CIEN
CIENA (CIEN)
NYSE
$396.25+$0.46 (+0.12%)
Price as of Aug 21, 2026 7:59 PM EDT
  • $56.0B
    Market Cap
  • 340.70%
    1-Year Change
  • Communication Equipment
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
FMR LLC
13.50%
19.1M
-2.1M (-10.97%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
12.08%
17.1M
+950,030 (+5.56%)
Dec 31, 2024
BLACKROCK INC.
11.03%
15.6M
+230,877 (+1.48%)
Jun 30, 2024
VANGUARD GROUP INC
10.16%
14.4M
-692,023 (-4.81%)
Dec 31, 2025
BLACKROCK, INC.
8.98%
12.7M
-655,293 (-5.15%)
Jun 30, 2026
JPMORGAN CHASE & CO
7.92%
11.2M
+979,560 (+8.74%)
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
6.52%
9.2M
+64,448 (+0.70%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions2.7B (75.47%)
  • Mutual Funds856.5M (24.38%)
  • Insiders5.6M (0.16%)
  • Other0 (0.00%)

Insider Transactions

  • 0.16% (5.6M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 10
    Number of InsiderSelling (last 12 months)
  • $2.6B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
SMITH GARY B
President, CEO
Sell
Aug 17, 2026
$1.3M
2,952
$447.78
246,030
Gage Brodie
SVP Global Products & Supply
Sell
Aug 17, 2026
$527,088.00
1,200
$439.24
38,407
SMITH GARY B
President, CEO
Sell
Aug 03, 2026
$1.1M
2,952
$379.81
248,982
Graff Marc D.
SVP & Chief Financial Officer
In Kind
Aug 01, 2026
$5.4M
14,441
$377.05
112,514
DiPerna Dino
SVP Global R&D
Sell
Jul 15, 2026
$175,617.65
391
$449.15
40,015
Gage Brodie
SVP Global Products & Supply
Sell
Jul 15, 2026
$538,980.00
1,200
$449.15
39,607
Rothenstein David M
SVP and Chief Strategy Officer
Sell
Jul 15, 2026
$1.1M
2,500
$420.91
182,731
DiPerna Dino
SVP Global R&D
Sell
Jul 15, 2026
$175,617.65
391
$449.15
39,624
Kosaraju Sheela
SVP and General Counsel
Sell
Jul 01, 2026
$938,460.60
2,013
$466.20
88,081
Phipps Jason
SVP Global Sales and Marketing
Sell
Jul 01, 2026
$1.2M
2,629
$466.20
62,382
Graff Marc D.
SVP & Chief Financial Officer
Sell
Jul 01, 2026
$58,741.20
126
$466.20
126,955
SMITH GARY B
President, CEO
Sell
Jul 01, 2026
$1.4M
2,952
$468.83
254,886
Cumello Joseph
SVP, General Mgr. Blue Planet
Sell
Jun 26, 2026
$739,599.38
1,586
$466.33
42,872
Graff Marc D.
SVP & Chief Financial Officer
Sell
Jun 24, 2026
$56,619.36
126
$449.36
127,081
Hoffman Grant
SVP Chief Supply Chain Officer
Award
Jun 22, 2026
$0.00
6,517
$0.00
6,517
DiPerna Dino
SVP Global R&D
In Kind
Jun 20, 2026
$87,356.88
204
$428.22
42,256
Kosaraju Sheela
SVP and General Counsel
In Kind
Jun 20, 2026
$70,228.08
164
$428.22
91,943
Gage Brodie
SVP Global Products & Supply
In Kind
Jun 20, 2026
$87,356.88
204
$428.22
42,537
SMITH GARY B
President, CEO
In Kind
Jun 20, 2026
$1.3M
2,985
$428.22
263,620
DiPerna Dino
SVP Global R&D
In Kind
Jun 20, 2026
$190,129.68
444
$428.22
41,812
Kosaraju Sheela
SVP and General Counsel
In Kind
Jun 20, 2026
$311,744.16
728
$428.22
91,215
Cumello Joseph
SVP, General Mgr. Blue Planet
In Kind
Jun 20, 2026
$188,845.02
441
$428.22
45,734
SMITH GARY B
President, CEO
In Kind
Jun 20, 2026
$1.3M
3,102
$428.22
260,518
DiPerna Dino
SVP Global R&D
In Kind
Jun 20, 2026
$312,600.60
730
$428.22
41,082
Kosaraju Sheela
SVP and General Counsel
In Kind
Jun 20, 2026
$247,511.16
578
$428.22
90,637
Gage Brodie
SVP Global Products & Supply
In Kind
Jun 20, 2026
$189,273.24
442
$428.22
42,095
SMITH GARY B
President, CEO
In Kind
Jun 20, 2026
$746,387.46
1,743
$428.22
258,775
DiPerna Dino
SVP Global R&D
In Kind
Jun 20, 2026
$183,278.16
428
$428.22
40,654
Kosaraju Sheela
SVP and General Counsel
In Kind
Jun 20, 2026
$147,735.90
345
$428.22
90,292
Graff Marc D.
SVP & Chief Financial Officer
In Kind
Jun 20, 2026
$85,215.78
199
$428.22
127,207