Latest Period
Q2 2026
Security Snapshot
ADTRAN Holdings, Inc. - Common Stock (ADTN) Institutional Ownership
CUSIP: 00486H105
13F Institutional Holders and Ownership History from Q1 2016 to Q2 2026
Institutions Reporting
247
Shares (Excl. Options)
83,865,136
Price
$13.90
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- Security type / class
- Equity / Common Stock
- Symbol
- ADTN on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 83,865,136
- Total 13F value
- $1,164,817,290
- Portfolio coverage rank
- 0%
- Share change
- +5,365,653
- Value change
- +$78,931,913
- Number of holders
- 247
- Shares outstanding
- 80,743,549
- SEC-reported price per share
- $10.45
- Insider filing price
- $10.45
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ADTN - ADTRAN Holdings, Inc. - Common Stock is tracked under CUSIP 00486H105.
- 247 institutions reported positions in Q2 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 227 to 247 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $988,051,356 to $1,164,817,290.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 247 institutions filings for Q2 2026.
Security key
00486H105
Latest holder period
Q2 2026
13F holders
247
13D/G owners
5
CIK / CUSIP context first
Open Q2 2026 holders
ADTN full holder history
ADTRAN Holdings, Inc. SEC filings
ADTRAN Holdings, Inc. company facts
ADTRAN Holdings, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 00486H105:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
ADTN
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6% | $61,249,957 | 4,868,836 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| EGORA VENTURES AG | 5% | -25% | $40,338,466 | -$13,609,978 | 4,005,806 | -25% | EGORA Ventures AG | 02 Feb 2026 |
| DnB Asset Management AS | 4.4% | $27,382,882 | 3,551,606 | DnB Asset Management AS | 31 Mar 2025 | |||
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 4.2% | $25,861,915 | 3,354,334 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 31 Mar 2025 | |||
| Divisar Capital Management LLC | 4% | -26% | $30,138,784 | -$9,532,631 | 3,213,090 | -24% | Divisar Capital Management LLC | 30 Sep 2025 |
As of 30 Jun 2026, 247 institutional investors reported holding 83,865,136 shares of ADTRAN Holdings, Inc. - Common Stock (ADTN). This represents 104% of the company’s total 80,743,549 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
69%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 9.7% | 7,836,196 | -0.05% | 0% | $108,923,125 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.4% | 5,135,649 | +7.6% | 0% | $71,385,521 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4.3% | 3,510,271 | +2.5% | 0% | $48,792,767 |
| STATE STREET CORP | 3.8% | 3,082,794 | +31% | 0% | $42,850,837 |
| ROYCE & ASSOCIATES LP | 3.7% | 2,972,917 | -4.9% | 0.33% | $41,323,546 |
| UBS Group AG | 3.6% | 2,940,724 | +1080% | 0.01% | $40,876,064 |
| TWO SIGMA INVESTMENTS, LP | 3.6% | 2,896,353 | +158% | 0.03% | $40,259,307 |
| MILLENNIUM MANAGEMENT LLC | 3.4% | 2,722,820 | +44% | 0.03% | $37,847,198 |
| JPMORGAN CHASE & CO | 3.2% | 2,623,057 | +73% | 0% | $36,067,035 |
| DNB Asset Management AS | 3.2% | 2,619,389 | -16% | 0.1% | $36,409,507 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.4% | 1,958,052 | +7.6% | 0% | $27,222,874 |
| MORGAN STANLEY | 2.2% | 1,792,752 | -2.2% | 0% | $24,919,258 |
| RENAISSANCE TECHNOLOGIES LLC | 2.2% | 1,773,740 | +774% | 0.03% | $24,654,986 |
| Boston Partners | 2% | 1,651,038 | +40% | 0.02% | $22,721,824 |
| Qube Research & Technologies Ltd | 1.7% | 1,398,913 | +418% | 0.02% | $19,444,891 |
| DIMENSIONAL FUND ADVISORS LP | 1.7% | 1,366,243 | +2.2% | 0% | $18,989,752 |
| First Eagle Investment Management, LLC | 1.5% | 1,248,507 | -8.8% | 0.03% | $17,354,247 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.4% | 1,099,019 | -45% | 0.05% | $15,276,364 |
| D. E. Shaw & Co., Inc. | 1.4% | 1,091,898 | -10% | 0.01% | $15,177,383 |
| GOLDMAN SACHS GROUP INC | 1.3% | 1,045,037 | +7.7% | 0% | $14,526,015 |
| MARSHALL WACE, LLP | 1.3% | 1,038,292 | +16% | 0.01% | $14,432,262 |
| FMR LLC | 1.3% | 1,011,195 | +64% | 0% | $14,055,605 |
| Assenagon Asset Management S.A. | 1.1% | 917,754 | +100% | 0.02% | $12,756,781 |
| Divisar Capital Management LLC | 1.1% | 851,526 | -52% | 2.7% | $11,836,211 |
| FEDERATED HERMES, INC. | 1.1% | 849,967 | -7.9% | 0.02% | $11,814,541 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
41
Latest
Q2 2026
Rows shown
1-25 of 41
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 83,865,136 | $1,164,817,290 | +$78,931,913 | $13.90 | 247 |
| 2026 Q1 | 78,587,678 | $988,051,356 | +$111,432,521 | $12.58 | 227 |
| 2025 Q4 | 70,352,679 | $611,538,309 | +$27,067,906 | $8.69 | 214 |
| 2025 Q3 | 67,395,311 | $632,170,670 | +$73,019,753 | $9.38 | 219 |
| 2025 Q2 | 59,497,253 | $533,686,663 | +$9,414,153 | $8.97 | 192 |
| 2025 Q1 | 58,522,511 | $510,321,126 | -$28,852,601 | $8.72 | 204 |
| 2024 Q4 | 61,596,351 | $513,093,123 | +$19,032,311 | $8.33 | 157 |
| 2024 Q3 | 58,965,958 | $349,632,043 | -$5,837,235 | $5.93 | 149 |
| 2024 Q2 | 59,970,719 | $315,391,967 | -$19,892,933 | $5.26 | 156 |
| 2024 Q1 | 63,682,349 | $346,190,573 | -$270,296 | $5.44 | 166 |
| 2023 Q4 | 62,894,503 | $461,974,644 | -$8,184,997 | $7.34 | 168 |
| 2023 Q3 | 63,552,312 | $523,087,079 | -$14,687,244 | $8.23 | 164 |
| 2023 Q2 | 64,342,704 | $677,558,122 | -$26,182,923 | $10.53 | 159 |
| 2023 Q1 | 63,196,076 | $1,002,082,503 | -$1,663,078 | $15.86 | 172 |
| 2022 Q4 | 63,601,968 | $1,194,292,898 | +$47,348,414 | $18.79 | 177 |
| 2022 Q3 | 61,173,817 | $1,197,841,121 | +$1,169,038,375 | $19.58 | 180 |
| 2022 Q2 | 1,377,834 | $24,255,835 | +$24,246,702 | $17.53 | 10 |
| 2022 Q1 | 521 | $9,612 | +$240 | $18.45 | 1 |
| 2021 Q4 | 508 | $11,598 | +$251 | $22.83 | 1 |
| 2021 Q3 | 497 | $9,324 | $18.76 | 1 | |
| 2021 Q2 | 497 | $10,263 | $20.65 | 1 | |
| 2021 Q1 | 497 | $8,290 | $16.68 | 1 | |
| 2020 Q4 | 497 | $7,341 | $14.77 | 1 | |
| 2020 Q3 | 497 | $5,097 | $10.26 | 1 | |
| 2020 Q2 | 497 | $5,432 | +$5,432 | $10.93 | 1 |