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REFR RESEARCH FRONTIERS INC

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COM (common), issuer CIK 793524

32 managers (35 13F filers) reported a position in REFR shares at 2026-03-31, 3,825,595 shares in all. 6 filers opened a position and 8 filers sold out during the quarter.

Managers
32
13F filers
35
New
6
Added
6
Reduced
7
Sold out
8
Shares held by filers
3,825,595

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
MGO ONE SEVEN LLC918,182$828K0.02%013F-HRTimeline
VANGUARD GROUP INCgroup of 3 filers holding756,292$682KnewTimeline
BlackRock, Inc.in group BlackRock, Inc.608,398$560K<0.01%+3,27213F-HRTimelineGroup
Focus Partners Wealthgroup of 2 filers holding510,513$470K+14,091Timeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC302,761$273K<0.01%-8,45013F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…156,786$141K<0.01%+33,78413F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP105,623$95.3K<0.01%013F-HRTimelineGroup
SHUFRO ROSE & CO LLC97,500$89.7K0.01%013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC68,300$62.8K<0.01%-9,98213F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP52,630$48.4K<0.01%013F-HRTimelineGroup
Kingsview Wealth Management, LLC44,950$41.4K<0.01%-58,11013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd32,970$29.7K<0.01%+11,91313F-HRTimelineGroup
HM PAYSON & CO20,000$18K<0.01%013F-HRTimeline
FreeGulliver LLC20,000$18K0.01%013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC18,506$17K<0.01%new13F-HRTimelineGroup
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC17,880$16.4K<0.01%-25,05213F-HRTimelineGroup
TWO SIGMA SECURITIES, LLC15,809$14.5K<0.01%-7,06513F-HRTimeline
MERCER GLOBAL ADVISORS INC /ADV14,000$12.9K<0.01%013F-HRTimeline
Schonfeld Strategic Advisors LLC13,857$12.7K<0.01%+2113F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC11,575$10.6K<0.01%-3,51613F-HRTimelineGroup
Farrell Financial LLC10,457$9.43K0.01%new13F-HRTimeline
HB Wealth Management, LLC10,000$9.02K<0.01%013F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…6,055$5.57K<0.01%+3,98613F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.4,000$3.68K<0.01%013F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY3,935$3.62K<0.01%013F-HRTimelineGroup
MAI Capital Management1,500$1.35K<0.01%new13F-HRTimeline
UBS Group AGin group UBS Group AG1,174$1.08K<0.01%-1,82813F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO1,042$948<0.01%013F-HR/ATimelineGroup
CITIGROUP INCin group CITIGROUP INC438$395<0.01%+43713F-HRTimelineGroup
SIMPLEX TRADING, LLC332$305<0.01%new13F-HRTimeline
Fairman Group, LLC125$113<0.01%013F-HRTimeline
SBI Securities Co., Ltd.5$5<0.01%new13F-HRTimeline