Adtran Holdings, Inc. 13F holders
250 funds reported a position in Adtran Holdings, Inc. in their 13F for the quarter ended 30 June 2026, together 86.2 million shares worth $1.20 billion. Against the quarter before, 48 opened a position, 91 added, 73 trimmed and 28 sold out; together they bought a net 4.2 million shares. The largest holders: BlackRock, Inc., Vanguard Portfolio Management LLC and Vanguard Capital Management LLC.
Funds holding250+22 on Q1 2026
Shares they held86.2Mworth $1.20 billion
Net bought on the quarter4.2M sharesabout $58.5 million at the funds' values
Funds buying to selling139 to 101opened or added, to cut or sold
Opened 48Added 91Held 37Trimmed 73Sold out 28
What each fund did in ADTN against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in ADTN in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,241 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 32 reported a position in Adtran Holdings, Inc.: 4 opened one, 12 added, 12 trimmed and 7 sold out, a net 2.9 million shares sold.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 8 reported a position in Adtran Holdings, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Two Sigma Investments, 2.9 million shares worth $40.3 million, 0.0% of its reported book. In the quarter, 6 funds added or opened a position and 1 trimmed or sold out; together they bought a net 4.5 million shares, about $63.1 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Two Sigma Investments | 2,896,353 | $40.3 million | 0.0% | +1,772,829 | added | 30 June 2026 | 13F |
| Millennium Management | 2,722,820 | $37.8 million | 0.0% | +826,409 | added | 30 June 2026 | 13F |
| Geode Capital Management | 1,958,052 | $27.2 million | 0.0% | +138,929 | added | 30 June 2026 | 13F |
| Renaissance Technologies | 1,773,740 | $24.7 million | 0.0% | +1,570,841 | added | 30 June 2026 | 13F |
| FMR LLC | 1,011,195 | $14.1 million | 0.0% | +395,759 | added | 30 June 2026 | 13F |
| Point72 Asset Management | 764,780 | $10.6 million | 0.0% | +200,000 | added | 30 June 2026 | 13F |
| Norges Bank | 575,400 | $8.0 million | 0.0% | held | 30 June 2026 | 13F | |
| Citadel Advisors | 29,619 | $411,704 | 0.0% | -364,115 | trimmed | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 7,836,196 | 9.09% | $108.9 million | 0.00% | -4,058 | 13F |
| Vanguard Portfolio Management LLC | 5,135,649 | 5.96% | $71.4 million | 0.00% | +364,197 | 13F |
| Vanguard Capital Management LLC | 3,510,271 | 4.07% | $48.8 million | 0.00% | +84,041 | 13F |
| State Street Corp. | 3,082,794 | 3.58% | $42.9 million | 0.00% | +732,057 | 13F |
| Royce & Associates LP | 2,972,917 | 3.45% | $41.3 million | 0.33% | -154,486 | 13F |
| UBS Group AG | 2,940,724 | 3.41% | $40.9 million | 0.01% | +2,691,567 | 13F |
| Two Sigma Investments, LP | 2,896,353 | 3.36% | $40.3 million | 0.03% | +1,772,829 | 13F |
| Millennium Management LLC | 2,722,820 | 3.16% | $37.8 million | 0.03% | +826,409 | 13F |
| DNB Asset Management AS | 2,619,389 | 3.04% | $36.4 million | 0.10% | -504,290 | 13F |
| JPMorgan Chase & Co. | 2,623,057 | 3.04% | $36.1 million | 0.00% | +1,104,360 | 13F |
| First Eagle Investment Management, LLC | 2,497,014 | 2.90% | $34.7 million | 0.03% | 13F | |
| Geode Capital Management, LLC | 1,958,052 | 2.27% | $27.2 million | 0.00% | +138,929 | 13F |
| Assenagon Asset Management S.A. | 1,835,508 | 2.13% | $25.5 million | 0.02% | 13F | |
| Morgan Stanley | 1,792,752 | 2.08% | $24.9 million | 0.00% | -40,120 | 13F |
| Renaissance Technologies LLC | 1,773,740 | 2.06% | $24.7 million | 0.03% | +1,570,841 | 13F |
| Boston Partners | 1,651,038 | 1.91% | $22.7 million | 0.02% | +469,724 | 13F |
| Qube Research & Technologies Ltd | 1,398,913 | 1.62% | $19.4 million | 0.02% | +1,128,968 | 13F |
| Dimensional Fund Advisors LP | 1,366,243 | 1.58% | $19.0 million | 0.00% | +29,215 | 13F |
| William Blair Investment Management, LLC | 1,099,019 | 1.27% | $15.3 million | 0.05% | -890,511 | 13F |
| D. E. Shaw & Co., Inc. | 1,091,898 | 1.27% | $15.2 million | 0.01% | -127,071 | 13F |
| Goldman Sachs Group Inc. | 1,045,037 | 1.21% | $14.5 million | 0.00% | +74,330 | 13F |
| Marshall Wace, LLP | 1,038,292 | 1.20% | $14.4 million | 0.01% | +146,772 | 13F |
| FMR LLC | 1,011,195 | 1.17% | $14.1 million | 0.00% | +395,759 | 13F |
| Divisar Capital Management LLC | 851,526 | 0.99% | $11.8 million | 2.73% | -917,913 | 13F |
| Federated Hermes, Inc. | 849,967 | 0.99% | $11.8 million | 0.02% | -72,649 | 13F |
| Bank of America Corp. | 845,421 | 0.98% | $11.8 million | 0.00% | +478,195 | 13F |
| Arrowstreet Capital, Limited Partnership | 786,873 | 0.91% | $10.9 million | 0.01% | +331,226 | 13F |
| Point72 Asset Management, L.P. | 764,780 | 0.89% | $10.6 million | 0.02% | +200,000 | 13F |
| Heartland Advisors Inc. | 750,000 | 0.87% | $10.4 million | 0.46% | no change | 13F |
| Northern Trust Corp. | 734,960 | 0.85% | $10.2 million | 0.00% | +75,712 | 13F |
| Charles Schwab Investment Management Inc. | 714,068 | 0.83% | $9.9 million | 0.00% | +89,956 | 13F |
| Nuveen, LLC | 700,147 | 0.81% | $9.7 million | 0.00% | +364,958 | 13F |
| Kovack Advisors, Inc. | 696,210 | 0.81% | $9.5 million | 0.46% | -39,790 | 13F |
| AQR Capital Management LLC | 671,403 | 0.78% | $9.3 million | 0.00% | -172,521 | 13F |
| Connor, Clark & Lunn Investment Management Ltd. | 629,119 | 0.73% | $8.7 million | 0.02% | +68,771 | 13F |
| Wells Fargo & Company | 625,245 | 0.73% | $8.7 million | 0.00% | +246,673 | 13F |
| Squarepoint Ops LLC | 617,388 | 0.72% | $8.6 million | 0.02% | -270,574 | 13F |
| Norges Bank | 575,400 | 0.67% | $8.0 million | 0.00% | 13F | |
| 1492 Capital Management LLC | 573,128 | 0.66% | $8.0 million | 2.35% | -51,896 | 13F |
| Tieton Capital Management, LLC | 570,542 | 0.66% | $7.9 million | 2.28% | -464,625 | 13F |
| HRT Financial LP | 561,192 | 0.65% | $7.8 million | 0.01% | -6,934 | 13F |
| Tudor Investment Corp. Et Al | 541,455 | 0.63% | $7.5 million | 0.03% | -113,488 | 13F |
| Vanguard Fiduciary Trust Co. | 540,877 | 0.63% | $7.5 million | 0.00% | +18,347 | 13F |
| Counterpoint Mutual Funds LLC | 529,866 | 0.61% | $7.4 million | 0.73% | +497,145 | 13F |
| Hennessy Advisors Inc. | 526,300 | 0.61% | $7.3 million | 0.23% | new | 13F |
| Royal Bank of Canada | 504,227 | 0.58% | $7.0 million | 0.00% | +46,825 | 13F |
| Nomura Holdings Inc. | 502,322 | 0.58% | $7.0 million | 0.03% | +38,146 | 13F |
| Westerly Capital Management, LLC | 500,000 | 0.58% | $7.0 million | 1.28% | -300,000 | 13F |
| Barclays PLC | 479,197 | 0.56% | $6.7 million | 0.00% | -448,578 | 13F |
| Trexquant Investment LP | 472,733 | 0.55% | $6.6 million | 0.04% | -212,176 | 13F |
The 50 largest of the 250 funds that reported a position in ADTN in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on ADTN
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 148,300 | $2.1 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 58,800 | $817,320 | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 28 April 2026 | 13G | Vanguard Portfolio Management and 1 other | 4.9 million | 6.0% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 18 March 2026 | 13G/A | EGORA Ventures AG and 1 other | 4.0 million | 5.0% | 2 February 2026 | passive, under 20% (13d-1(c)) | EDGAR |
| 14 November 2025 | 13G/A | Divisar Capital Management LLC and 3 others | 3.2 million | 4.0% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 30 September 2026 | 3,054 | $6.87 | SEC |
| 23 September 2026 | 16 | $7.29 | SEC |
| 22 September 2026 | 416 | $7.21 | SEC |
| 17 September 2026 | 3,579 | $7.09 | SEC |
| 3 September 2026 | 18,017 | $7.52 | SEC |
| 31 August 2026 | 29,676 | $7.72 | SEC |
| 26 August 2026 | 8,467 | $8.02 | SEC |
| 24 August 2026 | 3,541 | $7.77 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.