CALIX INC (CALX) Institutional Ownership Changes & 13F Activity
CALIX INC (CALX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Alliancebernstein L.P., Price T Rowe Associates Inc, Point72 Asset Management, L.P., Millennium Management Llc, and Citadel Advisors Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Neuberger Berman Group Llc | Sell | -253,237 | -100.0% | 0 | $0.00 | Q1 2026 | Oct 27, 2026 |
| Mirae Asset Global Investments Co., Ltd. | Sell | -2,265 | -9.1% | 22,629 | $1.11M | Q1 2026 | Aug 12, 2026 |
| Algert Global Llc | Sell | -117,936 | -100.0% | 0 | $0.00 | Q1 2026 | Aug 11, 2026 |
| Wells Fargo & Company/Mn | Sell | -41,444 | -57.6% | 30,461 | $1.49M | Q1 2026 | Jul 08, 2026 |
| Bank Of America Corp | Buy | +290,661 | +63.3% | 750,117 | $36.75M | Q1 2026 | May 18, 2026 |
| Edgestream Partners, L.P. | Buy | +75,751 | — | 75,751 | $3.71M | Q1 2026 | May 18, 2026 |
| Amundi | Sell | -45,551 | -72.0% | 17,698 | $867.02K | Q1 2026 | May 18, 2026 |
| California State Teachers Retirement System | Buy | +18,755 | +32.6% | 76,344 | $3.74M | Q1 2026 | May 18, 2026 |
| Alliancebernstein L.P. | Buy | +1,788,757 | +122.3% | 3,251,128 | $172.08M | Q1 2026 | May 15, 2026 |
| Price T Rowe Associates Inc | Sell | -621,435 | -90.3% | 66,751 | $3.27M | Q1 2026 | May 15, 2026 |
| Point72 Asset Management, L.P. | Buy | +513,814 | — | 513,814 | $25.17M | Q1 2026 | May 15, 2026 |
| Millennium Management Llc | Buy | +462,060 | +32.0% | 1,903,972 | $93.28M | Q1 2026 | May 15, 2026 |
| Citadel Advisors Llc | Buy | +382,357 | +834.1% | 428,198 | $20.98M | Q1 2026 | May 15, 2026 |
| Squarepoint Ops Llc | Buy | +331,027 | +259.1% | 458,802 | $22.48M | Q1 2026 | May 15, 2026 |
| Divisadero Street Capital Management, Lp | Buy | +305,670 | — | 305,670 | $14.97M | Q1 2026 | May 15, 2026 |
| Qube Research & Technologies Ltd | Sell | -261,010 | -55.3% | 211,036 | $10.34M | Q1 2026 | May 15, 2026 |
| State Street Corp | Buy | +239,368 | +10.1% | 2,602,333 | $127.64M | Q1 2026 | May 15, 2026 |
| Jacobs Levy Equity Management, Inc | Sell | -203,716 | -47.9% | 221,882 | $10.87M | Q1 2026 | May 15, 2026 |
| Nomura Asset Management International Inc. | Buy | +169,174 | +43.6% | 556,995 | $27.29M | Q1 2026 | May 15, 2026 |
| Man Group Plc | Buy | +166,006 | +145.2% | 280,313 | $13.73M | Q1 2026 | May 15, 2026 |
| Two Sigma Investments, Lp | Buy | +141,890 | +725.2% | 161,455 | $7.91M | Q1 2026 | May 15, 2026 |
| Trexquant Investment Lp | Buy | +119,529 | +38.6% | 429,367 | $21.03M | Q1 2026 | May 15, 2026 |
| Nearwater Capital Markets, Ltd | Buy | +118,200 | — | 118,200 | $5.79M | Q1 2026 | May 15, 2026 |
| Gilder Gagnon Howe & Co Llc | Sell | -108,835 | -12.3% | 779,092 | $38.17M | Q1 2026 | May 15, 2026 |
| Wellington Management Group Llp | Sell | -105,212 | -16.4% | 534,517 | $26.19M | Q1 2026 | May 15, 2026 |
| G2 Investment Partners Management Llc | Sell | -100,458 | -38.5% | 160,542 | $7.86M | Q1 2026 | May 15, 2026 |
| Goldman Sachs Group Inc | Sell | -94,268 | -23.5% | 307,468 | $15.06M | Q1 2026 | May 15, 2026 |
| Oberweis Asset Management Inc/ | Buy | +90,430 | +37.0% | 335,030 | $16.41M | Q1 2026 | May 15, 2026 |
| Morgan Stanley | Buy | +89,338 | +14.3% | 712,213 | $34.89M | Q1 2026 | May 15, 2026 |
| Barclays Plc | Sell | -86,503 | -88.0% | 11,819 | $579.01K | Q1 2026 | May 15, 2026 |
Frequently asked questions about CALX activity
Which institutional owners are buying CALX?
Institutional owners buying CALX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in CALX activity?
"Buy" means an investor increased their reported position in CALX compared to the prior reporting period. This reflects growing exposure to CALIX INC (CALX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in CALX increasing?
Institutional interest in CALX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related CALX Institutional Insights
- CALX Overview
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- Technology Sector Institutional Ownership
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- Institutional Portfolio Overlap & Shared Holdings
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- CALX Insider Trading & SEC Form 4 Activity
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