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Tortoise Capital Advisors’s Ciena CIEN Stock Holding History

Tortoise Capital Advisors’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 		$23M Buy
46,850
+21,432
+84% +$10.9M 0.23% 48
2026
Q1 		$9.87M Sell
25,418
-596
-2% -$182K 0.1% 51
2025
Q4 		$6.08M Buy
26,014
+13,474
+107% +$2.61M 0.08% 48
2025
Q3 		$1.83M Buy
+12,540
New +$1.28M 0.02% 58

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

Tortoise Capital Advisors's CIEN Position: Q2 2026 in Review

Tortoise Capital Advisors increased its Ciena (CIEN) stake by 84% in Q2 2026, buying an estimated $10.9M and bringing the position to 46,850 shares worth $23M. The position accounts for 0.23% of the portfolio, ranked #48.

Tortoise Capital Advisors first reported a position in CIEN in Q3 2025 and has held it in 4 quarters since. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Tortoise Capital Advisors held 46,850 shares of Ciena worth $23M as of Q2 2026.
  • Tortoise Capital Advisors bought 21,432 Ciena shares in Q2 2026, an estimated $10.9M.
  • Ciena made up 0.23% of Tortoise Capital Advisors's portfolio in Q2 2026, its #48 holding.
  • Tortoise Capital Advisors first reported a position in Ciena in Q3 2025 and has held it in 4 quarters since.
  • 1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Tortoise Capital Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.