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Caxton Associates (UK)’s Ciena CIEN Stock Holding History

Caxton Associates (UK)’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
2026
Q2 		$57.8M Buy
+117,924
New +$60.1M 1.08% 17
2026
Q1 		– Sell
-10,502
Closed -$2.46M – 807
2025
Q4 		$2.46M Buy
+10,502
New +$2.04M 0.05% 152
2025
Q3 		– Sell
-250,000
Closed -$20.3M – 735
2025
Q2 		$20.3M Buy
250,000
+187,658
+301% +$13.5M 0.52% 29
2025
Q1 		$3.77M Buy
+62,342
New +$4.93M 0.13% 67

Other funds holding CIEN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Caxton Associates (UK)'s CIEN Position: Q2 2026 in Review

Caxton Associates (UK) opened a new position in Ciena (CIEN) in Q2 2026: 117,924 shares worth $57.8M. The stake represents 1.08% of the portfolio and ranks #17 among its holdings. This is a return to the name: Caxton Associates (UK) previously reported a position in CIEN as recently as Q4 2025.

Caxton Associates (UK) first reported a position in CIEN in Q1 2025 and has held it in 4 quarters since. 1,224 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Caxton Associates (UK) held 117,924 shares of Ciena worth $57.8M as of Q2 2026.
  • Ciena was a new Caxton Associates (UK) position in Q2 2026.
  • Ciena made up 1.08% of Caxton Associates (UK)'s portfolio in Q2 2026, its #17 holding.
  • Caxton Associates (UK) first reported a position in Ciena in Q1 2025 and has held it in 4 quarters since.
  • 1,224 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Caxton Associates (UK)'s 13F filing for Q2 2026, filed 14 Aug 2026.