DOSSIER · 13F Holders · Q1 2026

RAIL

6 institutions still hold RAIL as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP M8186D114·6 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$5K
visible holders
Holders
6
filers reporting
Concentration
44.33%
Cambridge Investment Research Advisors, Inc. #1
top holder share
AI Holders Summary · Q1 2026

6 institutions reported RAIL in Q1 2026. Cambridge Investment Research Advisors, Inc. leads at 44.3% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Cambridge Investment Research Advisors, Inc.
CIK 0001419186
$2K58K0.00%Q1 2026
02
Clear Street Group Inc.
CIK 0001881567
$1K51K0.00%Q2 2026
03
GTS SECURITIES LLC
CIK 0001452765· Market maker
$74430K0.00%Q2 2026
04
TWO SIGMA SECURITIES, LLC
CIK 0001450144· Market maker
$40616K0.00%Q2 2026
05
UBS Group AG
CIK 0001610520
$572K0.00%Q2 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025