Which hedge funds own CIEN? CIENA CORP, Q2 2026 13F holders
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13 of the hedge funds tracked by WhaleCreep disclosed a position in CIEN (CIENA CORP) in their Q2 2026 13F filings, worth $895.8m in total. The largest holder by portfolio weight is Atreides Management at 3.0% of its book. 1 manager opened a new position this quarter: Discovery Capital Management. 4 exited: Holocene Advisors, Lone Pine Capital, Steadfast Capital Management.
13tracked managers holding
1opened this quarter
4exited this quarter
Which hedge funds hold CIEN? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Atreides Management | Q2 2026 | 3.0% | $337.8m | 688,521 | 2% | added |
| Bridgewater Associates | Q2 2026 | 0.2% | $49.6m | 101,038 | -30% | reduced |
| Point72 Asset Management LP | Q2 2026 | 0.2% | $103.3m | 210,516 | -61% | reduced |
| Renaissance Technologies LLC | Q2 2026 | 0.1% | $90.6m | 184,774 | 89% | added |
| Brevan Howard Capital Management | Q2 2026 | 0.1% | $7.4m | 15,174 | 17% | added |
| Discovery Capital Management | Q2 2026 | 0.1% | $2.0m | 4,009 | – | new |
| Citadel Advisors | Q2 2026 | 0.1% | $105.0m | 214,064 | 52% | added |
| Millennium Management | Q2 2026 | 0.1% | $81.6m | 166,420 | 83% | added |
| Woodline Partners | Q2 2026 | 0.0% | $15.1m | 30,862 | 12% | added |
| First Manhattan | Q2 2026 | 0.0% | $15.9m | 32,396 | -4% | reduced |
| D. E. Shaw & Co | Q2 2026 | 0.0% | $65.3m | 133,195 | 1395% | added |
| Marshall Wace | Q2 2026 | 0.0% | $22.1m | 45,101 | -64% | reduced |
| Ancora Advisors | Q2 2026 | 0.0% | $8.8k | 18 | -25% | reduced |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Holocene Advisors | 0.1% | $9.9m |
| Lone Pine Capital | 8.4% | $314.3m |
| Steadfast Capital Management | 4.4% | $31.7m |
| Whale Rock Capital Management | 9.9% | $89.8m |
How has hedge fund ownership of CIEN changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 13 | $895.8m |
| Q1 2026 | 17 | $1.2bn |
| Q4 2025 | 10 | $894.5m |
| Q3 2025 | 7 | $843.2m |
| Q2 2025 | 7 | $439.1m |
| Q1 2025 | 5 | $192.5m |
| Q4 2024 | 5 | $39.8m |
| Q3 2024 | 6 | $208.9m |
| Q2 2024 | 6 | $201.2m |
| Q1 2024 | 4 | $171.4m |
| Q4 2023 | 6 | $210.2m |
| Q3 2023 | 6 | $131.2m |
| Q2 2023 | 5 | $128.4m |
| Q1 2023 | 5 | $96.8m |
| Q4 2022 | 4 | $95.9m |
| Q3 2022 | 5 | $135.1m |
Counts every tracked manager that disclosed CIEN in that quarter's filing, including managers that have since stopped filing.