Grantham, Mayo, Van Otterloo & Co (GMO)
CIEN icon

Grantham, Mayo, Van Otterloo & Co (GMO)’s Ciena CIEN Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’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
2025
Q2 		– Sell
-252,853
Closed -$15.3M – 626
2025
Q1 		$15.3M Sell
252,853
-290,703
-53% -$23M 0.05% 203
2024
Q4 		$46.1M Sell
543,556
-114,207
-17% -$8.2M 0.15% 78
2024
Q3 		$40.5M Buy
657,763
+54,913
+9% +$2.89M 0.13% 111
2024
Q2 		$29M Buy
602,850
+24,827
+4% +$1.18M 0.1% 136
2024
Q1 		$28.6M Buy
578,023
+199,829
+53% +$10.5M 0.1% 144
2023
Q4 		$17M Sell
378,194
-15,942
-4% -$703K 0.08% 191
2023
Q3 		$18.6M Buy
394,136
+169,773
+76% +$7.48M 0.09% 191
2023
Q2 		$9.53M Hold
224,363
– – 0.04% 262
2023
Q1 		$11.8M Buy
224,363
+109,101
+95% +$5.45M 0.06% 229
2022
Q4 		$5.88M Sell
115,262
-58,873
-34% -$2.66M 0.03% 310
2022
Q3 		$7.04M Buy
174,135
+157,835
+968% +$7.58M 0.04% 287
2022
Q2 		$745K Buy
+16,300
New +$845K ﹤0.01% 554
2022
Q1 		– Sell
-32,686
Closed -$2.52M – 705
2021
Q4 		$2.52M Buy
32,686
+19,886
+155% +$1.23M 0.01% 433
2021
Q3 		$657K Buy
+12,800
New +$711K ﹤0.01% 567
2020
Q4 		– Sell
-21,043
Closed -$835K – 816
2020
Q3 		$835K Hold
21,043
– – 0.01% 550
2020
Q2 		$1.14M Sell
21,043
-35,000
-62% -$1.74M 0.01% 506
2020
Q1 		$2.23M Buy
56,043
+18,400
+49% +$755K 0.02% 367
2019
Q4 		$1.61M Sell
37,643
-63,457
-63% -$2.42M 0.01% 442
2019
Q3 		$3.97M Sell
101,100
-821,300
-89% -$34.4M 0.03% 327
2019
Q2 		$37.9M Buy
922,400
+77,600
+9% +$2.99M 0.27% 66
2019
Q1 		$31.5M Buy
844,800
+838,100
+12,509% +$32.5M 0.23% 62
2018
Q4 		$227K Buy
+6,700
New +$212K ﹤0.01% 502

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
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Barrow, Hanley, Mewhinney & Strauss
Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
BNP Paribas Asset Management
BNP Paribas Asset Management Paris, France $99.8B AUM 45.22% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return

Grantham, Mayo, Van Otterloo & Co (GMO)'s CIEN Position: Q2 2025 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) sold out of Ciena (CIEN) in Q2 2025, closing a stake of 252,853 shares — an estimated $15.3M sold.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in CIEN in Q4 2018 and held it in 22 quarters. The position peaked at $46.1M in Q4 2024. 562 funds tracked by Wall St. Rank hold CIEN as of Q2 2025.

  • Grantham, Mayo, Van Otterloo & Co (GMO) reported no remaining Ciena position as of Q2 2025 after selling out during the quarter.
  • Grantham, Mayo, Van Otterloo & Co (GMO) sold 252,853 Ciena shares in Q2 2025, an estimated $15.3M.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Ciena in Q4 2018 and held it in 22 quarters.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s Ciena position peaked at $46.1M in Q4 2024.
  • 562 funds tracked by Wall St. Rank held Ciena as of Q2 2025.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q2 2025, filed 13 Aug 2025.