Ciena Corporation
Ciena Corporation (CIEN) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · CIEN · as of Sep 30, 2024
Ownership Breakdown
490
Institutional Holders
▲ 14 vs Q2
$8.76B
Total Inst. Value
▲ $2.02B vs Q2
141.55M
Shares Outstanding
freeFloat 99.53%
142.20M
13F Shares Held
▲ 2.19M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
CIEN largest shareholders · institutional ownership
Q3 2024 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
FMR LLC telephone & telegraph apparatus | 21.66M | 14.97% | 14.97% | $1.33T | Nov 13, 2024 | ▲ 108.4K |
BLACKROCK, INC. telephone & telegraph apparatus | 16.15M | 11.16% | 11.16% | $994.78B | Nov 13, 2024 | NEW |
VANGUARD GROUP INC telephone & telegraph apparatus | 15.18M | 10.49% | 10.49% | $934.73B | Nov 13, 2024 | ▲ 200.8K |
BARROW HANLEY MEWHINNEY & STRAUSS LLC telephone & telegraph apparatus | 5.22M | 3.61% | 3.61% | $321.47B | Nov 13, 2024 | ▼ 178.1K |
STATE STREET CORP telephone & telegraph apparatus | 4.44M | 3.07% | 3.07% | $273.43B | Nov 14, 2024 | ▲ 53.1K |
BNP PARIBAS ASSET MANAGEMENT HOLDING S.A. telephone & telegraph apparatus | 4.30M | 2.97% | 2.97% | $265.13B | Nov 8, 2024 | ▼ 643.0K |
BANK OF AMERICA CORP /DE/ telephone & telegraph apparatus | 3.18M | 2.20% | 2.20% | $195.67B | Nov 14, 2024 | ▲ 692.0K |
SLATE PATH CAPITAL LP telephone & telegraph apparatus | 2.86M | 1.97% | 1.97% | $175.86B | Nov 14, 2024 | ▲ 2.86M |
THRIVENT FINANCIAL FOR LUTHERANS telephone & telegraph apparatus | 2.72M | 1.88% | 1.88% | $167.28B | Nov 7, 2024 | ▼ 113.4K |
FIL LTD telephone & telegraph apparatus | 2.68M | 1.85% | 1.85% | $165.32B | Nov 13, 2024 | ▼ 482.4K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2024 vs prior quarter
Q3 2024
23
Increased
+8.84M shares6
New Positions
first time holders20
Decreased
−6.97M shares0
Sold Out
fully exitedNet shares change (top 50)
+1.88M
+8.84M / −6.97M
Net new holders
+9
6 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
CIEN insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
0
Buy transactions
27
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
SMITH GARY B President, CEO | Jun 1, 2026 | Sale | 2,952 | $565.92 | $1.67M | 269.6K | Form 4 ↗ |
SMITH GARY B President, CEO | May 15, 2026 | Sale | 2,952 | $562.05 | $1.66M | 272.5K | Form 4 ↗ |
Rothenstein David M SVP and Chief Strategy Officer | May 15, 2026 | Sale | 2,500 | $562.39 | $1.41M | 190.1K | Form 4 ↗ |
Gage Brodie SVP Global Products & Supply | May 15, 2026 | Sale | 1,200 | $570.65 | $684.8K | 43.9K | Form 4 ↗ |
SMITH GARY B President, CEO | May 1, 2026 | Sale | 2,952 | $537.74 | $1.59M | 275.5K | Form 4 ↗ |
SMITH GARY B President, CEO | Apr 15, 2026 | Sale | 2,952 | $467.47 | $1.38M | 278.4K | Form 4 ↗ |
Rothenstein David M SVP and Chief Strategy Officer | Apr 15, 2026 | Sale | 2,500 | $467.65 | $1.17M | 192.6K | Form 4 ↗ |
Gage Brodie SVP Global Products & Supply | Apr 15, 2026 | Sale | 1,200 | $471.79 | $566.1K | 45.1K | Form 4 ↗ |
DiPerna Dino SVP Global R&D | Apr 15, 2026 | Sale | 1,322 | $471.79 | $623.7K | 44.0K | Form 4 ↗ |
DiPerna Dino SVP Global R&D | Apr 15, 2026 | Sale | 1,507 | $471.79 | $711.0K | 42.5K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Ciena Corporation (CIEN) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 0.47%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of Ciena Corporation is FMR LLC, holding approximately 21.66 million shares — equal to 14.97% of outstanding shares — as of September 30, 2024.
A total of 490 institutional investors currently hold CIEN stock, with a combined institutional value of approximately $8.76 billion as of the most recent 13F filing period.
Frequently asked questions
CIEN ownershipCiena Corporation (CIEN) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is FMR LLC with a 14.97% stake. Company insiders hold 0.47%. Data sourced from SEC Form 13F as of September 30, 2024.