DOSSIER · 13F Holders · Q3 2026

LOGITECH INTL S A

6 institutions still hold LOGITECH INTL S A as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP H50430952·6 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$32M
visible holders
Holders
6
filers reporting
Concentration
51.10%
Optiver Holding B.V. #1
top holder share
AI Holders Summary · Q3 2026

6 institutions reported LOGITECH INTL S A in Q3 2026. Optiver Holding B.V. leads at 51.1% 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
$16M173K0.00%Q2 2026
02
JPMORGAN CHASE & CO
CIK 0000019617
$13M127K0.00%Q3 2026
03
IMC-Chicago, LLC
CIK 0001452861· Market maker
$2M21K0.00%Q3 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$353K4K0.00%Q3 2026
05
GROUP ONE TRADING LLC
CIK 0000932540
$313K3K0.00%Q3 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025