Position in CIEN
as of Mar 31, 2026
· filed May 8, 2026
Position Value
$2,033,936
+$580,902 QoQ
Shares Held
5,239
-15.7% QoQ
Ownership
0.004%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2021
19 quarters on record
Voting authority
Sole 92%
Shared 0%
None 8%
Common Shares in CIEN Over Time
Shares Held
Position Value (USD)
Position in Communication Equipment
Technology · as of Jun 30, 2026Cornerstone Investment Partners, LLC holds $1,312,363 across 3 Communication Equipment names.
All Filings in CIEN
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19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,033,936 | 5,239 | Shares | Sole | 2026-05-08 | |
| 2025-12-31 | $1,453,034 | 6,213 | Shares | Sole | 2026-01-29 | |
| 2025-09-30 | $920,488 | 6,319 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $748,561 | 9,204 | Shares | Sole | 2025-08-06 | |
| 2025-03-31 | $562,301 | 9,305 | Shares | Sole | 2025-04-30 | |
| 2024-12-31 | $1,100,240 | 12,973 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $762,237 | 12,376 | Shares | Sole | 2024-11-13 | |
| 2024-06-30 | $584,519 | 12,132 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $592,559 | 11,983 | Shares | Sole | 2024-04-29 | |
| 2023-12-31 | $494,749 | 10,992 | Shares | Sole | 2024-01-31 | |
| 2023-09-30 | $534,179 | 11,303 | Shares | Sole | 2023-11-13 | |
| 2023-06-30 | $483,196 | 11,372 | Shares | Sole | 2023-08-04 | |
| 2023-03-31 | $546,208 | 10,400 | Shares | Sole | 2023-04-21 | |
| 2022-12-31 | $537,023 | 10,534 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $420,472 | 10,400 | Shares | Sole | 2022-11-04 | |
| 2022-06-30 | $473,634 | 10,364 | Shares | Sole | 2022-07-29 | |
| 2022-03-31 | $518,083 | 8,545 | Shares | Sole | 2022-04-29 | |
| 2021-12-31 | $676,104 | 8,784 | Shares | Sole | 2022-02-07 | |
| 2021-09-30 | $264,811 | 5,157 | Shares | Sole | 2021-10-25 | |
| No filing history on record for this holder in this stock. | ||||||