CALX · Insider trading · 13F holders · Congress trades
Calix Inc (CALX)
Who is buying and selling CALX: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 9
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
CALX at a glance
- No open-market insider purchases or sales of CALX were filed in the last 90 days.
- 9 13F filers hold CALX among their 50 largest positions, worth $105.2M combined. The biggest bets by portfolio weight are Divisar Capital Management LLC (3.4%), Trigran Investments, Inc. (3.0%) and Formula Growth Ltd (1.5%). In their latest 13Fs, 2 managers opened a new position and 4 added to one.
- No member of Congress has disclosed a trade in CALX.
CALX insider trading
No open-market insider purchases or sales of CALX were filed in the last 90 days.
Who owns CALX? Hedge funds and superinvestors
9 13F filers hold CALX among their 50 largest positions, worth $105.2M combined. The biggest bets by portfolio weight are Divisar Capital Management LLC (3.4%), Trigran Investments, Inc. (3.0%) and Formula Growth Ltd (1.5%). In their latest 13Fs, 2 managers opened a new position and 4 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Paradigm Capital Management Inc/nyHedge fund | 1.0% | $37.2M | 997,134 | +29.8% shares | Q2 2026 |
| Trigran Investments, Inc.Hedge fund | 3.0% | $16.5M | 442,008 | New | Q2 2026 |
| Harvey Partners, LLCInstitutional asset manager | 1.1% | $15.7M | 420,500 | -26.6% shares | Q2 2026 |
| Divisar Capital Management LLCHedge fund | 3.4% | $14.7M | 395,163 | +16.2% shares | Q2 2026 |
| Westerly Capital Management, LLCHedge fund | 1.4% | $7.7M | 205,000 | New | Q2 2026 |
| G2 Investment Partners Management LLCHedge fund | 1.1% | $6.0M | 160,000 | -0.3% shares | Q2 2026 |
| Formula Growth LtdHedge fund | 1.5% | $4.3M | 115,000 | +202.6% shares | Q2 2026 |
| Marathon Capital ManagementWealth manager | 0.6% | $3.1M | 89,160 | +6.7% shares | Q3 2026 |
| OV Management LLCInvestment manager | 0.1% | $62K | 1,652 | -0.7% shares | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 1, Q2 2026: 8). Screen CALX in the grand portfolio →
CALX stock trades by members of Congress
No member of Congress has disclosed a trade in CALX.
CALX questions and answers
Are insiders buying CALX stock?
No open-market insider purchases or sales of CALX were filed in the last 90 days.
Which hedge funds own CALX?
9 13F filers hold CALX among their 50 largest positions, worth $105.2M combined. The biggest bets by portfolio weight are Divisar Capital Management LLC (3.4%), Trigran Investments, Inc. (3.0%) and Formula Growth Ltd (1.5%). In their latest 13Fs, 2 managers opened a new position and 4 added to one.
Has Congress traded CALX?
No member of Congress has disclosed a trade in CALX.
Who is the largest holder of CALX?
Among 13F filers, Paradigm Capital Management Inc/ny reports the largest CALX position, $37.2M (997,134 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Divisar Capital Management LLC's: 3.4% of its portfolio.
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