Harmonic Inc. (HLIT) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

77,756,989Shares Outstanding

1,160,008Shares held by institutions

$12,388,885Value of institutional holdings

98.10%Institutional ownership %

-9.13%Shares Changed QoQ

139No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of December 2025 show that 183 institutional investors hold a position in Harmonic Inc. (NASDAQ:HLIT).

The collective stake of institutional investors in Harmonic moved to 65.0% in December 2025, a shift down from the 84.6% reported for September 2025.
On a quarter-over-quarter basis, institutional holdings shifted by 2.85%, with a year-over-year a decrease of 20.09% in the count of filers.
During the quarter, 100 institutions bought more Harmonic shares, 59 sold shares, and 24 of the 183 total investors held their position steady.
Collectively, institutional investors increased their stake in Harmonic to 76.85Mn shares as of December 2025, a change that is up by 2.13Mn shares quarter on quarter and down 33.59Mn shares year over year.
BlackRock, Inc. continues to be the largest institutional holder of Harmonic as of December 31, 2025, with a position of 19.24Mn shares, representing 16.29% of the company's outstanding stock.
Among the most significant buyers of Harmonic during December 2025 were ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (1.16Mn), Walleye Capital LLC (726.23K), AMERICAN CENTURY COMPANIES INC (337.06K), MARTINGALE ASSET MANAGEMENT L P (262.12K), JACOBS LEVY EQUITY MANAGEMENT, INC (244.12K).
Leading sellers of Harmonic stock in December 2025 included Alyeska Investment Group, L.P. (805.29K), Neuberger Berman Group LLC (431.50K), MARSHALL WACE, LLP (290.49K), Inspire Advisors, LLC (217.38K), Toronado Partners, LLC (195.90K).
The top 10 institutional holders of Harmonic for the quarter ending December 2025 included BlackRock, Inc. (19.24Mn), VANGUARD GROUP INC (12.02Mn), STATE STREET CORP (4.47Mn), DIMENSIONAL FUND ADVISORS LP (3.49Mn), Trigran Investments, Inc. (3.22Mn), GEODE CAPITAL MANAGEMENT, LLC (2.74Mn), ARROWSTREET CAPITAL, LIMITED PARTNERSHIP (2.14Mn), MARSHALL WACE, LLP (1.84Mn), MORGAN STANLEY (1.81Mn), Leeward Investments, LLC - MA (1.74Mn).

183 Institutional Holders

1,160,008 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	19,244,753	-74,792	-0.39%	$190,330,608.00
VANGUARD GROUP INC	31 Dec, 2025	12,022,963	148,281	1.25%	$118,907,103.00
STATE STREET CORP	31 Dec, 2025	4,471,187	80,791	1.84%	$44,220,039.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	3,485,105	24,062	0.70%	$34,467,991.00
Trigran Investments, Inc.	31 Dec, 2025	3,221,401	0	0.00%	$31,859,656.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	2,735,649	-72,847	-2.59%	$27,060,630.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	2,142,312	1,161,828	118.50%	$21,187,466.00
MARSHALL WACE, LLP	31 Dec, 2025	1,842,139	-290,486	-13.62%	$18,218,754.00
MORGAN STANLEY	31 Dec, 2025	1,805,488	89,053	5.19%	$17,856,288.00
Leeward Investments, LLC - MA	31 Dec, 2025	1,743,158	90,325	5.46%	$17,239,833.00
Silverberg Bernstein Capital Management LLC	31 Dec, 2025	1,299,638	52,545	4.21%	$12,853,420.00
Alyeska Investment Group, L.P.	31 Dec, 2025	1,208,510	-805,294	-39.99%	$11,952,164.00
Nuveen, LLC	31 Dec, 2025	1,199,617	-176,871	-12.85%	$11,864,212.00
SYSTEMATIC FINANCIAL MANAGEMENT LP	31 Dec, 2025	1,149,716	-16,168	-1.39%	$11,370,700.00
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	31 Dec, 2025	1,037,489	21,202	2.09%	$10,260,764.00
Toronado Partners, LLC	31 Dec, 2025	1,008,690	-195,903	-16.26%	$9,975,944.00
First Eagle Investment Management, LLC	31 Dec, 2025	849,876	31,500	3.85%	$8,405,274.00
HERALD INVESTMENT MANAGEMENT Ltd	31 Dec, 2025	785,000	0	0.00%	$7,763,650.00
GOLDMAN SACHS GROUP INC	31 Dec, 2025	764,732	-163,317	-17.60%	$7,563,199.00
Walleye Capital LLC	31 Dec, 2025	726,233	726,233	0.00%	$7,182,444.00

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