3 institutions reported holding $2.5M of SPIRE GLOBAL INC (SPIR.WS) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($1.2M), GROUP ONE TRADING LLC ($712,028), SIMPLEX TRADING, LLC ($610,130). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $1.2M | 95,200 | Added |
| 2 | GROUP ONE TRADING LLC | $712,028 | 56,600 | Trimmed |
| 3 | SIMPLEX TRADING, LLC | $610,130 | 48,500 | Trimmed |
Source: SEC Form 13F filings · as of 2026-03-31