Calix, Inc. 13F holders
Of the 44 funds followed here, 7 reported a position in Calix, Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 1.5 million shares worth $55.3 million, 0.0% of its reported book. New this quarter: Alyeska. Sold out: Point72 Asset Management.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 1,481,595 | $55.3 million | 0.0% | +45,889 | added | 30 June 2026 | 13F |
| Citadel Advisors | 1,247,364 | $46.6 million | 0.0% | +783,966 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 703,911 | $26.3 million | 0.0% | +542,456 | added | 30 June 2026 | 13F |
| Millennium Management | 698,620 | $26.1 million | 0.0% | -1,205,352 | trimmed | 30 June 2026 | 13F |
| Renaissance Technologies | 548,118 | $20.5 million | 0.0% | +4,700 | added | 30 June 2026 | 13F |
| Alyeska | 400,088 | $14.9 million | 0.0% | +400,088 | new | 30 June 2026 | 13F |
| FMR LLC | 263,002 | $9.8 million | 0.0% | +128,494 | added | 30 June 2026 | 13F |
| Point72 Asset Management | 0 | $0 | 0.0% | -513,814 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 30 July 2026 | 13G/A | BlackRock, Inc. and 1 other | 10.3 million | 16.2% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 18 May 2026 | 13G | AllianceBernstein L.P. and 1 other | 3.3 million | 5.0% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 29 April 2026 | 13G | Vanguard Portfolio Management and 1 other | 5.6 million | 8.6% | 31 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 26 March 2026 | 13G/A | The Vanguard Group and 1 other | 0 | 0.0% | 13 March 2026 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short.Fails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 11 September 2026 | 4 | $34.93 | SEC |
| 4 September 2026 | 18 | $37.07 | SEC |
| 25 August 2026 | 7 | $39.80 | SEC |
| 20 August 2026 | 66 | $40.55 | SEC |
| 11 August 2026 | 78 | $38.17 | SEC |
| 10 August 2026 | 5 | $37.98 | SEC |
| 5 August 2026 | 523 | $39.47 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
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Largest in the window: 523 on 5 August 2026. A fail is an operational fact about settlement, not a position.Source
Each fund's 13F-HR on EDGAR, linked per row; positions matched to CALX by CUSIP from the SEC's own fails-to-deliver files; Schedule 13D and 13G from the company's own filing index, each read to confirm the company is the issuer named.
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