Sumitomo Mitsui DS Asset Management’s Ciena CIEN Stock Holding History
Bought
Maintained
Sold
Other funds holding CIEN
Sumitomo Mitsui DS Asset Management's CIEN Position: Q2 2026 in Review
Sumitomo Mitsui DS Asset Management increased its Ciena (CIEN) stake by 7.5% in Q2 2026, buying an estimated $729K and bringing the position to 20,412 shares worth $10M. The position accounts for 0.07% of the portfolio, ranked #222.
Sumitomo Mitsui DS Asset Management first reported a position in CIEN in Q4 2025 and has held it in 3 quarters since. 1,224 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.
- Sumitomo Mitsui DS Asset Management held 20,412 shares of Ciena worth $10M as of Q2 2026.
- Sumitomo Mitsui DS Asset Management bought 1,430 Ciena shares in Q2 2026, an estimated $729K.
- Ciena made up 0.07% of Sumitomo Mitsui DS Asset Management's portfolio in Q2 2026, its #222 holding.
- Sumitomo Mitsui DS Asset Management first reported a position in Ciena in Q4 2025 and has held it in 3 quarters since.
- 1,224 funds tracked by Wall St. Rank held Ciena as of Q2 2026.
Based on Sumitomo Mitsui DS Asset Management's 13F filing for Q2 2026, filed 22 Jul 2026.