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Atika Capital Management’s Ciena CIEN Stock Holding History

Atika Capital Management’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 		$23.9M Buy
48,768
+5,117
+12% +$2.61M 1.57% 16
2026
Q1 		$16.9M Sell
43,651
-16,349
-27% -$5M 2.13% 12
2025
Q4 		$14M Sell
60,000
-20,000
-25% -$3.88M 1.48% 16
2025
Q3 		$11.7M Buy
+80,000
New +$8.15M 0.94% 36

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

Atika Capital Management's CIEN Position: Q2 2026 in Review

Atika Capital Management increased its Ciena (CIEN) stake by 12% in Q2 2026, buying an estimated $2.61M and bringing the position to 48,768 shares worth $23.9M. The position accounts for 1.57% of the portfolio, ranked #16.

Atika Capital Management first reported a position in CIEN in Q3 2025 and has held it in 4 quarters since. 1,217 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Atika Capital Management held 48,768 shares of Ciena worth $23.9M as of Q2 2026.
  • Atika Capital Management bought 5,117 Ciena shares in Q2 2026, an estimated $2.61M.
  • Ciena made up 1.57% of Atika Capital Management's portfolio in Q2 2026, its #16 holding.
  • Atika Capital Management first reported a position in Ciena in Q3 2025 and has held it in 4 quarters since.
  • 1,217 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Atika Capital Management's 13F filing for Q2 2026, filed 13 Aug 2026.