DOSSIER · 13F Holders · Q2 2026

WORKDAY INC

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

CUSIP 98138H901·9 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$208M
visible holders
Holders
9
filers reporting
Concentration
40.10%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

9 institutions reported WORKDAY INC in Q2 2026. IMC-Chicago, LLC leads at 40.1% 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
$83M682K0.02%Q2 2026
02
Optiver Holding B.V.
CIK 0001859606· Market maker
$70M569K0.02%Q2 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$17M143K0.01%Q2 2026
04
JPMORGAN CHASE & CO
CIK 0000019617
$16M128K0.00%Q2 2026
05
Maven Securities LTD
CIK 0001633046
$15M125K0.30%Q2 2026
06
GROUP ONE TRADING LLC
CIK 0000932540
$3M28K0.00%Q2 2026
07
FARLEY CAPITAL L.P.
CIK 0001479465
$2M15K1.45%Q2 2026
08
SG Americas Securities, LLC
CIK 0001313360
$1M45K0.00%Q1 2026
09
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025