Ontario Teachers' Pension Plan Board’s Ciena CIEN Stock Holding History

Ontario Teachers' Pension Plan Board’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	-9,021	Closed	-$545K	–	340
2025 Q1	$545K	Buy	+9,021	New	+$713K	0.01%	348
2024 Q3	–	Sell	-57,038	Closed	-$2.75M	–	437
2024 Q2	$2.75M	Buy	57,038 +18,398	+48%	+$873K	0.03%	161
2024 Q1	$1.91M	Buy	+38,640	New	+$2.04M	0.02%	255
2019 Q4	–	Sell	-5,587	Closed	-$219K	–	533
2019 Q3	$219K	Hold	5,587	–	–	﹤0.01%	500
2019 Q2	$230K	Hold	5,587	–	–	﹤0.01%	524
2019 Q1	$209K	Buy	+5,587	New	+$217K	﹤0.01%	530

Other funds holding CIEN

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

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

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Barrow, Hanley, Mewhinney & Strauss Dallas, Texas $33B AUM 40.62% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

BNP Paribas Asset Management Paris, France $99.8B AUM 45.22% 1-Year Est. Return

Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return

William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return

Ontario Teachers' Pension Plan Board's CIEN Position: Q2 2025 in Review

Ontario Teachers' Pension Plan Board sold out of Ciena (CIEN) in Q2 2025, closing a stake of 9,021 shares — an estimated $545K sold.

Ontario Teachers' Pension Plan Board first reported a position in CIEN in Q1 2019 and held it in 6 quarters. The position peaked at $2.75M in Q2 2024. 562 funds tracked by Wall St. Rank hold CIEN as of Q2 2025.

Ontario Teachers' Pension Plan Board reported no remaining Ciena position as of Q2 2025 after selling out during the quarter.
Ontario Teachers' Pension Plan Board sold 9,021 Ciena shares in Q2 2025, an estimated $545K.
Ontario Teachers' Pension Plan Board first reported a position in Ciena in Q1 2019 and held it in 6 quarters.
Ontario Teachers' Pension Plan Board's Ciena position peaked at $2.75M in Q2 2024.
562 funds tracked by Wall St. Rank held Ciena as of Q2 2025.

Based on Ontario Teachers' Pension Plan Board's 13F filing for Q2 2025, filed 8 Aug 2025.