Stock profile

CIENA CORP (CIEN)

CIEN · Latest close $385.71 as of Oct 2, 2026 · 13F data as of Jun 30, 2026 (2026 Q2)
Latest close
$385.71
As of Oct 2, 2026
Tracked funds holding
2 of 83
2026 Q2 13F filings
Opened / added
0 / 0
vs previous quarter
Trimmed / exited
2
vs previous quarter

Super-investor holdings · 2026 Q2

FundPortfolio weightSharesChange vs prev. quarter
Mairs & Power Funds0.01%2,800HELD
First Eagle Investment Management0.00%2,000TRIMMED (-23.1%)

Source: SEC Form 13F filings for the quarter ended Jun 30, 2026. Change labels compare each fund’s 2026 Q2 filing with its previous filing. 13F filings cover long positions only and arrive up to 45 days after quarter-end.

Exited this quarter: Lone Pine Capital.

All institutions · Form 13F

Institutions holding1,236 of 8,857 filers
Long-only filers among them1,224
Change vs 2026 Q1+164 net · 1,083 entered · 919 exited
Shares reported, all filers131,350,168
Reported value, all filers$64.5B

Source: SEC Form 13F data sets — every filer's latest report for the quarter ended Jun 30, 2026, not just the tracked funds above; changes compare with the quarter ended Mar 31, 2026. Share counts and values are summed as reported in the filings (a small number of filers report values in thousands of dollars, so value totals are as-filed sums).

Insider trading · Form 4

0 insiders bought on the open market in the last 90 days (0 purchases, $0), against 23 sales by 10 insiders ($19.4M).

Source: SEC Form 4 filings, as of Oct 3, 2026. Open-market transactions only.

Politician trading · U.S. House

1 House members reported buying (2 purchases vs 0 sales). Bought by Democrats. Latest buy: May 29, 2026.

Source: U.S. House Clerk STOCK Act periodic transaction reports, as of Oct 3, 2026. Reported amounts are ranges, and reports can arrive up to 45 days after the trade. Senate reports are not included yet.

Screens & lenses

Politicians

· Bought by Members — Last 6 months: bought by a U.S. House member

Financial Screens

· Graham — Sound finances and a long run of profits

· Earnings Quality (Cash Conversion) — Profits that actually come back as cash

Chart Signals

· Monthly Uptrend — Price above its 12-month moving average

Key figures

· Graham — Current ratio: 2.73 · Straight profitable years: 7 · Debt ratio: 1.15 · Latest net income: $123.3M

· Earnings Quality (Cash Conversion) — Cash conversion (3-yr avg): 4.44 · Operating cash flow: $806.1M · Net income: $123.3M

· Bought by Members — Members buying: 1 · Buy txns: 2 · Sell txns: 0 · Latest buy: May 29, 2026

Financial screens are computed from SEC company financial statements; red-flag models are screens, not verdicts — see Methodology.

Signal record

· Politician BEST — appeared in 1 of the last 20 quarterly lists; latest 2026 Q2, ranked #46 of 50.

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