Ciena CORP
$332.73-6.7%
+$30.9B
Net Activity
+77.03% total shares
Institutions Holding
1240
Popularity Rank
#344
Avg Weight
0.20%
Total Value
$68.7B
Market Cap
$48.3B
1240 institutions currently hold CIEN, with 738 net buyers and 503 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
503
Net Buying Institutions
738
Top 5 by Value
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Across its top 20 institutional holders, CIEN's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 6/100, avg. turnover score 42/100).
CIEN ranks #344 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
1240 institutions disclose a position in CIEN, but none treat it as a major bet — even Atreides Management, LP, its most concentrated holder, allocates just 2.4% of its own portfolio to it.
NorthCrest Asset Manangement, LLC has added to its CIEN position for two straight quarters, increasing it by $973.3K to reach $5.3M today.
Assenagon Asset Management S.A. has trimmed its CIEN position for two straight quarters, cutting it by $47.8M while still holding $93.7M.
CIEN is down 6.7% today, but institutions show net buying of $30.9B this quarter — a divergence between today's price move and the underlying institutional flow.
CIEN posted net income of $654.4M over the trailing twelve months, and currently trades at a P/E of 73.9.
+$10.5B
Total Buy Value
$8.0B
Total Sell Value
738
Net Buyers
503
Net Sellers
CIEN
Q2 2026
Top 5 Institutional Movers
CIEN does not currently show a 13F-and-insider convergence signal — its insider confidence score is 0/100, below the threshold this product uses to flag combined buying pressure.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
0
unique buyers
—
buy value
12-Month Buy/Sell Activity
| Action | Insider | Date | Value |
|---|---|---|---|
| Sell | Marc D. Graff | 2026-10-01 | $34K |
| Sell | Sheela Kosaraju | 2026-10-01 | $746K |
| Sell | Jason Phipps | 2026-10-01 | $934K |
| Sell | Gary B Smith | 2026-10-01 | $1.09M |
| Sell | Joseph Cumello | 2026-09-25 | $569K |
| Sell | Bruce L. Claflin | 2026-09-24 | $1.02M |
| Sell | Thomas Michael Nevens | 2026-09-23 | $1.34M |
| Sell | Dino Diperna | 2026-09-16 | $87K |
| Action | Member | Trade Date | Amount |
|---|---|---|---|
| Buy | Alan Armstrong Senate | 2026-03-30 | $1K–$15K |
| Buy | Alan Armstrong Senate | 2026-03-27 | $1K–$15K |
16
Filings (90d)
$15.71M
Total Est. Value
42K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| DAVID ROTHENSTEIN | 2026-10-15 | $899K |
| DINO DIPERNA | 2026-10-15 | $309K |
| BRODIE GAGE | 2026-10-15 | $413K |
| Gary B. Smith | 2026-10-15 | $5.26M |
| SHEELA KOSARAJU | 2026-10-01 | $746K |
| JASON PHIPPS | 2026-10-01 | $934K |
| MARC GRAFF | 2026-10-01 | $34K |
| JOSEPH CUMELLO | 2026-09-25 | $568K |
| THOMAS MICHAEL NEVENS | 2026-09-23 | $1.34M |
| DINO DIPERNA | 2026-09-16 | $87K |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
1
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| JPMORGAN CHASE & CO. | 13G/A | 2026-09-03 | 3.9% |
| FMR LLC | 13G/A | 2026-08-06 | 13.5% |
1
Filings (14d)
On September 3, 2026, Ciena Corporation issued a press release announcing its fiscal third quarter 2026 results (quarter ended August 1, 2026), along with an investor presentation posted on its website. The company also plans to hold an investor call to discuss the results. However, this 8-K filing itself doesn't include specific financial figures — those details are in the attached press release and presentation exhibits.
View Full Filing (SEC EDGAR)171779309
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Access CIEN's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/CIENCLI
npx alphasmo stocks get CIEN