Research FrontiersREFR
13F holders, Q1 2026 (March 31)35holders
6new positions
8sold out
1famous investor
$0.91avg. 13F price*
At the end of Q1 2026, 35 institutions reported holding Research Frontiers Inc. (REFR) in their 13F filings, unchanged from Q4 2025. 6 opened new positions and 8 sold out. The largest holders were Mgo One Seven LLC ($828K), BlackRock, Inc. ($560K) and Vanguard Capital Management LLC ($512K). One famous investor held it Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Research Frontiers Inc.
- CUSIP
- 760911107
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 6 | $41K |
| Exits | 8 | $158K |
All 13F filers, Q4 2025 → Q1 2026: 98,304 shares bought and 235,103 shares sold, net −136,799 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 35 holders
| Mgo One Seven LLC | 0.02% | No change | 918,182 | $828K |
| BlackRock, Inc. | 0.00% | Add +0.5% | 608,398 | $560K |
| Vanguard Capital Management LLC | 0.00% | — | 568,154 | $512K |
| Focus Partners Wealth | 0.00% | No change | 496,422 | $457K |
| Geode Capital Management, LLC | 0.00% | Reduce -2.7% | 302,761 | $273K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 177,030 | $160K |
| Susquehanna International Group, LLP | 0.00% | Add +27.5% | 156,786 | $141K |
| State Street Corp. | 0.00% | No change | 105,623 | $95K |
| Shufro Rose & Co. LLC | 0.01% | No change | 97,500 | $90K |
| Renaissance Technologies | 0.00% | Reduce -12.8% | 68,300 | $63K |
| Northern Trust Corp. | 0.00% | No change | 52,630 | $48K |
| Kingsview Wealth Management, LLC | 0.00% | Reduce -56.4% | 44,950 | $41K |
| XTX Topco Ltd | 0.00% | Add +56.6% | 32,970 | $30K |
| FreeGulliver LLC | 0.01% | No change | 20,000 | $18K |
| HM Payson & Co. | 0.00% | No change | 20,000 | $18K |
| Goldman Sachs Group Inc. | 0.00% | New | 18,506 | $17K |
| Raymond James Financial Inc. | 0.00% | Reduce -58.4% | 17,880 | $16K |
| Two Sigma Securities, LLC | 0.00% | Reduce -30.9% | 15,809 | $15K |
| Mercer Global Advisors Inc. | 0.00% | No change | 14,000 | $13K |
| Focus Partners Advisor Solutions, LLC | 0.00% | New | 14,091 | $13K |
| Schonfeld Strategic Advisors LLC | 0.00% | Add +0.1% | 13,857 | $13K |
| Jane Street Group, LLC | 0.00% | Reduce -23.3% | 11,575 | $11K |
| Vanguard Global Advisers, LLC | 0.00% | — | 11,108 | $10K |
| Farrell Financial LLC | 0.01% | New | 10,457 | $9K |
| HB Wealth Management, LLC | 0.00% | No change | 10,000 | $9K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +192.7% | 6,055 | $6K |
| Osaic Holdings, Inc. | 0.00% | No change | 4,000 | $4K |
| Morgan Stanley | 0.00% | No change | 3,935 | $4K |
| MAI Capital Management | 0.00% | New | 1,500 | $1K |
| UBS Group AG | 0.00% | Reduce -60.9% | 1,174 | $1K |
| JPMorgan Chase & Co. | 0.00% | No change | 1,042 | $948 |
| Citigroup Inc. | 0.00% | Add +43700.0% | 438 | $395 |
| Simplex Trading, LLC | 0.00% | New | 332 | $305 |
| Fairman Group, LLC | 0.00% | No change | 125 | $113 |
| SBI Securities Co., Ltd. | 0.00% | New | 5 | $5 |
"% of holder's portfolio" is REFR's weight in each manager's 13F, not the share of Research Frontiers Inc. the manager owns.