# INVESTMENT MANAGERS SER TR I (UNX)

> Institutional ownership reported to the SEC as of Q2 2026, from Form 13F filings. Source: https://holderbook.com/stocks/UNX/

- Reporting holders: 5
- Reported value: $2.1M
- Held through calls: 38.1%
- Held through puts: 32.4%

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 |
|---|---|---|---|---|
| [CITADEL ADVISORS LLC](https://holderbook.com/funds/1423053-citadel-advisors-llc/) | $1.5M | 0 | 0.0% | 1 |
| [SUSQUEHANNA INTERNATIONAL GROUP, LLP](https://holderbook.com/funds/1446194-susquehanna-international-group-llp/) | $242.6K | 5,253 | 0.0% | 1 |
| [Belvedere Trading LLC](https://holderbook.com/funds/1632341-belvedere-trading-llc/) | $240.3K | 5,194 | 0.0% | 1 |
| [Optiver Holding B.V.](https://holderbook.com/funds/1859606-optiver-holding-b-v/) | $107.1K | 2,320 | 0.0% | 1 |
| [SIMPLEX TRADING, LLC](https://holderbook.com/funds/1488542-simplex-trading-llc/) | $32.6K | 705 | 0.0% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 5 | $2.1M |
| Q1 2026 | 1 | $1.2K |
| Q4 2025 | 4 | $391.3K |
| Q3 2025 | 2 | $282.9K |