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Plato Investment Management’s Ciena CIEN Stock Holding History

Plato Investment 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 		$2.12M Buy
4,355
+653
+18% +$333K 0.12% 175
2026
Q1 		$1.44M Buy
3,702
+2,436
+192% +$745K 0.1% 214
2025
Q4 		$298K Buy
+1,266
New +$246K 0.02% 379

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

Plato Investment Management's CIEN Position: Q2 2026 in Review

Plato Investment Management increased its Ciena (CIEN) stake by 18% in Q2 2026, buying an estimated $333K and bringing the position to 4,355 shares worth $2.12M. The position accounts for 0.12% of the portfolio, ranked #175.

Plato Investment Management first reported a position in CIEN in Q4 2025 and has held it in 3 quarters since. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Plato Investment Management held 4,355 shares of Ciena worth $2.12M as of Q2 2026.
  • Plato Investment Management bought 653 Ciena shares in Q2 2026, an estimated $333K.
  • Ciena made up 0.12% of Plato Investment Management's portfolio in Q2 2026, its #175 holding.
  • Plato Investment Management first reported a position in Ciena in Q4 2025 and has held it in 3 quarters since.
  • 1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Plato Investment Management's 13F filing for Q2 2026, filed 7 Aug 2026.