43 institutions reported holding $3.5M of RESEARCH FRONTIERS INC (REFR) in SEC 13F filings for 2026-03-31. Largest institutional holders: MGO ONE SEVEN LLC ($828,200), BlackRock, Inc. ($559,727), VANGUARD CAPITAL MANAGEMENT LLC ($512,475), Focus Partners Wealth ($456,708), GEODE CAPITAL MANAGEMENT, LLC ($273,168). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | MGO ONE SEVEN LLC | $828,200 | 918,182 | Trimmed |
| 2 | BlackRock, Inc. | $559,727 | 608,398 | Added |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | $512,475 | 568,154 | New |
| 4 | Focus Partners Wealth | $456,708 | 496,422 | Hold |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $273,168 | 302,761 | Trimmed |
| 6 | VANGUARD FIDUCIARY TRUST CO | $159,681 | 177,030 | New |
| 7 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $154,921 | 171,786 | Added |
| 8 | STATE STREET CORP | $95,272 | 105,623 | Hold |
| 9 | SHUFRO ROSE & CO LLC | $89,700 | 97,500 | Hold |
| 10 | RENAISSANCE TECHNOLOGIES LLC | $62,836 | 68,300 | Trimmed |
| 11 | NORTHERN TRUST CORP | $48,420 | 52,630 | Hold |
| 12 | Kingsview Wealth Management, LLC | $41,354 | 44,950 | Trimmed |
| 13 | XTX Topco Ltd | $29,739 | 32,970 | Added |
| 14 | FreeGulliver LLC | $18,040 | 20,000 | Hold |
| 15 | HM PAYSON & CO | $18,040 | 20,000 | Hold |
| 16 | GOLDMAN SACHS GROUP INC | $17,026 | 18,506 | New |
| 17 | RAYMOND JAMES FINANCIAL INC | $16,450 | 17,880 | Trimmed |
| 18 | TWO SIGMA SECURITIES, LLC | $14,544 | 15,809 | Trimmed |
| 19 | MERCER GLOBAL ADVISORS INC /ADV | $12,880 | 14,000 | Hold |
| 20 | Focus Partners Advisor Solutions, LLC | $12,823 | 14,091 | New |
| 21 | Schonfeld Strategic Advisors LLC | $12,748 | 13,857 | Added |
| 22 | JANE STREET GROUP, LLC | $10,649 | 11,575 | Trimmed |
| 23 | Vanguard Global Advisers, LLC | $10,019 | 11,108 | New |
| 24 | Farrell Financial LLC | $9,432 | 10,457 | New |
| 25 | HB Wealth Management, LLC | $9,020 | 10,000 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31