3 institutions reported holding $12.8M of ADTRAN HOLDINGS INC COM (ADTN) in SEC 13F filings for 2026-06-30. Largest institutional holders: Assenagon Asset Management S.A. ($12.8M), GAMMA Investing LLC ($48,052), Versant Capital Management, Inc ($36,571). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Assenagon Asset Management S.A. | $12.8M | 917,754 | Added |
| 2 | GAMMA Investing LLC | $48,052 | 3,457 | Added |
| 3 | Versant Capital Management, Inc | $36,571 | 2,631 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30