DOSSIER · 13F Holders · Q3 2026

BENCHMARK ELECTRS INC

3 institutions still hold BENCHMARK ELECTRS INC as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 08160H901·3 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$66K
visible holders
Holders
3
filers reporting
Concentration
62.50%
GROUP ONE TRADING LLC #1
top holder share
AI Holders Summary · Q3 2026

3 institutions reported BENCHMARK ELECTRS INC in Q3 2026. GROUP ONE TRADING LLC leads at 62.5% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
GROUP ONE TRADING LLC
CIK 0000932540
$41K5000.00%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$25K3000.00%Q3 2026
03
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025