3 institutions reported holding $1 of FOUNDER SPAC (RBTCW) in SEC 13F filings for 2026-03-31. Largest institutional holders: Ancora Advisors LLC ($1), Farther Finance Advisors, LLC ($0), METEORA CAPITAL, LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Ancora Advisors LLC | $1 | 8,150 | Hold |
| 2 | Farther Finance Advisors, LLC | $0 | 49 | Hold |
| 3 | METEORA CAPITAL, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31