CALX
Calix (CALX)
NYSE
$36.05-$1.42 (-3.79%)
Price as of Jun 23, 2026 4:13 PM EDT
  • $2.4B
    Market Cap
  • -22.61%
    1-Year Change
  • Software - Infrastructure
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK FUNDING, INC. /DE
17.78%
11.3M
+530,262 (+4.68%)
Dec 31, 2024
BLACKROCK, INC.
17.49%
11.2M
-309,538 (-2.78%)
Mar 31, 2026
BLACKROCK INC.
16.75%
10.7M
-262,194 (-2.45%)
Jun 30, 2024
VANGUARD GROUP INC
13.02%
8.3M
-186,628 (-2.25%)
Dec 31, 2025
N/A
8.68%
5.5M
+5.5M (+100.00%)
Mar 31, 2026
ALLIANCEBERNSTEIN L.P.
5.10%
3.3M
+1.8M (+55.02%)
Mar 31, 2026
STATE STREET CORP
4.08%
2.6M
+239,368 (+9.20%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions1.0B (76.04%)
  • Mutual Funds311.7M (23.37%)
  • Insiders7.8M (0.59%)
  • Other0 (0.00%)

Insider Transactions

  • 0.59% (7.8M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 4
    Number of InsiderSelling (last 12 months)
  • $335.3M
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Russo Carl
Gift
Apr 08, 2026
$0.00
40,000
$0.00
4.0M
Russo Carl
Award
Mar 30, 2026
$0.00
11,753
$0.00
11,753
Russo Carl
Exempt
Feb 25, 2026
$0.00
10,000
$0.00
560,000
Russo Carl
Exempt
Feb 25, 2026
$126,300.00
10,000
$12.63
4.0M
Durocher John
COO
Award
Feb 14, 2026
$19,896.36
439
$45.32
2,367
SINDELAR CORY
Chief Financial Officer
Award
Feb 14, 2026
$19,896.36
439
$45.32
103,994
Eleniak Shane Todd Marshall
Chief Product Officer
Award
Feb 12, 2026
$0.00
195,000
$0.00
195,000
Durocher John
COO
Award
Feb 12, 2026
$0.00
195,000
$0.00
195,000
SINDELAR CORY
Chief Financial Officer
Award
Feb 12, 2026
$0.00
170,000
$0.00
170,000
Russo Carl
Sell
Feb 03, 2026
$632,526.82
13,477
$46.93
1.7M
Russo Carl
Sell
Feb 03, 2026
$549,163.13
11,523
$47.66
1.7M
SINDELAR CORY
Chief Financial Officer
Exempt
Feb 02, 2026
$0.00
27,000
$0.00
148,000
SINDELAR CORY
Chief Financial Officer
Exempt
Feb 02, 2026
$136,350.00
27,000
$5.05
103,555
Russo Carl
Award
Jan 02, 2026
$0.00
11,663
$0.00
11,663
Russo Carl
Exempt
Nov 24, 2025
$0.00
10,000
$0.00
580,000
Russo Carl
Exempt
Nov 24, 2025
$126,300.00
10,000
$12.63
4.0M
Russo Carl
Exempt
Nov 17, 2025
$0.00
10,000
$0.00
590,000
Russo Carl
Exempt
Nov 17, 2025
$126,300.00
10,000
$12.63
4.0M
Eleniak Shane Todd Marshall
Chief Product Officer
Exempt
Nov 10, 2025
$0.00
24,000
$0.00
24,000
Eleniak Shane Todd Marshall
Chief Product Officer
Exempt
Nov 10, 2025
$192,720.00
24,000
$8.03
24,000
Eleniak Shane Todd Marshall
Chief Product Officer
Sell
Nov 10, 2025
$1.5M
24,000
$64.14
0
SINDELAR CORY
Chief Financial Officer
Exempt
Nov 06, 2025
$0.00
50,000
$0.00
175,000
SINDELAR CORY
Chief Financial Officer
Exempt
Nov 06, 2025
$252,500.00
50,000
$5.05
126,555
SINDELAR CORY
Chief Financial Officer
Sell
Nov 06, 2025
$3.3M
50,000
$65.30
76,555
Eleniak Shane Todd Marshall
Chief Product Officer
Exempt
Nov 04, 2025
$0.00
50,000
$0.00
0
Eleniak Shane Todd Marshall
Chief Product Officer
Exempt
Nov 04, 2025
$350,000.00
50,000
$7.00
50,000
Eleniak Shane Todd Marshall
Chief Product Officer
Sell
Nov 04, 2025
$3.3M
50,000
$65.34
0
Weening Michael
President & CEO
Exempt
Nov 03, 2025
$0.00
74,000
$0.00
0
Weening Michael
President & CEO
Exempt
Nov 03, 2025
$580,160.00
74,000
$7.84
90,117
Weening Michael
President & CEO
Sell
Nov 03, 2025
$5.0M
74,000
$67.42
16,117