DOSSIER · 13F Holders · Q3 2026

OPEN TEXT CORP

5 institutions still hold OPEN TEXT CORP as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 683715956·5 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$2M
visible holders
Holders
5
filers reporting
Concentration
71.61%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

5 institutions reported OPEN TEXT CORP in Q3 2026. IMC-Chicago, LLC leads at 71.6% 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
$1M50K0.00%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$235K11K0.00%Q3 2026
03
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$201K910.00%Q2 2026
04
GROUP ONE TRADING LLC
CIK 0000932540
$11K5000.00%Q3 2026
05
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025