4 institutions reported holding $2.5M of FST CORP. (KBSX) in SEC 13F filings for 2026-03-31. Largest institutional holders: Harraden Circle Investments, LLC ($2.2M), UBS Group AG ($212,751), GEODE CAPITAL MANAGEMENT, LLC ($55,104), CITADEL ADVISORS LLC ($15,658). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Harraden Circle Investments, LLC | $2.2M | 1.6M | Hold |
| 2 | UBS Group AG | $212,751 | 159,963 | Hold |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | $55,104 | 41,123 | Hold |
| 4 | CITADEL ADVISORS LLC | $15,658 | 11,685 | New |
Source: SEC Form 13F filings · as of 2026-03-31