Does Loomis, Sayles own CIEN stock?

Yes. As of its Q2 2026 13F, Loomis, Sayles holds 38,920 shares of CIEN (Ciena), worth $19.1M.

How many shares of CIEN does Loomis, Sayles own?

As of its Q2 2026 13F, Loomis, Sayles holds 38,920 shares of CIEN (Ciena).

As of its Q2 2026 13F, Loomis, Sayles' CIEN position is worth $19.1M.

In Q2 2026, Loomis, Sayles reduced its CIEN position by 52,393 shares (-57.4%).

Loomis, Sayles already held CIEN in its Q4 2018 13F, the earliest on record, and has listed it in 29 quarterly 13F filings.

30 quarters

Position history for Loomis, Sayles & Co., L.P.'s holdings in Ciena Corporation

Current Value

$19.1M

Current Shares

38,920

Total Value Change

+$8.8M

Total Shares Change

-263,143

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	38,920	-57.4%	$19.1M	0.0%	$490.56	0
2026-Q1	Decreased	91,313	-37.5%	$35.5M	0.0%	$388.23	0
2025-Q4	Decreased	145,982	-53.1%	$34.1M	0.0%	$233.87	0
2025-Q3	Decreased	311,353	-12.9%	$45.4M	0.1%	$145.67	0
2025-Q2	Decreased	357,448	-15.1%	$29.1M	0.0%	$81.33	0
2025-Q1	Decreased	420,901	-2.2%	$25.4M	0.0%	$60.43	0
2024-Q4	Decreased	430,510	-3.0%	$36.5M	0.0%	$84.81	0
2024-Q3	Decreased	443,927	-2.3%	$27.3M	0.0%	$61.59	0
2024-Q2	Decreased	454,152	-26.9%	$21.9M	0.0%	$48.18	0
2024-Q1	Decreased	621,350	-3.9%	$30.7M	0.0%	$49.45	0
2023-Q4	Increased	646,627	+5.2%	$29.1M	0.0%	$45.01	30
2023-Q3	Decreased	614,759	-11.7%	$29.1M	0.0%	$47.26	0
2023-Q2	Decreased	696,345	-3.3%	$29.6M	0.0%	$42.49	0
2023-Q1	Decreased	720,339	-0.4%	$37.8M	0.1%	$52.52	0
2022-Q4	Increased	722,988	+7.8%	$36.9M	0.1%	$50.98	31
2022-Q3	Decreased	670,985	-1.0%	$27.1M	0.1%	$40.43	0
2022-Q2	Decreased	677,854	-0.7%	$31M	0.1%	$45.70	0
2022-Q1	Increased	682,774	+3.3%	$41.4M	0.1%	$60.63	30
2021-Q4	Increased	661,188	+14.6%	$50.9M	0.1%	$76.97	33
2021-Q3	Increased	576,959	+13.3%	$29.6M	0.0%	$51.35	33
2021-Q2	New	509,438	-	$29M	0.0%	$56.89	40
2020-Q4	Exited	0	-100.0%	$0	0.0%	$52.85	0
2020-Q3	Decreased	312,788	-42.7%	$12.4M	0.0%	$39.69	0
2020-Q2	Increased	546,187	+8.6%	$29.6M	0.0%	$54.16	31
2020-Q1	Increased	502,752	+5.8%	$20M	0.0%	$39.81	30
2019-Q4	Decreased	475,336	-7.0%	$20.3M	0.0%	$42.69	0
2019-Q3	Increased	511,236	+34.5%	$20.1M	0.0%	$39.23	37
2019-Q2	Decreased	380,179	-5.7%	$15.6M	0.0%	$41.13	0
2019-Q1	Increased	403,178	+33.5%	$15.1M	0.0%	$37.34	36
2018-Q4	First report	302,063	-	$10.2M	0.0%	$33.91	0