DOSSIER · 13F Holders · Q2 2026

ON SEMICONDUCTOR CORP

9 institutions still hold ON SEMICONDUCTOR CORP as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 682189955·9 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$4.2B
visible holders
Holders
9
filers reporting
Concentration
97.31%
Optiver Holding B.V. #1
top holder share
AI Holders Summary · Q2 2026

9 institutions reported ON SEMICONDUCTOR CORP in Q2 2026. Optiver Holding B.V. leads at 97.3% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
Optiver Holding B.V.
CIK 0001859606· Market maker
$4.1B43.5M1.11%Q2 2026
02
IMC-Chicago, LLC
CIK 0001452861· Market maker
$50M648K0.01%Q3 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$41M429K0.06%Q2 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$12M160K0.01%Q3 2026
05
JPMORGAN CHASE & CO
CIK 0000019617
$8M85K0.00%Q2 2026
06
Maven Securities LTD
CIK 0001633046
$2M23K0.04%Q2 2026
07
HRT FINANCIAL LP
CIK 0001475597
$801K15K0.00%Q4 2025
08
CMT Capital Markets Trading GmbH
CIK 0001632813
$508K8K0.01%Q1 2026
09
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025