Company · Ownership research

HARMONIC INC. HLIT

CIK 0000851310 · CUSIP 413160102

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 413160102 (HLIT), not CUSIP 413160902 (HLIT), CUSIP 413160952 (HLIT), and does not merge CUSIPs.

This page lists the top 20 of 259 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock, Inc. CIK 2012383 · View history	$294.01M 18,004,412 shares	0.00%	-1.16M(-6.10%)Reduced	SEC filing ↗ Aug 7, 2026	▾
02	VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · View history	$88.01M 5,389,426 shares	0.00%	-745.13K(-12.10%)Reduced	SEC filing ↗ Aug 13, 2026	▾
03	STATE STREET CORP CIK 93751 · View history	$84.06M 5,147,739 shares	0.00%	+286.79K(+5.90%)Added	SEC filing ↗ Aug 7, 2026	▾
04	PRICE T ROWE ASSOCIATES INC /MD/ CIK 80255 · View history	$78.28M 4,793,472 shares	0.01%	+4.67M(+3,648.10%)Added	SEC filing ↗ Aug 14, 2026	▾
05	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · View history	$77.90M 4,770,651 shares	0.00%	+70.30K(+1.50%)Added	SEC filing ↗ Aug 13, 2026	▾
06	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$53.76M 3,291,847 shares	0.02%	+1.10M(+49.90%)Added	SEC filing ↗ Aug 13, 2026	▾
07	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$52.51M 3,215,450 shares	0.02%	+2.00M(+164.80%)Added	SEC filing ↗ Aug 12, 2026	▾
08	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$47.66M 2,918,817 shares	0.01%	-754.58K(-20.50%)Reduced	SEC filing ↗ Aug 11, 2026	▾
09	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$46.60M 2,853,280 shares	0.00%	+59.03K(+2.10%)Added	SEC filing ↗ Aug 12, 2026	▾
10	MORGAN STANLEY CIK 895421 · View history	$34.94M 2,139,718 shares	0.00%	+452.30K(+26.80%)Added	SEC filing ↗ Aug 13, 2026	▾
11	Trigran Investments, Inc. CIK 1336800 · View history	$30.99M 1,897,838 shares	5.68%	-1.32M(-41.00%)Reduced	SEC filing ↗ Aug 12, 2026	▾
12	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$30.72M 1,881,400 shares	0.02%	-1.22M(-39.30%)Reduced	SEC filing ↗ Aug 14, 2026	▾
13	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$28.31M 1,733,447 shares	0.02%	+1.56M(+920.20%)Added	SEC filing ↗ Aug 14, 2026	▾
14	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$28.16M 1,724,427 shares	0.04%	+671.50K(+63.80%)Added	SEC filing ↗ Aug 13, 2026	▾
15	Leeward Investments, LLC - MA CIK 1923173 · View history	$27.19M 1,665,067 shares	1.24%	-34.63K(-2.00%)Reduced	SEC filing ↗ Jul 30, 2026	▾
16	First Eagle Investment Management, LLC CIK 1325447 · Amended · View history	$23.62M 1,446,133 shares	0.04%	+265.26K(+22.50%)Added	SEC filing ↗ Aug 24, 2026	▾
17	Silverberg Bernstein Capital Management LLC CIK 2007880 · View history	$21.38M 1,309,257 shares	8.19%	-18.20K(-1.40%)Reduced	SEC filing ↗ Jul 7, 2026	▾
18	NORTHERN TRUST CORP CIK 73124 · View history	$19.38M 1,186,522 shares	0.00%	-7.75K(-0.60%)Reduced	SEC filing ↗ Aug 13, 2026	▾
19	Nuveen, LLC CIK 1871926 · View history	$18.68M 1,143,896 shares	0.00%	-223.81K(-16.40%)Reduced	SEC filing ↗ Aug 11, 2026	▾
20	SYSTEMATIC FINANCIAL MANAGEMENT LP CIK 1085936 · View history	$17.97M 1,100,266 shares	0.36%	-37.48K(-3.30%)Reduced	SEC filing ↗ Aug 14, 2026	▾

Showing 20 / 259 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

259

Cancelled or null records excluded

Disclosed shares

93,387,369

Not deduplicated across managers

Disclosed value

$1.52B

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

HARMONIC INC. · Q2 2026

Explore all 259 reporting institutions.

This page includes 20 of 259 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.