REFR — RESEARCH FRONTIERS INC
As of Q2 2026, 9 SEC-registered investment managers reported holding REFR (RESEARCH FRONTIERS INC) in their latest 13F filings, with a combined reported value of $500.82K across 962.96K shares. That is -8.8% by share count (-93.18K shares) versus the previous quarter, while reported value moved -48.2%. Ownership is concentrated: the five largest holders account for 98.1% of reported value and the top ten for 100.0%.
Compared with the prior quarter, 2 opened new positions, 3 added to existing stakes, 3 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
| Fund | Quarter | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|---|
| Vanguard Group history | Q4 2025 | 774.48K | $1.01M | 0.00% | Add |
| BlackRock Inc history | Q2 2026 | 532.54K | $276.92K | 0.00% | Reduce |
| Geode Capital Management history | Q2 2026 | 305.85K | $159.09K | 0.00% | Add |
| Point72 Asset Management history | Q4 2021 | 24.45K | $42.00K | 0.00% | New |
| Charles Schwab Investment Management history | Q4 2025 | 21.87K | $28.65K | 0.00% | Hold |
| Northern Trust Corp history | Q2 2026 | 52.63K | $27.37K | 0.00% | Hold |
| Millennium Management history | Q3 2024 | 11.23K | $24.61K | 0.00% | New |
| Renaissance Technologies history | Q2 2026 | 40.79K | $21.21K | 0.00% | Reduce |
| BNY Mellon history | Q4 2023 | 18.39K | $18.58K | 0.00% | Hold |
| Wells Fargo & Co history | Q1 2024 | 8.24K | $10.71K | 0.00% | Reduce |
| Citadel Advisors history | Q2 2026 | 13.20K | $6.86K | 0.00% | New |
| Goldman Sachs Group history | Q2 2026 | 11.56K | $6.01K | 0.00% | Reduce |
| Morgan Stanley history | Q2 2026 | 3.97K | $2.06K | 0.00% | Add |
| Fidelity Management & Research (FMR) history | Q4 2024 | 727 | $1.24K | 0.00% | New |
| UBS Group AG history | Q2 2026 | 1.38K | $719 | 0.00% | Add |
| JPMorgan Chase & Co history | Q2 2026 | 1.04K | $574 | 0.00% | New |
| Citigroup Inc history | Q1 2026 | 438 | $395 | 0.00% | Add |
| Bank of America Corp history | Q4 2025 | 26 | $34 | 0.00% | Add |
New Positions (Q2 2026)
- Citadel Advisors 13.20K sh · $6.86K
- JPMorgan Chase & Co 1.04K sh · $574
Fully Exited (vs previous quarter)
- Citigroup Inc sold 438 sh · $395
Fund Position History — shares by quarter (top 18 funds)
| Fund | Q3 2021 | Q4 2021 | Q1 2022 | Q2 2022 | Q3 2022 | Q4 2022 | Q1 2023 | Q2 2023 | Q3 2023 | Q4 2023 | Q1 2024 | Q2 2024 | Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock Inc | — | — | — | — | — | — | — | — | — | — | — | — | 608.41K | 609.92K | 608.48K | 600.41K | 601.28K | 605.13K | 608.40K | 532.54K |
| Geode Capital Management | 188.70K | 188.70K | 187.87K | 189.59K | 191.31K | 190.82K | 190.82K | 214.68K | 235.45K | 235.45K | 239.11K | 261.61K | 297.08K | 296.50K | 302.42K | 303.29K | 308.10K | 311.21K | 302.76K | 305.85K |
| Northern Trust Corp | 56.35K | 56.23K | 56.23K | 53.18K | 53.18K | 53.18K | 57.46K | 57.28K | 57.28K | 54.00K | 54.00K | 53.89K | 53.12K | 51.89K | 51.89K | 51.89K | 51.89K | 52.63K | 52.63K | 52.63K |
| Renaissance Technologies | — | — | — | — | — | — | — | 29.00K | 23.90K | 94.40K | 77.14K | 83.80K | 73.10K | 98.07K | 100.50K | 86.70K | 88.10K | 78.28K | 68.30K | 40.79K |
| Citadel Advisors | 76.45K | 34.73K | 29.64K | — | — | 10.16K | 13.84K | 28.18K | 19.59K | 47.51K | 134.16K | 36.72K | — | 12.00K | 129.75K | 22.30K | 151.30K | 75.71K | — | 13.20K |
| Goldman Sachs Group | — | — | — | — | — | — | — | 51.11K | — | — | — | — | — | — | — | — | — | — | 18.51K | 11.56K |
| Morgan Stanley | 12.36K | 12.11K | 12.31K | 11.97K | 11.97K | 11.97K | 21.97K | 22.37K | 17.89K | 99.11K | 89.36K | 89.36K | 3.94K | 3.94K | 3.94K | 3.94K | 3.94K | 3.94K | 3.94K | 3.97K |
| UBS Group AG | — | 3.58K | 3.63K | — | — | 5.18K | 933 | 895 | 678 | — | 7.76K | 85.40K | 86.61K | 806 | 5.00K | 20.41K | 7.55K | 3.00K | 1.17K | 1.38K |
| JPMorgan Chase & Co | 1.04K | 1.04K | 1.04K | 1.04K | 1.04K | 1.04K | 1.04K | 1.04K | 1.22K | 1.04K | 1.04K | 1.11K | 1.11K | 1.11K | 1.10K | 1.04K | 1.04K | 1.04K | — | 1.04K |
| Bank of America Corp | 525 | 591 | 212 | — | — | 269 | 200 | — | — | — | — | 250 | 697 | 4.23K | 243 | 284 | 25 | 26 | — | — |
| Citigroup Inc | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 438 | — |
| Charles Schwab Investment Management | — | — | — | — | 21.87K | 21.87K | 21.87K | 21.87K | 21.87K | 21.87K | 21.87K | 21.87K | 21.87K | 21.87K | 21.87K | 21.87K | 21.87K | 21.87K | — | — |
| Vanguard Group | 1.23M | 1.23M | 1.20M | 1.20M | 1.20M | 1.20M | 1.20M | 508.17K | 469.61K | 422.54K | 422.54K | 422.54K | 488.72K | 488.72K | 521.46K | 625.13K | 646.07K | 774.48K | — | — |
| Point72 Asset Management | — | 24.45K | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Fidelity Management & Research (FMR) | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | 727 | — | — | — | — | — | — |
| BNY Mellon | 18.39K | 18.39K | 18.39K | 18.39K | 18.39K | 18.39K | 18.39K | 18.39K | 18.39K | 18.39K | — | — | — | — | — | — | — | — | — | — |
| Millennium Management | 208.55K | 208.03K | 205.56K | 185.13K | 175.21K | 121.58K | 135.34K | 137.31K | 121.00K | 24.31K | 21.92K | — | 11.23K | — | — | — | — | — | — | — |
| Wells Fargo & Co | 34.67K | 24.67K | 32.17K | 35.00K | 34.49K | 34.51K | 31.70K | 31.71K | 31.72K | 19.23K | 8.24K | — | — | — | — | — | — | — | — | — |
▲ Bought Low (fund opened/added, stock rose ≥5% next quarter) ▼ Sold High (fund reduced, stock fell ≥5% next quarter)
Drag / scroll to zoom · Default shows the most recent year · Annotations come from quarterly fund actions in 13F filings · Hover a marker for details