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Equibles

Robeco Institutional Asset Management B.V.

Position in CIEN — Ciena Corp

CIK 1418773 ROTTERDAM, P7
Back to CIEN Full portfolio

Position in CIEN

as of Jun 30, 2026 · filed Jul 21, 2026
Position Value
$156,628,449
+$52,604,939 QoQ
Shares Held
319,285
+19.2% QoQ
Ownership
0.225%
of shares outstanding
% of Portfolio
0.20%
of 13F equity value
Holder Rank
#50
of 1,227 holders
Holding Since
Mar 2020
12 quarters on record
Voting authority Sole 54% Shared 0% None 46%

Common Shares in CIEN Over Time

Shares Held

Position Value (USD)

Position in Communication Equipment

Technology · as of Jun 30, 2026

Robeco Institutional Asset Management B.V. holds $1,009,369,084 across 10 Communication Equipment names. CIEN ranks #2 (15.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 CSCO
Cisco Systems, Inc.
 5,466,320 $642,073,947
2 CIEN
Ciena Corp
This page 		319,285 $156,628,449
3 MSI
Motorola Solutions, Inc.
 158,673 $65,895,310
4 ZBRA
Zebra Technologies Corp
 190,705 $50,204,998
5 LITE
Lumentum Holdings Inc.
 53,071 $45,538,102
6 HPE
Hewlett Packard Enterprise Co
 891,086 $40,196,889
7 NTGR
Netgear, Inc.
 234,545 $5,476,625
8 VIAV
Viavi Solutions Inc.
 45,781 $2,186,042

All Filings in CIEN

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12 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $156,628,449 319,285
2026-03-31 $104,023,510 267,943
2025-12-31 $12,201,699 52,173
2025-09-30 $216,465 1,486
2025-06-30 $3,440,015 42,297
2025-03-31 $2,556,007 42,297
2024-12-31 $3,587,208 42,297
2024-09-30 $2,605,072 42,297
2024-06-30 $2,037,869 42,297
2020-09-30 $7,668,108 193,200
2020-06-30 $9,624,123 177,698
2020-03-31 $10,283,520 258,315