Companies / ADTRAN Holdings, Inc. / Activity
Activity — ADTRAN Holdings, Inc.
80 moves.
Top impactInsider · CEO movesInsider · biggest buysInsider · biggest sellsInstitution · biggest movesInstitution · new positions
| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Shannon River Fund Management LLC 13F manager | New | Common stock | $15.35M | +1.2M | 1,219,976 1.50% of shares | medium |
| Q2 2026 as of | State Street Corporation 13F manager | Add | Common stock | $15.25M | +1.1M +55.23% | 3,082,794 3.78% of shares | medium |
| Q1 2026 as of | Boston Partners 13F manager | New | Common stock | $14.91M | +1.2M | 1,181,314 1.45% of shares | medium |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Add | Common stock | $13.25M | +1.1M +1492.91% | 1,123,524 1.38% of shares | medium |
| Q1 2026 as of | Marshall Wace, LLP 13F manager | New | Common stock | $11.22M | +892K | 891,520 1.09% of shares | medium |
| Q1 2026 as of | Millennium Management LLC 13F manager | Trim | Common stock | $-10.04M | -798K -29.63% | 1,896,411 2.33% of shares | medium |
| Q1 2026 as of | AQR Capital Management, LLC 13F manager | Add | Common stock | $7.64M | +607K +256.22% | 843,924 1.04% of shares | medium |
| Q1 2026 as of | Hillsdale Investment Management Inc. 13F manager | Trim | Common stock | $-5.93M | -471K -95.37% | 22,900 0.03% of shares | medium |
| Q1 2026 as of | Paradigm Capital Management INC/NY 13F manager | Trim | Common stock | $-4.99M | -397K -35.11% | 733,200 0.90% of shares | low |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Trim | Common stock | $-4.02M | -289K -3.56% | 7,836,196 9.62% of shares | low |
| Q4 2025 as of | Barclays PLC 13F manager | Add | Common stock | $2.78M | +319K +39.61% | 1,125,703 1.38% of shares | low |
| Q1 2026 as of | Needham Investment Management LLC 13F manager | Trim | Common stock | $-2.76M | -219K -15.13% | 1,228,500 1.51% of shares | low |
| Q1 2026 as of | Nomura Holdings Inc 13F manager | Trim | Common stock | $-2.73M | -217K -31.87% | 464,176 0.57% of shares | low |
| Q1 2026 as of | BNP Paribas Financial Markets 13F manager | Trim | Common stock | $-2.23M | -178K -50.98% | 170,769 0.21% of shares | low |
| Q1 2026 as of | Arrowstreet Capital, Limited Partnership 13F manager | Add | Common stock | $2.15M | +171K +60.16% | 455,647 0.56% of shares | low |
| Q4 2025 as of | Counterpoint Mutual Funds LLC 13F manager | Exit | Common stock | $-2.02M | -232K -100.00% | 0 | low |
| Q3 2025 as of | Barclays PLC 13F manager | Add | Common stock | $1.99M | +212K +35.61% | 806,339 0.99% of shares | low |
| Q1 2026 as of | Walleye Trading LLC 13F manager | Add | Common stock | $1.75M | +139K +868.10% | 154,896 0.19% of shares | low |
| Q1 2026 as of | First Eagle Investment Management, LLC 13F manager | Add | Common stock | $1.68M | +134K +10.81% | 1,368,707 1.68% of shares | low |
| Q1 2025 as of | Barclays PLC 13F manager | Add | Common stock | $1.62M | +186K +68.47% | 457,933 0.56% of shares | low |
| Q2 2026 as of | Deutsche Bank AG 13F manager | Trim | Common stock | $-1.55M | -111K -32.09% | 235,833 0.29% of shares | low |
| Q4 2024 as of | Barclays PLC 13F manager | Add | Common stock | $1.30M | +156K +134.85% | 271,814 0.33% of shares | low |
| Q1 2026 as of | Hussman Strategic Advisors, Inc. 13F manager | Exit | Common stock | $-1.28M | -147K -100.00% | 0 | low |
| Q2 2025 as of | Barclays PLC 13F manager | Add | Common stock | $1.23M | +137K +29.84% | 594,593 0.73% of shares | low |
| Q1 2026 as of | AllianceBernstein L.P. 13F manager | Trim | Common stock | $-1.12M | -128K -43.31% | 167,920 0.21% of shares | low |
| Q1 2026 as of | Royal Bank of Canada 13F manager | Trim | Common stock | $-985.2K | -78K -14.62% | 457,402 0.56% of shares | low |
| Q1 2026 as of | Polen Capital Management LLC 13F manager | New | Common stock | $952.2K | +76K | 75,688 0.09% of shares | low |
| Q4 2025 as of | Bank of America Corp /De 13F manager | Trim | Common stock | $-900.6K | -104K -24.09% | 326,631 0.40% of shares | low |
| Q1 2026 as of | Balyasny Asset Management L.P. 13F manager | Exit | Common stock | $-890.8K | -103K -100.00% | 0 | low |
| Q1 2026 as of | Federated Hermes Inc 13F manager | Add | Common stock | $706.8K | +56K +6.48% | 922,616 1.13% of shares | low |
| Q1 2026 as of | Geode Capital Management, LLC 13F manager | Add | Common stock | $667.1K | +53K +3.00% | 1,819,123 2.23% of shares | low |
| Q4 2023 as of | Barclays PLC 13F manager | Add | Common stock | $635.7K | +87K +93.48% | 179,243 0.22% of shares | low |
| Q2 2026 as of | Victory Capital Management, Inc. 13F manager | Trim | Common stock | $-623.4K | -45K -36.29% | 78,750 0.10% of shares | low |
| Q1 2026 as of | Renaissance Technologies LLC 13F manager | Trim | Common stock | $-615.7K | -49K -19.43% | 202,899 0.25% of shares | low |
| Q1 2026 as of | Graham Capital Management, L.P. 13F manager | Exit | Common stock | $-588.1K | -68K -100.00% | 0 | low |
| Q1 2026 as of | White Pine Capital LLC 13F manager | Trim | Common stock | $-580.3K | -46K -13.55% | 294,369 0.36% of shares | low |
| Q2 2026 as of | Lido Advisors, LLC 13F manager | Add | Common stock | $536.2K | +39K +42.50% | 129,355 0.16% of shares | low |
| Q2 2026 as of | Versor Investments LP 13F manager | Exit | Common stock | $-526.6K | -61K -100.00% | 0 | low |
| Q1 2026 as of | Zurcher Kantonalbank (Zurich Cantonalbank) 13F manager | Add | Common stock | $427.7K | +34K +181.22% | 52,756 0.06% of shares | low |
| Q1 2024 as of | Barclays PLC 13F manager | Trim | Common stock | $-412.3K | -76K -42.29% | 103,445 0.13% of shares | low |
| Q1 2026 as of | Mariner, LLC 13F manager | New | Common stock | $408.9K | +33K | 32,510 0.04% of shares | low |
| Q1 2026 as of | Lazard Asset Management LLC 13F manager | Exit | Common stock | $-393.1K | -45K -100.00% | 0 | low |
| Q1 2026 as of | Los Angeles Capital Management LLC 13F manager | Trim | Common stock | $-368.7K | -29K -98.74% | 374 <0.01% of shares | low |
| Q3 2023 as of | Barclays PLC 13F manager | Add | Common stock | $357.7K | +43K +88.37% | 92,640 0.11% of shares | low |
| Q1 2026 as of | Granahan Investment Management, LLC 13F manager | Trim | Common stock | $-302.6K | -24K -43.87% | 30,782 0.04% of shares | low |
| Q3 2025 as of | Virtus Advisers, LLC 13F manager | New | Common stock | $296.1K | +32K | 31,571 0.04% of shares | low |
| Q1 2026 as of | D. E. Shaw & Co., Inc. 13F manager | Add | Common stock | $254.1K | +20K +1.68% | 1,218,969 1.50% of shares | low |
| Q2 2026 as of | Focused Alpha, LLC 13F manager | New | Common stock | $203.7K | +15K | 14,657 0.02% of shares | low |
| Q1 2026 as of | Thompson Davis & Co., Inc. 13F manager | New | Common stock | $149.3K | +12K | 11,865 0.01% of shares | low |
| Q1 2026 as of | Prudential Financial Inc 13F manager | New | Common stock | $145.8K | +12K | 11,593 0.01% of shares | low |