Assenagon Asset Management’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 | $105M | Sell |
214,002
-150,545
| -41% | -$76.8M | 0.13% | 128 |
|
|
2026
Q1 | $142M | Sell |
364,547
-149,695
| -29% | -$45.8M | 0.21% | 79 |
|
|
2025
Q4 | $120M | Sell |
514,242
-508,915
| -50% | -$98.7M | 0.17% | 105 |
|
|
2025
Q3 | $149M | Buy |
1,023,157
+235,891
| +30% | +$24M | 0.2% | 93 |
|
|
2025
Q2 | $64M | Buy |
787,266
+747,576
| +1,884% | +$53.6M | 0.1% | 182 |
|
|
2025
Q1 | $2.4M | Buy |
+39,690
| New | +$3.14M | ﹤0.01% | 704 |
|
|
2024
Q4 | – | Sell |
-98,695
| Closed | -$6.08M | – | 1349 |
|
|
2024
Q3 | $6.08M | Sell |
98,695
-127,407
| -56% | -$6.71M | 0.01% | 660 |
|
|
2024
Q2 | $10.9M | Sell |
226,102
-385,362
| -63% | -$18.3M | 0.02% | 416 |
|
|
2024
Q1 | $30.2M | Buy |
611,464
+73,505
| +14% | +$3.88M | 0.07% | 215 |
|
|
2023
Q4 | $24.2M | Sell |
537,959
-58,079
| -10% | -$2.56M | 0.06% | 253 |
|
|
2023
Q3 | $28.2M | Buy |
596,038
+476,102
| +397% | +$21M | 0.09% | 194 |
|
|
2023
Q2 | $5.1M | Sell |
119,936
-217,120
| -64% | -$9.89M | 0.02% | 493 |
|
|
2023
Q1 | $17.7M | Buy |
337,056
+178,882
| +113% | +$8.93M | 0.06% | 264 |
|
|
2022
Q4 | $8.06M | Buy |
158,174
+105,454
| +200% | +$4.77M | 0.03% | 424 |
|
|
2022
Q3 | $2.13M | Sell |
52,720
-22,630
| -30% | -$1.09M | 0.01% | 690 |
|
|
2022
Q2 | $3.44M | Sell |
75,350
-262,107
| -78% | -$13.6M | 0.01% | 657 |
|
|
2022
Q1 | $20.5M | Buy |
337,457
+277,822
| +466% | +$18.2M | 0.06% | 242 |
|
|
2021
Q4 | $4.59M | Sell |
59,635
-20,120
| -25% | -$1.24M | 0.01% | 540 |
|
|
2021
Q3 | $4.09M | Sell |
79,755
-221,241
| -74% | -$12.3M | 0.01% | 490 |
|
|
2021
Q2 | $17.1M | Buy |
300,996
+150,945
| +101% | +$8.32M | 0.06% | 247 |
|
|
2021
Q1 | $8.21M | Buy |
150,051
+123,760
| +471% | +$6.66M | 0.03% | 381 |
|
|
2020
Q4 | $1.39M | Buy |
26,291
+6,515
| +33% | +$289K | 0.01% | 628 |
|
|
2020
Q3 | $785K | Buy |
19,776
+1,351
| +7% | +$71.1K | ﹤0.01% | 906 |
|
|
2020
Q2 | $998K | Buy |
+18,425
| New | +$916K | 0.01% | 791 |
|
|
2020
Q1 | – | Sell |
-212,750
| Closed | -$9.08M | – | 815 |
|
|
2019
Q4 | $9.08M | Buy |
+212,750
| New | +$8.11M | 0.06% | 193 |
|
|
2019
Q2 | – | Sell |
-35,849
| Closed | -$1.34M | – | 1019 |
|
|
2019
Q1 | $1.34M | Sell |
35,849
-50,460
| -58% | -$1.96M | 0.01% | 616 |
|
|
2018
Q4 | $2.93M | Sell |
86,309
-118,214
| -58% | -$3.75M | 0.03% | 348 |
|
|
2018
Q3 | $6.39M | Buy |
+204,523
| New | +$5.73M | 0.06% | 256 |
|
Other funds holding CIEN
Assenagon Asset Management's CIEN Position: Q2 2026 in Review
Assenagon Asset Management reduced its Ciena (CIEN) stake by 41% in Q2 2026, selling an estimated $76.8M and leaving 214,002 shares worth $105M. The position accounts for 0.13% of the portfolio, ranked #128.
Assenagon Asset Management first reported a position in CIEN in Q3 2018 and has held it in 28 quarters since. The position peaked at $149M in Q3 2025. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.
- Assenagon Asset Management held 214,002 shares of Ciena worth $105M as of Q2 2026.
- Assenagon Asset Management sold 150,545 Ciena shares in Q2 2026, an estimated $76.8M.
- Ciena made up 0.13% of Assenagon Asset Management's portfolio in Q2 2026, its #128 holding.
- Assenagon Asset Management first reported a position in Ciena in Q3 2018 and has held it in 28 quarters since.
- Assenagon Asset Management's Ciena position peaked at $149M in Q3 2025.
- 1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.
Based on Assenagon Asset Management's 13F filing for Q2 2026, filed 8 Jul 2026.