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Calix, Inc

CALX
Exchange
NYSE
Industry
Communications Services, NEC
SEC CIK
0001406666

In the last 90 days, Calix, Inc insiders filed 0 open-market purchases and 1 sale; 287 institutions reported holding it in 13F filings for Q2 2026, worth $2.27B in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in Calix, Inc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
332
+25 vs. Q3 2025
Shares held
58.8M
+2.30M (+4.1%) vs. Q3 2025
Total value
$3.11B
−$354.8M (−10.2%) vs. Q3 2025
New holders
59
127 more added
Sold out
34
101 more reduced

7 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CALX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 332 institutions
Q1 2021: 199 institutionsQ2 2021: 183 institutionsQ3 2021: 191 institutionsQ4 2021: 215 institutionsQ1 2022: 230 institutionsQ2 2022: 203 institutionsQ3 2022: 231 institutionsQ4 2022: 274 institutionsQ1 2023: 272 institutionsQ2 2023: 267 institutionsQ3 2023: 277 institutionsQ4 2023: 263 institutionsQ1 2024: 260 institutionsQ2 2024: 254 institutionsQ3 2024: 241 institutionsQ4 2024: 253 institutionsQ1 2025: 260 institutionsQ2 2025: 296 institutionsQ3 2025: 314 institutionsQ4 2025: 332 institutionsQ1 2026: 310 institutionsQ2 2026: 287 institutions
Value heldQ4 2025: $3.11B
Q1 2021: $1.71BQ2 2021: $2.31BQ3 2021: $2.50BQ4 2021: $4.12BQ1 2022: $2.26BQ2 2022: $1.82BQ3 2022: $3.31BQ4 2022: $3.70BQ1 2023: $2.90BQ2 2023: $2.71BQ3 2023: $2.51BQ4 2023: $2.48BQ1 2024: $1.91BQ2 2024: $2.04BQ3 2024: $2.21BQ4 2024: $2.00BQ1 2025: $2.00BQ2 2025: $2.97BQ3 2025: $3.48BQ4 2025: $3.11BQ1 2026: $2.94BQ2 2026: $2.27B
Institutions holding CALX and their total value by quarter
QuarterHoldersValue
Q2 2026287$2.27B
Q1 2026310$2.94B
Q4 2025332$3.11B
Q3 2025314$3.48B
Q2 2025296$2.97B
Q1 2025260$2.00B
Q4 2024253$2.00B
Q3 2024241$2.21B
Q2 2024254$2.04B
Q1 2024260$1.91B
Q4 2023263$2.48B
Q3 2023277$2.51B
Q2 2023267$2.71B
Q1 2023272$2.90B
Q4 2022274$3.70B
Q3 2022231$3.31B
Q2 2022203$1.82B
Q1 2022230$2.26B
Q4 2021215$4.12B
Q3 2021191$2.50B
Q2 2021183$2.31B
Q1 2021199$1.71B

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding Calix, Inc; share changes are against Q3 2025.

Institutions holding CALX in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.11,462,941$606.7M0.01%−255,312−2.2%Reduced
Vanguard Group Inc8,302,450$439.4M0.01%−186,628−2.2%Reduced
State Street Corp2,362,965$125.1M0.00%+23,022+1.0%Added
Alliancebernstein L.P.1,462,371$77.4M0.02%+52,642+3.7%Added
Congress Asset Management Co1,447,545$76.6M0.54%−15,657−1.1%Reduced
Geode Capital Management, LLC1,445,338$76.5M0.00%+74,235+5.4%Added
Millennium Management LLC1,441,912$76.3M0.05%−523,006−26.6%Reduced
Arrowstreet Capital, Limited Partnership1,277,505$67.6M0.04%+3,079+0.2%Added
Westfield Capital Management Co LP1,145,292$60.6M0.25%+461,196+67.4%Added
Fuller & Thaler Asset Management, Inc.1,094,173$57.9M0.20%+1,094,173New
Acadian Asset Management LLC1,030,115$54.5M0.09%+191,001+22.8%Added
Lord, Abbett & Co. LLC987,431$52.3M0.16%+91,175+10.2%Added
Dimensional Fund Advisors LP948,619$50.2M0.01%+2,754+0.3%Added
Gilder Gagnon Howe & Co LLC887,927$47.0M0.50%−14,694−1.6%Reduced
Loomis Sayles & Co L P789,892$41.8M0.05%+172,879+28.0%Added
Mirae Asset Global ETFs Holdings Ltd.765,415$40.5M0.06%+18,276+2.4%Added
Price T Rowe Associates Inc688,186$36.4M0.00%−545,040−44.2%Reduced
Charles Schwab Investment Management Inc673,045$35.6M0.01%−4,771−0.7%Reduced
Paradigm Capital Management Inc672,400$35.6M1.50%00.0%Unchanged
Wellington Management Group LLP639,729$33.9M0.01%−19,734−3.0%Reduced
Morgan Stanley622,875$33.0M0.00%+60,993+10.9%Added
Northern Trust Corp595,626$31.5M0.00%−17,226−2.8%Reduced
Artisan Partners Limited Partnership590,187$31.2M0.05%−120,010−16.9%Reduced
Invesco Ltd.577,771$30.6M0.00%+95,738+19.9%Added
Harvey Partners, LLC533,732$28.3M2.54%+2320.0%Added
Hood River Capital Management LLC523,261$27.7M0.30%+68,842+15.1%Added
Qube Research & Technologies Ltd472,046$25.0M0.04%+230,483+95.4%Added
Renaissance Technologies LLC463,618$24.5M0.04%+202,800+77.8%Added
Bank of America Corp459,456$24.3M0.00%+127,599+38.4%Added
Jacobs Levy Equity Management, Inc425,598$22.5M0.09%−54,708−11.4%Reduced
Bank of New York Mellon Corp405,881$21.5M0.00%−71,257−14.9%Reduced
Nuveen, LLC403,391$21.4M0.01%+6,936+1.7%Added
Goldman Sachs Group Inc401,736$21.3M0.00%+132,781+49.4%Added
Nomura Asset Management International Inc.387,821$20.5M0.03%+387,821New
Alyeska Investment Group, L.P.375,132$19.9M0.06%+375,132New
UBS Group AG359,100$19.0M0.00%−448,720−55.5%Reduced
Principal Financial Group Inc342,648$18.1M0.01%+55,331+19.3%Added
Trexquant Investment LP309,838$16.4M0.15%+298,057+2,530.0%Added
Divisar Capital Management LLC299,963$15.9M4.46%+55,875+22.9%Added
Federated Hermes, Inc.297,750$15.8M0.03%+182,214+157.7%Added
G2 Investment Partners Management LLC261,000$13.8M3.29%+21,000+8.8%Added
Russell Investments Group, Ltd.254,560$13.5M0.01%+18,195+7.7%Added
Penn Capital Management Co Inc253,087$13.4M1.07%+906+0.4%Added
Neuberger Berman Group LLC253,237$13.4M0.01%+31,046+14.0%Added
Oberweis Asset Management Inc244,600$12.9M0.47%+244,600New
Rockefeller Capital Management L.P.238,035$12.6M0.02%−184,689−43.7%Reduced
Deutsche Bank AG222,265$11.8M0.00%+1,749+0.8%Added
Connor, Clark & Lunn Investment Management Ltd.216,950$11.5M0.03%−50,871−19.0%Reduced
SEI Investments Co216,536$11.5M0.01%+43,178+24.9%Added
New York State Common Retirement Fund213,149$11.3M0.02%−3,729−1.7%Reduced
Public Sector Pension Investment Board208,738$11.0M0.04%−23,048−9.9%Reduced
ExodusPoint Capital Management, LP196,862$10.4M0.12%+196,862New
Synergy Financial Management, LLC189,221$10.0M1.04%+189,221New
Advisor Group Holdings, Inc.177,810$9.41M0.01%−25,791−12.7%Reduced
Prudential Financial Inc176,219$9.33M0.01%−53,154−23.2%Reduced
Engineers Gate Manager LP170,439$9.02M0.11%+15,649+10.1%Added
Voloridge Investment Management, LLC165,390$8.75M0.03%+135,353+450.6%Added
Panagora Asset Management Inc165,218$8.74M0.03%+45,537+38.0%Added
Legal & General Group Plc164,715$8.72M0.00%−6,585−3.8%Reduced
UBS Asset Management Americas Inc158,726$8.40M0.00%−3,431−2.1%Reduced
Defiance ETFs, LLC156,781$8.31M0.27%+156,781New
Penserra Capital Management LLC156,781$8.30M0.10%−3,285−2.1%Reduced
Rhumbline Advisers156,416$8.28M0.01%−12,373−7.3%Reduced
Polar Asset Management Partners Inc.152,208$8.06M0.16%+152,208New
HighTower Advisors, LLC144,836$7.67M0.01%−371−0.3%Reduced
Squarepoint Ops LLC127,775$6.76M0.01%+127,775New
Tudor Investment Corp Et Al124,516$6.59M0.04%−165,673−57.1%Reduced
FMR LLC123,540$6.54M0.00%+52,803+74.6%Added
Jane Street Group, LLC122,909$6.51M0.01%−22,614−15.5%Reduced
Swiss National Bank122,300$6.47M0.00%+3,000+2.5%Added
Algert Global LLC117,936$6.24M0.10%−25,740−17.9%Reduced
Allianz Asset Management GmbH115,409$6.11M0.01%+55,473+92.6%Added
4D Advisors, LLC115,000$6.09M3.34%+115,000New
Man Group plc114,307$6.05M0.01%+51,343+81.5%Added
Ameriprise Financial Inc109,775$5.81M0.00%−6,199−5.3%Reduced
JPMorgan Chase & Co109,613$5.80M0.00%−6,682−5.7%Reduced
Canada Pension Plan Investment Board101,477$5.37M0.00%+15,100+17.5%Added
Intech Investment Management LLC101,074$5.35M0.05%+57,065+129.7%Added
North Star Asset Management Inc98,383$5.21M0.21%+2,382+2.5%Added
Barclays PLC98,322$5.20M0.00%+9,055+10.1%Added
Lisanti Capital Growth, LLC95,736$5.07M1.20%+14,415+17.7%Added
First Trust Advisors LP92,240$4.88M0.00%+85,563+1,281.5%Added
Marathon Capital Management80,585$4.27M0.92%+385+0.5%Added
Wells Fargo & Company71,905$3.81M0.00%+30,081+71.9%Added
State of Wisconsin Investment Board71,777$3.80M0.01%−2,328−3.1%Reduced
Hillsdale Investment Management Inc.68,950$3.65M0.10%−410−0.6%Reduced
Bridgewater Associates, LP65,536$3.47M0.01%+29,642+82.6%Added
Envestnet Asset Management Inc64,622$3.42M0.00%−25,622−28.4%Reduced
Bessemer Group Inc64,284$3.40M0.01%+63,927+17,906.7%Added
Boothbay Fund Management, LLC63,981$3.39M0.09%−2,489−3.7%Reduced
Amundi63,249$3.35M0.00%+52,885+510.3%Added
New York State Teachers Retirement System61,400$3.25M0.01%−100−0.2%Reduced
Y-Intercept (Hong Kong) Ltd58,744$3.11M0.07%+54,947+1,447.1%Added
Mackenzie Financial Corp58,057$3.07M0.00%+18,084+45.2%Added
Connors Investor Services Inc57,984$3.07M0.26%−1,480−2.5%Reduced
California State Teachers Retirement System57,589$3.05M0.00%+29+0.1%Added
Jump Financial, LLC56,400$2.99M0.04%+38,700+218.6%Added
XTX Topco Ltd54,339$2.88M0.08%+54,339New
Gsa Capital Partners LLP53,867$2.85M0.25%+33,691+167.0%Added
Castleark Management LLC52,920$2.80M0.08%+52,920New