6 institutions reported holding $1.2M of Calix Inc (CALX) in SEC 13F filings for 2026-06-30. Largest institutional holders: Assenagon Asset Management S.A. ($749,572), CONGRESS ASSET MANAGEMENT CO ($332,073), GAMMA Investing LLC ($33,476), HARBOR INVESTMENT ADVISORY, LLC ($31,349), Versant Capital Management, Inc ($4,180). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Assenagon Asset Management S.A. | $749,572 | 20,085 | Trimmed |
| 2 | CONGRESS ASSET MANAGEMENT CO | $332,073 | 8,898 | Trimmed |
| 3 | GAMMA Investing LLC | $33,476 | 897 | Trimmed |
| 4 | HARBOR INVESTMENT ADVISORY, LLC | $31,349 | 840 | New |
| 5 | Versant Capital Management, Inc | $4,180 | 112 | Added |
| 6 | MassMutual Private Wealth & Trust, FSB | $2,314 | 62 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30