DOSSIER · 13F Holders · Q3 2026

LUMENTUM HLDGS INC

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

CUSIP 55024U959·9 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$2.0B
visible holders
Holders
9
filers reporting
Concentration
65.22%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

9 institutions reported LUMENTUM HLDGS INC in Q3 2026. IMC-Chicago, LLC leads at 65.2% 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
$1.3B1.3M0.27%Q3 2026
02
JPMORGAN CHASE & CO
CIK 0000019617
$201M206K0.01%Q3 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$145M149K0.20%Q3 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$143M147K0.08%Q3 2026
05
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$75M8750.05%Q2 2026
06
RH Tailwind Management, LLC
CIK 0002065331
$53M55K3.58%Q3 2026
07
SG Americas Securities, LLC
CIK 0001313360
$50M1.3M0.05%Q1 2026
08
Cable Car Capital, LP
CIK 0001699575
$20M23K0.42%Q2 2026
09
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025