Calix
CALX · NYSE
$36.08+$0.44 (+1.23%)TodayMarket closed ·
Prev close $35.64
Who owns CALX
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 56.0% of CALX’s shares.
- BlackRock Institutional Trust Company, N.A.15.8%
- Russo (Carl E)9.0%
- Vanguard Portfolio Management, LLC8.9%
- AllianceBernstein L.P.5.2%
- Next 6 largest institutions17.2%
- All other shareholders44.0%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 9.93M | 15.78% |
| Russo (Carl E) | 5.64M | 8.96% |
| Vanguard Portfolio Management, LLC | 5.59M | 8.88% |
| AllianceBernstein L.P. | 3.25M | 5.16% |
| State Street Investment Management (US) | 2.92M | 4.63% |
| Vanguard Capital Management, LLC | 2.59M | 4.11% |
| Geode Capital Management, L.L.C. | 1.48M | 2.35% |
| Westfield Capital Management Company, L.P. | 1.32M | 2.10% |
| Dimensional Fund Advisors, L.P. | 1.31M | 2.08% |
| Acadian Asset Management LLC | 1.24M | 1.97% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Core S&P Small-Cap ETF | 3.54M | 5.62% |
| Vanguard Total Stock Market Index Fund | 1.82M | 2.90% |
| iShares Russell 2000 ETF | 1.53M | 2.43% |
| Vanguard Information Technology Index Fund | 1.52M | 2.41% |
| Vanguard Small-Cap Index Fund | 1.32M | 2.10% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $1.08M (2 trades) of CALX on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Oosterman Wade | Award | 4.97K | — |
| Mukherjee Rajatish | Award | 4.97K | — |
| Peters Kevin Robert | Award | 4.97K | — |
| Makagon Kira | Award | 4.97K | — |
| Russo Carl | Award | 4.97K | — |
| BERRY MICHAEL J | Award | 4.97K | — |
| CRUSCO KATHLEEN M | Award | 4.97K | — |
| BOWICK CHRISTOPHER J | Award | 4.97K | — |
| Russo Carl | Sale | 4.09K | $178.98K |
| Russo Carl | Sale | 20.91K | $902.62K |
Short interest
Settled Sep 30, 2026
- Shares short
- 5.33M
- Days to cover
- 4.33
- % of shares outstanding
- 8.47%
- Average daily volume
- 1.23M
- Change since last report
- −4.5%
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