RESEARCH FRONTIERS INC (REFR) Top Institutional Shareholders
RESEARCH FRONTIERS INC (REFR) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $3.48M in REFR holdings during the latest filing period.
Mgo One Seven Llc is currently the largest disclosed institutional shareholder of REFR tracked by InsiderSet, reporting ownership valued at approximately $828,200 in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $588,554.662, representing an estimated loss of -28.94% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 91% of the total disclosed REFR value among the investors covered in this analysis. Major shareholders include Mgo One Seven Llc, Blackrock, Inc., Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in RESEARCH FRONTIERS INC (REFR).
This page ranks the largest institutional REFR shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
34
Total Reported Value
$3.48M
Largest Holder
Mgo One Seven Llc
Largest Position
$828,200
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
45
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Mgo One Seven Llc | 0.02% | 918,182 | $828,200 | $588,555 | -$239,645 | -28.94% | |
| Blackrock, Inc. | 0.00% | 608,398 | $559,727 | $389,983 | -$169,744 | -30.33% | |
| Vanguard Capital Management Llc | 0.00% | 568,154 | $512,475 | $364,187 | -$148,288 | -28.94% | |
| Focus Partners Wealth | 0.00% | 496,422 | $456,708 | $318,207 | -$138,501 | -30.33% | |
| Geode Capital Management, Llc | 0.00% | 302,761 | $273,168 | $194,070 | -$79,098 | -28.96% | |
| Vanguard Fiduciary Trust Co | 0.00% | 177,030 | $159,681 | $113,476 | -$46,205 | -28.94% | |
| Susquehanna International Group, Llp | 0.00% | 156,786 | $141,421 | $100,500 | -$40,921 | -28.94% | |
| State Street Corp | 0.00% | 105,623 | $95,272 | $67,704 | -$27,568 | -28.94% | |
| Shufro Rose & Co Llc | 0.01% | 97,500 | $89,700 | $62,498 | -$27,203 | -30.33% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 68,300 | $62,836 | $43,780 | -$19,056 | -30.33% |
| Northern Trust Corp | 0.00% | 52,630 | $48,420 | $33,736 | -$14,684 | -30.33% | |
| Kingsview Wealth Management, Llc | 0.00% | 44,950 | $41,354 | $28,813 | -$12,541 | -30.33% | |
| Xtx Topco Ltd | 0.00% | 32,970 | $29,739 | $21,134 | -$8,605 | -28.94% | |
| Freegulliver Llc | 0.01% | 20,000 | $18,040 | $12,820 | -$5,220 | -28.94% | |
| Hm Payson & Co | 0.00% | 20,000 | $18,040 | $12,820 | -$5,220 | -28.94% | |
| Goldman Sachs Group Inc | 0.00% | 18,506 | $17,026 | $11,862 | -$5,164 | -30.33% | |
| Raymond James Financial Inc | 0.00% | 17,880 | $16,450 | $11,461 | -$4,989 | -30.33% | |
| Two Sigma Securities, Llc | 0.00% | 15,809 | $14,544 | $10,134 | -$4,410 | -30.32% | |
| Mercer Global Advisors Inc | 0.00% | 14,000 | $12,880 | $8,974 | -$3,906 | -30.33% | |
| Focus Partners Advisor Solutions, Llc | 0.00% | 14,091 | $12,823 | $9,032 | -$3,791 | -29.56% | |
| Schonfeld Strategic Advisors Llc | 0.00% | 13,857 | $12,748 | $8,882 | -$3,866 | -30.32% | |
| Jane Street Group, Llc | 0.00% | 11,575 | $10,649 | $7,420 | -$3,229 | -30.33% | |
| Vanguard Global Advisers, Llc | 0.00% | 11,108 | $10,019 | $7,120 | -$2,899 | -28.93% | |
| Farrell Financial Llc | 0.01% | 10,457 | $9,432 | $6,703 | -$2,729 | -28.93% | |
| Hb Wealth Management, Llc | 0.00% | 10,000 | $9,020 | $6,410 | -$2,610 | -28.94% | |
| Tower Research Capital Llc (Trc) | 0.00% | 6,055 | $5,571 | $3,881 | -$1,690 | -30.33% | |
| Osaic Holdings, Inc. | 0.00% | 4,000 | $3,680 | $2,564 | -$1,116 | -30.33% | |
| Morgan Stanley | 0.00% | 3,935 | $3,620 | $2,522 | -$1,098 | -30.32% | |
| Mai Capital Management | 0.00% | 1,500 | $1,353 | $962 | -$392 | -28.94% | |
| Ubs Group Ag | 0.00% | 1,174 | $1,080 | $753 | -$327 | -30.32% | |
| Citigroup Inc | 0.00% | 438 | $395 | $281 | -$114 | -28.92% | |
| Simplex Trading, Llc | 0.00% | 332 | $305 | $213 | -$92 | -30.23% | |
| Fairman Group, Llc | 0.00% | 125 | $113 | $80 | -$33 | -29.09% | |
| Sbi Securities Co., Ltd. | 0.00% | 5 | $5 | $3 | -$2 | -35.90% |
Frequently asked questions about REFR
Who owns the most REFR stock?
The largest holders of REFR are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for RESEARCH FRONTIERS INC (REFR).
Is REFR widely held by superinvestors?
Many widely followed stocks like REFR appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly REFR is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.