HARMONIC INC HLIT
COM · Common Stock · CUSIP 413160102 · ISIN US4131601027
- SectorTechnology
- IndustryRadio & Tv Broadcasting & Communications Equipment
- HeadquartersSan Jose, CA
- Founded1988
- Websiteharmonicinc.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($4.6m this quarter). Holder counts are more reliable. Shares outstanding: 113.8m as of 2025-07-28, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $9.47. Options: 5 managers hold calls ($417.8k notional), 3 hold puts ($297.7k).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 209 |
| Q4 2022 | 219 |
| Q1 2023 | 203 |
| Q2 2023 | 225 |
| Q3 2023 | 213 |
| Q4 2023 | 200 |
| Q1 2024 | 200 |
| Q2 2024 | 207 |
| Q3 2024 | 227 |
| Q4 2024 | 232 |
| Q1 2025 | 249 |
| Q2 2025 | 246 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 115 | 121 |
| Q4 2023 | 94 | 113 |
| Q1 2024 | 96 | 108 |
| Q2 2024 | 113 | 96 |
| Q3 2024 | 113 | 101 |
| Q4 2024 | 108 | 113 |
| Q1 2025 | 131 | 104 |
| Q2 2025 | 120 | 131 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $4.5m | $1.3m | 0.29 |
| Q4 2024 | $3.3m | $1.3m | 0.38 |
| Q1 2025 | $286.2k | $397.2k | 1.39 |
| Q2 2025 | $417.8k | $297.7k | 0.71 |
Biggest buyers
| MARSHALL WACE, LLP | Added | +1.0m |
| SILVERBACK ASSET MANAGEMENT LLC | New | +710.0k |
| Pacer Advisors, Inc. | New | +697.6k |
| Hillsdale Investment Management Inc. | New | +573.6k |
| D. E. Shaw & Co., Inc. | Added | +568.5k |
| LAZARD ASSET MANAGEMENT LLC | Added | +513.0k |
| Nuveen, LLC | Added | +485.3k |
| First Eagle Investment Management, LLC | Added | +399.8k |
| VANGUARD GROUP INC | Added | +388.5k |
| Qube Research & Technologies Ltd | Added | +371.3k |
Biggest sellers
| Invesco Ltd. | Reduced | -3.6m |
| Alyeska Investment Group, L.P. | Reduced | -1.2m |
| SILVERBACK ASSET MANAGEMENT LLC | Sold out | -725.0k |
| BlackRock, Inc. | Reduced | -576.2k |
| UBS Group AG | Reduced | -507.0k |
| Trigran Investments, Inc. | Reduced | -498.7k |
| SCOPIA CAPITAL MANAGEMENT LP | Reduced | -400.5k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -325.4k |
| Stanley-Laman Group, Ltd. | Sold out | -300.2k |
| VICTORY CAPITAL MANAGEMENT INC | Reduced | -291.6k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $390.2k41.2k shares |
| SIMPLEX TRADING, LLC | Added | $18.0k2.0k shares |
| GROUP ONE TRADING LLC | Reduced | $9.5k1.0k shares |
| OLIVER LAGORE VANVALIN INVESTMENT GROUP | First filing | $132400 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $291.7k30.8k shares |
| SIMPLEX TRADING, LLC | Added | $6.0k700 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.6% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.0% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 3 | $2.2m | — |
| Q2 2024 | 0 | — | 1 | $577.4k | — |
| Q3 2024 | 0 | — | 1 | $576.4k | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 4 | $326.6k | 0 | — | — |
| Q2 2025 | 1 | $18.0k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-05-30 | Whalen Daniel T Director | Bought | $18.0k2.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 17.0m $160.8m | Reduced -576.2k |
| VANGUARD GROUP INC 0.00% of their portfolio | 11.9m $112.3m | Added +388.5k |
| Invesco Ltd. 0.01% of their portfolio | 4.4m $42.1m | Reduced -3.6m |
| STATE STREET CORP 0.00% of their portfolio | 4.3m $40.8m | Reduced -201.8k |
| Trigran Investments, Inc. 5.91% of their portfolio | 3.6m $34.0m | Reduced -498.7k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 3.4m $32.4m | Added +231.9k |
| SCOPIA CAPITAL MANAGEMENT LP 3.51% of their portfolio | 3.0m $28.7m | Reduced -400.5k |
| MILLENNIUM MANAGEMENT LLC 0.03% of their portfolio | 3.0m $28.5m | Reduced -325.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 2.8m $26.3m | Added +20.8k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 2.3m $22.1m | Reduced -277.1k |
| D. E. Shaw & Co., Inc. 0.02% of their portfolio | 2.2m $20.9m | Added +568.5k |
| MORGAN STANLEY 0.00% of their portfolio | 2.0m $18.9m | Added +37.4k |
| MARSHALL WACE, LLP 0.02% of their portfolio | 1.9m $18.2m | Added +1.0m |
| Alyeska Investment Group, L.P. 0.06% of their portfolio | 1.8m $17.4m | Reduced -1.2m |
| Leeward Investments, LLC - MA 0.85% of their portfolio | 1.7m $16.0m | Reduced -62.4k |
| Nuveen, LLC 0.00% of their portfolio | 1.4m $13.1m | Added +485.3k |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 1.4m $13.0m | Added +371.3k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 1.3m $12.1m | Added +50.4k |
| UBS Group AG 0.00% of their portfolio | 1.2m $11.6m | Reduced -507.0k |
| Toronado Partners, LLC 8.04% of their portfolio | 1.2m $11.3m | Unchanged |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.29% of their portfolio | 1.2m $10.9m | Added +14.2k |
| Silverberg Bernstein Capital Management LLC 7.28% of their portfolio | 1.1m $10.6m | Added +287.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 1.1m $10.1m | Reduced -63.1k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 862.7k $8.2m | Reduced -44.5k |
| TUDOR INVESTMENT CORP ET AL 0.06% of their portfolio | 856.6k $8.1m | Added +126.3k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 826.7k $7.8m | Added +202.4k |
| HERALD INVESTMENT MANAGEMENT Ltd 1.10% of their portfolio | 785.0k $7.4m | Unchanged |
| LAZARD ASSET MANAGEMENT LLC 0.01% of their portfolio | 719.0k $6.8m | Added +513.0k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 711.6k $6.7m | Added +354.8k |
| SILVERBACK ASSET MANAGEMENT LLC 1.03% of their portfolio | 710.0k $6.7m | New |
| Pacer Advisors, Inc. 0.02% of their portfolio | 697.6k $6.6m | New |
| ROYCE & ASSOCIATES LP 0.07% of their portfolio | 690.4k $6.5m | Reduced -416 |
| Bank of New York Mellon Corp 0.00% of their portfolio | 688.7k $6.5m | Added +8.0k |
| First Eagle Investment Management, LLC 0.01% of their portfolio | 661.4k $6.3m | Added +399.8k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 643.3k $6.1m | Added +11.1k |
| PHILADELPHIA TRUST CO 0.45% of their portfolio | 612.8k $5.8m | Added +740 |
| Clearline Capital LP 0.50% of their portfolio | 599.8k $5.7m | Unchanged |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 576.3k $5.5m | Added +251.0k |
| Hillsdale Investment Management Inc. 0.20% of their portfolio | 573.6k $5.4m | New |
| NEEDHAM INVESTMENT MANAGEMENT LLC 0.43% of their portfolio | 565.0k $5.4m | Unchanged |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 560.8k $5.3m | Reduced -23.1k |
| INTECH INVESTMENT MANAGEMENT LLC 0.05% of their portfolio | 533.4k $5.1m | Reduced -15.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 513.2k $4.9m | Added +159.7k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 503.6k $4.8m | Reduced -15.8k |
| NEUBERGER BERMAN GROUP LLC 0.00% of their portfolio | 451.7k $4.3m | Reduced -19.8k |
| Squarepoint Ops LLC 0.01% of their portfolio | 436.5k $4.1m | Added +39.4k |
| Cubist Systematic Strategies, LLC 0.04% of their portfolio | 391.9k $3.7m | Added +116.3k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 385.6k $3.7m | Added +14.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 367.7k $3.5m | Reduced -95.2k |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 347.2k $3.3m | Added +191.1k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 329.4k $3.1m | Added +21.0k |
| Y-Intercept (Hong Kong) Ltd 0.07% of their portfolio | 322.8k $3.1m | Added +215.3k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 318.3k $3.0m | Reduced -203.1k |
| Legal & General Group Plc 0.00% of their portfolio | 317.6k $3.0m | Added +4.7k |
| Assenagon Asset Management S.A. 0.00% of their portfolio | 285.8k $2.7m | Reduced -62.6k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 251.2k $2.4m | Added +238.8k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.07% of their portfolio | 233.1k $2.2m | Reduced -22.6k |
| Verition Fund Management LLC 0.01% of their portfolio | 227.5k $2.2m | Added +109.1k |
| Swiss National Bank 0.00% of their portfolio | 223.5k $2.1m | Reduced -2.2k |
| Balyasny Asset Management L.P. 0.00% of their portfolio | 216.7k $2.1m | Added +92.0k |
| BARCLAYS PLC 0.00% of their portfolio | 213.8k $2.0m | Added +64.4k |
| DEAN INVESTMENT ASSOCIATES, LLC 0.30% of their portfolio | 212.3k $2.0m | Added +6.4k |
| Advantage Alpha Capital Partners LP 0.54% of their portfolio | 209.9k $2.0m | Reduced -243.9k |
| Dean Capital Management 0.67% of their portfolio | 171.0k $1.6m | Added +26.0k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 168.2k $1.6m | Reduced -4.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 165.2k $1.6m | Added +10.9k |
| DARK FOREST CAPITAL MANAGEMENT LP 0.06% of their portfolio | 160.3k $1.5m | Reduced -96.1k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 156.9k $1.5m | Reduced -90.6k |
| ALGERT GLOBAL LLC 0.03% of their portfolio | 154.6k $1.5m | Reduced -99.9k |
| NORGES BANK 0.00% of their portfolio | 150.6k $1.4m | Unchanged |
| AlphaQuest LLC 0.13% of their portfolio | 139.9k $1.3m | Added +112.2k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 139.0k $1.3m | Reduced -156.4k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 125.9k $1.2m | Added +930 |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 119.5k $1.1m | Reduced -378 |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 118.2k $1.1m | Added +1.8k |
| Trexquant Investment LP 0.01% of their portfolio | 117.2k $1.1m | Reduced -290.6k |
| GABELLI FUNDS LLC 0.01% of their portfolio | 117.2k $1.1m | Added +97.2k |
| Alberta Investment Management Corp 0.01% of their portfolio | 117.0k $1.1m | New |
| Integrated Quantitative Investments LLC 0.32% of their portfolio | 116.8k $1.1m | Unchanged |
| NOMURA HOLDINGS INC 0.01% of their portfolio | 112.3k $1.1m | New |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 110.9k $1.1m | Added +78.2k |
| Manatuck Hill Partners, LLC 0.39% of their portfolio | 108.3k $1.0m | New |
| CITIGROUP INC 0.00% of their portfolio | 107.8k $1.0m | Reduced -60.1k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 107.5k $1.0m | Reduced -89.4k |
| Legato Capital Management LLC 0.12% of their portfolio | 107.1k $1.0m | Added +15.7k |
| Susquehanna Portfolio Strategies, LLC 0.02% of their portfolio | 104.5k $989.5k | New |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 104.2k $987.2k | Reduced -291.6k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 102.3k $968.5k | Reduced -1.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 99.5k $943.0k | Added +12.0k |
| VIRGINIA RETIREMENT SYSTEMS ET Al 0.01% of their portfolio | 98.9k $936.6k | Added +42.7k |
| Walleye Capital LLC 0.01% of their portfolio | 93.5k $885.1k | Added +39.8k |
| GSA CAPITAL PARTNERS LLP 0.06% of their portfolio | 91.9k $871.0k | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 90.4k $856.1k | Reduced -25.9k |
| IEQ CAPITAL, LLC 0.01% of their portfolio | 88.9k $841.5k | Added +70.9k |
| Engineers Gate Manager LP 0.01% of their portfolio | 88.2k $834.8k | Added +23.5k |
| Jump Financial, LLC 0.01% of their portfolio | 85.2k $806.8k | New |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 83.2k $788.0k | Reduced -2.8k |
| WINTON GROUP Ltd 0.04% of their portfolio | 81.2k $769.2k | Reduced -260.7k |
| GAMCO INVESTORS, INC. ET AL 0.01% of their portfolio | 74.1k $702.0k | Reduced -1.6k |
| TEACHER RETIREMENT SYSTEM OF TEXAS 0.00% of their portfolio | 73.8k $699.2k | Reduced -994 |