Ciena
CIEN
688 hedge funds and large institutions have $20.3B invested in Ciena in 2025 Q3 according to their latest regulatory filings, with 180 funds opening new positions, 175 increasing their positions, 261 reducing their positions, and 48 closing their positions.
275% more first-time investments, than exits
New positions opened: 180 | Existing positions closed: 48
90% more call options, than puts
Call options by funds: $419M | Put options by funds: $220M
78% more funds holding in top 10
Funds holding in top 10: 9 → 16 (+7)
77% more capital invested
Capital invested by funds: $11.5B → $20.3B (+$8.82B)
22% more funds holding
Funds holding: 563 → 688 (+125)
0.97% less ownership
Funds ownership: 99.63% → 98.65% (-0.97%)
33% less repeat investments, than reductions
Existing positions increased: 175 | Existing positions reduced: 261
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Associates
Baltimore,
Maryland
|
+$243M |
| 2 |
LPC
Lone Pine Capital
Greenwich,
Connecticut
|
+$204M |
| 3 |
JP Morgan Chase
New York
|
+$124M |
| 4 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$111M |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$110M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Point72 Asset Management
Stamford,
Connecticut
|
-$221M |
| 2 |
Barrow, Hanley, Mewhinney & Strauss
Dallas,
Texas
|
-$213M |
| 3 |
BlackRock
New York
|
-$150M |
| 4 |
IAM
Ion Asset Management
Herzliya,
Israel
|
-$102M |
| 5 |
SM
Senvest Management
New York
|
-$80.2M |
CIEN Hedge Fund Activity: Q3 2025 in Review
688 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Ciena (CIEN) for Q3 2025, worth a combined $20.3B — up 77% from $11.5B a quarter earlier.
Buyers outnumbered sellers: 180 funds opened new CIEN positions and 48 closed out — a net gain of 132 holders — while 175 added to existing stakes and 261 trimmed.
The largest buyer was T. Rowe Price Associates, adding an estimated $243M. The largest seller was Point72 Asset Management, cutting an estimated $221M.
- 688 institutional investors held Ciena (CIEN) as of Q3 2025, up from 563 in Q2 2025.
- Funds reported $20.3B of Ciena stock for Q3 2025, up 77% quarter-over-quarter.
- 180 funds opened new Ciena positions in Q3 2025 and 48 closed out, a net change of +132 holders.
- The largest Ciena buyer in Q3 2025 was T. Rowe Price Associates, an estimated $243M added.
- The largest Ciena seller in Q3 2025 was Point72 Asset Management, an estimated $221M sold.
Based on aggregated 13F filings for Q3 2025.