EAM
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Eventide Asset Management’s Ciena CIEN Stock Holding History

Eventide Asset Management’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 		$14.5M Buy
29,559
+25,548
+637% +$13M 0.19% 133
2026
Q1 		$1.49M Sell
4,011
-9,491
-70% -$2.9M 0.02% 189
2025
Q4 		$3.19M Sell
13,502
-8,836
-40% -$1.71M 0.05% 172
2025
Q3 		$3.24M Sell
22,338
-7,879
-26% -$802K 0.05% 153
2025
Q2 		$2.46M Buy
30,217
+2,138
+8% +$153K 0.04% 161
2025
Q1 		$1.7M Buy
28,079
+9,456
+51% +$747K 0.03% 170
2024
Q4 		$1.58M Sell
18,623
-17,898
-49% -$1.28M 0.03% 176
2024
Q3 		$2.25M Buy
+36,521
New +$1.92M 0.04% 158
2022
Q3 		– Sell
-32,000
Closed -$1.46M – 140
2022
Q2 		$1.46M Sell
32,000
-11,000
-26% -$570K 0.03% 134
2022
Q1 		$2.61M Sell
43,000
-267,000
-86% -$17.5M 0.04% 131
2021
Q4 		$23.9M Sell
310,000
-17,597
-5% -$1.09M 0.3% 88
2021
Q3 		$16.8M Buy
327,597
+22,422
+7% +$1.25M 0.22% 108
2021
Q2 		$17.4M Buy
305,175
+17,000
+6% +$937K 0.23% 102
2021
Q1 		$15.8M Buy
288,175
+21,175
+8% +$1.14M 0.23% 101
2020
Q4 		$14.1M Hold
267,000
– – 0.22% 101
2020
Q3 		$10.6M Hold
267,000
– – 0.21% 101
2020
Q2 		$14.5M Buy
+267,000
New +$13.3M 0.31% 83

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

Eventide Asset Management's CIEN Position: Q2 2026 in Review

Eventide Asset Management increased its Ciena (CIEN) stake by 637% in Q2 2026, buying an estimated $13M and bringing the position to 29,559 shares worth $14.5M. The position accounts for 0.19% of the portfolio, ranked #133.

Eventide Asset Management first reported a position in CIEN in Q2 2020 and has held it in 17 quarters since. The position peaked at $23.9M in Q4 2021. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Eventide Asset Management held 29,559 shares of Ciena worth $14.5M as of Q2 2026.
  • Eventide Asset Management bought 25,548 Ciena shares in Q2 2026, an estimated $13M.
  • Ciena made up 0.19% of Eventide Asset Management's portfolio in Q2 2026, its #133 holding.
  • Eventide Asset Management first reported a position in Ciena in Q2 2020 and has held it in 17 quarters since.
  • Eventide Asset Management's Ciena position peaked at $23.9M in Q4 2021.
  • 1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Eventide Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.