# QUANTUM CYBER NV (QUCY)

> Institutional ownership reported to the SEC as of Q3 2026, from Form 13F filings. Source: https://holderbook.com/stocks/QUCY/

- Reporting holders: 1
- Reported value: $13
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [PROFESSIONAL ADVISORY SERVICES INC](https://holderbook.com/funds/894205-professional-advisory-services-inc/) | $13 | 10,000 | 0.0% | 2 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q3 2026 | 1 | $13 |
| Q2 2026 | 18 | $360.8K |
| Q1 2026 | 16 | $143.5K |
| Q4 2025 | 18 | $1.3M |
| Q3 2025 | 13 | $717.9K |
| Q2 2025 | 14 | $543.7K |
| Q1 2025 | 11 | $754.2K |
| Q4 2024 | 7 | $1.1M |