DOSSIER · 13F Holders · Q2 2026

WOLFSPEED INC

4 institutions still hold WOLFSPEED INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 97785W906·4 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$228M
visible holders
Holders
4
filers reporting
Concentration
51.07%
GROUP ONE TRADING LLC #1
top holder share
AI Holders Summary · Q2 2026

4 institutions reported WOLFSPEED INC in Q2 2026. GROUP ONE TRADING LLC leads at 51.1% 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
$117M2.4M0.16%Q2 2026
02
IMC-Chicago, LLC
CIK 0001452861· Market maker
$86M1.8M0.02%Q2 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$21M444K0.01%Q2 2026
04
Marathon Trading Investment Management LLC
CIK 0001572748
$5M95K0.14%Q2 2026