Magnetar Financial’s Ciena CIEN Stock Holding History

Magnetar Financial’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	-59,933	Closed	-$3.62M	–	929
2025 Q1	$3.62M	Buy	+59,933	New	+$4.74M	0.05%	209
2023 Q3	–	Sell	-16,457	Closed	-$699K	–	468
2023 Q2	$699K	Sell	16,457 -745	-4%	-$33.9K	0.02%	304
2023 Q1	$903K	Buy	+17,202	New	+$859K	0.02%	398
2021 Q4	–	Sell	-22,793	Closed	-$1.17M	–	1393
2021 Q3	$1.17M	Buy	22,793 +12,918	+131%	+$718K	0.01%	690
2021 Q2	$562	Buy	9,875 +5,607	+131%	+$309K	0.01%	853
2021 Q1	$234K	Buy	+4,268	New	+$230K	﹤0.01%	957
2020 Q4	–	Sell	-8,315	Closed	-$330K	–	749
2020 Q3	$330K	Buy	+8,315	New	+$438K	0.01%	518
2020 Q1	–	Sell	-28,778	Closed	-$1.23M	–	492
2019 Q4	$1.23M	Buy	28,778 +6,136	+27%	+$234K	0.03%	198
2019 Q3	$888K	Sell	22,642 -3,094	-12%	-$130K	0.02%	259
2019 Q2	$1.06M	Buy	25,736 +2,519	+11%	+$96.9K	0.02%	162
2019 Q1	$867K	Buy	+23,217	New	+$902K	0.02%	182
2018 Q4	–	Sell	-21,256	Closed	-$664K	–	324
2018 Q3	$664K	Buy	+21,256	New	+$596K	0.01%	162
2014 Q2	–	Sell	-39,300	Closed	-$894K	–	185
2014 Q1	$894K	Buy	+39,300	New	+$924K	0.02%	169

Other funds holding CIEN

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $30.5B AUM 29.95% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

BNP Paribas Asset Management Paris, France $86.1B AUM 29.11% 1-Year Est. Return

Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return

Magnetar Financial's CIEN Position: Q2 2025 in Review

Magnetar Financial sold out of Ciena (CIEN) in Q2 2025, closing a stake of 59,933 shares — an estimated $3.62M sold.

Magnetar Financial first reported a position in CIEN in Q1 2014 and held it in 13 quarters. The position peaked at $3.62M in Q1 2025. 563 funds tracked by Wall St. Rank hold CIEN as of Q2 2025.

Magnetar Financial reported no remaining Ciena position as of Q2 2025 after selling out during the quarter.
Magnetar Financial sold 59,933 Ciena shares in Q2 2025, an estimated $3.62M.
Magnetar Financial first reported a position in Ciena in Q1 2014 and held it in 13 quarters.
Magnetar Financial's Ciena position peaked at $3.62M in Q1 2025.
563 funds tracked by Wall St. Rank held Ciena as of Q2 2025.

Based on Magnetar Financial's 13F filing for Q2 2025, filed 12 Aug 2025.