Marshall Wace’s Ciena CIEN Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $22.1M | Sell |
45,101
-80,876
| -64% | -$41.2M | 0.02% | 684 |
|
|
2026
Q1 | $48.9M | Buy |
125,977
+72,776
| +137% | +$22.3M | 0.05% | 367 |
|
|
2025
Q4 | $12.4M | Sell |
53,201
-136,192
| -72% | -$26.4M | 0.01% | 797 |
|
|
2025
Q3 | $27.6M | Buy |
189,393
+27,708
| +17% | +$2.82M | 0.03% | 522 |
|
|
2025
Q2 | $13.1M | Sell |
161,685
-399,488
| -71% | -$28.7M | 0.01% | 741 |
|
|
2025
Q1 | $33.9M | Sell |
561,173
-338,655
| -38% | -$26.8M | 0.04% | 373 |
|
|
2024
Q4 | $76.3M | Buy |
899,828
+878,979
| +4,216% | +$63.1M | 0.09% | 206 |
|
|
2024
Q3 | $1.28M | Buy |
20,849
+16,649
| +396% | +$877K | ﹤0.01% | 1545 |
|
|
2024
Q2 | $202K | Buy |
+4,200
| New | +$199K | ﹤0.01% | 2295 |
|
|
2024
Q1 | – | Sell |
-77,691
| Closed | -$3.5M | – | 2473 |
|
|
2023
Q4 | $3.5M | Buy |
+77,691
| New | +$3.43M | 0.01% | 1037 |
|
|
2023
Q2 | – | Sell |
-161,137
| Closed | -$8.46M | – | 2517 |
|
|
2023
Q1 | $8.46M | Sell |
161,137
-155,763
| -49% | -$7.78M | 0.02% | 772 |
|
|
2022
Q4 | $16.2M | Sell |
316,900
-357,131
| -53% | -$16.1M | 0.04% | 553 |
|
|
2022
Q3 | $27.3M | Buy |
674,031
+205,808
| +44% | +$9.89M | 0.06% | 352 |
|
|
2022
Q2 | $21.4M | Sell |
468,223
-140,724
| -23% | -$7.3M | 0.04% | 437 |
|
|
2022
Q1 | $36.9M | Buy |
608,947
+454,418
| +294% | +$29.7M | 0.07% | 306 |
|
|
2021
Q4 | $11.9M | Buy |
+154,529
| New | +$9.53M | 0.02% | 749 |
|
|
2020
Q4 | – | Sell |
-16,561
| Closed | -$657K | – | 1908 |
|
|
2020
Q3 | $657K | Sell |
16,561
-144,851
| -90% | -$7.62M | ﹤0.01% | 1162 |
|
|
2020
Q2 | $8.74M | Sell |
161,412
-19,639
| -11% | -$976K | 0.06% | 319 |
|
|
2020
Q1 | $7.21M | Sell |
181,051
-53,165
| -23% | -$2.18M | 0.07% | 276 |
|
|
2019
Q4 | $10M | Buy |
234,216
+16,001
| +7% | +$610K | 0.07% | 319 |
|
|
2019
Q3 | $8.56M | Buy |
+218,215
| New | +$9.15M | 0.07% | 339 |
|
|
2019
Q1 | – | Sell |
-117,417
| Closed | -$3.98M | – | 1751 |
|
|
2018
Q4 | $3.98M | Buy |
+117,417
| New | +$3.72M | 0.04% | 520 |
|
|
2016
Q1 | – | Sell |
-92,534
| Closed | -$1.92M | – | 1042 |
|
|
2015
Q4 | $1.92M | Buy |
92,534
+76,087
| +463% | +$1.75M | 0.02% | 575 |
|
|
2015
Q3 | $341K | Sell |
16,447
-112,025
| -87% | -$2.6M | ﹤0.01% | 785 |
|
|
2015
Q2 | $3.04M | Sell |
128,472
-49,640
| -28% | -$1.13M | 0.04% | 388 |
|
|
2015
Q1 | $3.44M | Sell |
178,112
-85,875
| -33% | -$1.71M | 0.04% | 386 |
|
|
2014
Q4 | $5.12M | Buy |
263,987
+62,825
| +31% | +$1.05M | 0.07% | 306 |
|
|
2014
Q3 | $3.36M | Buy |
201,162
+109,824
| +120% | +$2.15M | 0.05% | 352 |
|
|
2014
Q2 | $1.98M | Buy |
91,338
+72,436
| +383% | +$1.49M | 0.03% | 404 |
|
|
2014
Q1 | $430K | Buy |
+18,902
| New | +$445K | 0.01% | 611 |
|
Other funds holding CIEN
Marshall Wace's CIEN Position: Q2 2026 in Review
Marshall Wace reduced its Ciena (CIEN) stake by 64% in Q2 2026, selling an estimated $41.2M and leaving 45,101 shares worth $22.1M. The position accounts for 0.02% of the portfolio, ranked #684.
Marshall Wace first reported a position in CIEN in Q1 2014 and has held it in 30 quarters since. The position peaked at $76.3M in Q4 2024. 1,217 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.
- Marshall Wace held 45,101 shares of Ciena worth $22.1M as of Q2 2026.
- Marshall Wace sold 80,876 Ciena shares in Q2 2026, an estimated $41.2M.
- Ciena made up 0.02% of Marshall Wace's portfolio in Q2 2026, its #684 holding.
- Marshall Wace first reported a position in Ciena in Q1 2014 and has held it in 30 quarters since.
- Marshall Wace's Ciena position peaked at $76.3M in Q4 2024.
- 1,217 funds tracked by Wall St. Rank held Ciena as of Q2 2026.
Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.