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CALXCommunication ServicesCommon Stock

Calix, Inc

Held by 5 tracked managers as of Q2 2026 · CUSIP ⓘCUSIP: A 9-character ID for one specific security - one share class of one company, or one bond. Tickers can change and can mean different things in different countries; a CUSIP always identifies exactly the same security, which is why filings use it. Guide 13100M509 · Sector ⓘGICS sectors: The 11-sector system most investors know (Global Industry Classification Standard): Technology, Health Care, Financials and so on. This site assigns each company a GICS-style sector from its SIC code, with a few hand corrections, so sector pages match the names investors expect. Guide

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In plain English: 5 of the investors we track own this stock. In the latest quarter, 4 of them bought more of it and 4 sold some or all of theirs. That tells you what they did last quarter — not what the stock will do next.

Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer

Managers holding
5
-3 vs last quarter (like-for-like)
Total value held
$133.18M
Across tracked managers
Average weight ⓘOn average, how big this stock is in the portfolios that own it (its share of each manager's reported portfolio value).
0.0%
Of each manager's book
QoQ value ⓘLike-for-like: only managers that filed both quarters are compared, so a manager filing late (or confidentially) does not look like buying or selling. Includes price changes.
-$42.03M
-24.0% vs last quarter
Net shares bought
-7.8K
Est. net flow -$6.34M
Quarter activity
4 bought · 4 sold
0 new · 3 sold out

Tracked capital in this stock

Total value held (area) and number of managers (line). Dips can mean a large holder filed that quarter confidentially (e.g. Norges Bank in Q1/Q3).

Chart: Tracked capital in this stock

Aggregate buying and selling

Net share change reported each quarter

Chart: Aggregate buying and selling

Who owns CALX?

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Who owns CALX? — Q2 2026

Holders ranked by position size, with each one's quarter-over-quarter change.

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

# Manager Fund Shares Value ↓ % of their portfolio QoQ Δ shares Δ shares % Est. Δ value ⓘChange in shares × this quarter's price
1 Ken Griffin Citadel Advisors 1.21M $45.11M 0.0% Added +780.6K +182.3% +$29.13M
2 Two Sigma Two Sigma Investments 703.91K $26.27M 0.0% Added +542.5K +336.0% +$20.24M
3 Israel Englander Millennium Management 698.62K $26.07M 0.0% Reduced -1.2M -63.3% -$44.98M
4 Jim Simons Renaissance Technologies 548.12K $20.46M 0.0% Added +4.7K +0.9% +$175.40K
5 David Shaw D.E. Shaw & Co. 409.08K $15.27M 0.0% Added +388.0K +1840.9% +$14.48M

Sold out completely this quarter

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

Manager Fund Shares sold Value last quarter ↓
Steve Cohen Point72 Asset Management -513.8K $25.17M
Fred Alger Fred Alger Management -4.3K $209.43K
Barrow Hanley Barrow Hanley Mewhinney & Strauss -74 $3.62K

Politician trades

Politician trades in CALX

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

No politician trades match these filters.