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Cubist Systematic Strategies’s Ciena CIEN Stock Holding History

Cubist Systematic Strategies’s Portfolio CIEN Stock Details CIEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		$5.19M Sell
35,600
-16,600
-32% -$1.69M 0.02% 944
2025
Q2 		$4.25M Buy
52,200
+21,800
+72% +$1.56M 0.02% 1116
2025
Q1 		$1.84M Buy
30,400
+700
+2% +$55.3K 0.01% 1479
2024
Q4 		$2.52M Buy
29,700
+2,500
+9% +$179K 0.02% 1222
2024
Q3 		$1.68M Sell
27,200
-13,800
-34% -$727K 0.01% 1521
2024
Q2 		$1.98M Sell
41,000
-3,100
-7% -$147K 0.01% 1339
2024
Q1 		$2.18M Sell
44,100
-9,700
-18% -$512K 0.01% 1584
2023
Q4 		$2.42M Sell
53,800
-300
-0.6% -$13.2K 0.02% 1379
2023
Q3 		$2.56M Buy
+54,100
New +$2.38M 0.02% 1197
2023
Q2 		– Sell
-34,400
Closed -$1.81M – 3592
2023
Q1 		$1.81M Sell
34,400
-17,800
-34% -$889K 0.01% 1742
2022
Q4 		$2.66M Buy
52,200
+16,600
+47% +$751K 0.02% 1604
2022
Q3 		$1.44M Buy
+35,600
New +$1.71M 0.01% 2301

Other funds holding CIEN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
BNP Paribas Asset Management
BNP Paribas Asset Management Paris, France $86.1B AUM 29.11% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return

Cubist Systematic Strategies's CIEN Position: Q2 2025 in Review

Cubist Systematic Strategies sold out of Ciena (CIEN) in Q2 2025, closing a stake of 305,767 shares — an estimated $21.9M sold.

Cubist Systematic Strategies first reported a position in CIEN in Q2 2014 and held it in 39 quarters. The position peaked at $34.4M in Q2 2019. 563 funds tracked by Wall St. Rank hold CIEN as of Q2 2025.

  • Cubist Systematic Strategies reported no remaining Ciena position as of Q2 2025 after selling out during the quarter.
  • Cubist Systematic Strategies sold 305,767 Ciena shares in Q2 2025, an estimated $21.9M.
  • Cubist Systematic Strategies first reported a position in Ciena in Q2 2014 and held it in 39 quarters.
  • Cubist Systematic Strategies's Ciena position peaked at $34.4M in Q2 2019.
  • 563 funds tracked by Wall St. Rank held Ciena as of Q2 2025.

Based on Cubist Systematic Strategies's 13F filing for Q2 2025, filed 14 Aug 2025.