CALX: CALIX, INC insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 0 sales totaling - in the last 180 days.
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-07-30 | 13G amendment | BlackRock, Inc. | 16.20% | SEC |
Institutional ownership (Q2 2026)
287 institutions reported holding $2.19B of CALIX, INC on Form 13F (310 the quarter before). 36 opened a new position and 59 sold out. Shares held by institutions: same.
| Largest holders | Shares | Value |
|---|---|---|
| BlackRock, Inc. | 11,775,490 | $439.46M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5,588,048 | $208.55M |
| ALLIANCEBERNSTEIN L.P. | 3,248,412 | $159.14M |
| STATE STREET CORP | 2,915,560 | $108.79M |
| VANGUARD CAPITAL MANAGEMENT LLC | 2,587,424 | $96.56M |
| GEODE CAPITAL MANAGEMENT, LLC | 1,481,595 | $55.30M |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1,324,534 | $49.43M |
| DIMENSIONAL FUND ADVISORS LP | 1,309,436 | $48.86M |
| CITADEL ADVISORS LLC | 1,208,764 | $45.11M |
| PARADIGM CAPITAL MANAGEMENT INC/NY | 997,134 | $37.21M |
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