Czech National Bank has opened a new $14.9M position in $CIEN, per a new SEC 13F filing. This disclosure reflects the funds' holdings for the 03-31-2026 report period. You can see the fund's full portfolio on Quiver Quantitative, and also track the largest institutional owners of $CIEN.
$CIEN Hedge Fund Activity
We have seen 461 institutional investors add shares of $CIEN stock to their portfolio, and 363 decrease their positions in their most recent quarter.
Here are some of the largest recent moves:
- ELYXIUM WEALTH, LLC added 11,749,306 shares (+inf%) to their portfolio in Q4 2025, for an estimated $2,747,810,194
- JPMORGAN CHASE & CO added 4,401,452 shares (+68.1%) to their portfolio in Q4 2025, for an estimated $1,029,367,579
- CORIENT PRIVATE WEALTH LLC added 2,861,176 shares (+30114.5%) to their portfolio in Q4 2025, for an estimated $669,143,231
- LONE PINE CAPITAL LLC removed 2,006,662 shares (-100.0%) from their portfolio in Q4 2025, for an estimated $469,298,041
- BARROW HANLEY MEWHINNEY & STRAUSS LLC removed 1,684,470 shares (-78.0%) from their portfolio in Q4 2025, for an estimated $393,946,998
- PRICE T ROWE ASSOCIATES INC /MD/ added 1,404,132 shares (+53.0%) to their portfolio in Q4 2025, for an estimated $328,384,350
- WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC removed 1,342,295 shares (-55.0%) from their portfolio in Q4 2025, for an estimated $313,922,531
To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard.
$CIEN Insider Trading Activity
$CIEN insiders have traded $CIEN stock on the open market 51 times in the past 6 months. Of those trades, 0 have been purchases and 51 have been sales.
Here’s a breakdown of recent trading of $CIEN stock by insiders over the last 6 months:
- GARY B SMITH (President, CEO) has made 0 purchases and 12 sales selling 135,305 shares for an estimated $31,688,735.
- JASON PHIPPS (SVP Global Sales and Marketing) has made 0 purchases and 16 sales selling 43,397 shares for an estimated $14,321,893.
- DAVID M ROTHENSTEIN (SVP and Chief Strategy Officer) has made 0 purchases and 6 sales selling 15,000 shares for an estimated $3,618,152.
- JOSEPH CUMELLO (SVP, General Mgr. Blue Planet) has made 0 purchases and 2 sales selling 13,702 shares for an estimated $3,441,546.
- PATRICK GALLAGHER sold 11,618 shares for an estimated $2,642,486
- BRODIE GAGE (SVP Global Products & Supply) has made 0 purchases and 4 sales selling 6,011 shares for an estimated $2,226,916.
- THOMAS MICHAEL NEVENS sold 8,554 shares for an estimated $1,921,741
- DINO DIPERNA (SVP Global R&D) has made 0 purchases and 6 sales selling 8,270 shares for an estimated $1,842,322.
- SHEELA KOSARAJU (SVP and General Counsel) has made 0 purchases and 3 sales selling 4,142 shares for an estimated $1,323,568.
To track insider transactions, check out Quiver Quantitative's insider trading dashboard.
$CIEN Congressional Stock Trading
Members of Congress have traded $CIEN stock 4 times in the past 6 months. Of those trades, 1 have been purchases and 3 have been sales.
Here’s a breakdown of recent trading of $CIEN stock by members of Congress over the last 6 months:
- REPRESENTATIVE LISA C. MCCLAIN has traded it 4 times. They made 1 purchase worth up to $15,000 on 10/30 and 3 sales worth up to $45,000 on 10/31, 10/30, 10/15.
To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard.
$CIEN Analyst Ratings
Wall Street analysts have issued reports on $CIEN in the last several months. We have seen 3 firms issue buy ratings on the stock, and 0 firms issue sell ratings.
Here are some recent analyst ratings:
- Rosenblatt issued a "Buy" rating on 12/12/2025
- Stifel issued a "Buy" rating on 12/09/2025
- Citigroup issued a "Buy" rating on 11/10/2025
To track analyst ratings and price targets for $CIEN, check out Quiver Quantitative's $CIEN forecast page.
$CIEN Price Targets
Multiple analysts have issued price targets for $CIEN recently. We have seen 13 analysts offer price targets for $CIEN in the last 6 months, with a median target of $350.0.
Here are some recent targets:
- Ruben Roy from Stifel set a target price of $430.0 on 03/23/2026
- Sean O'Loughlin from TD Cowen set a target price of $425.0 on 03/12/2026
- Tal Liani from B of A Securities set a target price of $355.0 on 03/06/2026
- Atif Malik from Citigroup set a target price of $345.0 on 03/06/2026
- Meta Marshall from Morgan Stanley set a target price of $286.0 on 03/06/2026
- Tim Long from Barclays set a target price of $372.0 on 03/06/2026
- Dave Kang from B. Riley Securities set a target price of $283.0 on 03/06/2026
Note that there may be inaccuracies in these estimates due to filing errors by the funds, parsing errors by us, or other anomalies.
Check out Quiver Quantitative's $CIEN ticker page for more data.
