William Mack & Associates
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William Mack & Associates’s Ciena CIEN Stock Holding History

William Mack & Associates’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
Q3 		$1.41K Buy
+4
New +$1.54K ﹤0.01% 640

Other funds holding CIEN

Fidelity Investments
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BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.84T AUM 33.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.27T AUM 50.62% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $229B AUM 33.35% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $704B AUM 26.74% 1-Year Est. Return

William Mack & Associates's CIEN Position: Q3 2026 in Review

William Mack & Associates opened a new position in Ciena (CIEN) in Q3 2026: 4 shares worth $1.41K. The stake represents ﹤0.01% of the portfolio and ranks #640 among its holdings.

927 funds tracked by Wall St. Rank hold CIEN as of Q3 2026.

  • William Mack & Associates held 4 shares of Ciena worth $1.41K as of Q3 2026.
  • Ciena was a new William Mack & Associates position in Q3 2026.
  • Ciena made up ﹤0.01% of William Mack & Associates's portfolio in Q3 2026, its #640 holding.
  • 927 funds tracked by Wall St. Rank held Ciena as of Q3 2026.

Based on William Mack & Associates's 13F filing for Q3 2026, filed 27 Oct 2026.