Research FrontiersREFR
13F holders, Q4 2025 (December 31)At the end of Q4 2025, 35 institutions reported holding Research Frontiers Inc. (REFR) in their 13F filings, up 5 from Q3 2025. 9 opened new positions and 4 sold out. The largest holders were Mgo One Seven LLC ($1.2M), Vanguard Group Inc. ($1.0M) and BlackRock, Inc. ($793K). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Research Frontiers Inc.
- CUSIP
- 760911107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 9 | $212K |
| Exits | 4 | $27K |
All 13F filers, Q3 2025 → Q4 2025: 331,863 shares bought and 555,937 shares sold, net −224,074 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 35 holders
| Mgo One Seven LLC | 0.02% | Reduce -7.4% | 918,182 | $1.2M |
| Vanguard Group Inc. | 0.00% | Add +19.9% | 774,479 | $1.0M |
| BlackRock, Inc. | 0.00% | Add +0.6% | 605,126 | $793K |
| Focus Partners Wealth | 0.00% | Reduce -44.3% | 496,422 | $650K |
| Geode Capital Management, LLC | 0.00% | Add +1.0% | 311,211 | $408K |
| Susquehanna International Group, LLP | 0.00% | Add +33.9% | 123,002 | $161K |
| State Street Corp. | 0.00% | No change | 105,623 | $138K |
| Kingsview Wealth Management, LLC | 0.00% | Reduce -28.1% | 103,060 | $135K |
| Shufro Rose & Co. LLC | 0.01% | Reduce -13.6% | 97,500 | $128K |
| Renaissance Technologies | 0.00% | Reduce -11.1% | 78,282 | $103K |
| Citadel Advisors | 0.00% | New | 60,312 | $79K |
| Northern Trust Corp. | 0.00% | Add +1.4% | 52,630 | $69K |
| Raymond James Financial Inc. | 0.00% | Add +3.9% | 42,932 | $56K |
| Two Sigma Securities, LLC | 0.00% | New | 22,874 | $30K |
| Charles Schwab Investment Management Inc. | 0.00% | No change | 21,870 | $29K |
| XTX Topco Ltd | 0.00% | New | 21,057 | $28K |
| Virtu Financial LLC | 0.00% | New | 20,798 | $27K |
| FreeGulliver LLC | 0.01% | No change | 20,000 | $26K |
| HM Payson & Co. | 0.00% | No change | 20,000 | $26K |
| Jane Street Group, LLC | 0.00% | New | 15,091 | $20K |
| Halbert Hargrove Global Advisors, LLC | 0.00% | New | 15,000 | $20K |
| Mercer Global Advisors Inc. | 0.00% | No change | 14,000 | $18K |
| Schonfeld Strategic Advisors LLC | 0.00% | Add +2.2% | 13,836 | $18K |
| HB Wealth Management, LLC | 0.00% | No change | 10,000 | $13K |
| Osaic Holdings, Inc. | 0.00% | New | 4,000 | $5K |
| Morgan Stanley | 0.00% | No change | 3,935 | $5K |
| UBS Group AG | 0.00% | Reduce -60.2% | 3,002 | $4K |
| Rockefeller Capital Management L.P. | 0.00% | New | 2,700 | $4K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +61.4% | 2,069 | $3K |
| JPMorgan Chase & Co. | 0.00% | No change | 1,042 | $1K |
| NewEdge Advisors, LLC | 0.00% | Reduce -87.3% | 250 | $328 |
| Fairman Group, LLC | 0.00% | No change | 125 | $164 |
| Bank of America Corp. | 0.00% | Add +4.0% | 26 | $34 |
| Citigroup Inc. | 0.00% | New | 1 | $1 |
| Royal Bank of Canada | 0.00% | Add +396.6% | 144 | $0 |
"% of holder's portfolio" is REFR's weight in each manager's 13F, not the share of Research Frontiers Inc. the manager owns.