HARMONIC INC (HLIT) Top Institutional Shareholders
HARMONIC INC (HLIT) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $812.77M in HLIT holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of HLIT tracked by InsiderSet, reporting ownership valued at approximately $172.10M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $284.60M, representing an estimated gain of +65.37% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 58% of the total disclosed HLIT value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, State Street Corp, and several other long-term asset managers with concentrated positions in HARMONIC INC (HLIT).
This page ranks the largest institutional HLIT shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
246
Total Reported Value
$812.77M
Largest Holder
Blackrock, Inc.
Largest Position
$172.10M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
124
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 19,165,249 | $172,103,937 | $284,603,948 | +$112,500,011 | +65.37% | |
| Vanguard Portfolio Management Llc | 0.00% | 6,134,553 | $55,088,286 | $91,098,112 | +$36,009,826 | +65.37% | |
| State Street Corp | 0.00% | 4,860,952 | $43,651,349 | $72,185,137 | +$28,533,788 | +65.37% | |
| Vanguard Capital Management Llc | 0.00% | 4,700,354 | $42,209,179 | $69,800,257 | +$27,591,078 | +65.37% | |
| Dimensional Fund Advisors Lp | 0.01% | 3,673,398 | $32,986,621 | $54,549,960 | +$21,563,339 | +65.37% | |
| Trigran Investments, Inc. | 6.91% | 3,216,835 | $28,887,178 | $47,770,000 | +$18,882,822 | +65.37% | |
| D. E. Shaw & Co., Inc. | 0.02% | 3,101,896 | $27,855,026 | $46,063,156 | +$18,208,130 | +65.37% | |
| Geode Capital Management, Llc | 0.00% | 2,794,248 | $25,097,292 | $41,494,583 | +$16,397,291 | +65.33% | |
| Alliancebernstein L.P. | 0.01% | 2,057,760 | $20,351,246 | $30,557,736 | +$10,206,490 | +50.15% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 2,196,469 | $19,724,292 | $32,617,565 | +$12,893,273 | +65.37% | |
| Leeward Investments, Llc - Ma | 0.75% | 1,699,702 | $15,263,324 | $25,240,575 | +$9,977,251 | +65.37% | |
| Morgan Stanley | 0.00% | 1,687,418 | $15,153,018 | $25,058,157 | +$9,905,139 | +65.37% | |
| Marshall Wace, Llp | 0.01% | 1,445,279 | $12,978,605 | $21,462,393 | +$8,483,788 | +65.37% | |
| Nuveen, Llc | 0.00% | 1,367,701 | $12,281,955 | $20,310,360 | +$8,028,405 | +65.37% | |
| Silverberg Bernstein Capital Management Llc | 6.57% | 1,327,455 | $11,920,546 | $19,712,707 | +$7,792,161 | +65.37% | |
| American Century Companies Inc | 0.01% | 1,214,235 | $10,903,830 | $18,031,390 | +$7,127,560 | +65.37% | |
| Northern Trust Corp | 0.00% | 1,194,276 | $10,724,598 | $17,734,999 | +$7,010,401 | +65.37% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.01% | 1,180,876 | $10,604,266 | $17,536,009 | +$6,931,743 | +65.37% |
| Systematic Financial Management Lp | 0.23% | 1,137,747 | $10,216,972 | $16,895,543 | +$6,678,571 | +65.37% | |
| Renaissance Technologies LLC | Jim Simons | 0.01% | 1,052,927 | $9,455,284 | $15,635,966 | +$6,180,682 | +65.37% |
| Charles Schwab Investment Management Inc | 0.00% | 1,042,038 | $9,357,501 | $15,474,264 | +$6,116,763 | +65.37% | |
| Qube Research & Technologies Ltd | 0.01% | 945,131 | $8,487,276 | $14,035,195 | +$5,547,919 | +65.37% | |
| Alyeska Investment Group, L.P. | 0.02% | 803,805 | $7,218,169 | $11,936,504 | +$4,718,335 | +65.37% | |
| Citadel Advisors Llc | 0.01% | 800,818 | $7,191,345 | $11,892,147 | +$4,700,802 | +65.37% | |
| Herald Investment Management Ltd | 0.98% | 785,000 | $7,049,300 | $11,657,250 | +$4,607,950 | +65.37% | |
| Millennium Management Llc | 0.01% | 755,522 | $6,784,588 | $11,219,502 | +$4,434,914 | +65.37% | |
| Vanguard Fiduciary Trust Co | 0.00% | 728,451 | $6,541,490 | $10,817,497 | +$4,276,007 | +65.37% | |
| Clearline Capital Lp | 0.51% | 726,931 | $6,527,840 | $10,794,925 | +$4,267,085 | +65.37% | |
| Principal Financial Group Inc | 0.00% | 701,151 | $6,296,336 | $10,412,092 | +$4,115,756 | +65.37% | |
| Goldman Sachs Group Inc | 0.00% | 678,912 | $6,096,630 | $10,081,843 | +$3,985,213 | +65.37% | |
| Bank Of New York Mellon Corp | 0.00% | 671,482 | $6,029,908 | $9,971,508 | +$3,941,600 | +65.37% | |
| Hillsdale Investment Management Inc. | 0.16% | 670,200 | $6,018,396 | $9,952,470 | +$3,934,074 | +65.37% | |
| Needham Investment Management Llc | 0.31% | 668,000 | $5,998,640 | $9,919,800 | +$3,921,160 | +65.37% | |
| Silverback Asset Management Llc | 1.18% | 648,566 | $5,824,123 | $9,631,205 | +$3,807,082 | +65.37% | |
| Scopia Capital Management Lp | 4.02% | 643,743 | $5,780,812 | $9,559,584 | +$3,778,772 | +65.37% | |
| Jane Street Group, Llc | 0.01% | 642,273 | $5,767,611 | $9,537,754 | +$3,770,143 | +65.37% | |
| Ameriprise Financial Inc | 0.00% | 632,238 | $5,677,498 | $9,388,734 | +$3,711,236 | +65.37% | |
| State Of Wisconsin Investment Board | 0.01% | 612,931 | $5,504,120 | $9,102,025 | +$3,597,905 | +65.37% | |
| Invesco Ltd. | 0.00% | 578,689 | $5,196,627 | $8,593,532 | +$3,396,905 | +65.37% | |
| Toronado Partners, Llc | 9.57% | 565,065 | $5,074,284 | $8,391,215 | +$3,316,931 | +65.37% | |
| Aqr Capital Management Llc | 0.00% | 539,030 | $4,840,490 | $8,004,596 | +$3,164,106 | +65.37% | |
| Ubs Group Ag | 0.00% | 469,800 | $4,218,804 | $6,976,530 | +$2,757,726 | +65.37% | |
| Public Sector Pension Investment Board | 0.01% | 401,509 | $3,605,551 | $5,962,409 | +$2,356,858 | +65.37% | |
| Intech Investment Management Llc | 0.03% | 383,876 | $3,447,206 | $5,700,559 | +$2,253,353 | +65.37% | |
| Martingale Asset Management L P | 0.08% | 334,686 | $3,005,481 | $4,970,087 | +$1,964,606 | +65.37% | |
| Boothbay Fund Management, Llc | 0.07% | 329,728 | $2,960,957 | $4,896,461 | +$1,935,504 | +65.37% | |
| Rhumbline Advisers | 0.00% | 314,307 | $2,822,457 | $4,667,459 | +$1,845,002 | +65.37% | |
| Bank Of America Corp | 0.00% | 309,021 | $2,775,009 | $4,588,962 | +$1,813,953 | +65.37% | |
| Fmr Llc | 0.00% | 302,777 | $2,718,942 | $4,496,238 | +$1,777,296 | +65.37% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 290,680 | $2,610,307 | $4,316,598 | +$1,706,291 | +65.37% |
Frequently asked questions about HLIT
Who owns the most HLIT stock?
The largest holders of HLIT are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for HARMONIC INC (HLIT).
Is HLIT widely held by superinvestors?
Many widely followed stocks like HLIT appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly HLIT is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.