Company · Ownership research

ADTRAN Holdings, Inc. ADTN

CIK 0000926282 · CUSIP 00486H105

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 00486H105 (ADTN), not CUSIP 00486H905 (ADTN), CUSIP 00486H955 (ADTN), CUSIP 00738A106 (ADTN), and does not merge CUSIPs.

This page lists the top 20 of 159 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 1364742 · View history	$34.73M 6,603,046 shares	0.00%	-5.91M(-47.20%)Reduced	SEC filing ↗ Aug 13, 2024	▾
02	VANGUARD GROUP INC CIK 102909 · View history	$31.89M 6,062,697 shares	0.00%	-490.49K(-7.50%)Reduced	SEC filing ↗ Aug 13, 2024	▾
03	Divisar Capital Management LLC CIK 1645721 · View history	$30.19M 5,740,461 shares	5.72%	+1.15M(+25.00%)Added	SEC filing ↗ Aug 14, 2024	▾
04	DNB Asset Management AS CIK 1456670 · View history	$24.36M 4,631,848 shares	0.12%	+1.16M(+33.40%)Added	SEC filing ↗ Jul 5, 2024	▾
05	WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC CIK 1644956 · View history	$23.34M 4,437,187 shares	0.06%	-18.88K(-0.40%)Reduced	SEC filing ↗ Aug 8, 2024	▾
06	PARADIGM CAPITAL MANAGEMENT INC/NY CIK 1037792 · View history	$12.87M 2,447,100 shares	0.59%	+1.55M(+173.10%)Added	SEC filing ↗ Aug 14, 2024	▾
07	MORGAN STANLEY CIK 895421 · Amended · View history	$11.23M 2,135,321 shares	0.00%	+817.20K(+62.00%)Added	SEC filing ↗ May 14, 2025	▾
08	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$9.19M 1,746,152 shares	0.00%	+27.09K(+1.60%)Added	SEC filing ↗ Aug 9, 2024	▾
09	CITADEL ADVISORS LLC CIK 1423053 · View history	$9.14M 1,737,509 shares	0.01%	+1.15M(+196.60%)Added	SEC filing ↗ Aug 14, 2024	▾
10	STATE STREET CORP CIK 93751 · View history	$9.04M 1,719,360 shares	0.00%	-1.29M(-42.80%)Reduced	SEC filing ↗ Aug 14, 2024	▾
11	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$8.15M 1,549,621 shares	0.01%	+1.53M(+8,824.30%)Added	SEC filing ↗ Aug 14, 2024	▾
12	NEEDHAM INVESTMENT MANAGEMENT LLC CIK 1167212 · View history	$7.42M 1,410,000 shares	0.61%	+245.00K(+21.00%)Added	SEC filing ↗ Aug 14, 2024	▾
13	CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · Amended · View history	$5.35M 1,016,458 shares	0.00%	-123.80K(-10.90%)Reduced	SEC filing ↗ Aug 12, 2024	▾
14	Tieton Capital Management, LLC CIK 1381954 · View history	$5.09M 967,884 shares	2.83%	+1.51K(+0.20%)Added	SEC filing ↗ Aug 9, 2024	▾
15	Bank of New York Mellon Corp CIK 1390777 · View history	$4.71M 894,626 shares	0.00%	-349.65K(-28.10%)Reduced	SEC filing ↗ Jul 25, 2024	▾
16	FEDERATED HERMES, INC. CIK 1056288 · View history	$4.69M 891,710 shares	0.01%	-918.98K(-50.80%)Reduced	SEC filing ↗ Aug 8, 2024	▾
17	JANE STREET GROUP, LLC CIK 1595888 · View history	$4.55M 865,927 shares	0.00%	+747.08K(+628.60%)Added	SEC filing ↗ Aug 15, 2024	▾
18	First Eagle Investment Management, LLC CIK 1325447 · View history	$3.59M 681,807 shares	0.01%	+275.50K(+67.80%)Added	SEC filing ↗ Aug 12, 2024	▾
19	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$3.58M 680,340 shares	0.01%	+142.10K(+26.40%)Added	SEC filing ↗ Aug 9, 2024	▾
20	NORTHERN TRUST CORP CIK 73124 · View history	$3.49M 663,204 shares	0.00%	-118.21K(-15.10%)Reduced	SEC filing ↗ Aug 14, 2024	▾

Showing 20 / 159 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

159

Cancelled or null records excluded

Disclosed shares

60,022,343

Not deduplicated across managers

Disclosed value

$315.66M

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.

ADTRAN Holdings, Inc. · Q2 2024

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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.