# INVESTMENT MANAGERS SER TR I (CLSX)

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

- Reporting holders: 6
- Reported value: $5.2M
- Held through calls: 21.1%
- Held through puts: 24.2%

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/) | $4.8M | 119,550 | 0.0% | 4 |
| [Summit Financial, LLC](https://holderbook.com/funds/1765536-summit-financial-llc/) | $230.7K | 11,250 | 0.0% | 2 |
| [Optiver Holding B.V.](https://holderbook.com/funds/1859606-optiver-holding-b-v/) | $158.3K | 7,720 | 0.0% | 4 |
| [UBS Group AG](https://holderbook.com/funds/1610520-ubs-group-ag/) | $7.3K | 355 | 0.0% | 1 |
| [SIMPLEX TRADING, LLC](https://holderbook.com/funds/1488542-simplex-trading-llc/) | $6.8K | 331 | 0.0% | 2 |
| [GROUP ONE TRADING LLC](https://holderbook.com/funds/932540-group-one-trading-llc/) | $1.1K | 52 | 0.0% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 6 | $5.2M |
| Q1 2026 | 4 | $542.8K |
| Q4 2025 | 7 | $1.6M |
| Q3 2025 | 3 | $1.1M |