DOSSIER · 13F Holders · Q2 2026

LUMENTUM HLDGS INC

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

CUSIP 55024U959·9 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$1.2B
visible holders
Holders
9
filers reporting
Concentration
56.58%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

9 institutions reported LUMENTUM HLDGS INC in Q2 2026. IMC-Chicago, LLC leads at 56.6% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$671M782K0.16%Q2 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$188M219K0.11%Q2 2026
03
JPMORGAN CHASE & CO
CIK 0000019617
$89M105K0.00%Q2 2026
04
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$75M8750.05%Q2 2026
05
GROUP ONE TRADING LLC
CIK 0000932540
$67M78K0.09%Q2 2026
06
SG Americas Securities, LLC
CIK 0001313360
$50M1.3M0.05%Q1 2026
07
RH Tailwind Management, LLC
CIK 0002065331
$26M30K2.51%Q2 2026
08
Cable Car Capital, LP
CIK 0001699575
$20M23K0.42%Q2 2026
09
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025