Skip to main content
Equibles

CALX

Calix, Inc

Company with tickers: CALX

CIK
1406666
CUSIP
13100M509
Shares Outstanding
63,782,299
13F Activity (30d)
98 filings 94 filers

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 256
Total Value: $1,230,379,029
Total Shares: 25,114,905
Showing 1–100 of 257 holdings by value · page 1 of 3

Institutional Ownership Trend

25 quarters

Superinvestors Holding CALX

All superinvestors →
Joel Greenblatt $1,478,322

Holder Concentration

Across 256 13F filers · Δ vs Dec 31, 2025
Top Holder
10.7%
Jun 2023 → Mar 2026 · range 10.3% – 20.7%
+0.4 pts
Top 5
39.5%
Jun 2023 → Mar 2026 · range 32.9% – 49.2%
+6.5 pts
Top 10
54.0%
Jun 2023 → Mar 2026 · range 48.9% – 61.5%
+5.1 pts
HHI
418
Jun 2023 → Mar 2026 · range 333 – 750
Broadly held+85

Quarterly Activity

vs Dec 31, 2025
New
46
Increased
96
Decreased
74
Sold Out
78
Unchanged
40
Holder count: -32
Institutional value: +1.2%
Shares held: +9.4%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Large Squarepoint Ops LLC +331,027 458,802
Large MetLife Investment Management, LLC +279,431 312,407
Mega STATE STREET CORP +239,368 2,602,333
Large CONGRESS ASSET MANAGEMENT CO +196,744 1,644,289
Large Man Group plc +166,006 280,313

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Large LORD, ABBETT & CO. LLC −866,186 121,245
Large ACADIAN ASSET MANAGEMENT LLC −229,785 800,330
Large JACOBS LEVY EQUITY MANAGEMENT, INC −203,716 221,882
Large ExodusPoint Capital Management, LP −144,541 52,321
Small G2 Investment Partners Management LLC −100,458 160,542

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 2,686,525 $131,612,859
Large WESTFIELD CAPITAL MANAGEMENT CO LP 1,546,101 $75,743,487
Mid GILDER GAGNON HOWE & CO LLC 779,092 $38,167,717
Mid PARADIGM CAPITAL MANAGEMENT INC/NY 768,200 $37,634,118
Mega VANGUARD FIDUCIARY TRUST CO 418,439 $20,499,326

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 1,277,505 $67,618,339
Large LOOMIS SAYLES & CO L P 789,892 $41,808,982
Mid Harvey Partners, LLC 533,732 $28,250,434
Large Qube Research & Technologies Ltd 472,046 $24,985,394
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. 387,821 $20,527,365
Filter: New 46 Increased 96 Reduced 74 Sold out 78 Unchanged 40
Showing 100 of 257
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega VANGUARD CAPITAL MANAGEMENT LLC $131,612,859 10.70% 2,686,525
Mega STATE STREET CORP $127,488,293 10.36% 2,602,333
Large CONGRESS ASSET MANAGEMENT CO $80,553,718 6.55% 1,644,289
Large WESTFIELD CAPITAL MANAGEMENT CO LP $75,743,487 6.16% 1,546,101
Mega GEODE CAPITAL MANAGEMENT, LLC $70,335,236 5.72% 1,435,706
Large ACADIAN ASSET MANAGEMENT LLC $39,208,166 3.19% 800,330
Mid GILDER GAGNON HOWE & CO LLC $38,167,717 3.10% 779,092
Mid PARADIGM CAPITAL MANAGEMENT INC/NY $37,634,118 3.06% 768,200
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $34,138,925 2.77% 696,855
Mega NORTHERN TRUST CORP Bank $29,871,257 2.43% 609,742
Large Squarepoint Ops LLC $22,476,709 1.83% 458,802
Mega Nuveen, LLC $21,209,925 1.72% 432,944
Large Trexquant Investment LP $21,034,689 1.71% 429,367
Mega VANGUARD FIDUCIARY TRUST CO Bank $20,499,326 1.67% 418,439
Mega PRINCIPAL FINANCIAL GROUP INC $19,367,363 1.57% 395,333
Mid Penn Capital Management Company, LLC $18,545,850 1.51% 378,564
Small Divisar Capital Management LLC $16,664,585 1.35% 340,163
Mid OBERWEIS ASSET MANAGEMENT INC/ $16,413,119 1.33% 335,030
Large MetLife Investment Management, LLC $15,304,818 1.24% 312,407
Large Rockefeller Capital Management L.P. $14,676,765 1.19% 299,587
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $14,196,567 1.15% 289,785
Large Man Group plc $13,732,533 1.12% 280,313
Mega SCHRODER INVESTMENT MANAGEMENT GROUP $13,611,968 1.11% 277,852
Large SEI INVESTMENTS CO $13,193,986 1.07% 269,320
Mega DEUTSCHE BANK AG\ Bank $12,395,595 1.01% 253,023
Large JACOBS LEVY EQUITY MANAGEMENT, INC $10,869,999 0.88% 221,882
Large Public Sector Pension Investment Board Pension $10,572,482 0.86% 215,809
Large Russell Investments Group, Ltd. $9,444,631 0.77% 192,787
Large OSAIC HOLDINGS, INC. $8,816,680 0.72% 179,969
Mid Defiance ETFs, LLC Mutual Fund $8,589,367 0.70% 175,329
Mid Penserra Capital Management LLC $8,589,367 0.70% 175,329
Large PANAGORA ASSET MANAGEMENT INC $8,113,772 0.66% 165,621
Mega TWO SIGMA INVESTMENTS, LP $7,909,680 0.64% 161,455
Small G2 Investment Partners Management LLC $7,864,952 0.64% 160,542
Mega RHUMBLINE ADVISERS $7,791,173 0.63% 159,036
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $7,719,839 0.63% 157,580
Mid SG Capital Management LLC $7,710,977 0.63% 157,399
Large Allianz Asset Management GmbH $7,527,803 0.61% 153,660
Mega Legal & General Group Plc $7,447,703 0.61% 152,025
Mid Engineers Gate Manager LP $6,346,213 0.52% 129,541
Mega Swiss National Bank Bank $6,099,255 0.50% 124,500
Mid INTECH INVESTMENT MANAGEMENT LLC $5,962,034 0.48% 121,699
Large LORD, ABBETT & CO. LLC $5,939,792 0.48% 121,245
Large HighTower Advisors, LLC $5,836,129 0.47% 119,129
Mid Nearwater Capital Markets, Ltd $5,790,618 0.47% 118,200
Mid NORTH STAR ASSET MANAGEMENT INC $4,872,790 0.40% 99,465
Mega ENVESTNET ASSET MANAGEMENT INC $4,801,509 0.39% 98,010
Small Counterpoint Mutual Funds LLC Mutual Fund $4,186,489 0.34% 85,456
Large HRT FINANCIAL LP $4,062,495 0.33% 82,925
Small MARATHON CAPITAL MANAGEMENT $4,005,177 0.33% 81,755
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $3,740,092 0.30% 76,344
Mid Edgestream Partners, L.P. $3,711,041 0.30% 75,751
Mid Y-Intercept (Hong Kong) Ltd $3,541,291 0.29% 72,286
Large TUDOR INVESTMENT CORP ET AL $3,174,649 0.26% 64,802
Large BESSEMER GROUP INC $3,153,583 0.26% 64,372
Mid XTX Topco Ltd $3,054,379 0.25% 62,347
Mid GSA CAPITAL PARTNERS LLP $2,944,347 0.24% 60,101
Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM Pension $2,912,014 0.24% 59,441
Small CONNORS INVESTOR SERVICES INC $2,859,448 0.23% 58,368
Mid Aquatic Capital Management LLC $2,813,005 0.23% 57,420
Mega FIRST TRUST ADVISORS LP $2,778,565 0.23% 56,717
Large Blackstone Inc. $2,763,427 0.22% 56,408
Mega VANGUARD ASSET MANAGEMENT, Ltd $2,674,021 0.22% 54,583
Large ExodusPoint Capital Management, LP $2,563,205 0.21% 52,321
Large CANADA LIFE ASSURANCE Co Insurance $2,459,689 0.20% 50,208
Large Assenagon Asset Management S.A. $2,432,353 0.20% 49,650
Small THOMPSON INVESTMENT MANAGEMENT, INC. $2,196,711 0.18% 44,840
Mid OpenArc Corporate Advisory, LLC $2,087,659 0.17% 42,614
Large State of New Jersey Common Pension Fund D Pension $2,007,904 0.16% 40,986
Mid SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC $1,977,873 0.16% 40,373
Mega LPL Financial LLC $1,971,847 0.16% 40,250
Mid BOOTHBAY FUND MANAGEMENT, LLC $1,904,045 0.15% 38,866
Large VOYA INVESTMENT MANAGEMENT LLC $1,898,852 0.15% 38,760
Small FORMULA GROWTH LTD $1,861,620 0.15% 38,000
Large Universal- Beteiligungs- und Servicegesellschaft mbH $1,823,162 0.15% 37,215
Small Jackson Creek Investment Advisors LLC $1,785,587 0.15% 36,448
Mega AMERICAN CENTURY COMPANIES INC $1,772,556 0.14% 36,182
Large Pathstone Holdings, LLC $1,640,723 0.13% 33,491
Mid State of Alaska, Department of Revenue $1,612,260 0.13% 32,910
Large CAPITAL FUND MANAGEMENT S.A. $1,536,571 0.12% 31,365
Large Creative Planning $1,535,885 0.12% 31,351
Mid Illinois Municipal Retirement Fund Pension $1,528,536 0.12% 31,201
Large Gotham Asset Management, LLC $1,478,322 0.12% 30,176
Mid WINTON GROUP Ltd $1,394,206 0.11% 28,459
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $1,309,257 0.11% 26,725
Mid Louisiana State Employees Retirement System Pension $1,308,033 0.11% 26,700
Large Federation des caisses Desjardins du Quebec $1,300,929 0.11% 26,555
Large STIFEL FINANCIAL CORP $1,293,041 0.11% 26,394
Small JACKSON SQUARE CAPITAL, LLC $1,224,750 0.10% 25,000
Mega Vanguard Global Advisers, LLC $1,205,741 0.10% 24,612
Small Integrated Quantitative Investments LLC $1,144,553 0.09% 23,363
Large Mirae Asset Global Investments Co., Ltd. $1,108,594 0.09% 22,629
Large State of Tennessee, Department of Treasury $1,087,920 0.09% 22,207
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,036,187 0.08% 21,151
Mega D. E. Shaw & Co., Inc. $1,032,562 0.08% 21,077
Large Tidal Investments LLC $1,023,988 0.08% 20,902
Large STRS OHIO $1,009,194 0.08% 20,600
Mid CAXTON ASSOCIATES LLP $989,206 0.08% 20,192
Mid MEEDER ASSET MANAGEMENT INC $976,563 0.08% 19,934
Small Gibbs Wealth Management $957,362 0.08% 19,542

Report a Problem

Category
Description
Email (optional, for follow-up)