CIENA CORP (CIEN): Institutional Ownership
Hedge funds and institutional managers reporting a position in CIEN · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.
Reported Holders
31
13F filers
Aggregate Value
$1.1B
Across holders
Last Price
$479.50
2026-06-26
Sector
Information Technology
GICS
Holder activity10 new5 added16 reduced
| Manager⇅ | Type⇅ | Shares⇅ | Market Value▼ | % of Total⇅ | % of Portfolio⇅ | Action⇅ | QoQ Change⇅ | Quarter⇅ |
|---|---|---|---|---|---|---|---|---|
| LONE PINE CAPITAL LLC CIK 0001061165 | Hedge Fund | 810K | $314.3M | 27.5% | 2.5% | New | — | Q1 2026 |
| PRIMECAP MANAGEMENT CO/CA/ CIK 0000763212 | Institutional Manager | 438K | $170.1M | 14.9% | 0.1% | Reduced | $-28.6M | Q1 2026 |
| BALYASNY ASSET MANAGEMENT LLC CIK 0001218710 | Hedge Fund | 323K | $125.6M | 11.0% | 0.2% | Reduced | $-45.3M | Q1 2026 |
| Whale Rock Capital Management LLC CIK 0001387322 | Hedge Fund | 231K | $89.8M | 7.9% | 1.2% | Reduced | $-257.1M | Q1 2026 |
| Senvest Management, LLC CIK 0001328785 | Hedge Fund | 173K | $67.1M | 5.9% | 2.2% | Reduced | $-43.7M | Q1 2026 |
| Bridgewater Associates, LP CIK 0001350694 | Hedge Fund | 144K | $55.8M | 4.9% | 0.2% | Reduced | $-26.7M | Q1 2026 |
| Gotham Asset Management, LLC CIK 0001510387 | Hedge Fund | 121K | $47.1M | 4.1% | 0.1% | Reduced | $-5.8M | Q1 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. CIK 0001165408 | Hedge Fund | 116K | $45.1M | 4.0% | 0.1% | New | — | Q1 2026 |
| RENAISSANCE TECHNOLOGIES LLC CIK 0001037389 | Hedge Fund | 98K | $38.0M | 3.3% | 0.1% | Added | +$25.3M | Q1 2026 |
| STEADFAST CAPITAL MANAGEMENT LP CIK 0001214822 | Hedge Fund | 82K | $31.7M | 2.8% | 1.1% | Reduced | $-87.9M | Q1 2026 |
| Qube Research & Technologies Ltd CIK 0001729829 | Hedge Fund | 132K | $31.0M | 2.7% | 0.0% | New | — | Q4 2025 |
| Rokos Capital Management LLP CIK 0001666335 | Hedge Fund | 66K | $25.8M | 2.3% | 0.2% | Reduced | $-56.0M | Q1 2026 |
| MARSHALL WACE, LLP CIK 0001318757 | Hedge Fund | 66K | $25.6M | 2.2% | 0.0% | Added | +$23.9M | Q1 2026 |
| Schonfeld Strategic Advisors LLC CIK 0001665241 | Hedge Fund | 109K | $25.6M | 2.2% | 0.1% | New | — | Q4 2025 |
| Verition Fund Management LLC CIK 0001454027 | Hedge Fund | 42K | $16.3M | 1.4% | 0.1% | Added | +$9.2M | Q1 2026 |
| Holocene Advisors, LP CIK 0001700574 | Hedge Fund | 26K | $9.9M | 0.9% | 0.0% | Reduced | $-157.1M | Q1 2026 |
| Walleye Capital LLC CIK 0001758720 | Hedge Fund | 14K | $5.6M | 0.5% | 0.0% | Reduced | $-4.1M | Q1 2026 |
| AQR CAPITAL MANAGEMENT LLC CIK 0001167557 | Hedge Fund | 13K | $4.8M | 0.4% | 0.0% | Reduced | $-526.4M | Q1 2026 |
| Brevan Howard Capital Management LP CIK 0001512857 | Hedge Fund | 11K | $4.1M | 0.4% | 0.0% | Added | +$878K | Q1 2026 |
| CAXTON ASSOCIATES LLP CIK 0002051323 | Hedge Fund | 11K | $2.5M | 0.2% | 0.0% | New | — | Q4 2025 |
New
Hedge Fund
$314.3M· 27.5% of total· 2.5% port· 810K sh· — QoQ· Q1 2026
Reduced
Institutional Manager
$170.1M· 14.9% of total· 0.1% port· 438K sh· $-28.6M QoQ· Q1 2026
Reduced
Hedge Fund
$125.6M· 11.0% of total· 0.2% port· 323K sh· $-45.3M QoQ· Q1 2026
Reduced
Hedge Fund
$89.8M· 7.9% of total· 1.2% port· 231K sh· $-257.1M QoQ· Q1 2026
Reduced
Hedge Fund
$67.1M· 5.9% of total· 2.2% port· 173K sh· $-43.7M QoQ· Q1 2026
Reduced
Hedge Fund
$55.8M· 4.9% of total· 0.2% port· 144K sh· $-26.7M QoQ· Q1 2026
Reduced
Hedge Fund
$47.1M· 4.1% of total· 0.1% port· 121K sh· $-5.8M QoQ· Q1 2026
New
Hedge Fund
$45.1M· 4.0% of total· 0.1% port· 116K sh· — QoQ· Q1 2026
Added
Hedge Fund
$38.0M· 3.3% of total· 0.1% port· 98K sh· +$25.3M QoQ· Q1 2026
Reduced
Hedge Fund
$31.7M· 2.8% of total· 1.1% port· 82K sh· $-87.9M QoQ· Q1 2026
New
Hedge Fund
$31.0M· 2.7% of total· 0.0% port· 132K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$25.8M· 2.3% of total· 0.2% port· 66K sh· $-56.0M QoQ· Q1 2026
Added
Hedge Fund
$25.6M· 2.2% of total· 0.0% port· 66K sh· +$23.9M QoQ· Q1 2026
New
Hedge Fund
$25.6M· 2.2% of total· 0.1% port· 109K sh· — QoQ· Q4 2025
Added
Hedge Fund
$16.3M· 1.4% of total· 0.1% port· 42K sh· +$9.2M QoQ· Q1 2026
Reduced
Hedge Fund
$9.9M· 0.9% of total· 0.0% port· 26K sh· $-157.1M QoQ· Q1 2026
Reduced
Hedge Fund
$5.6M· 0.5% of total· 0.0% port· 14K sh· $-4.1M QoQ· Q1 2026
Reduced
Hedge Fund
$4.8M· 0.4% of total· 0.0% port· 13K sh· $-526.4M QoQ· Q1 2026
Added
Hedge Fund
$4.1M· 0.4% of total· 0.0% port· 11K sh· +$878K QoQ· Q1 2026
New
Hedge Fund
$2.5M· 0.2% of total· 0.0% port· 11K sh· — QoQ· Q4 2025
Reduced
Hedge Fund
$1.4M· 0.1% of total· 0.0% port· 3K sh· $-6.8M QoQ· Q1 2026
Reduced
Institutional Manager
$1.0M· 0.1% of total· 0.0% port· 3K sh· $-14.9M QoQ· Q1 2026
New
Hedge Fund
$858K· 0.1% of total· 0.0% port· 11K sh· — QoQ· Q2 2025
Reduced
Hedge Fund
$466K· 0.0% of total· 0.0% port· 1K sh· $-104.2M QoQ· Q1 2026
Reduced
Hedge Fund
$464K· 0.0% of total· 0.0% port· 1K sh· $-30.5M QoQ· Q1 2026
New
Hedge Fund
$418K· 0.0% of total· 0.0% port· 724 sh· — QoQ· Q1 2026
New
Hedge Fund
$274K· 0.0% of total· 0.0% port· 1K sh· — QoQ· Q4 2025
New
Hedge Fund
$257K· 0.0% of total· 0.0% port· 1K sh· — QoQ· Q4 2025
New
Institutional Manager
$237K· 0.0% of total· 0.0% port· 610 sh· — QoQ· Q1 2026
Reduced
Hedge Fund
$134K· 0.0% of total· 0.0% port· 344 sh· $-11.5M QoQ· Q1 2026
Added
Hedge Fund
$9K· 0.0% of total· 0.0% port· 24 sh· +$2K QoQ· Q1 2026
1–20 of 31
1 / 2