# STAK INC (STAK)

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

- Reporting holders: 8
- Reported value: $1.2M
- Shares held by institutions: 325,905 of 13,210,349 outstanding
- 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 |
|---|---|---|---|---|
| [HRT FINANCIAL LP](https://holderbook.com/funds/1475597-hrt-financial-lp/) | $500.0K | 131,486 | 0.0% | 1 |
| [JANE STREET GROUP, LLC](https://holderbook.com/funds/1595888-jane-street-group-llc/) | $499.9K | 131,219 | 0.0% | 2 |
| [XTX Topco Ltd](https://holderbook.com/funds/1828301-xtx-topco-ltd/) | $81.4K | 21,355 | 0.0% | 1 |
| [UBS Group AG](https://holderbook.com/funds/1610520-ubs-group-ag/) | $77.1K | 20,236 | 0.0% | 5 |
| [Scientech Research LLC](https://holderbook.com/funds/2011556-scientech-research-llc/) | $62.9K | 16,508 | 0.1% | 1 |
| [Tower Research Capital LLC (TRC)](https://holderbook.com/funds/1533421-tower-research-capital-llc-trc/) | $19.1K | 5,000 | 0.0% | 2 |
| [Caitong International Asset Management Co., Ltd](https://holderbook.com/funds/1963355-caitong-international-asset-management-co-ltd/) | $4 | 1 | 0.0% | 1 |
| [ROYAL BANK OF CANADA](https://holderbook.com/funds/1000275-royal-bank-of-canada/) | $0 | 100 | 0.0% | 1 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q2 2026 | 8 | $1.2M |
| Q1 2026 | 5 | $120.4K |
| Q4 2025 | 4 | $38.9K |
| Q3 2025 | 3 | $59.1K |
| Q2 2025 | 2 | $51.2K |
| Q1 2025 | 1 | $5.0K |