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 262 rows by value; the complete set is available through the API.

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	$190.33M 19,244,753 shares	0.00%	-74.79K(-0.40%)Reduced	SEC filing ↗ Feb 12, 2026	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$118.91M 12,022,963 shares	0.00%	+148.28K(+1.20%)Added	SEC filing ↗ Jan 29, 2026	▾
03	STATE STREET CORP CIK 93751 · View history	$44.22M 4,471,187 shares	0.00%	+80.79K(+1.80%)Added	SEC filing ↗ Feb 13, 2026	▾
04	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$34.47M 3,485,105 shares	0.01%	+24.06K(+0.70%)Added	SEC filing ↗ Feb 12, 2026	▾
05	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$33.63M 3,400,475 shares	0.03%	+304.65K(+9.80%)Added	SEC filing ↗ Feb 17, 2026	▾
06	Trigran Investments, Inc. CIK 1336800 · View history	$31.86M 3,221,401 shares	6.28%	0(0.00%)Unchanged	SEC filing ↗ Feb 13, 2026	▾
07	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$27.06M 2,735,649 shares	0.00%	-72.85K(-2.60%)Reduced	SEC filing ↗ Feb 9, 2026	▾
08	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$24.38M 2,465,593 shares	0.02%	-197.55K(-7.40%)Reduced	SEC filing ↗ Feb 17, 2026	▾
09	ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history	$23.73M 2,399,636 shares	0.01%	-7.31K(-0.30%)Reduced	SEC filing ↗ Feb 17, 2026	▾
10	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$21.19M 2,142,312 shares	0.01%	+1.16M(+118.50%)Added	SEC filing ↗ Feb 13, 2026	▾
11	SCOPIA CAPITAL MANAGEMENT LP CIK 1279150 · View history	$18.84M 1,904,852 shares	3.99%	-657.90K(-25.70%)Reduced	SEC filing ↗ Feb 17, 2026	▾
12	MARSHALL WACE, LLP CIK 1318757 · View history	$18.22M 1,842,139 shares	0.02%	-290.49K(-13.60%)Reduced	SEC filing ↗ Feb 13, 2026	▾
13	MORGAN STANLEY CIK 895421 · Amended · View history	$17.86M 1,805,488 shares	0.00%	+89.05K(+5.20%)Added	SEC filing ↗ May 27, 2026	▾
14	Leeward Investments, LLC - MA CIK 1923173 · View history	$17.24M 1,743,158 shares	0.87%	+90.33K(+5.50%)Added	SEC filing ↗ Feb 5, 2026	▾
15	Silverberg Bernstein Capital Management LLC CIK 2007880 · View history	$12.85M 1,299,638 shares	7.42%	+52.55K(+4.20%)Added	SEC filing ↗ Jan 12, 2026	▾
16	Alyeska Investment Group, L.P. CIK 1453072 · View history	$11.95M 1,208,510 shares	0.03%	-805.29K(-40.00%)Reduced	SEC filing ↗ Feb 13, 2026	▾
17	Nuveen, LLC CIK 1871926 · View history	$11.86M 1,199,617 shares	0.00%	-176.87K(-12.80%)Reduced	SEC filing ↗ Feb 12, 2026	▾
18	NORTHERN TRUST CORP CIK 73124 · View history	$11.56M 1,168,869 shares	0.00%	-89.91K(-7.10%)Reduced	SEC filing ↗ Feb 17, 2026	▾
19	SYSTEMATIC FINANCIAL MANAGEMENT LP CIK 1085936 · View history	$11.37M 1,149,716 shares	0.27%	-16.17K(-1.40%)Reduced	SEC filing ↗ Feb 9, 2026	▾
20	Qube Research & Technologies Ltd CIK 1729829 · View history	$11.15M 1,127,261 shares	0.02%	+51.99K(+4.80%)Added	SEC filing ↗ Feb 17, 2026	▾

Showing 20 / 262 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

262

Cancelled or null records excluded

Disclosed shares

98,985,590

Not deduplicated across managers

Disclosed value

$979.14M

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. · Q4 2025

Explore all 262 reporting institutions.

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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.