Calix, Inc. (CALX) Insider Trading

Over the last 6 months, 253 institutions increased and 210 reduced their position (13F).

Insider Activity

Sentiment
50/100
Buys (3m)
0
Sells (3m)
0
Net (3m)
$0
Insider trades by month Buys Sells
Nov
Feb
May
Jul
Aug
Oct
Context3-month price -19.6%Institutions mixed (13F)
DateInsiderTypeSharesPrice
Nov 28, 2023SINDELAR CORYofficer: Chief Financial OfficerGrant100,000$37.80
Nov 28, 2023Weening Michaeldirector, officer: President & CEOGrant120,000$37.80
Oct 30, 2023Collins John Matthewofficer: Chief Commercial Ops OfficerOption15,000$8.03
Oct 30, 2023Collins John Matthewofficer: Chief Commercial Ops OfficerSell60,000$33.14
Oct 30, 2023Collins John Matthewofficer: Chief Commercial Ops OfficerOption30,000$9.16
Aug 4, 2023LISTWIN DONALD JdirectorSell100,000$43.15
Jul 26, 2023Collins John Matthewofficer: Chief Commercial Ops OfficerSell10,000$47.12
Jul 26, 2023Collins John Matthewofficer: Chief Commercial Ops OfficerOption5,000$8.03
May 19, 2023Fields EleanordirectorGrant8,183$42.79
May 19, 2023CRUSCO KATHLEEN MdirectorGrant8,183$42.79
May 19, 2023BOWICK CHRISTOPHER JdirectorGrant8,183$42.79
May 19, 2023Peters Kevin RobertdirectorGrant8,183$42.79
May 19, 2023LISTWIN DONALD JdirectorGrant8,183$42.79
May 19, 2023Russo Carldirector, 10 percent owner: Grant8,183$42.79
May 19, 2023Makagon KiradirectorGrant8,183$42.79
May 19, 2023Mukherjee RajatishdirectorGrant8,183$42.79
May 18, 2023LISTWIN DONALD JdirectorOption9,960$33.46
May 12, 2023LISTWIN DONALD JdirectorGrant7,160$42.79
May 12, 2023Makagon KiradirectorGrant7,160$42.79
May 12, 2023Mukherjee RajatishdirectorGrant7,160$42.79
May 12, 2023Peters Kevin RobertdirectorGrant7,160$42.79
May 12, 2023Fields EleanordirectorGrant7,160$42.79
May 12, 2023BOWICK CHRISTOPHER JdirectorGrant7,160$42.79
May 12, 2023Russo Carldirector, 10 percent owner: Grant7,160$42.79
May 12, 2023CRUSCO KATHLEEN MdirectorGrant7,160$42.79
May 3, 2023Collins John Matthewofficer: Chief Commercial Ops OfficerOption5,000$6.95
May 3, 2023Collins John Matthewofficer: Chief Commercial Ops OfficerSell5,000$44.10
Feb 16, 2023Weening Michaelofficer: President & CEOGrant199$45.25
Feb 16, 2023SINDELAR CORYofficer: Chief Financial OfficerGrant439$45.25
Feb 10, 2023SINDELAR CORYofficer: Chief Financial OfficerGrant80,000$55.96

Source: CALX SEC Form 4 filings, latest Nov 28, 2023. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their CALX positions over the last 6 months (SEC Form 13F).

Increased
253
New positions
96
Reduced
210
Sold out
103
Largest moves
InstitutionActionSharesFiled
BLACKROCK, INC.Reduced11.5MFeb 12, 2026
BLACKROCK, INC.Reduced11.2MMay 13, 2026
VANGUARD GROUP INCReduced8.3MJan 29, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position5.5MMay 8, 2026
ALLIANCEBERNSTEIN L.P.Increased3.3MMay 15, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position2.7MMay 15, 2026
STATE STREET CORPIncreased2.6MMay 15, 2026
STATE STREET CORPIncreased2.4MFeb 13, 2026
MILLENNIUM MANAGEMENT LLCIncreased1.9MMay 15, 2026
CONGRESS ASSET MANAGEMENT CO /MAIncreased1.6MApr 14, 2026
WESTFIELD CAPITAL MANAGEMENT CO LPIncreased1.5MMay 11, 2026
ALLIANCEBERNSTEIN L.P.Increased1.5MFeb 17, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased1.4MFeb 9, 2026
MILLENNIUM MANAGEMENT LLCReduced1.4MFeb 17, 2026
GEODE CAPITAL MANAGEMENT, LLCReduced1.4MMay 15, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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