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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, Q3 2025

Institutional positions in Calix, Inc as of Sep 30, 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
314
+22 vs. Q2 2025
Shares held
56.7M
+955.3K (+1.7%) vs. Q2 2025
Total value
$3.48B
+$514.0M (+17.4%) vs. Q2 2025
New holders
52
112 more added
Sold out
30
101 more reduced

4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 314 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 heldQ3 2025: $3.48B
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, Q3 2025

Shares, value and share of portfolio for each institution holding Calix, Inc; share changes are against Q2 2025.

Institutions holding CALX in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
UBS Group AG807,820$49.6M0.01%−29,461−3.5%Reduced
Acadian Asset Management LLC839,114$51.5M0.09%+622,405+287.2%Added
Lord, Abbett & Co. LLC896,256$55.0M0.16%+83,094+10.2%Added
Gilder Gagnon Howe & Co LLC902,621$55.4M0.56%−11,077−1.2%Reduced
Dimensional Fund Advisors LP945,865$58.0M0.01%−142,547−13.1%Reduced
Price T Rowe Associates Inc1,233,226$75.7M0.01%+1,182,878+2,349.4%Added
Arrowstreet Capital, Limited Partnership1,274,426$78.2M0.05%+868,987+214.3%Added
Geode Capital Management, LLC1,371,103$84.2M0.01%+15,978+1.2%Added
Alliancebernstein L.P.1,409,729$86.5M0.03%+61,247+4.5%Added
Congress Asset Management Co1,463,202$89.8M0.60%+45,258+3.2%Added
Millennium Management LLC1,964,918$120.6M0.09%−282,204−12.6%Reduced
State Street Corp2,339,943$143.6M0.00%+6,609+0.3%Added
Vanguard Group Inc8,489,078$521.0M0.01%−126,306−1.5%Reduced
BlackRock, Inc.11,718,253$719.1M0.01%+253,648+2.2%Added
Point72 Asset Management, L.P.0$00.00%−162,318−100.0%Sold out
Polar Asset Management Partners Inc.0$00.00%−152,684−100.0%Sold out
Edgestream Partners, L.P.0$00.00%−142,353−100.0%Sold out
SG Capital Management LLC0$00.00%−120,463−100.0%Sold out
Driehaus Capital Management LLC0$00.00%−92,855−100.0%Sold out
DC Investments Management, LLC0$00.00%−76,642−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−72,565−100.0%Sold out
Nebula Research & Development LLC0$00.00%−68,827−100.0%Sold out
Healthcare of Ontario Pension Plan Trust Fund0$00.00%−42,100−100.0%Sold out
Jefferies Financial Group Inc.0$00.00%−22,900−100.0%Sold out
Squarepoint Ops LLC0$00.00%−22,243−100.0%Sold out
Walleye Trading LLC0$00.00%−18,589−100.0%Sold out
Quantbot Technologies LP0$00.00%−17,685−100.0%Sold out
Susquehanna Fundamental Investments, LLC0$00.00%−15,976−100.0%Sold out
TownSquare Capital, LLC0$00.00%−9,482−100.0%Sold out
Bridgefront Capital, LLC0$00.00%−7,831−100.0%Sold out
Versor Investments LP0$00.00%−4,800−100.0%Sold out
Teza Capital Management LLC0$00.00%−4,132−100.0%Sold out
Quadrature Capital Ltd0$00.00%−4,079−100.0%Sold out
Point72 Asia (Singapore) Pte. Ltd.0$00.00%−3,676−100.0%Sold out
Skopos Labs, Inc.0$00.00%−2,708−100.0%Sold out
Raymond James Financial Inc0$00.00%−564−100.0%Sold out
Simplex Trading, LLC0$00.00%−455−100.0%Sold out
Group One Trading, L.P.0$00.00%−297−100.0%Sold out
LRI Investments, LLC0$00.00%−230−100.0%Sold out
Twin Peaks Wealth Advisors, LLC0$00.00%−97−100.0%Sold out
Beacon Capital Management, LLC0$00.00%−51−100.0%Sold out
MAI Capital Management0$00.00%−38−100.0%Sold out
Steward Partners Investment Advisory, LLC0$00.00%−21−100.0%Sold out
Bokf, NA0$00.00%−8−100.0%Sold out
Congress Wealth Management LLC––––Not filed
Scott Marsh Financial, LLC––––Not filed
CIBC World Markets Corp––––Not filed
Parkworth Wealth Management, Inc.––––Not filed