Jane Street
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Jane Street’s Ciena CIEN Stock Holding History

Jane Street’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
Q1 		$223M Buy
573,500
+205,600
+56% +$62.9M 0.03% 365
2025
Q4 		$86M Buy
367,900
+28,900
+9% +$5.61M 0.01% 656
2025
Q3 		$49.4M Buy
339,000
+59,600
+21% +$6.07M 0.01% 968
2025
Q2 		$22.7M Sell
279,400
-141,200
-34% -$10.1M ﹤0.01% 1330
2025
Q1 		$25.4M Buy
420,600
+155,200
+58% +$12.3M 0.01% 1112
2024
Q4 		$22.5M Buy
265,400
+40,200
+18% +$2.88M ﹤0.01% 1176
2024
Q3 		$13.9M Buy
225,200
+129,000
+134% +$6.8M ﹤0.01% 1586
2024
Q2 		$4.63M Sell
96,200
-24,900
-21% -$1.18M ﹤0.01% 3077
2024
Q1 		$5.99M Buy
121,100
+101,800
+527% +$5.37M ﹤0.01% 2380
2023
Q4 		$869K Sell
19,300
-7,800
-29% -$344K ﹤0.01% 5808
2023
Q3 		$1.28M Sell
27,100
-83,800
-76% -$3.69M ﹤0.01% 4778
2023
Q2 		$4.71M Buy
110,900
+29,000
+35% +$1.32M ﹤0.01% 2826
2023
Q1 		$4.3M Sell
81,900
-42,200
-34% -$2.11M ﹤0.01% 2658
2022
Q4 		$6.33M Sell
124,100
-66,400
-35% -$3M ﹤0.01% 2174
2022
Q3 		$7.7M Sell
190,500
-68,500
-26% -$3.29M ﹤0.01% 2001
2022
Q2 		$11.8M Buy
259,000
+41,300
+19% +$2.14M 0.01% 1557
2022
Q1 		$13.2M Buy
217,700
+111,200
+104% +$7.28M ﹤0.01% 1652
2021
Q4 		$8.2M Buy
106,500
+23,500
+28% +$1.45M ﹤0.01% 2135
2021
Q3 		$4.26M Sell
83,000
-116,700
-58% -$6.48M ﹤0.01% 2999
2021
Q2 		$11.4M Buy
199,700
+74,500
+60% +$4.11M ﹤0.01% 1578
2021
Q1 		$6.85M Sell
125,200
-82,600
-40% -$4.45M ﹤0.01% 1980
2020
Q4 		$11M Sell
207,800
-10,200
-5% -$453K 0.01% 1337
2020
Q3 		$8.65M Buy
218,000
+111,800
+105% +$5.88M 0.01% 1335
2020
Q2 		$5.75M Buy
106,200
+49,400
+87% +$2.46M ﹤0.01% 1695
2020
Q1 		$2.26M Sell
56,800
-38,300
-40% -$1.57M ﹤0.01% 1899
2019
Q4 		$4.06M Buy
95,100
+15,100
+19% +$575K 0.01% 1245
2019
Q3 		$3.14M Buy
80,000
+48,100
+151% +$2.02M 0.01% 1359
2019
Q2 		$1.31M Sell
31,900
-40,600
-56% -$1.56M ﹤0.01% 2340
2019
Q1 		$2.71M Buy
72,500
+27,700
+62% +$1.08M ﹤0.01% 1704
2018
Q4 		$1.52M Buy
44,800
+29,600
+195% +$938K ﹤0.01% 2027
2018
Q3 		$475K Buy
15,200
+4,800
+46% +$134K ﹤0.01% 3682
2018
Q2 		$276K Sell
10,400
-58,600
-85% -$1.49M ﹤0.01% 4212
2018
Q1 		$1.79M Buy
69,000
+41,300
+149% +$972K ﹤0.01% 1987
2017
Q4 		$580K Sell
27,700
-25,200
-48% -$534K ﹤0.01% 2996
2017
Q3 		$1.16M Sell
52,900
-68,100
-56% -$1.63M ﹤0.01% 2141
2017
Q2 		$3.03M Buy
121,000
+93,600
+342% +$2.24M 0.01% 1121
2017
Q1 		$647K Sell
27,400
-203,200
-88% -$4.98M ﹤0.01% 2588
2016
Q4 		$5.63M Buy
230,600
+218,800
+1,854% +$4.78M 0.02% 593
2016
Q3 		$257K Buy
+11,800
New +$246K ﹤0.01% 3453
2016
Q2 		– Sell
-28,700
Closed -$546K – 4099
2016
Q1 		$546K Buy
28,700
+17,600
+159% +$325K ﹤0.01% 2506
2015
Q4 		$230K Sell
11,100
-21,600
-66% -$496K ﹤0.01% 3415
2015
Q3 		$678K Buy
32,700
+24,000
+276% +$558K ﹤0.01% 1982
2015
Q2 		$206K Sell
8,700
-3,500
-29% -$79.9K ﹤0.01% 3250
2015
Q1 		$236K Buy
+12,200
New +$243K ﹤0.01% 2733

Other funds holding CIEN

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Jane Street's CIEN Position: Q1 2026 in Review

Jane Street increased its Ciena (CIEN) stake by 528% in Q1 2026, buying an estimated $16.7M and bringing the position to 64,781 shares worth $25.1M. The position accounts for ﹤0.01% of the portfolio, ranked #1580.

Jane Street first reported a position in CIEN in Q2 2013 and has held it in 44 quarters since. 1,080 funds tracked by Wall St. Rank hold CIEN as of Q1 2026.

  • Jane Street held 64,781 shares of Ciena worth $25.1M as of Q1 2026.
  • Jane Street bought 54,472 Ciena shares in Q1 2026, an estimated $16.7M.
  • Ciena made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #1580 holding.
  • Jane Street first reported a position in Ciena in Q2 2013 and has held it in 44 quarters since.
  • 1,080 funds tracked by Wall St. Rank held Ciena as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.