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John Overdeck’s Ciena CIEN Stock Holding History

John Overdeck’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 		$2.99M Buy
6,100
+4,200
+221% +$2.14M ﹤0.01% 2629
2026
Q1 		$738K Buy
+1,900
New +$581K ﹤0.01% 3463
2021
Q4 		– Sell
-12,200
Closed -$626K – 4343
2021
Q3 		$626K Buy
+12,200
New +$678K ﹤0.01% 3043
2021
Q1 		– Sell
-11,500
Closed -$608K – 3857
2020
Q4 		$608K Buy
11,500
+3,500
+44% +$156K ﹤0.01% 2360
2020
Q3 		$318K Sell
8,000
-900
-10% -$47.4K ﹤0.01% 2552
2020
Q2 		$482K Sell
8,900
-17,300
-66% -$860K ﹤0.01% 2018
2020
Q1 		$1.04M Buy
+26,200
New +$1.07M 0.01% 1377
2019
Q4 		– Sell
-12,600
Closed -$494K – 3673
2019
Q3 		$494K Sell
12,600
-2,400
-16% -$101K ﹤0.01% 2568
2019
Q2 		$617K Buy
+15,000
New +$577K ﹤0.01% 2333
2018
Q3 		– Sell
-30,900
Closed -$819K – 3213
2018
Q2 		$819K Buy
+30,900
New +$785K ﹤0.01% 2294
2017
Q4 		– Sell
-16,600
Closed -$365K – 3120
2017
Q3 		$365K Buy
+16,600
New +$397K ﹤0.01% 2324
2017
Q2 		– Sell
-16,700
Closed -$394K – 2992
2017
Q1 		$394K Buy
16,700
+7,200
+76% +$177K ﹤0.01% 2467
2016
Q4 		$232K Buy
+9,500
New +$208K ﹤0.01% 2871

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

John Overdeck's CIEN Position: Q2 2026 in Review

John Overdeck increased its Ciena (CIEN) stake by 173% in Q2 2026, buying an estimated $3.07M and bringing the position to 9,500 shares worth $4.66M. The position accounts for ﹤0.01% of the portfolio, ranked #2212.

John Overdeck first reported a position in CIEN in Q2 2013 and has held it in 30 quarters since. The position peaked at $28.1M in Q1 2025. 1,217 funds tracked by Wall St. Rank hold CIEN as of Q2 2026.

  • John Overdeck held 9,500 shares of Ciena worth $4.66M as of Q2 2026.
  • John Overdeck bought 6,014 Ciena shares in Q2 2026, an estimated $3.07M.
  • Ciena made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #2212 holding.
  • John Overdeck first reported a position in Ciena in Q2 2013 and has held it in 30 quarters since.
  • John Overdeck's Ciena position peaked at $28.1M in Q1 2025.
  • 1,217 funds tracked by Wall St. Rank held Ciena as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.