CALX · Calix, Inc · Shareholders & Ownership
Every disclosed holder of CALX in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.
Who Owns CALX
13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positionsNo chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.
| Holder group | Shares | % Out |
|---|---|---|
| Institutional (13F) | 60,844,347 | 96.63% |
| Insiders (Forms 3, 4, 5) | 6,010,951 | 9.55% |
| 13D/G-only blocks | 0 | 0.00% |
| Remaining | 3,891,309 | -6.18% |
| Registered funds (N-PORT, not summed) | 29,703,078 | 47.17% |
Shares outstanding: 62,963,989, the issuer's latest cover-page count restated onto today's split basis.
Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.
13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.
Holders of CALX
| # | Holder | Shares | As of | Notes |
|---|---|---|---|---|
| 1 |
BlackRock, Inc.
13F
CIK 2012383 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
11,775,490 | ||
| 1.1 |
BlackRock, Inc.
13G
CIK 2012383 · Holding company · Jun 30, 2026
Rule 13d-1(b), qualified institution, not summed
|
10,323,597 | ||
| 1.2 |
iShares Core S&P Small-Cap ETF
Fund
S000004313 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
3,497,584 | ||
| 1.3 |
iShares Russell 2000 ETF
Fund
S000004344 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
1,537,083 | ||
| 1.4 |
iShares Cybersecurity and Tech ETF
Fund
S000065015 · Registered fund · Jul 31, 2026
iShares Trust, not summed
|
855,655 | ||
| 1.5 |
iShares Russell 2000 Growth ETF
Fund
S000004343 · Registered fund · Jun 30, 2026
iShares Trust, not summed
|
547,030 | ||
| 2 |
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
CIK 2100121 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
5,588,048 | ||
| 3 |
|
5,541,007 | ||
| 3.1 |
|
7,269,452 | ||
| 4 |
ALLIANCEBERNSTEIN L.P.
13F
CIK 1109448 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
3,248,412 | ||
| 4.1 |
AB Discovery Value Fund
Fund
S000010412 · Registered fund · Jun 30, 2026
AB TRUST, not summed
|
556,686 | ||
| 4.2 |
AB SUSTAINABLE GLOBAL THEMATIC FUND, INC.
Fund
S000010074 · Registered fund · Jun 30, 2026
AB SUSTAINABLE GLOBAL THEMATIC FUND, INC., not summed
|
301,580 | ||
| 4.3 |
AB Discovery Value Portfolio
Fund
S000010436 · Registered fund · Jun 30, 2026
AB VARIABLE PRODUCTS SERIES FUND, INC., not summed
|
167,069 | ||
| 4.4 |
AB Small Cap Value Portfolio
Fund
S000045542 · Registered fund · Jun 30, 2026
AB CAP FUND, INC., not summed
|
103,884 | ||
| 4.5 |
Small Cap Core Portfolio
Fund
S000051867 · Registered fund · Jun 30, 2026
Bernstein Fund Inc, not summed
|
56,397 | ||
| 5 |
|
2,915,560 | ||
| 5.1 |
State Street(R) SPDR(R) S&P(R) Telecom ETF
Fund
S000012323 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
557,878 | ||
| 5.2 |
State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF
Fund
S000041317 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
533,811 | ||
| 5.3 |
State Street(R) SPDR(R) S & P 600(TM) Small Cap Growth ETF
Fund
S000006990 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
327,509 | ||
| 5.4 |
STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO
Fund
S000050332 · Registered fund · Jun 30, 2026
STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
|
19,800 | ||
| 5.5 |
State Street(R) SPDR(R) Portfolio S&P 1500(R) Composite Stock Market ETF
Fund
S000006973 · Registered fund · Jun 30, 2026
SPDR SERIES TRUST, not summed
|
11,268 | ||
| 6 |
VANGUARD CAPITAL MANAGEMENT LLC
13F
CIK 2100119 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
2,587,424 | ||
| 7 |
VANGUARD TOTAL STOCK MARKET INDEX FUND
Fund
S000002848 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,816,146 | ||
| 8 |
VANGUARD INFORMATION TECHNOLOGY INDEX FUND
Fund
S000004452 · Registered fund · May 31, 2026
VANGUARD WORLD FUND, not summed
|
1,548,202 | ||
| 9 |
GEODE CAPITAL MANAGEMENT, LLC
13F
CIK 1214717 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,481,595 | ||
| 10 |
WESTFIELD CAPITAL MANAGEMENT CO LP
13F
CIK 1177719 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,324,534 | ||
| 11 |
VANGUARD SMALL-CAP INDEX FUND
Fund
S000002845 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
1,315,270 | ||
| 12 |
DIMENSIONAL FUND ADVISORS LP
13F
CIK 354204 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,309,436 | ||
| 12.1 |
U.S. SMALL CAP PORTFOLIO
Fund
S000000971 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
250,264 | ||
| 12.2 |
Dimensional U.S. Small Cap ETF
Fund
S000070906 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
206,763 | ||
| 12.3 |
U.S. MICRO CAP PORTFOLIO
Fund
S000000948 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
189,300 | ||
| 12.4 |
Dimensional U.S. Core Equity 2 ETF
Fund
S000070903 · Registered fund · Jul 31, 2026
Dimensional ETF Trust, not summed
|
125,916 | ||
| 12.5 |
U.S. CORE EQUITY 2 PORTFOLIO
Fund
S000000980 · Registered fund · Jul 31, 2026
DFA INVESTMENT DIMENSIONS GROUP INC, not summed
|
90,852 | ||
| 13 |
ACADIAN ASSET MANAGEMENT LLC
13F
CIK 916542 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,241,622 | ||
| 14 |
CITADEL ADVISORS LLC
13F
CIK 1423053 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
1,208,764 | ||
| 15 |
PARADIGM CAPITAL MANAGEMENT INC/NY
13F
CIK 1037792 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
997,134 | ||
| 16 |
FORT WASHINGTON INVESTMENT ADVISORS INC /OH/
13F
CIK 1009016 · Unknown · Sep 30, 2026
|
933,937 | ||
| 17 |
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
13F
CIK 1164508 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
875,837 | ||
| 18 |
|
857,360 | ||
| 19 |
LOOMIS SAYLES & CO L P
13F
CIK 312348 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
784,798 | ||
| 19.1 |
Loomis Sayles Small Cap Growth Fund
Fund
S000006705 · Registered fund · Jun 30, 2026
LOOMIS SAYLES FUNDS II, not summed
|
424,658 | ||
| 20 |
VANGUARD SMALL-CAP GROWTH INDEX FUND
Fund
S000002846 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
755,133 | ||
| 21 |
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
13F
CIK 1705339 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
753,302 | ||
| 21.1 |
Global X U.S. Infrastructure Development ETF
Fund
S000056509 · Registered fund · May 31, 2026
GLOBAL X FUNDS, not summed
|
668,154 | ||
| 21.2 |
Global X Russell 2000 ETF
Fund
S000085029 · Registered fund · Jul 31, 2026
GLOBAL X FUNDS, not summed
|
28,326 | ||
| 22 |
JANE STREET GROUP, LLC
13F
CIK 1595888 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
718,768 | ||
| 23 |
TWO SIGMA INVESTMENTS, LP
13F
CIK 1179392 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
703,911 | ||
| 24 |
MILLENNIUM MANAGEMENT LLC
13F
CIK 1273087 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
698,620 | ||
| 25 |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
CIK 884546 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
696,967 | ||
| 25.1 |
Schwab U.S. Small-Cap ETF
Fund
S000026636 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
288,686 | ||
| 25.2 |
Schwab Small-Cap Index Fund
Fund
S000005912 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
144,102 | ||
| 25.3 |
Schwab Fundamental U.S. Small Company ETF
Fund
S000040878 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
85,885 | ||
| 25.4 |
Schwab Total Stock Market Index Fund
Fund
S000005913 · Registered fund · Jul 31, 2026
SCHWAB CAPITAL TRUST, not summed
|
35,354 | ||
| 25.5 |
Schwab U.S. Broad Market ETF
Fund
S000026631 · Registered fund · May 31, 2026
SCHWAB STRATEGIC TRUST, not summed
|
34,435 | ||
| 26 |
VANGUARD EXTENDED MARKET INDEX FUND
Fund
S000002841 · Registered fund · Jun 30, 2026
VANGUARD INDEX FUNDS, not summed
|
665,925 | ||
| 27 |
Harbor Small Cap Growth Fund
Fund
S000000686 · Registered fund · Jul 31, 2026
HARBOR FUNDS, not summed
|
659,769 | ||
| 28 |
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.
13F
CIK 921739 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
659,563 | ||
| 28.1 |
Nomura Small Cap Core Fund
Fund
S000002400 · Registered fund · May 29, 2026
Delaware Group Equity Funds V, not summed
|
433,810 | ||
| 29 |
NORTHERN TRUST CORP
13F
CIK 73124 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
642,151 | ||
| 29.1 |
Small Cap Index Fund
Fund
S000001245 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
30,006 | ||
| 29.2 |
Small Cap Core Fund
Fund
S000001244 · Registered fund · Jun 30, 2026
Northern Funds, not summed
|
10,535 | ||
| 29.3 |
FlexShares Morningstar US Market Factor Tilt Index Fund
Fund
S000033312 · Registered fund · Jul 31, 2026
FlexShares Trust, not summed
|
3,413 | ||
| 30 |
GILDER GAGNON HOWE & CO LLC
13F
CIK 902464 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
580,323 | ||
| 31 |
VANGUARD STRATEGIC EQUITY FUND
Fund
S000002593 · Registered fund · Jun 30, 2026
VANGUARD HORIZON FUNDS, not summed
|
560,626 | ||
| 32 |
BANK OF AMERICA CORP /DE/
13F
CIK 70858 · Bank · Jun 30, 2026
carried, not yet filed for the newest quarter
|
560,034 | ||
| 33 |
RENAISSANCE TECHNOLOGIES LLC
13F
CIK 1037389 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
548,118 | ||
| 34 |
MORGAN STANLEY
13F
CIK 895421 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
524,882 | ||
| 34.1 |
E*TRADE No Fee Total Market Index Fund
Fund
S000090722 · Registered fund · Jul 31, 2026
E Trade Trust, not summed
|
150 | ||
| 35 |
WELLINGTON MANAGEMENT GROUP LLP
13F
CIK 902219 · Holding company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
519,153 | ||
| 36 |
HRT FINANCIAL LP
13F
CIK 1475597 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
517,152 | ||
| 37 |
Rockefeller Capital Management L.P.
13F
CIK 1739439 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
466,594 | ||
| 37.1 |
Rockefeller US Small Cap Core Fund
Fund
S000080973 · Registered fund · Aug 31, 2026
Trust for Professional Managers, not summed
|
85,649 | ||
| 38 |
Trigran Investments, Inc.
13F
CIK 1336800 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
442,008 | ||
| 39 |
Harvey Partners, LLC
13F
CIK 1406484 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
420,500 | ||
| 40 |
VANGUARD FIDUCIARY TRUST CO
13F
CIK 933478 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
417,114 | ||
| 41 |
D. E. Shaw & Co., Inc.
13F
CIK 1009207 · Unknown · Jun 30, 2026
carried, not yet filed for the newest quarter
|
409,082 | ||
| 42 |
OBERWEIS ASSET MANAGEMENT INC/
13F
CIK 937886 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
402,230 | ||
| 42.1 |
Oberweis Small-Cap Opportunities Fund
Fund
S000010232 · Registered fund · Jun 30, 2026
OBERWEIS FUNDS, not summed
|
355,100 | ||
| 43 |
Alyeska Investment Group, L.P.
13F
CIK 1453072 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
400,088 | ||
| 44 |
Divisar Capital Management LLC
13F
CIK 1645721 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
395,163 | ||
| 45 |
PRINCIPAL FINANCIAL GROUP INC
13F
CIK 1126328 · Insurance company · Jun 30, 2026
carried, not yet filed for the newest quarter
|
393,019 | ||
| 45.1 |
Principal U.S. Small-Cap ETF
Fund
S000055159 · Registered fund · Jun 30, 2026
Principal Exchange-Traded Funds, not summed
|
107,963 | ||
| 45.2 |
SmallCap S&P 600 Index Fund
Fund
S000007203 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
|
42,764 | ||
| 45.3 |
SmallCap Growth Fund I
Fund
S000007175 · Registered fund · Jul 31, 2026
Principal Funds, Inc, not summed
|
5,149 | ||
| 46 |
Penn Capital Management Company, LLC
13F
CIK 1158202 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
388,239 | ||
| 47 |
VANGUARD TAX-MANAGED SMALL-CAP FUND
Fund
S000004387 · Registered fund · Jun 30, 2026
VANGUARD TAX-MANAGED FUNDS, not summed
|
375,581 | ||
| 48 |
|
366,953 | ||
| 48.1 |
College Retirement Equities Fund - Total Global Stock Account
Fund
S000005080 · Registered fund · Jun 30, 2026
College Retirement Equities Fund, not summed
|
94,740 | ||
| 48.2 |
Nuveen Small Cap Blend Index Fund
Fund
S000005367 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
78,327 | ||
| 48.3 |
Nuveen Quant Small/Mid Cap Equity Fund
Fund
S000054623 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
60,506 | ||
| 48.4 |
Nuveen Equity Index Fund
Fund
S000005360 · Registered fund · Jul 31, 2026
TIAA-CREF Funds, not summed
|
58,384 | ||
| 48.5 |
Nuveen ESG Small-Cap ETF
Fund
S000055815 · Registered fund · Jul 31, 2026
NuShares ETF Trust, not summed
|
56,408 | ||
| 49 |
MACKENZIE FINANCIAL CORP
13F
CIK 919859 · Registered investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
323,524 | ||
| 50 |
FEDERATED HERMES, INC.
13F
CIK 1056288 · Investment adviser · Jun 30, 2026
carried, not yet filed for the newest quarter
|
322,879 |
46 more nested rows are not shown here; Every filing lists them all.
Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.
Showing 1–50 of 425 holders
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