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 | $1M+ | 19K | $59.88 | Apr 3, 2025 |
| Kosaraju Sheela | SVP and General Co… | SELL | $50K–$100K | 1K | $60.51 | Apr 3, 2025 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 3K | $68.88 | Mar 26, 2025 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 7K | $65.18 | Mar 19, 2025 |
| Gage Brodie | SVP Global Product… | SELL | $15K–$50K | 350 | $63.36 | Mar 18, 2025 |
| Kosaraju Sheela | SVP and General Co… | SELL | $100K–$500K | 2K | $85.91 | Jan 17, 2025 |
| SMITH GARY B | President, CEO | SELL | $500K+ | 7K | $85.29 | Jan 17, 2025 |
| Gage Brodie | SVP Global Product… | SELL | $15K–$50K | 350 | $85.91 | Jan 17, 2025 |
| DiPerna Dino | SVP Global R&D | SELL | $100K–$500K | 2K | $85.91 | Jan 17, 2025 |
| Claflin Bruce L. | Director | SELL | $1M+ | 17K | $84.96 | Jan 8, 2025 |
| SMITH GARY B | President, CEO | SELL | $1M+ | 14K | $83.66 | Jan 6, 2025 |
| Phipps Jason | SVP Global Sales a… | SELL | $100K–$500K | 6K | $84.64 | Jan 6, 2025 |
| DiPerna Dino | SVP Global R&D | SELL | $100K–$500K | 3K | $87.64 | Dec 30, 2024 |
| Gage Brodie | SVP Global Product… | SELL | $15K–$50K | 350 | $87.64 | Dec 30, 2024 |
| Cumello Joseph | SVP | SELL | $50K–$100K | 1K | $68.99 | Nov 19, 2024 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $68.99 | Nov 19, 2024 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $67.43 | Oct 16, 2024 |
| Cumello Joseph | SVP | SELL | $50K–$100K | 1K | $67.43 | Oct 16, 2024 |
| Phipps Jason | SVP Global Sales a… | SELL | $100K–$500K | 2K | $61.49 | Oct 1, 2024 |
| Phipps Jason | SVP Global Sales a… | SELL | $100K–$500K | 3K | $48.29 | Jul 3, 2024 |
| DiPerna Dino | SVP Global R&D | SELL | $15K–$50K | 490 | $48.29 | Jul 3, 2024 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $46.05 | Jun 21, 2024 |
| Cumello Joseph | SVP | SELL | $50K–$100K | 1K | $46.05 | Jun 21, 2024 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $47.99 | Jun 5, 2024 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $46.66 | May 3, 2024 |
| Cumello Joseph | SVP | SELL | $100K–$500K | 3K | $45.74 | Apr 17, 2024 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $45.74 | Apr 17, 2024 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $44.80 | Apr 17, 2024 |
| Phipps Jason | SVP Global Sales a… | SELL | $100K–$500K | 3K | $49.61 | Apr 3, 2024 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $49.39 | Apr 3, 2024 |
| DiPerna Dino | SVP Global R&D | SELL | $15K–$50K | 490 | $49.61 | Apr 3, 2024 |
| Gage Brodie | SVP Global Product… | SELL | $15K–$50K | 533 | $49.61 | Apr 3, 2024 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $56.69 | Feb 16, 2024 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 8K | $56.86 | Feb 16, 2024 |
| SMITH GARY B | President, CEO | SELL | $1M+ | 71K | $54.11 | Feb 5, 2024 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $50.56 | Jan 17, 2024 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $49.72 | Jan 17, 2024 |
| DiPerna Dino | SVP Global R&D | SELL | $15K–$50K | 800 | $44.53 | Jan 5, 2024 |
| Gage Brodie | SVP Global Product… | SELL | $15K–$50K | 662 | $44.53 | Jan 5, 2024 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $45.04 | Jan 4, 2024 |
| Phipps Jason | SVP Global Sales a… | SELL | $100K–$500K | 10K | $44.53 | Jan 4, 2024 |
| DiPerna Dino | SVP Global R&D | SELL | $50K–$100K | 2K | $45.96 | Nov 20, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $46.35 | Nov 20, 2023 |
| Cumello Joseph | SVP | SELL | $50K–$100K | 1K | $45.96 | Nov 20, 2023 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $45.96 | Nov 20, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $42.15 | Nov 4, 2023 |
| Cumello Joseph | SVP | SELL | $50K–$100K | 1K | $42.45 | Oct 17, 2023 |
| Rothenstein David M | SVP and Chief Stra… | SELL | $100K–$500K | 4K | $42.45 | Oct 17, 2023 |
| McFeely Scott | SVP | SELL | $50K–$100K | 2K | $42.45 | Oct 17, 2023 |
| SMITH GARY B | President, CEO | SELL | $100K–$500K | 4K | $43.57 | Oct 17, 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