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 |
|---|---|---|---|---|---|---|
| SMITH GARY B | President, CEO | SELL | $1M+ | 3K | $354.64 | Mar 4, 2026 |
| SMITH GARY B | President, CEO | SELL | $500K+ | 3K | $265.60 | Feb 4, 2026 |
| Kosaraju Sheela | SVP and General Co… | SELL | $50K–$100K | 382 | $246.23 | Jan 20, 2026 |
| SMITH GARY B | President, CEO | SELL | $500K+ | 3K | $247.65 | Jan 20, 2026 |
| Phipps Jason | SVP Global Sales a… | SELL | $1M+ | 21K | $247.89 | Jan 20, 2026 |
| DiPerna Dino | SVP Global R&D | SELL | $1M+ | 5K | $246.23 | Jan 16, 2026 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $500K+ | 3K | $219.28 | Jan 13, 2026 |
| GALLAGHER PATRICK | Director | SELL | $1M+ | 12K | $227.45 | Jan 13, 2026 |
| Cumello Joseph | SVP | SELL | $1M+ | 12K | $229.82 | Jan 13, 2026 |
| SMITH GARY B | President, CEO | SELL | $1M+ | 84K | $229.44 | Jan 6, 2026 |
| Kosaraju Sheela | SVP and General Co… | SELL | $100K–$500K | 2K | $241.00 | Jan 6, 2026 |
| SMITH GARY B | President, CEO | SELL | $1M+ | 7K | $233.46 | Dec 29, 2025 |
| Phipps Jason | SVP Global Sales a… | SELL | $100K–$500K | 2K | $143.42 | Dec 18, 2025 |
| NEVENS THOMAS MICHAEL | Director | SELL | $1M+ | 9K | $224.66 | Dec 17, 2025 |
| Gage Brodie | SVP Global Product… | SELL | $100K–$500K | 550 | $220.84 | Dec 16, 2025 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $500K+ | 3K | $220.84 | Dec 16, 2025 |
| SMITH GARY B | President, CEO | SELL | $1M+ | 7K | $192.61 | Dec 5, 2025 |
| Gage Brodie | SVP Global Product… | SELL | $15K–$50K | 111 | $190.80 | Nov 18, 2025 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 3K | $191.72 | Nov 18, 2025 |
| DiPerna Dino | SVP Global R&D | SELL | $100K–$500K | 2K | $190.80 | Nov 18, 2025 |
| SMITH GARY B | President, CEO | SELL | $1M+ | 7K | $209.45 | Nov 12, 2025 |
| SMITH GARY B | President, CEO | SELL | $1M+ | 7K | $190.45 | Nov 5, 2025 |
| Kosaraju Sheela | SVP and General Co… | SELL | $100K–$500K | 2K | $143.42 | Oct 2, 2025 |
| SMITH GARY B | President, CEO | SELL | $1M+ | 7K | $149.88 | Oct 2, 2025 |
| Cumello Joseph | SVP | SELL | $100K–$500K | 2K | $141.14 | Sep 29, 2025 |
| Claflin Bruce L. | Director | SELL | $1M+ | 8K | $140.12 | Sep 26, 2025 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 3K | $132.00 | Sep 17, 2025 |
| Gage Brodie | SVP Global Product… | SELL | $15K–$50K | 350 | $132.00 | Sep 17, 2025 |
| SMITH GARY B | President, CEO | SELL | $500K+ | 7K | $136.20 | Sep 17, 2025 |
| SMITH GARY B | President, CEO | SELL | $500K+ | 7K | $92.93 | Sep 4, 2025 |
| SMITH GARY B | President, CEO | SELL | $500K+ | 7K | $82.23 | Jul 17, 2025 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 3K | $82.21 | Jul 17, 2025 |
| DiPerna Dino | SVP Global R&D | SELL | $50K–$100K | 734 | $82.57 | Jul 16, 2025 |
| Gage Brodie | SVP Global Product… | SELL | $15K–$50K | 350 | $82.57 | Jul 16, 2025 |
| Kosaraju Sheela | SVP and General Co… | SELL | $100K–$500K | 2K | $80.50 | Jul 3, 2025 |
| SMITH GARY B | President, CEO | SELL | $500K+ | 7K | $80.35 | Jul 3, 2025 |
| Phipps Jason | SVP Global Sales a… | SELL | $100K–$500K | 2K | $80.50 | Jul 2, 2025 |
| Cumello Joseph | SVP | SELL | $100K–$500K | 2K | $81.64 | Jul 1, 2025 |
| SMITH GARY B | President, CEO | SELL | $500K+ | 7K | $74.19 | Jun 18, 2025 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 3K | $74.13 | Jun 18, 2025 |
| Gage Brodie | SVP Global Product… | SELL | $15K–$50K | 350 | $72.60 | Jun 18, 2025 |
| SMITH GARY B | President, CEO | SELL | $500K+ | 7K | $80.62 | Jun 4, 2025 |
| SMITH GARY B | President, CEO | SELL | $500K+ | 7K | $79.89 | May 19, 2025 |
| Gage Brodie | SVP Global Product… | SELL | $15K–$50K | 350 | $78.67 | May 16, 2025 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 3K | $79.93 | May 16, 2025 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 7K | $71.90 | May 5, 2025 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 3K | $59.47 | Apr 17, 2025 |
| Gage Brodie | SVP Global Product… | SELL | $15K–$50K | 350 | $58.51 | Apr 17, 2025 |
| DiPerna Dino | SVP Global R&D | SELL | $15K–$50K | 734 | $58.51 | Apr 17, 2025 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 7K | $59.54 | Apr 17, 2025 |
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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