Capital Research Global Investors
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Capital Research Global Investors’s Ciena CIEN Stock Holding History

Capital Research Global Investors’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 		$322M Sell
656,554
-2,093,496
-76% -$1.07B 0.04% 197
2026
Q1 		$1.07B Buy
+2,750,050
New +$841M 0.17% 113

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

Capital Research Global Investors's CIEN Position: Q2 2026 in Review

Capital Research Global Investors reduced its Ciena (CIEN) stake by 76% in Q2 2026, selling an estimated $1.07B and leaving 656,554 shares worth $322M. The position accounts for 0.04% of the portfolio, ranked #197.

Capital Research Global Investors first reported a position in CIEN in Q1 2026 and has held it in 2 quarters since. The position peaked at $1.07B in Q1 2026. 1,224 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Capital Research Global Investors held 656,554 shares of Ciena worth $322M as of Q2 2026.
  • Capital Research Global Investors sold 2,093,496 Ciena shares in Q2 2026, an estimated $1.07B.
  • Ciena made up 0.04% of Capital Research Global Investors's portfolio in Q2 2026, its #197 holding.
  • Capital Research Global Investors first reported a position in Ciena in Q1 2026 and has held it in 2 quarters since.
  • Capital Research Global Investors's Ciena position peaked at $1.07B in Q1 2026.
  • 1,224 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Capital Research Global Investors's 13F filing for Q2 2026, filed 12 Aug 2026.