6 institutions reported holding $4.8M of SPINNAKER ETF SERIES (FMDG) in SEC 13F filings for 2026-03-31. Largest institutional holders: Atlantic Union Bankshares Corp ($2.6M), IMC-Chicago, LLC ($1.3M), GTS SECURITIES LLC ($476,142), GROUP ONE TRADING LLC ($346,290), SIMPLEX TRADING, LLC ($162,960). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Atlantic Union Bankshares Corp | $2.6M | 299,124 | New |
| 2 | IMC-Chicago, LLC | $1.3M | 31,000 | New |
| 3 | GTS SECURITIES LLC | $476,142 | 55,301 | Added |
| 4 | GROUP ONE TRADING LLC | $346,290 | 8,500 | New |
| 5 | SIMPLEX TRADING, LLC | $162,960 | 4,000 | Trimmed |
| 6 | Royal Bank of Canada | $0 | 30 | New |
Source: SEC Form 13F filings · as of 2026-03-31