Adtran Holdings, Inc.: which funds bought and sold
Institutions that bought and sold Adtran Holdings shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 144 institutions that filed 13F reports for both quarters added to or opened positions in Adtran Holdings, and 101 cut or closed them. Together they added a net 6.7M shares, +8.5% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 4.2M shares (+17.9%); index fund managers were net buyers of 1.5M shares (+6.8%). 50 opened a new position and 28 sold out entirely.
Bought, Q2 2026 144 institutions, 50 of them new holders Sold, Q2 2026 101 institutions, 28 of them sold out
Net change, all compared +6.7M shares (+8.5%)
Net change, active managers +4.2M shares (+17.9%), 23 bought, 27 sold
Buyers versus sellers
144 bought 29 101 sold
Active managers and hedge funds 23 bought · 27 sold · +4.2M
Index fund managers 8 bought · 2 sold · +1.5M
Other institutions 113 bought · 72 sold · +1.0M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| UBS Group AG | +2.7M +1080.3% | 2.9M | $40.9M |
| Two Sigma Investments, LP Hedge fund | +1.8M +157.8% | 2.9M | $40.3M |
| Renaissance Technologies LLC Hedge fund | +1.6M +774.2% | 1.8M | $24.7M |
| Assenagon Asset Management S.A. | +1.4M +300.8% | 1.8M | $25.5M |
| Qube Research & Technologies Ltd Hedge fund | +1.1M +418.2% | 1.4M | $19.4M |
| First Eagle Investment Management, LLC Active manager | +1.1M +82.4% | 2.5M | $34.7M |
| Jpmorgan Chase & Co | +1.1M +72.7% | 2.6M | $36.1M |
| Millennium Management LLC Hedge fund | +826K +43.6% | 2.7M | $37.8M |
| State Street Corp Index funds | +732K +31.1% | 3.1M | $42.9M |
| Hennessy Advisors Inc | +526K New position | 526K | $7.3M |
| Counterpoint Mutual Funds LLC | +497K +1519.3% | 530K | $7.4M |
| Bank Of America Corp | +478K +130.2% | 845K | $11.8M |
| Boston Partners Active manager | +470K +39.8% | 1.7M | $22.7M |
| FMR LLC Active manager | +396K +64.3% | 1.0M | $14.1M |
| Nuveen, LLC | +365K +108.9% | 700K | $9.7M |
| Vanguard Portfolio Management LLC Index funds | +364K +7.6% | 5.1M | $71.4M |
| Arrowstreet Capital, Limited Partnership Hedge fund | +331K +72.7% | 787K | $10.9M |
| Healthcare Of Ontario Pension Plan Trust Fund | +330K New position | 330K | $4.6M |
| Y-Intercept (Hong Kong) Ltd | +318K +610.8% | 370K | $5.1M |
| Balyasny Asset Management L.P. Hedge fund | +275K New position | 275K | $3.8M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Two Sigma Investments, LP Hedge fund | +1.8M +157.8% | 2.9M | $40.3M |
| Renaissance Technologies LLC Hedge fund | +1.6M +774.2% | 1.8M | $24.7M |
| Qube Research & Technologies Ltd Hedge fund | +1.1M +418.2% | 1.4M | $19.4M |
| First Eagle Investment Management, LLC Active manager | +1.1M +82.4% | 2.5M | $34.7M |
| Millennium Management LLC Hedge fund | +826K +43.6% | 2.7M | $37.8M |
| Boston Partners Active manager | +470K +39.8% | 1.7M | $22.7M |
| FMR LLC Active manager | +396K +64.3% | 1.0M | $14.1M |
| Arrowstreet Capital, Limited Partnership Hedge fund | +331K +72.7% | 787K | $10.9M |
| Balyasny Asset Management L.P. Hedge fund | +275K New position | 275K | $3.8M |
| Point72 Asset Management, L.P. Hedge fund | +200K +35.4% | 765K | $10.6M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Shannon River Fund Management LLC Hedge fund | −1.2M Sold out | 0 | — |
| SG Americas Securities, LLC | −1.1M −82.0% | 237K | $3.3M |
| Divisar Capital Management LLC | −918K −51.9% | 852K | $11.8M |
| William Blair Investment Management, LLC Active manager | −891K −44.8% | 1.1M | $15.3M |
| Needham Investment Management LLC | −779K −63.4% | 450K | $6.3M |
| Invesco Ltd. | −754K −76.1% | 237K | $3.3M |
| Paradigm Capital Management Inc | −733K Sold out | 0 | — |
| Sei Investments Co | −702K −63.5% | 403K | $5.6M |
| DNB Asset Management As | −504K −16.1% | 2.6M | $36.4M |
| Kerrisdale Advisers, LLC | −481K −87.2% | 71K | $980,214 |
| Tieton Capital Management, LLC | −465K −44.9% | 571K | $7.9M |
| Barclays PLC | −449K −48.3% | 479K | $6.7M |
| Jacobs Levy Equity Management, Inc Active manager | −404K −87.4% | 58K | $807,117 |
| White Pine Capital LLC | −377K −57.5% | 279K | $3.9M |
| Citadel Advisors LLC Hedge fund | −364K −92.5% | 30K | $411,704 |
| Westerly Capital Management, LLC | −300K −37.5% | 500K | $7M |
| Cramer Rosenthal Mcglynn LLC | −287K Sold out | 0 | — |
| Squarepoint Ops LLC Hedge fund | −271K −30.5% | 617K | $8.6M |
| Manatuck Hill Partners, LLC | −250K Sold out | 0 | — |
| Exoduspoint Capital Management, LP Hedge fund | −235K −90.3% | 25K | $350,850 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Shannon River Fund Management LLC Hedge fund | −1.2M Sold out | 0 | — |
| William Blair Investment Management, LLC Active manager | −891K −44.8% | 1.1M | $15.3M |
| Jacobs Levy Equity Management, Inc Active manager | −404K −87.4% | 58K | $807,117 |
| Citadel Advisors LLC Hedge fund | −364K −92.5% | 30K | $411,704 |
| Squarepoint Ops LLC Hedge fund | −271K −30.5% | 617K | $8.6M |
| Exoduspoint Capital Management, LP Hedge fund | −235K −90.3% | 25K | $350,850 |
| Trexquant Investment LP Hedge fund | −212K −31.0% | 473K | $6.6M |
| AQR Capital Management LLC Hedge fund | −173K −20.4% | 671K | $9.3M |
| Royce & Associates LP Active manager | −154K −4.9% | 3.0M | $41.3M |
| D. E. Shaw & Co., Inc. Hedge fund | −127K −10.4% | 1.1M | $15.2M |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Hennessy Advisors Inc | 526K | $7.3M |
| Healthcare Of Ontario Pension Plan Trust Fund | 330K | $4.6M |
| Balyasny Asset Management L.P.Hedge fund | 275K | $3.8M |
| Gratia Capital, LLC | 250K | $3.5M |
| Janney Montgomery Scott LLC | 230K | $3.2M |
| Nfj Investment Group, LLC | 208K | $2.9M |
| Empowered Funds, LLC | 185K | $2.6M |
| Lazard Asset Management LLCActive manager | 177K | $2.5M |
| Bienville Capital Management, LLC | 127K | $1.8M |
| Titan Global Capital Management Usa LLC | 123K | $1.7M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Shannon River Fund Management LLCHedge fund | 1.2M | $15.3M |
| Paradigm Capital Management Inc | 733K | $9.2M |
| Cramer Rosenthal Mcglynn LLC | 287K | $3.6M |
| Manatuck Hill Partners, LLC | 250K | $3.1M |
| Landscape Capital Management, L.L.C. | 128K | $1.6M |
| Divisadero Street Capital Management, LP | 122K | $1.5M |
| Jump Financial, LLC | 106K | $1.3M |
| Nierenberg Investment Management Company, LLC | 93K | $1.2M |
| Hightower Advisors, LLC | 93K | $1.2M |
| Susquehanna Portfolio Strategies, LLC | 66K | $825,739 |
Who holds the shares
- Institutions reporting
- 248
- Ten largest holders
- 42.2% of 13F-reported shares
- Index fund managers
- 27.4% of 13F-reported shares
- Active managers and hedge funds
- 31.8% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 23 | 27 | 5 | 7 | +4.2M | +17.9% |
| Index fund managers | 8 | 2 | 0 | 0 | +1.5M | +6.8% |
| Other institutions | 113 | 72 | 45 | 21 | +1.0M | +3.1% |