William Blair Investment Management, LLC Ciena Corp Transaction History
William Blair Investment Management, LLC
- $35.8 Billion
- Q3 2025
A detailed history of William Blair Investment Management, LLC transactions in Ciena Corp stock. As of the latest transaction made, William Blair Investment Management, LLC holds 2,440,888 shares of CIEN stock, worth $468 Million. This represents 0.99% of its overall portfolio holdings.
Number of Shares
2,440,888
Previous 2,708,540
9.88%
Holding current value
$468 Million
Previous $220 Million
61.41%
% of portfolio
0.99%
Previous 0.63%
Shares
8 transactions
Others Institutions Holding CIEN
# of Institutions
779Shares Held
121MCall Options Held
2.98MPut Options Held
1.22M-
Black Rock Inc. New York, NY15.6MShares$2.99 Billion0.02% of portfolio
-
Vanguard Group Inc Valley Forge, PA15.1MShares$2.89 Billion0.03% of portfolio
-
Jpmorgan Chase & CO New York, NY6.46MShares$1.24 Billion0.06% of portfolio
-
State Street Corp Boston, MA4.35MShares$834 Million0.02% of portfolio
-
Bank Of America Corp Charlotte, NC3.13MShares$600 Million0.03% of portfolio
About CIENA CORP
- Ticker CIEN
- Exchange NYSE
- Sector Technology
- Industry Communication Equipment
- Shares Outstandng 148,142,000
- Market Cap $28.4B
- Description
- Ciena Corporation provides network hardware, software, and services that support the transport, routing, switching, aggregation, service delivery, and management of video, data, and voice traffic on communications networks worldwide. The company's Networking Platforms segment offers hardware networking products and solutions that optimized for t...