Who owns Harmonic (HLIT)
Which tracked institutional funds hold HLIT, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See HLIT company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
31 tracked funds added or opened HLIT while 76 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
HLIT’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes HLIT more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in HLIT divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 249 tracked filers holding HLIT, 120 increased or opened the position and 156 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in HLIT between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 12
- VANGUARD PORTFOLIO MANAGEMENT LLC$55M
- VANGUARD CAPITAL MANAGEMENT LLC$42M
- VANGUARD FIDUCIARY TRUST CO$7M
- Cinctive Capital Management LP$2M
- Quantbot Technologies LP$1M
- Penn Capital Management Company, LLC$1M
Full exits 22
- VANGUARD GROUP INC$119M
- Pacer Advisors, Inc.$5M
- Ellsworth Advisors, LLC$5M
- Y-Intercept (Hong Kong) Ltd$3M
- TUDOR INVESTMENT CORP ET AL$3M
- HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND$2M
Largest adds
- AMERICAN CENTURY COMPANIES INC$5M
- RENAISSANCE TECHNOLOGIES LLC$5M
- CITADEL ADVISORS LLC$4M
- JANE STREET GROUP, LLC$4M
- First Eagle Investment Management, LLC$2M
- FMR LLC$2M
Largest trims
- BlackRock, Inc.$18M
- MILLENNIUM MANAGEMENT LLC$18M
- SCOPIA CAPITAL MANAGEMENT LP$13M
- Walleye Capital LLC$7M
- D. E. Shaw & Co., Inc.$6M
- MARSHALL WACE, LLP$5M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 18,004,412 | $294M | 22.6% | 2026-Q2 |
| STATE STREET CORP added | 5,147,739 | $84M | 6.5% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 4,793,472 | $78M | 6.0% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 6,134,553 | $55M | 4.2% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 4,700,354 | $42M | 3.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 3,673,398 | $33M | 2.5% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 1,881,400 | $31M | 2.4% | 2026-Q2 |
| Trigran Investments, Inc. trimmed | 3,216,835 | $29M | 2.2% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 1,733,447 | $28M | 2.2% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 1,724,427 | $28M | 2.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,794,248 | $25M | 1.9% | 2026-Q1 |
| First Eagle Investment Management, LLC added | 1,446,133 | $24M | 1.8% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 2,057,760 | $20M | 1.6% | 2026-Q1 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 2,196,469 | $20M | 1.5% | 2026-Q1 |
| Leeward Investments, LLC - MA trimmed | 1,699,702 | $15M | 1.2% | 2026-Q1 |
| MORGAN STANLEY trimmed | 1,687,418 | $15M | 1.2% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 843,479 | $14M | 1.1% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 754,012 | $12M | 0.9% | 2026-Q2 |
| Nuveen, LLC added | 1,367,701 | $12M | 0.9% | 2026-Q1 |
| Silverberg Bernstein Capital Management LLC added | 1,327,455 | $12M | 0.9% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 1,214,235 | $11M | 0.8% | 2026-Q1 |
| NORTHERN TRUST CORP added | 1,194,276 | $11M | 0.8% | 2026-Q1 |
| Invesco Ltd. added | 642,394 | $10M | 0.8% | 2026-Q2 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP trimmed | 1,137,747 | $10M | 0.8% | 2026-Q1 |
| NORGES BANK added | 622,662 | $10M | 0.8% | 2026-Q2 |
| Point72 Asset Management, L.P. added | 573,131 | $9M | 0.7% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,042,038 | $9M | 0.7% | 2026-Q1 |
| Qube Research & Technologies Ltd trimmed | 945,131 | $8M | 0.7% | 2026-Q1 |
| FMR LLC added | 479,851 | $8M | 0.6% | 2026-Q2 |
| Alyeska Investment Group, L.P. trimmed | 803,805 | $7M | 0.6% | 2026-Q1 |
| HERALD INVESTMENT MANAGEMENT Ltd | 785,000 | $7M | 0.5% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 728,451 | $7M | 0.5% | 2026-Q1 |
| Clearline Capital LP trimmed | 726,931 | $7M | 0.5% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 701,151 | $6M | 0.5% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 678,912 | $6M | 0.5% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 671,482 | $6M | 0.5% | 2026-Q1 |
| Hillsdale Investment Management Inc. trimmed | 670,200 | $6M | 0.5% | 2026-Q1 |
| NEEDHAM INVESTMENT MANAGEMENT LLC added | 668,000 | $6M | 0.5% | 2026-Q1 |
| SILVERBACK ASSET MANAGEMENT LLC trimmed | 648,566 | $6M | 0.4% | 2026-Q1 |
| SCOPIA CAPITAL MANAGEMENT LP trimmed | 643,743 | $6M | 0.4% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 642,273 | $6M | 0.4% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 632,238 | $6M | 0.4% | 2026-Q1 |
| STATE OF WISCONSIN INVESTMENT BOARD trimmed | 612,931 | $6M | 0.4% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 326,032 | $5M | 0.4% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 320,124 | $5M | 0.4% | 2026-Q2 |
| Toronado Partners, LLC trimmed | 565,065 | $5M | 0.4% | 2026-Q1 |
| UBS Group AG added | 469,800 | $4M | 0.3% | 2026-Q1 |
| ExodusPoint Capital Management, LP added | 244,226 | $4M | 0.3% | 2026-Q2 |
| PHILADELPHIA TRUST CO trimmed | 440,625 | $4M | 0.3% | 2026-Q1 |
| Public Sector Pension Investment Board added | 401,509 | $4M | 0.3% | 2026-Q1 |
| INTECH INVESTMENT MANAGEMENT LLC trimmed | 383,876 | $3M | 0.3% | 2026-Q1 |
| MARTINGALE ASSET MANAGEMENT L P added | 334,686 | $3M | 0.2% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 329,728 | $3M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 314,307 | $3M | 0.2% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 309,021 | $3M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 290,680 | $3M | 0.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 270,419 | $2M | 0.2% | 2026-Q1 |
| ROYCE & ASSOCIATES LP | 266,192 | $2M | 0.2% | 2026-Q1 |
| Cinctive Capital Management LP new | 260,372 | $2M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 256,082 | $2M | 0.2% | 2026-Q1 |
| Swiss National Bank | 224,315 | $2M | 0.2% | 2026-Q1 |
| LSV ASSET MANAGEMENT added | 206,600 | $2M | 0.1% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 188,116 | $2M | 0.1% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC added | 176,920 | $2M | 0.1% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 94,328 | $2M | 0.1% | 2026-Q2 |
| Quantbot Technologies LP added | 164,081 | $1M | 0.1% | 2026-Q1 |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM trimmed | 156,982 | $1M | 0.1% | 2026-Q1 |
| WINTON GROUP Ltd added | 140,279 | $1M | 0.1% | 2026-Q1 |
| Brevan Howard Capital Management LP added | 71,870 | $1M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 126,667 | $1M | 0.1% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 123,733 | $1M | 0.1% | 2026-Q1 |
| Susquehanna Portfolio Strategies, LLC trimmed | 121,439 | $1M | 0.1% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC added | 117,807 | $1M | 0.1% | 2026-Q1 |
| Penn Capital Management Company, LLC new | 116,424 | $1M | 0.1% | 2026-Q1 |
| STIFEL FINANCIAL CORP trimmed | 115,003 | $1M | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 111,039 | $997K | 0.1% | 2026-Q1 |
| EntryPoint Capital, LLC added | 108,917 | $978K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC added | 12,022,963 | $119M | 9.1% | 2025-Q4 stale |
| WELLINGTON MANAGEMENT GROUP LLP added | 992,472 | $10M | 0.8% | 2025-Q3 stale |
| Pacer Advisors, Inc. trimmed | 522,004 | $5M | 0.4% | 2025-Q4 stale |
| Ellsworth Advisors, LLC trimmed | 461,812 | $5M | 0.4% | 2025-Q4 stale |
| Cubist Systematic Strategies, LLC added | 391,883 | $4M | 0.3% | 2025-Q2 stale |
| Y-Intercept (Hong Kong) Ltd trimmed | 310,754 | $3M | 0.2% | 2025-Q4 stale |
| Stanley-Laman Group, Ltd. trimmed | 300,196 | $3M | 0.2% | 2025-Q1 stale |
| TUDOR INVESTMENT CORP ET AL trimmed | 289,411 | $3M | 0.2% | 2025-Q4 stale |
| Assenagon Asset Management S.A. trimmed | 265,347 | $3M | 0.2% | 2025-Q3 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND new | 223,707 | $2M | 0.2% | 2025-Q4 stale |
| Advantage Alpha Capital Partners LP trimmed | 196,924 | $2M | 0.2% | 2025-Q3 stale |
| AXA Investment Managers S.A. new | 180,457 | $2M | 0.1% | 2025-Q3 stale |
| ALGERT GLOBAL LLC added | 174,220 | $2M | 0.1% | 2025-Q3 stale |
| Bouvel Investment Partners, LLC added | 120,524 | $2M | 0.1% | 2025-Q1 stale |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 176,085 | $2M | 0.1% | 2025-Q4 stale |
| Integrated Quantitative Investments LLC added | 161,698 | $2M | 0.1% | 2025-Q4 stale |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 147,049 | $1M | 0.1% | 2025-Q4 stale |
| EXCHANGE TRADED CONCEPTS, LLC added | 127,095 | $1M | 0.1% | 2025-Q4 stale |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC trimmed | 116,218 | $1M | 0.1% | 2025-Q4 stale |
| Alberta Investment Management Corp new | 117,000 | $1M | 0.1% | 2025-Q2 stale |
| NOMURA HOLDINGS INC added | 112,297 | $1M | 0.1% | 2025-Q2 stale |
| VIRGINIA RETIREMENT SYSTEMS ET Al trimmed | 107,500 | $1M | 0.1% | 2025-Q4 stale |
| DEAN INVESTMENT ASSOCIATES, LLC trimmed | 103,329 | $1M | 0.1% | 2025-Q4 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.