CONTEMPORARY AMPEREX (CYATY)
Institutional ownership reported to the SEC as of Q2 2026, across 4 quarters.
8
Reporting holders
$10.7M
Reported value
0.0%
Held as options
+1
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Boston Common Asset Management, LLC | $4.7M | 209,775 | 0.28% | 3q | -21.1%-$1.3M |
| Douglass Winthrop Advisors, LLC | $3.2M | 140,786 | 0.05% | new | NEW |
| ZEVENBERGEN CAPITAL INVESTMENTS LLC | $2.2M | 96,025 | 0.05% | new | NEW |
| PNC Financial Services Group, Inc. | $235.4K | 10,483 | 0.00% | 4q | +30.3%+$54.8K |
| RIVERBRIDGE PARTNERS LLC | $233.4K | 10,392 | 0.01% | 4q | HELD |
| RHUMBLINE ADVISERS | $215.4K | 9,590 | 0.00% | 4q | +2.6%+$5.5K |
| ESSEX INVESTMENT MANAGEMENT CO LLC | $16.2K | 722 | 0.00% | 3q | HELD |
| IMA Advisory Services, Inc. | $22 | 1 | 0.00% | 2q | HELD |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 8 | $10.7M | 477,774 | 2 | 2 | 1 | 0.0% |
| Q1 2026 | 7 | $5.9M | 294,635 | 2 | 3 | 0 | 0.0% |
| Q4 2025 | 6 | $3.9M | 238,732 | 2 | 2 | 1 | 0.0% |
| Q3 2025 | 5 | $1.1M | 59,113 | 5 | 0 | 0 | 0.0% |