CALIX INC CALX
COM · Common Stock · CUSIP 13100M509 · ISIN US13100M5094
- SectorCommunication
- IndustryCommunications Services, NEC
- HeadquartersSan Jose, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($7.7m this quarter). Holder counts are more reliable. Shares outstanding: 66.7m as of 2025-02-10, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $34.86. Options: 7 managers hold calls ($7.3m notional), 9 hold puts ($44.9m).
Trends to Q4 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 231 |
| Q4 2022 | 275 |
| Q1 2023 | 272 |
| Q2 2023 | 268 |
| Q3 2023 | 278 |
| Q4 2023 | 264 |
| Q1 2024 | 261 |
| Q2 2024 | 255 |
| Q3 2024 | 242 |
| Q4 2024 | 254 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q1 2023 | 156 | 131 |
| Q2 2023 | 148 | 127 |
| Q3 2023 | 155 | 129 |
| Q4 2023 | 128 | 141 |
| Q1 2024 | 142 | 132 |
| Q2 2024 | 140 | 135 |
| Q3 2024 | 129 | 114 |
| Q4 2024 | 128 | 115 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2024 | $7.5m | $3.7m | 0.49 |
| Q2 2024 | $7.9m | $3.9m | 0.49 |
| Q3 2024 | $10.7m | $14.8m | 1.38 |
| Q4 2024 | $7.3m | $44.9m | 6.17 |
Biggest buyers
| MILLENNIUM MANAGEMENT LLC | Added | +889.1k |
| BlackRock, Inc. | Added | +530.3k |
| Harvey Partners, LLC | New | +425.0k |
| VANGUARD GROUP INC | Added | +413.0k |
| Balyasny Asset Management L.P. | Added | +382.3k |
| JACOBS LEVY EQUITY MANAGEMENT, INC | Added | +364.2k |
| Connor, Clark & Lunn Investment Management Ltd. | Added | +256.8k |
| Rockefeller Capital Management L.P. | Added | +234.5k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | New | +218.1k |
| GOLDMAN SACHS GROUP INC | Added | +176.6k |
Biggest sellers
| ALLIANCEBERNSTEIN L.P. | Reduced | -3.0m |
| Invesco Ltd. | Reduced | -536.2k |
| ACK Asset Management LLC | Sold out | -321.1k |
| CONGRESS ASSET MANAGEMENT CO | Reduced | -290.1k |
| GILDER GAGNON HOWE & CO LLC | Reduced | -271.8k |
| PARADIGM CAPITAL MANAGEMENT INC/NY | Reduced | -269.9k |
| Driehaus Capital Management LLC | Sold out | -258.6k |
| Pier Capital, LLC | Sold out | -238.4k |
| TD Asset Management Inc | Reduced | -181.3k |
| NATIONAL BANK OF CANADA /FI/ | Sold out | -142.2k |
Biggest calls
| CITADEL ADVISORS LLC | Reduced | $2.8m81.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $2.1m60.4k shares |
| WOLVERINE TRADING, LLC | Added | $1.2m34.8k shares |
| PEAK6 LLC | First filing | $711.3k20.4k shares |
| SIMPLEX TRADING, LLC | Reduced | $421.0k12.1k shares |
| GROUP ONE TRADING LLC | Reduced | $7.0k200 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $17.8m509.2k shares |
| SG Capital Management LLC | Added | $17.4m498.8k shares |
| Caption Management, LLC | New | $5.8m165.0k shares |
| WOLVERINE TRADING, LLC | Added | $2.1m60.4k shares |
| CITADEL ADVISORS LLC | Reduced | $1.0m28.7k shares |
| GROUP ONE TRADING LLC | New | $871.8k25.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $41.0k1.2k shares |
| TradeLink Capital LLC | New | $1.0k78 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +1.3 pts · filed 2026-07-30 | 16.2% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 8.6% |
| ALLIANCEBERNSTEIN L.P. 13G · institution +1.6 pts · filed 2026-05-18 | 5.0% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q4 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q1 2023 | 0 | — | 1 | $272.4k | — |
| Q2 2023 | 0 | — | 1 | $220.5k | — |
| Q3 2023 | 1 | $11.9k | 2 | $4.8m | — |
| Q4 2023 | 0 | — | 1 | $2.0m | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 1 | $939.0k | $939.0k |
| Q4 2024 | 0 | — | 1 | $885.5k | $885.5k |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-11-04 | Russo Carl Director · See Footnote | Sold plan | $885.5k25.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q4 2024
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 11.3m $395.4m | Added +530.3k |
| VANGUARD GROUP INC 0.00% of their portfolio | 8.0m $278.2m | Added +413.0k |
| STATE STREET CORP 0.00% of their portfolio | 2.5m $86.0m | Added +149.1k |
| ALLIANCEBERNSTEIN L.P. 0.03% of their portfolio | 2.2m $78.1m | Reduced -3.0m |
| MILLENNIUM MANAGEMENT LLC 0.06% of their portfolio | 2.0m $70.8m | Added +889.1k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 1.8m $63.9m | Added +74.7k |
| TD Asset Management Inc 0.04% of their portfolio | 1.4m $48.6m | Reduced -181.3k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 1.4m $47.9m | Added +45.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.3m $46.7m | Added +6.1k |
| CONGRESS ASSET MANAGEMENT CO 0.30% of their portfolio | 1.3m $44.5m | Reduced -290.1k |
| Artisan Partners Limited Partnership 0.06% of their portfolio | 1.1m $38.7m | Reduced -29.5k |
| PARADIGM CAPITAL MANAGEMENT INC/NY 1.71% of their portfolio | 1.1m $36.9m | Reduced -269.9k |
| MORGAN STANLEY 0.00% of their portfolio | 990.7k $34.5m | Reduced -36.3k |
| Alyeska Investment Group, L.P. 0.11% of their portfolio | 817.3k $28.5m | Reduced -111.6k |
| Epoch Investment Partners, Inc. 0.13% of their portfolio | 790.3k $27.6m | Reduced -76.1k |
| Trigran Investments, Inc. 2.89% of their portfolio | 721.6k $25.2m | Reduced -20.7k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.09% of their portfolio | 708.7k $24.7m | Added +364.2k |
| GILDER GAGNON HOWE & CO LLC 0.26% of their portfolio | 683.9k $23.8m | Reduced -271.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 649.2k $22.6m | Added +48.1k |
| Rockefeller Capital Management L.P. 0.06% of their portfolio | 645.0k $22.5m | Added +234.5k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 632.5k $22.1m | Added +54.1k |
| Polar Asset Management Partners Inc. 0.31% of their portfolio | 607.5k $21.2m | Added +47.2k |
| Divisar Capital Management LLC 4.50% of their portfolio | 594.4k $20.7m | Added +146.2k |
| SG Capital Management LLC 2.19% of their portfolio | 572.2k $20.0m | Added +135.8k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.04% of their portfolio | 551.5k $19.2m | Added +29.3k |
| Balyasny Asset Management L.P. 0.04% of their portfolio | 436.0k $15.2m | Added +382.3k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 434.9k $15.2m | Added +176.6k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 432.6k $15.1m | Added +29.8k |
| Harvey Partners, LLC 1.67% of their portfolio | 425.0k $14.8m | New |
| Mesirow Institutional Investment Management, Inc. 1.03% of their portfolio | 385.3k $13.4m | Added +23.6k |
| KORNITZER CAPITAL MANAGEMENT INC /KS 0.25% of their portfolio | 373.7k $13.0m | Reduced -56.0k |
| Assenagon Asset Management S.A. 0.02% of their portfolio | 369.6k $12.9m | Reduced -32.0k |
| NORGES BANK 0.00% of their portfolio | 330.3k $11.5m | Not comparable |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 290.9k $10.1m | Reduced -63.1k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 287.5k $10.0m | Added +10.4k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 280.6k $9.8m | Reduced -120 |
| NEEDHAM INVESTMENT MANAGEMENT LLC 0.74% of their portfolio | 275.0k $9.6m | Added +25.0k |
| Connor, Clark & Lunn Investment Management Ltd. 0.04% of their portfolio | 266.2k $9.3m | Added +256.8k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 246.2k $8.6m | Reduced -8.9k |
| Invesco Ltd. 0.00% of their portfolio | 238.9k $8.3m | Reduced -536.2k |
| DC Investments Management, LLC 5.22% of their portfolio | 229.4k $8.0m | Unchanged |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.03% of their portfolio | 218.1k $7.6m | New |
| BARCLAYS PLC 0.00% of their portfolio | 214.5k $7.5m | Added +100.9k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 202.3k $7.1m | Added +1.1k |
| UBS Group AG 0.00% of their portfolio | 195.5k $6.8m | Added +132.9k |
| Jain Global LLC 0.19% of their portfolio | 179.7k $6.3m | First filing |
| Legal & General Group Plc 0.00% of their portfolio | 174.5k $6.1m | Added +5.9k |
| PANAGORA ASSET MANAGEMENT INC 0.03% of their portfolio | 171.7k $6.0m | Added +60.7k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 168.5k $5.9m | Added +2.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 160.4k $5.6m | Reduced -43.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 159.4k $5.6m | Added +29.8k |
| FORMULA GROWTH LTD 1.83% of their portfolio | 155.0k $5.4m | Added +55.0k |
| Divisadero Street Capital Management, LP 0.67% of their portfolio | 154.7k $5.4m | New |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 152.6k $5.3m | Reduced -6.4k |
| TUDOR INVESTMENT CORP ET AL 0.06% of their portfolio | 151.3k $5.3m | Added +108.9k |
| CW Advisors, LLC 0.07% of their portfolio | 150.6k $5.3m | Reduced -96.2k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 147.0k $5.1m | Added +22.8k |
| Squarepoint Ops LLC 0.01% of their portfolio | 146.5k $5.1m | Added +25.4k |
| OV Management LLC 2.26% of their portfolio | 139.6k $4.9m | Added +1.1k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 135.8k $4.7m | Reduced -5.2k |
| HighTower Advisors, LLC 0.01% of their portfolio | 118.2k $4.1m | Added +27.6k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 117.5k $4.1m | Added +1.5k |
| Swiss National Bank 0.00% of their portfolio | 116.5k $4.1m | Added +1.3k |
| MARATHON CAPITAL MANAGEMENT 1.00% of their portfolio | 115.1k $4.0m | Reduced -5.7k |
| ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio | 114.7k $4.0m | Added +112.0k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio | 113.9k $4.0m | Reduced -15.3k |
| G2 Investment Partners Management LLC 1.02% of their portfolio | 113.0k $3.9m | Added +8.1k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 110.2k $3.8m | New |
| Engineers Gate Manager LP 0.07% of their portfolio | 108.3k $3.8m | Added +15.0k |
| CONNORS INVESTOR SERVICES INC 0.34% of their portfolio | 103.2k $3.6m | Added +21.4k |
| NORTH STAR ASSET MANAGEMENT INC 0.14% of their portfolio | 92.4k $3.2m | Added +2.7k |
| THOMPSON INVESTMENT MANAGEMENT, INC. 0.46% of their portfolio | 90.9k $3.2m | Added +4.0k |
| New Age Alpha Advisors, LLC 0.12% of their portfolio | 85.5k $3.0m | New |
| CITIGROUP INC 0.00% of their portfolio | 84.3k $2.9m | Added +8.7k |
| Jump Financial, LLC 0.06% of their portfolio | 77.0k $2.7m | Added +47.3k |
| TOWNSQUARE CAPITAL LLC 0.03% of their portfolio | 76.2k $2.7m | Reduced -37.4k |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 71.3k $2.5m | Reduced -52.8k |
| MACKENZIE FINANCIAL CORP 0.00% of their portfolio | 71.1k $2.4m | Added +62.0k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 68.9k $2.4m | Reduced -2.6k |
| Jefferies Financial Group Inc. 0.03% of their portfolio | 67.4k $2.4m | Reduced -23.9k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 66.2k $2.3m | Reduced -1.1k |
| Edgestream Partners, L.P. 0.10% of their portfolio | 65.9k $2.3m | Added +32.7k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 65.5k $2.3m | Reduced -112.5k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 61.4k $2.1m | Unchanged |
| SEI INVESTMENTS CO 0.00% of their portfolio | 61.2k $2.1m | Reduced -4.2k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 60.1k $1.8m | Reduced -868 |
| MARSHALL WACE, LLP 0.00% of their portfolio | 58.0k $2.0m | New |
| PDT Partners, LLC 0.18% of their portfolio | 57.4k $2.0m | Reduced -14.4k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 55.4k $1.9m | Reduced -367 |
| Trexquant Investment LP 0.02% of their portfolio | 51.4k $1.8m | New |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 51.0k $1.8m | Added +25.8k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 45.6k $1.6m | Reduced -369 |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 43.2k $1.5m | Added +4.0k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.00% of their portfolio | 42.6k $1.5m | Unchanged |
| ExodusPoint Capital Management, LP 0.02% of their portfolio | 42.0k $1.5m | Added +20.1k |
| BOOTHBAY FUND MANAGEMENT, LLC 0.04% of their portfolio | 41.2k $1.4m | Added +21.0k |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 39.4k $1.4m | Reduced -50.8k |
| Atom Investors LP 0.17% of their portfolio | 38.6k $1.3m | Reduced -65.0k |
| 1492 Capital Management LLC 0.64% of their portfolio | 38.3k $1.3m | New |
| GSA CAPITAL PARTNERS LLP 0.09% of their portfolio | 35.8k $1.2m | New |