Does First Manhattan own CIEN stock?

Yes. As of its Q2 2026 13F, First Manhattan holds 32,396 shares of CIEN (Ciena), worth $15.9M.

How many shares of CIEN does First Manhattan own?

As of its Q2 2026 13F, First Manhattan holds 32,396 shares of CIEN (Ciena).

As of its Q2 2026 13F, First Manhattan's CIEN position is worth $15.9M.

In Q2 2026, First Manhattan reduced its CIEN position by 1,423 shares (-4.2%).

First Manhattan already held CIEN in its Q4 2018 13F, the earliest on record, and has listed it in 31 quarterly 13F filings.

31 quarters

Position history for First Manhattan Co. LLC's holdings in Ciena Corporation

Current Value

$15.9M

Current Shares

32,396

Total Value Change

+$12.2M

Total Shares Change

-77,198

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	32,396	-4.2%	$15.9M	0.0%	$490.56	0
2026-Q1	Decreased	33,819	-26.7%	$13.1M	0.0%	$388.23	0
2025-Q4	Decreased	46,141	-2.5%	$10.8M	0.0%	$233.87	0
2025-Q3	Decreased	47,341	-10.5%	$6.9M	0.0%	$145.67	0
2025-Q2	Decreased	52,872	-11.6%	$4.3M	0.0%	$81.33	0
2025-Q1	Decreased	59,827	-28.8%	$3.6M	0.0%	$60.43	0
2024-Q4	Decreased	84,044	-1.1%	$7.1M	0.0%	$84.81	0
2024-Q3	Decreased	84,944	-0.3%	$5.2M	0.0%	$61.59	0
2024-Q2	Decreased	85,169	-0.1%	$4.1M	0.0%	$48.18	0
2024-Q1	Decreased	85,219	-1.1%	$4.2M	0.0%	$49.45	0
2023-Q4	Increased	86,138	+8.9%	$3.9M	0.0%	$45.01	29
2023-Q3	Decreased	79,065	-1.7%	$3.7M	0.0%	$47.26	0
2023-Q2	Decreased	80,454	-9.9%	$3.4M	0.0%	$42.49	0
2023-Q1	Decreased	89,312	-6.3%	$4.7M	0.0%	$52.52	0
2022-Q4	Decreased	95,283	-0.6%	$4.9M	0.0%	$50.98	0
2022-Q3	Decreased	95,834	-0.8%	$3.9M	0.0%	$40.43	0
2022-Q2	Unchanged	96,634	0.0%	$4.4M	0.0%	$45.70	0
2022-Q1	Decreased	96,634	-1.1%	$5.9M	0.0%	$60.63	0
2021-Q4	Decreased	97,655	-0.2%	$7.5M	0.0%	$76.97	0
2021-Q3	Decreased	97,894	-1.0%	$5M	0.0%	$51.35	0
2021-Q2	Decreased	98,874	-2.3%	$5.6M	0.0%	$56.89	0
2021-Q1	Unchanged	101,178	0.0%	$5.5M	0.0%	$54.72	0
2020-Q4	Decreased	101,178	-1.2%	$5.3M	0.0%	$52.85	0
2020-Q3	Decreased	102,374	-1.4%	$4.1M	0.0%	$39.69	0
2020-Q2	Decreased	103,824	-0.2%	$5.6M	0.0%	$54.16	0
2020-Q1	Decreased	104,024	-0.3%	$4.1M	0.0%	$39.81	0
2019-Q4	Decreased	104,324	-0.7%	$4.5M	0.0%	$42.69	0
2019-Q3	Decreased	105,094	-1.0%	$4.1M	0.0%	$39.23	0
2019-Q2	Decreased	106,194	-1.8%	$4.4M	0.0%	$41.13	0
2019-Q1	Decreased	108,094	-1.4%	$4M	0.0%	$37.34	0
2018-Q4	First report	109,594	-	$3.7M	0.0%	$33.91	0