CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

Pension

Position in CIEN — Ciena Corp

CIK 1081019 WEST SACRAMENTO, CA

Position in CIEN

as of Mar 31, 2026 · filed May 18, 2026 Compact

Position Value

$81,407,560

+$31,176,026 QoQ

Shares Held

209,689

-2.4% QoQ

Ownership

0.148%

of shares outstanding

% of Portfolio

0.09%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Technology · as of Mar 31, 2026

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM holds $850,011,252 across 24 Communication Equipment names. CIEN ranks #3 (9.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	CSCO	Cisco Systems, Inc.	6,022,626	$467,295,551
2	MSI	Motorola Solutions, Inc.	258,863	$112,338,776
3	CIEN	Ciena Corp This page	209,689	$81,407,560
4	LITE	Lumentum Holdings Inc.	82,030	$57,647,402
5	HPE	Hewlett Packard Enterprise Co	2,102,387	$50,057,834
6	ASTS	AST SpaceMobile, Inc.	261,676	$21,685,090
7	ZBRA	Zebra Technologies Corp	85,598	$17,896,829
8	VIAV	Viavi Solutions Inc.	261,180	$8,692,070

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$81,407,560	209,689	-2.4%	Shares	Sole	2026-05-18
2025-12-31	$50,231,534	214,784	+61.0%	Shares	Sole	2026-02-17
2025-09-30	$19,437,622	133,436	+0.0%	Shares	Sole	2025-11-14
2025-06-30	$10,847,958	133,382	-0.1%	Shares	Sole	2025-08-14
2025-03-31	$8,072,058	133,577	-1.1%	Shares	Sole	2025-05-15
2024-12-31	$11,458,255	135,105	-1.4%	Shares	Sole	2025-03-18
2024-09-30	$8,437,522	136,995	-3.6%	Shares	Sole	2025-04-04
2024-06-30	$6,845,221	142,076	-2.8%	Shares	Sole	2025-04-08
2024-03-31	$7,224,595	146,099	-7.0%	Shares	Sole	2024-05-16
2023-12-31	$7,074,536	157,177	-5.4%	Shares	Sole	2024-02-13
2023-09-30	$7,849,129	166,084	-8.7%	Shares	Sole	2023-11-14
2023-06-30	$7,725,276	181,814	-2.3%	Shares	Sole	2023-08-21
2023-03-31	$9,770,978	186,043	-2.1%	Shares	Sole	2023-05-09
2022-12-31	$9,691,552	190,105	-0.4%	Shares	Sole	2023-02-14
2022-09-30	$7,713,033	190,775	-2.8%	Shares	Sole	2022-11-21
2022-06-30	$8,965,151	196,174	-1.4%	Shares	Sole	2022-08-15
2022-03-31	$12,065,976	199,010	-7.7%	Shares	Sole	2022-05-16
2021-12-31	$16,591,653	215,560	-16.9%	Shares	Sole	2022-02-15
2021-09-30	$13,327,738	259,547	-1.1%	Shares	Sole	2021-11-15
2021-06-30	$14,931,121	262,456	-1.2%	Shares	Sole	2021-08-16
2021-03-31	$14,532,428	265,578	-0.2%	Shares	Sole	2021-05-18
2020-12-31	$14,069,462	266,215	+1.5%	Shares	Sole	2021-02-16
2020-09-30	$10,413,068	262,360	+2.0%	Shares	Sole	2020-11-17
2020-06-30	$13,924,969	257,108	+0.9%	Shares	Sole	2020-08-17
2020-03-31	$10,147,011	254,886	—	Shares	Sole	2020-05-13
No filing history on record for this holder in this stock.