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Gulf International Bank (UK)’s Ciena CIEN Stock Holding History

Gulf International Bank (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 		$5.25M Sell
10,709
-174
-2% -$88.7K 0.1% 183
2026
Q1 		$4.22M Buy
10,883
+3,311
+44% +$1.01M 0.09% 205
2025
Q4 		$1.77M Buy
+7,572
New +$1.47M 0.06% 289

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 $3.38T AUM 44.17% 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

Gulf International Bank (UK)'s CIEN Position: Q2 2026 in Review

Gulf International Bank (UK) reduced its Ciena (CIEN) stake by 1.6% in Q2 2026, selling an estimated $88.7K and leaving 10,709 shares worth $5.25M. The position accounts for 0.1% of the portfolio, ranked #183.

Gulf International Bank (UK) first reported a position in CIEN in Q4 2025 and has held it in 3 quarters since. 1,227 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Gulf International Bank (UK) held 10,709 shares of Ciena worth $5.25M as of Q2 2026.
  • Gulf International Bank (UK) sold 174 Ciena shares in Q2 2026, an estimated $88.7K.
  • Ciena made up 0.1% of Gulf International Bank (UK)'s portfolio in Q2 2026, its #183 holding.
  • Gulf International Bank (UK) first reported a position in Ciena in Q4 2025 and has held it in 3 quarters since.
  • 1,227 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Gulf International Bank (UK)'s 13F filing for Q2 2026, filed 13 Aug 2026.