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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 		$2.68M Buy
18,400
+2,000
+12% +$204K 0.01% 1377
2025
Q2 		$1.33M Buy
16,400
+10,800
+193% +$775K 0.01% 1785
2025
Q1 		$338K Sell
5,600
-1,400
-20% -$111K ﹤0.01% 2327
2024
Q4 		$594K Buy
7,000
+600
+9% +$43.1K ﹤0.01% 2091
2024
Q3 		$394K Sell
6,400
-20,100
-76% -$1.06M ﹤0.01% 2309
2024
Q2 		$1.28M Hold
26,500
– – 0.01% 1598
2024
Q1 		$1.31M Sell
26,500
-7,700
-23% -$406K 0.01% 1948
2023
Q4 		$1.54M Sell
34,200
-8,800
-20% -$388K 0.01% 1722
2023
Q3 		$2.03M Buy
+43,000
New +$1.9M 0.02% 1364
2023
Q2 		– Sell
-54,700
Closed -$2.87M – 3593
2023
Q1 		$2.87M Sell
54,700
-11,400
-17% -$569K 0.02% 1377
2022
Q4 		$3.37M Buy
66,100
+19,000
+40% +$859K 0.02% 1378
2022
Q3 		$1.9M Buy
+47,100
New +$2.26M 0.01% 2059

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.