Ciena
CIEN
544 hedge funds and large institutions have $8.24B invested in Ciena in 2025 Q1 according to their latest regulatory filings, with 98 funds opening new positions, 184 increasing their positions, 188 reducing their positions, and 81 closing their positions.
24% more call options, than puts
Call options by funds: $184M | Put options by funds: $149M
21% more first-time investments, than exits
New positions opened: 98 | Existing positions closed: 81
2% more funds holding
Funds holding: 534 → 544 (+10)
2% less repeat investments, than reductions
Existing positions increased: 184 | Existing positions reduced: 188
2.76% less ownership
Funds ownership: 98.68% → 95.92% (-2.8%)
31% less capital invested
Capital invested by funds: $11.9B → $8.24B (-$3.65B)
45% less funds holding in top 10
Funds holding in top 10: 11 → 6 (-5)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
William Blair Investment Management
Chicago,
Illinois
|
+$159M |
| 2 |
Capital World Investors
Los Angeles,
California
|
+$146M |
| 3 |
Point72 Asset Management
Stamford,
Connecticut
|
+$137M |
| 4 |
WP
Woodline Partners
San Francisco,
California
|
+$64.4M |
| 5 |
Qube Research & Technologies (QRT)
London,
United Kingdom
|
+$61M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$273M |
| 2 |
SPC
Slate Path Capital
New York
|
-$185M |
| 3 |
Fidelity International
Hamilton,
Bermuda
|
-$123M |
| 4 |
Barrow, Hanley, Mewhinney & Strauss
Dallas,
Texas
|
-$114M |
| 5 |
PCH
Polar Capital Holdings
London,
United Kingdom
|
-$73.9M |
CIEN Hedge Fund Activity: Q1 2025 in Review
544 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in Ciena (CIEN) for Q1 2025, worth a combined $8.24B — down 31% from $11.9B a quarter earlier.
Buyers outnumbered sellers: 98 funds opened new CIEN positions and 81 closed out — a net gain of 17 holders — while 184 added to existing stakes and 188 trimmed.
The largest buyer was William Blair Investment Management, opening a new position worth an estimated $159M. The largest seller was T. Rowe Price Associates, cutting an estimated $273M.
- 544 institutional investors held Ciena (CIEN) as of Q1 2025, up from 534 in Q4 2024.
- Funds reported $8.24B of Ciena stock for Q1 2025, down 31% quarter-over-quarter.
- 98 funds opened new Ciena positions in Q1 2025 and 81 closed out, a net change of +17 holders.
- The largest Ciena buyer in Q1 2025 was William Blair Investment Management, an estimated $159M added.
- The largest Ciena seller in Q1 2025 was T. Rowe Price Associates, an estimated $273M sold.
Based on aggregated 13F filings for Q1 2025.