CIEN
CIENA CORP
Telephone & Telegraph ApparatusNYSELarge accelerated filer
Total Trades
227
Buys
0
Sells
227
Largest Trade
$1M+
Insiders
16
Institutional Funds
727
Inst. Value
$1M+
Activist Filings
12
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Phipps Jason | SVP Global Sales a… | SELL | $100K–$500K | 4K | $47.30 | Oct 4, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $47.32 | Oct 4, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $48.79 | Sep 19, 2023 |
| McFeely Scott | SVP | SELL | $50K–$100K | 2K | $48.90 | Sep 19, 2023 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $48.90 | Sep 19, 2023 |
| Cumello Joseph | SVP | SELL | $50K–$100K | 1K | $48.90 | Sep 19, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $48.79 | Sep 5, 2023 |
| McFeely Scott | SVP | SELL | $15K–$50K | 500 | $50.00 | Sep 1, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $41.92 | Aug 17, 2023 |
| McFeely Scott | SVP | SELL | $50K–$100K | 2K | $41.76 | Aug 16, 2023 |
| Cumello Joseph | SVP | SELL | $50K–$100K | 1K | $41.76 | Aug 16, 2023 |
| PETRIK ANDREW C | VP, CONTROLLER | SELL | $15K–$50K | 536 | $41.76 | Aug 16, 2023 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $41.76 | Aug 16, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $42.11 | Aug 3, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $41.68 | Jul 19, 2023 |
| McFeely Scott | SVP | SELL | $50K–$100K | 2K | $41.20 | Jul 19, 2023 |
| Cumello Joseph | SVP | SELL | $15K–$50K | 1K | $41.20 | Jul 19, 2023 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $42.26 | Jul 18, 2023 |
| PETRIK ANDREW C | VP, CONTROLLER | SELL | $15K–$50K | 1K | $42.26 | Jul 18, 2023 |
| Phipps Jason | SVP Global Sales a… | SELL | $100K–$500K | 4K | $42.59 | Jul 5, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $42.48 | Jul 5, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $44.29 | Jun 20, 2023 |
| McFeely Scott | SVP | SELL | $50K–$100K | 2K | $44.09 | Jun 20, 2023 |
| PETRIK ANDREW C | VP, CONTROLLER | SELL | $15K–$50K | 1K | $44.09 | Jun 20, 2023 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $44.09 | Jun 20, 2023 |
| PETRIK ANDREW C | VP, CONTROLLER | SELL | $15K–$50K | 1K | $43.50 | May 16, 2023 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $43.50 | May 16, 2023 |
| McFeely Scott | SVP | SELL | $50K–$100K | 2K | $43.50 | May 16, 2023 |
| McFeely Scott | SVP | SELL | $100K–$500K | 3K | $50.77 | Apr 19, 2023 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $50.77 | Apr 19, 2023 |
| PETRIK ANDREW C | VP, CONTROLLER | SELL | $50K–$100K | 1K | $51.73 | Apr 17, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $49.37 | Mar 27, 2023 |
| McFeely Scott | SVP | SELL | $100K–$500K | 3K | $49.86 | Mar 17, 2023 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $49.82 | Mar 17, 2023 |
| PETRIK ANDREW C | VP, CONTROLLER | SELL | $15K–$50K | 1K | $49.82 | Mar 17, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $51.16 | Mar 7, 2023 |
| McFeely Scott | SVP | SELL | $15K–$50K | 500 | $50.00 | Mar 2, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $47.76 | Feb 27, 2023 |
| McFeely Scott | SVP | SELL | $50K–$100K | 2K | $48.68 | Feb 17, 2023 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $48.68 | Feb 17, 2023 |
| PETRIK ANDREW C | VP, CONTROLLER | SELL | $15K–$50K | 1K | $48.68 | Feb 17, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $49.49 | Feb 7, 2023 |
| Cumello Joseph | SVP and General Ma… | SELL | $50K–$100K | 997 | $50.73 | Feb 7, 2023 |
| NEVENS THOMAS MICHAEL | Director | SELL | $1M+ | 22K | $74.31 | Feb 1, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $51.07 | Jan 25, 2023 |
| ALEXANDER STEPHEN B | CTO | SELL | $100K–$500K | 4K | $52.50 | Jan 19, 2023 |
| PETRIK ANDREW C | VP, CONTROLLER | SELL | $50K–$100K | 1K | $50.89 | Jan 18, 2023 |
| Rothenstein David M | Sr. VP | SELL | $100K–$500K | 4K | $50.89 | Jan 18, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $52.49 | Jan 11, 2023 |
| MOYLAN JAMES E JR | SVP Finance, CFO | SELL | $100K–$500K | 2K | $51.50 | Jan 4, 2023 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 727 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| STATE STREET CORP | 5.1M | $1M+ | SH |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 2.2M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2M | $1M+ | SH |
| Capital World Investors | 1.9M | $1M+ | SH |
| Jericho Capital Asset Management L.P. | 1.7M | $1M+ | SH |
| Atreides Management, LP | 1.4M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 1.2M | $1M+ | SH |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.1M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 936K | $1M+ | SH |
| Whale Rock Capital Management LLC | 893K | $1M+ | SH |
| NORGES BANK | 812K | $1M+ | SH |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | 734K | $1M+ | SH |
| 1832 Asset Management L.P. | 790K | $1M+ | SH |
| FengHe Fund Management Pte. Ltd. | 661K | $1M+ | SH |
| Assenagon Asset Management S.A. | 514K | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 512K | $1M+ | SH |
| PRIMECAP MANAGEMENT CO/CA/ | 512K | $1M+ | SH |
| Anatole Investment Management Ltd | 502K | $1M+ | SH |
| PRUDENTIAL FINANCIAL INC | 488K | $1M+ | SH |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 473K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G · Jan 21, 2026
7.7%
10.9M shares
SC 13G/A · Dec 4, 2025
10.3%
14.5M shares
SC 13G/A · Apr 17, 2025
9.4%
13.4M shares
SC 13G/A · Nov 12, 2024
15.0%
21.7M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
10.4%
15.0M shares
SC 13G/A · Feb 12, 2024
10.2%
14.7M shares
SC 13G/A · Jan 30, 2024
11.3%
16.3M shares
The Vanguard Group - 23-1945930
SC 13G/A · Jun 9, 2023
10.0%
15.0M shares
SC 13G/A · Jan 26, 2023
11.5%
17.1M shares
SC 13G · Jan 20, 2023
11.5%
17.1M shares
SC 13G/A · Jan 27, 2022
10.0%
15.5M shares
SC 13G/A · Jan 25, 2022
10.0%
15.5M shares