM 413160102 139,530 47,357 51.38 1,088 79.54 0.0004
2019-11-14 2019-09-30 13F HARMONIC COM 413160102 92,173 49,826 117.66 606 157.87 0.0002
2019-08-14 2019-06-30 13F HARMONIC COM 413160102 42,347 17,514 70.53 235 74.07 0.0001
2019-05-14 2019-03-31 13F HARMONIC COM 413160102 24,833 -29,080 -53.94 135 -46.85 0.0001
2019-02-14 2018-12-31 13F HARMONIC COM 413160102 53,913 8,072 17.61 254 0.79 0.0001
2018-11-14 2018-09-30 13F HARMONIC COM 413160102 45,841 11,374 33.00 252 72.60 0.0001
2018-08-14 2018-06-30 13F HARMONIC COM 413160102 34,467 1,178 3.54 146 14.96 0.0001
2018-05-15 2018-03-31 13F HARMONIC COM 413160102 33,289 -7,141 -17.66 127 -24.85 0.0001
2018-02-14 2017-12-31 13F HARMONIC COM 413160102 40,430 -2,826 -6.53 169 28.03 0.0001
2017-11-14 2017-09-30 13F HARMONIC COM 413160102 43,256 13,688 46.29 132 -14.84 0.0001
2017-11-14 2017-06-30 13F/A-1 HARMONIC COM 413160102 29,568 1,859 6.71 155 -6.06 0.0001
2017-08-14 2017-06-30 13F HARMONIC COM 413160102 29,568 1,859 155
2017-11-14 2017-03-31 13F/A-1 HARMONIC COM 413160102 27,709 -11,811 -29.89 165 -16.67 0.0001
2017-05-12 2017-03-31 13F HARMONIC COM 413160102 27,709 -11,811 165
2017-02-14 2016-12-31 13F HARMONIC COM 413160102 39,520 5,562 16.38 198 -1.49 0.0001
2016-11-14 2016-09-30 13F HARMONIC COM 413160102 33,958 -9,390 -21.66 201 63.41 0.0001
2016-08-12 2016-06-30 13F HARMONIC COM 413160102 43,348 13,991 47.66 123 28.13 0.0001
2016-05-12 2016-03-31 13F HARMONIC COM 413160102 29,357 -5,831 -16.57 96 -32.87 0.0001
2016-02-16 2015-12-31 13F HARMONIC COM 413160102 35,188 4,157 13.40 143 -20.11 0.0001
2015-11-13 2015-09-30 13F HARMONIC COM 413160102 31,031 -1,121 -3.49 179 -18.64 0.0001
2015-08-14 2015-06-30 13F HARMONIC COM 413160102 32,152 4,215 15.09 220 6.28 0.0001
2015-05-14 2015-03-31 13F HARMONIC COM 413160102 27,937 -1,467 -4.99 207 0.49 0.0001
2015-02-17 2014-12-31 13F HARMONIC COM 413160102 29,404 29,404 206 0.0001
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2023-08-11 2023-06-30 13F HARMONIC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-12 2023-03-31 13F HARMONIC COM Call 12,600 184 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2023-08-11 2023-06-30 13F HARMONIC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-12 2023-03-31 13F HARMONIC COM Put 6,700 98 n/a n/a n/a
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.