SG Americas Securities
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SG Americas Securities’s Ciena CIEN Stock Holding History

SG Americas Securities’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 		$1.96M Buy
+89,900
New +$45.8M ﹤0.01% 1517
2018
Q3 		– Sell
-100,000
Closed -$10K – 3173
2018
Q2 		$10K Hold
100,000
– – ﹤0.01% 3267
2018
Q1 		$51K Hold
100,000
– – ﹤0.01% 3080
2017
Q4 		$186K Hold
100,000
– – ﹤0.01% 2490
2017
Q3 		$178K Buy
+100,000
New +$2.39M ﹤0.01% 2683

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

SG Americas Securities's CIEN Position: Q2 2026 in Review

SG Americas Securities increased its Ciena (CIEN) stake by 146% in Q2 2026, buying an estimated $142M and bringing the position to 470,046 shares worth $231M. The position accounts for 0.13% of the portfolio, ranked #112.

SG Americas Securities first reported a position in CIEN in Q2 2013 and has held it in 50 quarters since. 1,227 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • SG Americas Securities held 470,046 shares of Ciena worth $231M as of Q2 2026.
  • SG Americas Securities bought 279,097 Ciena shares in Q2 2026, an estimated $142M.
  • Ciena made up 0.13% of SG Americas Securities's portfolio in Q2 2026, its #112 holding.
  • SG Americas Securities first reported a position in Ciena in Q2 2013 and has held it in 50 quarters since.
  • 1,227 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on SG Americas Securities's 13F filing for Q2 2026, filed 7 Aug 2026.