ADTRAN Holdings, Inc. (ADTN) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

85,516,667Shares Outstanding

1,202,157Shares held by institutions

$12,201,894Value of institutional holdings

80.13%Institutional ownership %

9.70%Shares Changed QoQ

205No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Recent 13F filings as of December 2025 show that 205 institutional investors hold a position in ADTRAN Holdings, Inc. (NASDAQ:ADTN).

Institutional ownership in ADTRAN Holdings edged up to 80.1% in December 2025, compared to 77.9% in September 2025.
The company experienced a 9.70% quarterly change in institutional shares held, alongside an increase of 26.54% in total owners annually.
The latest 13F cycle for ADTRAN Holdings reveals that of 205 total investors, 92 funds grew their exposure, whereas 78 reduced theirs and 35 made no changes.
This class of investors increased its holdings in ADTRAN Holdings to 68.53Mn shares for the 13F-cycle ending December 2025, up by 6.06Mn shares quarter on quarter, and up 7.96Mn shares year over year.
VANGUARD GROUP INC continues to be the largest institutional holder of ADTRAN Holdings as of December 31, 2025, with a position of 8.19Mn shares, representing 9.58% of the company's outstanding stock.
Among the most significant buyers of ADTRAN Holdings during December 2025 were MILLENNIUM MANAGEMENT LLC (2.12Mn), PARADIGM CAPITAL MANAGEMENT INC/NY (949.91K), D. E. Shaw & Co., Inc. (873.90K), NOMURA HOLDINGS INC (681.35K), SG Americas Securities, LLC (655.06K).
Leading sellers of ADTRAN Holdings stock in December 2025 included CITADEL ADVISORS LLC (1.12Mn), Alyeska Investment Group, L.P. (538.57K), Granahan Investment Management, LLC (527.65K), JPMORGAN CHASE & CO (378.18K), SUSQUEHANNA INTERNATIONAL GROUP, LLP (327.16K).
The top 10 institutional holders of ADTRAN Holdings for the quarter ending December 2025 included VANGUARD GROUP INC (8.19Mn), BlackRock, Inc. (8.13Mn), DnB Asset Management AS (3.12Mn), Divisar Capital Management LLC (2.99Mn), MILLENNIUM MANAGEMENT LLC (2.69Mn), ROYCE & ASSOCIATES LP (2.60Mn), WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (2.48Mn), STATE STREET CORP (1.99Mn), GEODE CAPITAL MANAGEMENT, LLC (1.77Mn), NEEDHAM INVESTMENT MANAGEMENT LLC (1.45Mn).

205 Institutional Holders

1,202,157 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	8,188,496	-194,809	-2.32%	$71,158,031.00
BlackRock, Inc.	31 Dec, 2025	8,125,259	-148,065	-1.79%	$70,608,500.00
DnB Asset Management AS	31 Dec, 2025	3,123,679	219,810	7.57%	$27,144,771.00
Divisar Capital Management LLC	31 Dec, 2025	2,986,302	-226,788	-7.06%	$25,950,964.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	2,694,800	2,122,844	371.16%	$23,417,812.00
ROYCE & ASSOCIATES LP	31 Dec, 2025	2,597,013	186,238	7.73%	$22,568,043.00
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	31 Dec, 2025	2,478,621	-257,809	-9.42%	$21,539,216.00
STATE STREET CORP	31 Dec, 2025	1,985,890	86,382	4.55%	$17,257,384.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,766,102	-4,084	-0.23%	$15,350,058.00
NEEDHAM INVESTMENT MANAGEMENT LLC	31 Dec, 2025	1,447,500	272,500	23.19%	$12,578,775.00
MORGAN STANLEY	31 Dec, 2025	1,343,547	550,010	69.31%	$11,675,438.00
First Eagle Investment Management, LLC	31 Dec, 2025	1,235,207	26,000	2.15%	$10,733,949.00
D. E. Shaw & Co., Inc.	31 Dec, 2025	1,198,773	873,904	269.00%	$10,417,337.00
PARADIGM CAPITAL MANAGEMENT INC/NY	31 Dec, 2025	1,129,909	949,909	527.73%	$9,818,909.00
Assenagon Asset Management S.A.	31 Dec, 2025	1,129,047	196,367	21.05%	$9,811,418.00
BARCLAYS PLC	31 Dec, 2025	1,125,703	319,364	39.61%	$9,782,359.00
Ophir Asset Management Pty Ltd	31 Dec, 2025	1,069,420	-135,329	-11.23%	$9,293,260.00
TUDOR INVESTMENT CORP ET AL	31 Dec, 2025	947,508	50,393	5.62%	$8,233,845.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	888,180	457,143	106.06%	$7,719,379.00
FEDERATED HERMES, INC.	31 Dec, 2025	866,431	93,577	12.11%	$7,529,285.00

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