13F

Stock

Research Frontiers Inc

REFR · held by 35 managers

Reported value

$3.48M

Holders

35

+6 new · −8 exited

Holders’ est. mark

−$1.19M

Price effect on 26 books still in the name

Largest holder

$828.2K

MGO ONE SEVEN LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
MGO ONE SEVEN LLC918.2K$828.2K−$374.6KCut−$374.6K
BlackRock, Inc.608.4K$559.7K−$236KCut−$233K
VANGUARD CAPITAL MANAGEMENT LLC568.2K$512.5KHeld
Focus Partners Wealth496.4K$456.7K−$193.6KCut−$193.6K
GEODE CAPITAL MANAGEMENT, LLC302.8K$273.2K−$123.6KCut−$134.6K
VANGUARD FIDUCIARY TRUST CO177K$159.7KHeld
SUSQUEHANNA INTERNATIONAL GROUP, LLP156.8K$141.4K−$50.2KCut−$19.7K
State Street105.6K$95.3K−$43.1KCut−$43.1K
SHUFRO ROSE & CO LLC97.5K$89.7K−$38KCut−$38K
Renaissance Technologies68.3K$62.8K−$26.6KCut−$39.7K
NORTHERN TRUST CORP52.6K$48.4K−$20.5KCut−$20.5K
Kingsview Wealth Management, LLC45K$41.4K−$17.5KCut−$93.7K
XTX Topco Ltd33K$29.7K−$8.59KAdded$2.15K
FreeGulliver LLC20K$18K−$8.16KCut−$8.16K
HM PAYSON & CO20K$18K−$8.16KCut−$8.16K
GOLDMAN SACHS GROUP INC18.5K$17KNew
RAYMOND JAMES FINANCIAL INC17.9K$16.4K−$6.97KCut−$39.8K
TWO SIGMA SECURITIES, LLC15.8K$14.5K−$6.17KCut−$15.4K
MERCER GLOBAL ADVISORS INC /ADV14K$12.9K−$5.46KCut−$5.46K
Focus Partners Advisor Solutions, LLC14.1K$12.8KNew
Schonfeld Strategic Advisors LLC13.9K$12.7K−$5.4KCut−$5.38K
JANE STREET GROUP, LLC11.6K$10.6K−$4.51KCut−$9.12K
Vanguard Global Advisers, LLC11.1K$10KHeld
Farrell Financial LLC10.5K$9.43KNew
HB Wealth Management, LLC10K$9.02K−$4.08KCut−$4.08K
Tower Research Capital LLC (TRC)6.05K$5.57K−$806Added$2.86K
OSAIC HOLDINGS, INC.4K$3.68K−$1.56KCut−$1.56K
MORGAN STANLEY3.94K$3.62K−$1.54KCut−$1.53K
MAI Capital Management1.5K$1.35KNew
UBS Group AG1.17K$1.08K−$458Cut−$2.85K
JPMORGAN CHASE & CO1.04K$948−$417Cut−$417
CITIGROUP INC438$395−$0Added$394
SIMPLEX TRADING, LLC332$305New
Fairman Group, LLC125$113−$51Cut−$51
SBI Securities Co., Ltd.5$5New

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.