Blackstone Inc
CIEN icon

Blackstone Inc’s Ciena CIEN Stock Holding History

Blackstone Inc’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 		$4.03M Buy
8,217
+958
+13% +$489K 0.01% 126
2026
Q1 		$2.82M Buy
+7,259
New +$2.22M 0.01% 175
2016
Q4 		– Sell
-586,755
Closed -$12.8M – 50
2016
Q3 		$12.8M Sell
586,755
-105,902
-15% -$2.21M 0.07% 48
2016
Q2 		$13M Buy
+692,657
New +$12.5M 0.06% 68

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 $3.37T 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
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Blackstone Inc's CIEN Position: Q2 2026 in Review

Blackstone Inc increased its Ciena (CIEN) stake by 13% in Q2 2026, buying an estimated $489K and bringing the position to 8,217 shares worth $4.03M. The position accounts for 0.01% of the portfolio, ranked #126.

Blackstone Inc first reported a position in CIEN in Q2 2016 and has held it in 4 quarters since. The position peaked at $13M in Q2 2016. 1,224 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Blackstone Inc held 8,217 shares of Ciena worth $4.03M as of Q2 2026.
  • Blackstone Inc bought 958 Ciena shares in Q2 2026, an estimated $489K.
  • Ciena made up 0.01% of Blackstone Inc's portfolio in Q2 2026, its #126 holding.
  • Blackstone Inc first reported a position in Ciena in Q2 2016 and has held it in 4 quarters since.
  • Blackstone Inc's Ciena position peaked at $13M in Q2 2016.
  • 1,224 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Blackstone Inc's 13F filing for Q2 2026, filed 14 Aug 2026.