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TCW Group’s Ciena CIEN Stock Holding History

TCW Group’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 		$1.17M Buy
2,378
+42
+2% +$21.4K 0.01% 362
2026
Q1 		$907K Buy
2,336
+112
+5% +$34.3K 0.01% 377
2025
Q4 		$520K Buy
+2,224
New +$431K ﹤0.01% 467
2018
Q2 		– Sell
-760,954
Closed -$19.7M – 342
2018
Q1 		$19.7M Buy
760,954
+121,888
+19% +$2.87M 0.16% 117
2017
Q4 		$13.4M Buy
639,066
+2,270
+0.4% +$48.1K 0.11% 137
2017
Q3 		$14M Buy
636,796
+9,667
+2% +$231K 0.11% 130
2017
Q2 		$15.7M Buy
627,129
+387,680
+162% +$9.29M 0.13% 128
2017
Q1 		$5.65M Buy
239,449
+85,949
+56% +$2.11M 0.05% 162
2016
Q4 		$3.75M Buy
153,500
+136,505
+803% +$2.98M 0.03% 241
2016
Q3 		$370K Buy
16,995
+973
+6% +$20.3K ﹤0.01% 625
2016
Q2 		$300K Buy
+16,022
New +$290K ﹤0.01% 654

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

TCW Group's CIEN Position: Q2 2026 in Review

TCW Group increased its Ciena (CIEN) stake by 1.8% in Q2 2026, buying an estimated $21.4K and bringing the position to 2,378 shares worth $1.17M. The position accounts for 0.01% of the portfolio, ranked #362.

TCW Group first reported a position in CIEN in Q2 2016 and has held it in 11 quarters since. The position peaked at $19.7M in Q1 2018. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • TCW Group held 2,378 shares of Ciena worth $1.17M as of Q2 2026.
  • TCW Group bought 42 Ciena shares in Q2 2026, an estimated $21.4K.
  • Ciena made up 0.01% of TCW Group's portfolio in Q2 2026, its #362 holding.
  • TCW Group first reported a position in Ciena in Q2 2016 and has held it in 11 quarters since.
  • TCW Group's Ciena position peaked at $19.7M in Q1 2018.
  • 1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on TCW Group's 13F filing for Q2 2026, filed 3 Aug 2026.