Who owns ADTRAN Holdings Inc.?
Institutional ownership of ADTN from SEC Form 13F filings across 160 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
160
13F holders
$851.7M
value, 2026 filers
77.5%
of shares outstanding (62.7M sh)
28
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of ADTN's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 7.8M | $108.9M | 0.0% | 9.7% | -0.1% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 5.1M | $71.4M | 0.0% | 6.3% | +7.6% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 3.5M | $48.8M | 0.0% | 4.3% | -48.8% |
| 4 | UBS Group AG | 2.9M | $40.9M | 0.0% | 3.6% | +1080.3% |
| 5 | TWO SIGMA INVESTMENTS, LP | 2.9M | $40.3M | 0.0% | 3.6% | +157.8% |
| 6 | MILLENNIUM MANAGEMENT LLC | 2.7M | $37.8M | 0.0% | 3.4% | +43.6% |
| 7 | JPMORGAN CHASE & CO | 2.6M | $36.1M | 0.0% | 3.2% | +72.7% |
| 8 | DNB Asset Management AS | 2.6M | $36.4M | 0.1% | 3.2% | -16.1% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 2.0M | $27.2M | 0.0% | 2.4% | +7.6% |
| 10 | MORGAN STANLEY | 1.8M | $24.9M | 0.0% | 2.2% | -2.2% |
| 11 | Qube Research & Technologies Ltd | 1.4M | $19.4M | 0.0% | 1.7% | +418.2% |
| 12 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.1M | $15.3M | 0.0% | 1.4% | -44.8% |
| 13 | D. E. Shaw & Co., Inc. | 1.1M | $15.2M | 0.0% | 1.3% | -10.4% |
| 14 | GOLDMAN SACHS GROUP INC | 1.0M | $14.5M | 0.0% | 1.3% | +7.7% |
| 15 | MARSHALL WACE, LLP | 1.0M | $14.4M | 0.0% | 1.3% | +16.5% |
| 16 | FMR LLC | 1.0M | $14.1M | 0.0% | 1.2% | +64.3% |
| 17 | Assenagon Asset Management S.A. | 917,754 | $12.8M | 0.0% | 1.1% | +100.4% |
| 18 | FEDERATED HERMES, INC. | 849,967 | $11.8M | 0.0% | 1% | -7.9% |
| 19 | BANK OF AMERICA CORP /DE/ | 845,421 | $11.8M | 0.0% | 1% | +130.2% |
| 20 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 786,873 | $10.9M | 0.0% | 1% | +72.7% |
| 21 | Point72 Asset Management, L.P. | 764,780 | $10.6M | 0.0% | 0.9% | +35.4% |
| 22 | NORTHERN TRUST CORP | 734,960 | $10.2M | 0.0% | 0.9% | +11.5% |
| 23 | Sixth Street Partners Management Company, L.P.NEW | 714,068 | $9.9M | 1.7% | 0.9% | new |
| 24 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 714,068 | $9.9M | 0.0% | 0.9% | +14.4% |
| 25 | Nuveen, LLC | 700,147 | $9.7M | 0.0% | 0.9% | +108.9% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.