8 institutions reported holding $117,892 of STAK INC (STAK) in SEC 13F filings for 2026-03-31. Largest institutional holders: JANE STREET GROUP, LLC ($54,403), MORGAN STANLEY ($50,000), UBS Group AG ($8,089), Tower Research Capital LLC (TRC) ($2,900), WELLS FARGO & COMPANY/MN ($2,500). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | JANE STREET GROUP, LLC | $54,403 | 54,403 | New |
| 2 | MORGAN STANLEY | $50,000 | 50,000 | New |
| 3 | UBS Group AG | $8,089 | 8,089 | Added |
| 4 | Tower Research Capital LLC (TRC) | $2,900 | 2,900 | New |
| 5 | WELLS FARGO & COMPANY/MN | $2,500 | 2,500 | New |
| 6 | Moors & Cabot, Inc. | $0 | 0 | Exited |
| 7 | XTX Topco Ltd | $0 | 0 | Exited |
| 8 | CITADEL ADVISORS LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31