CALX Calix, Inc.
Calix, Inc. (CALX) Institutional Ownership
What the institutions did with CALX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 11.8M | 19.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.6M | 9.3% |
| ALLIANCEBERNSTEIN L.P. | 3.2M | 5.4% |
| STATE STREET CORP | 2.9M | 4.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.6M | 4.3% |
| GEODE CAPITAL MANAGEMENT, LLC | 1.5M | 2.5% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1.3M | 2.2% |
| DIMENSIONAL FUND ADVISORS LP | 1.3M | 2.2% |
| ACADIAN ASSET MANAGEMENT LLC | 1.2M | 2.1% |
| CITADEL ADVISORS LLC | 1.2M | 2.0% |
| PARADIGM CAPITAL MANAGEMENT INC/NY | 997.1K | 1.7% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 875.8K | 1.5% |
| UBS Group AG | 857.4K | 1.4% |
| LOOMIS SAYLES & CO L P | 784.8K | 1.3% |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 753.3K | 1.3% |
| JANE STREET GROUP, LLC | 718.8K | 1.2% |
| TWO SIGMA INVESTMENTS, LP | 703.9K | 1.2% |
| MILLENNIUM MANAGEMENT LLC | 698.6K | 1.2% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 697.0K | 1.2% |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 659.6K | 1.1% |
| NORTHERN TRUST CORP | 642.2K | 1.1% |
| GILDER GAGNON HOWE & CO LLC | 580.3K | 1.0% |
| BANK OF AMERICA CORP /DE/ | 560.0K | 0.9% |
| RENAISSANCE TECHNOLOGIES LLC | 548.1K | 0.9% |
| MORGAN STANLEY | 524.9K | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| CONGRESS ASSET MANAGEMENT CO | Reduced | 1.6M | 8.9K | -1.6M |
| MILLENNIUM MANAGEMENT LLC | Reduced | 1.9M | 698.6K | -1.2M |
| CITADEL ADVISORS LLC | Increased | 428.2K | 1.2M | +780.6K |
| BlackRock, Inc. | Increased | 11.2M | 11.8M | +622.1K |
| TWO SIGMA INVESTMENTS, LP | Increased | 161.5K | 703.9K | +542.5K |
| Artisan Partners Limited Partnership | Sold Out | 529.9K | 0 | -529.9K |
| Point72 Asset Management, L.P. | Sold Out | 513.8K | 0 | -513.8K |
| Trigran Investments, Inc. | New | 0 | 442.0K | +442.0K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 800.3K | 1.2M | +441.3K |
| HRT FINANCIAL LP | Increased | 82.9K | 517.2K | +434.2K |
| Alyeska Investment Group, L.P. | New | 0 | 400.1K | +400.1K |
| D. E. Shaw & Co., Inc. | Increased | 21.1K | 409.1K | +388.0K |
| JANE STREET GROUP, LLC | Increased | 351.9K | 718.8K | +366.8K |
| Squarepoint Ops LLC | Reduced | 458.8K | 95.8K | -363.0K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 551.2K | 875.8K | +324.7K |
| STATE STREET CORP | Increased | 2.6M | 2.9M | +313.2K |
| Divisadero Street Capital Management, LP | Reduced | 305.7K | 5.7K | -300.0K |
| MetLife Investment Management, LLC | Reduced | 312.4K | 34.6K | -277.9K |
| NEEDHAM INVESTMENT MANAGEMENT LLC | New | 0 | 275.0K | +275.0K |
| SCHRODER INVESTMENT MANAGEMENT GROUP | Reduced | 277.9K | 11.1K | -266.8K |
| MACKENZIE FINANCIAL CORP | Increased | 72.5K | 323.5K | +251.1K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | Increased | 308 | 237.3K | +236.9K |
| PARADIGM CAPITAL MANAGEMENT INC/NY | Increased | 768.2K | 997.1K | +228.9K |
| WESTFIELD CAPITAL MANAGEMENT CO LP | Reduced | 1.5M | 1.3M | -221.6K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 15.1K | 230.1K | +215.0K |
| UBS Group AG | Increased | 645.2K | 857.4K | +212.1K |
| WESTERLY CAPITAL MANAGEMENT, LLC | New | 0 | 205.0K | +205.0K |
| GILDER GAGNON HOWE & CO LLC | Reduced | 779.1K | 580.3K | -198.8K |
| BANK OF AMERICA CORP /DE/ | Reduced | 750.1K | 560.0K | -190.1K |
| MORGAN STANLEY | Reduced | 712.2K | 524.9K | -187.3K |
| Polar Asset Management Partners Inc. | Sold Out | 173.7K | 0 | -173.7K |
| OSAIC HOLDINGS, INC. | Reduced | 180.0K | 7.1K | -172.9K |
| Rockefeller Capital Management L.P. | Increased | 299.6K | 466.6K | +167.0K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Reduced | 221.9K | 57.5K | -164.4K |
| SG Capital Management LLC | Sold Out | 157.4K | 0 | -157.4K |
| Harvey Partners, LLC | Reduced | 572.5K | 420.5K | -152.0K |
| Trexquant Investment LP | Reduced | 429.4K | 299.6K | -129.8K |
| FMR LLC | Increased | 134.5K | 263.0K | +128.5K |
| LORD, ABBETT & CO. LLC | Sold Out | 121.2K | 0 | -121.2K |
| Nearwater Capital Markets, Ltd | Sold Out | 118.2K | 0 | -118.2K |
| NATIXIS | New | 0 | 112.1K | +112.1K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | Increased | 557.0K | 659.6K | +102.6K |
| Allianz Asset Management GmbH | Reduced | 153.7K | 53.1K | -100.5K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 2.7M | 2.6M | -99.1K |
| INTECH INVESTMENT MANAGEMENT LLC | Reduced | 121.7K | 25.8K | -95.9K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.2M | 1.3M | +90.9K |
| Hillsdale Investment Management Inc. | Reduced | 86.3K | 200 | -86.1K |
| JPMORGAN CHASE & CO | Increased | 98.5K | 184.0K | +85.6K |
| Counterpoint Mutual Funds LLC | Sold Out | 85.5K | 0 | -85.5K |
| CANADA PENSION PLAN INVESTMENT BOARD | Reduced | 89.5K | 8.4K | -81.1K |
| Holocene Advisors, LP | Increased | 10.5K | 91.6K | +81.1K |
| SEI INVESTMENTS CO | Reduced | 269.3K | 189.9K | -79.4K |
| TUDOR INVESTMENT CORP ET AL | Increased | 64.8K | 142.6K | +77.8K |
| FORMULA GROWTH LTD | Increased | 38.0K | 115.0K | +77.0K |
| Edgestream Partners, L.P. | Sold Out | 75.8K | 0 | -75.8K |
| AQR CAPITAL MANAGEMENT LLC | Increased | 38.7K | 106.1K | +67.4K |
| OBERWEIS ASSET MANAGEMENT INC/ | Increased | 335.0K | 402.2K | +67.2K |
| Nuveen, LLC | Reduced | 432.9K | 367.0K | -66.0K |
| Bank of New York Mellon Corp | Reduced | 387.5K | 321.8K | -65.6K |
| ALGERT GLOBAL LLC | New | 0 | 60.4K | +60.4K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.