Vanguard Portfolio Management
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Vanguard Portfolio Management’s Ciena CIEN Stock Holding History

Vanguard Portfolio 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 		$3.77B Buy
7,680,665
+311,541
+4% +$159M 0.17% 93
2026
Q1 		$2.86B Buy
+7,369,124
New +$2.25B 0.15% 120

Other funds holding CIEN

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
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
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM

Vanguard Portfolio Management's CIEN Position: Q2 2026 in Review

Vanguard Portfolio Management increased its Ciena (CIEN) stake by 4.2% in Q2 2026, buying an estimated $159M and bringing the position to 7,680,665 shares worth $3.77B. The position accounts for 0.17% of the portfolio, ranked #93.

Vanguard Portfolio Management first reported a position in CIEN in Q1 2026 and has held it in 2 quarters since. 1,150 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Vanguard Portfolio Management held 7,680,665 shares of Ciena worth $3.77B as of Q2 2026.
  • Vanguard Portfolio Management bought 311,541 Ciena shares in Q2 2026, an estimated $159M.
  • Ciena made up 0.17% of Vanguard Portfolio Management's portfolio in Q2 2026, its #93 holding.
  • Vanguard Portfolio Management first reported a position in Ciena in Q1 2026 and has held it in 2 quarters since.
  • 1,150 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Vanguard Portfolio Management's 13F filing for Q2 2026, filed 13 Aug 2026.