20 institutions reported holding $1.4M of BRIDGELINE DIGITAL INC (BLIN) in SEC 13F filings for 2026-03-31. Largest institutional holders: BARD ASSOCIATES INC ($858,983), RENAISSANCE TECHNOLOGIES LLC ($126,507), GEODE CAPITAL MANAGEMENT, LLC ($100,920), Lido Advisors, LLC ($62,941), VANGUARD CAPITAL MANAGEMENT LLC ($60,660). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | BARD ASSOCIATES INC | $858,983 | 1.1M | Trimmed |
| 2 | RENAISSANCE TECHNOLOGIES LLC | $126,507 | 158,729 | Added |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | $100,920 | 126,581 | Added |
| 4 | Lido Advisors, LLC | $62,941 | 78,973 | Added |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $60,660 | 76,110 | New |
| 6 | CITADEL ADVISORS LLC | $44,700 | 56,085 | Trimmed |
| 7 | VANGUARD FIDUCIARY TRUST CO | $27,640 | 34,680 | New |
| 8 | XTX Topco Ltd | $18,989 | 23,825 | Trimmed |
| 9 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $18,370 | 23,049 | Trimmed |
| 10 | LPL Financial LLC | $15,151 | 19,010 | New |
| 11 | STATE STREET CORP | $12,911 | 16,200 | Hold |
| 12 | NORTHERN TRUST CORP | $9,206 | 11,551 | Hold |
| 13 | Schonfeld Strategic Advisors LLC | $8,150 | 10,226 | Trimmed |
| 14 | Tower Research Capital LLC (TRC) | $3,599 | 4,516 | Trimmed |
| 15 | CITIGROUP INC | $515 | 646 | Trimmed |
| 16 | TD Waterhouse Canada Inc. | $179 | 200 | New |
| 17 | UBS Group AG | $2 | 2 | Trimmed |
| 18 | BANK OF AMERICA CORP /DE/ | $0 | 0 | Exited |
| 19 | DRW Securities, LLC | $0 | 0 | Exited |
| 20 | Virtu Financial LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31