CALIX INC

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CALX·13100M509·US·Common Stock·Technology - Software - Infrastructure-13D/G

CALX (CALIX INC) is held by 147 institutional investors as of Q2 2026. Largest holders: BlackRock, Inc. ($439.5M), VANGUARD PORTFOLIO MANAGEMENT LLC ($208.5M), ALLIANCEBERNSTEIN L.P. ($159.1M). Net institutional sentiment: Mixed.

147

Holders

(11 Elite)

$2B

Total Value

47% (157)

Consensus

73 buying - 84 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)30

Insider (Form 4)68

Activist (13D/13G)55

Congressional (STOCK Act)81

Holder Quality

47

★★★★★

Elite

31

★★★★

Strong

55

★★★

Solid

13

★★

Below

48

★

Weak

Held by 147 funds

11 elite

Who's Trading

Source dates: Price Aug 27, 2026 · Insiders none · Activists Jul 30, 2026 · Congress none

ActivistBlackRock, Inc.16.2%Jul 30, 2026

ActivistVPVanguard Portfolio Management8.6%Apr 29, 2026

ActivistThe Vanguard Group0.0%Mar 26, 2026

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Top Holders

Top Holders (147)History

AllNewIncreasedHeldDecreasedExited

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
BlackRock, Inc.	Increased	11.8M(+5.6%)	$439.5M	0.0%	+6.30%	33
VPVANGUARD PORTFOLIO MANAGEMENT LLC	Increased	5.6M(+1.0%)	$208.5M	0.0%	-21.52%	31
ALLIANCEBERNSTEIN L.P.	Decreased	3.2M(-0.1%)	$159.1M	0.1%	-16.23%	0
STATE STREET CORP	Increased	2.9M(+12.0%)	$108.8M	0.0%	-9.29%	34
VAVANGUARD CAPITAL MANAGEMENT LLC	Decreased	2.6M(-3.7%)	$96.6M	0.0%	-21.70%	0
GEODE CAPITAL MANAGEMENT, LLC	Increased	1.5M(+3.2%)	$55.3M	0.0%	+49.38%	30
WESTFIELD CAPITAL MANAGEMENT CO LP	Decreased	1.3M(-14.3%)	$49.4M	0.2%	-29.10%	0
DIMENSIONAL FUND ADVISORS LP	Increased	1.3M(+7.5%)	$48.9M	0.0%	-23.13%	32
CITADEL ADVISORS LLC	Increased	1.2M(+182.3%)	$45.1M	0.0%	-7.39%	47
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	Increased	875,837(+58.9%)	$32.7M	0.0%	-21.05%	41
UBS Group AG	Increased	857,360(+32.9%)	$32M	0.0%	-5.48%	37
LOOMIS SAYLES & CO L P	Decreased	784,798(-6.6%)	$29.3M	0.0%	-30.16%	0
MAMIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	Increased	753,302(+8.1%)	$28.1M	0.0%	+6.03%	31
JANE STREET GROUP, LLC	Increased	718,768(+104.2%)	$26.8M	0.0%	-14.02%	46
TWO SIGMA INVESTMENTS, LP	Increased	703,911(+336.0%)	$26.3M	0.0%	-3.67%	46
MILLENNIUM MANAGEMENT LLC	Decreased	698,620(-63.3%)	$26.1M	0.0%	-10.64%	0
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	Increased	696,967(+2.2%)	$26M	0.0%	+52.88%	29
NANOMURA ASSET MANAGEMENT INTERNATIONAL INC.	Increased	659,563(+18.4%)	$24.6M	0.0%	-22.49%	34
NORTHERN TRUST CORP	Increased	642,151(+5.3%)	$24M	0.0%	+49.16%	30
GGGILDER GAGNON HOWE & CO LLC	Decreased	580,323(-25.5%)	$21.7M	0.2%	+37.69%	0

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Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer