Comparable stake leader
Morgan Stephen L.
SEC ownership of RESEARCH FRONTIERS INC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000793524.
Disclosed value leader
Morgan Stephen L.
Comparable rows
36/42
Latest evidence
31 Mar 2026
- Public ticker
- REFR on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Morgan Stephen L.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
36 of 42
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Morgan Stephen L.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000793524
- Issuer location
- Woodbury, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of RESEARCH FRONTIERS INC (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Morgan Stephen L.
Disclosed value leader
Morgan Stephen L.
Comparable rows
36/42
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 6.9%
6 rows are not safely comparable across share classes.
13D/G row: Morgan Stephen L.
Showing 1-8 of 42 holder rows.
Quick read
Morgan Stephen L. leads the comparable SEC ownership view at 6.9%.
36 of 42 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Morgan Stephen L.'s linked filing trail.
Comparable ownership
Top 5
Morgan Stephen L.
6.9%
MGO ONE SEVEN LLC
2.7%
BlackRock, Inc.
1.8%
VANGUARD CAPITAL MANAGEMENT LLC
1.7%
Focus Partners Wealth
1.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 42 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Morgan Stephen L. |
13D/G
|
6.9%
|
$3,097,158
2,328,690 shares
|
$0 | 30 Sep 2025 |
| MGO ONE SEVEN LLC |
13F
Company
|
2.7%
|
$828,200
918,182 shares
|
— | 31 Mar 2026 |
| BlackRock, Inc. |
13F
Company
|
1.8%
|
$559,727
608,398 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
Company
|
1.7%
|
$512,475
568,154 shares
|
— | 31 Mar 2026 |
| Focus Partners Wealth |
13F
Company
|
1.5%
|
$456,708
496,422 shares
|
— | 31 Mar 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
0.9%
|
$273,168
302,761 shares
|
— | 31 Mar 2026 |
| VANGUARD FIDUCIARY TRUST CO |
13F
Company
|
0.52%
|
$159,681
177,030 shares
|
— | 31 Mar 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP |
13F
Company
|
0.46%
|
$141,421
156,786 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 04 Aug 2025.
Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-6 of 6 reporting-owner rows connected to RESEARCH FRONTIERS INC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
6
Largest Forms 3/4/5 holder
William Graham Settle
Net 12M change
$0
Latest report
31 Dec 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| William Graham Settle | Director | Mixed | 31 Dec 2021 | |||
| Eyal Peso | Director | Mixed | 31 Dec 2024 | |||
| Darryl Daigle | Director | Mixed | 31 Dec 2025 | |||
| Joseph M. Harary | President and CEO, Director | Mixed | 31 Dec 2025 | |||
| Michael R. LaPointe | VP-Marketing | Mixed | 31 Dec 2024 | |||
| Alexander Kaganowicz | Director | Mixed | 31 Dec 2025 |
Recent insider transactions for RESEARCH FRONTIERS INC
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Darryl Daigle | REFR | Stock Option (right to buy) | Award | 14.2% | 45,000 | 361,000 | 31 Dec 2025 | Direct | ||
| Joseph M. Harary | REFR | Stock Option (right to buy) | Award | 22.4% | 65,000 | 355,000 | 31 Dec 2025 | Direct | ||
| Alexander Kaganowicz | REFR | Stock Option (right to buy) | Award | 14.2% | 45,000 | 361,000 | 31 Dec 2025 | Direct |
* marks a reported price that did not pass the local price check.