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Harbor Capital Advisors’s Ciena CIEN Stock Holding History

Harbor Capital Advisors’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 		$1.95M Buy
3,971
+9
+0.2% +$4.59K 0.13% 229
2026
Q1 		$1.54M Buy
+3,962
New +$1.21M 0.12% 243
2025
Q3 		– Sell
-597
Closed -$49K – 1367
2025
Q2 		$49K Buy
597
+42
+8% +$3.01K ﹤0.01% 701
2025
Q1 		$34K Sell
555
-2,135
-79% -$169K ﹤0.01% 750
2024
Q4 		$228K Sell
2,690
-39,177
-94% -$2.81M 0.01% 642
2024
Q3 		$2.58M Buy
41,867
+38,402
+1,108% +$2.02M 0.11% 250
2024
Q2 		$167K Buy
3,465
+514
+17% +$24.4K 0.01% 666
2024
Q1 		$146K Buy
+2,951
New +$156K 0.02% 678
2023
Q1 		– Sell
-1,797
Closed -$91.6K – 248
2022
Q4 		$91.6K Buy
1,797
+101
+6% +$4.57K 0.09% 87
2022
Q3 		$69K Sell
1,696
-1,254
-43% -$60.3K 0.06% 144
2022
Q2 		$135K Buy
2,950
+440
+18% +$22.8K 0.1% 140
2022
Q1 		$152K Buy
+2,510
New +$164K 0.07% 144

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 $3.38T AUM 44.17% 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

Harbor Capital Advisors's CIEN Position: Q2 2026 in Review

Harbor Capital Advisors increased its Ciena (CIEN) stake by 0.23% in Q2 2026, buying an estimated $4.59K and bringing the position to 3,971 shares worth $1.95M. The position accounts for 0.13% of the portfolio, ranked #229.

Harbor Capital Advisors first reported a position in CIEN in Q1 2022 and has held it in 12 quarters since. The position peaked at $2.58M in Q3 2024. 1,226 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • Harbor Capital Advisors held 3,971 shares of Ciena worth $1.95M as of Q2 2026.
  • Harbor Capital Advisors bought 9 Ciena shares in Q2 2026, an estimated $4.59K.
  • Ciena made up 0.13% of Harbor Capital Advisors's portfolio in Q2 2026, its #229 holding.
  • Harbor Capital Advisors first reported a position in Ciena in Q1 2022 and has held it in 12 quarters since.
  • Harbor Capital Advisors's Ciena position peaked at $2.58M in Q3 2024.
  • 1,226 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Harbor Capital Advisors's 13F filing for Q2 2026, filed 7 Aug 2026.