13F Insight
DOSSIER · 13F Holders · Q1 2026

ALPHABET INC

17 institutions still hold ALPHABET INC as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 02079K955·17 13F holders·last filed Mar 31, 2026
Market cap
—
13F value held
$5.4B
visible holders
Holders
17
filers reporting
Concentration
36.40%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q1 2026

17 institutions reported ALPHABET INC in Q1 2026. IMC-Chicago, LLC leads at 36.4% 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
$2.0B6.9M0.71%Q1 202602
SIMPLEX TRADING, LLC
CIK 0001488542
$1.5B5.1M0.97%Q1 202603
Optiver Holding B.V.
CIK 0001859606· Market maker
$1.4B5.0M0.50%Q1 202604
HRT FINANCIAL LP
CIK 0001475597
$226M723K0.71%Q4 202505
JPMORGAN CHASE & CO
CIK 0000019617
$176M643K0.01%Q1 202606
GROUP ONE TRADING LLC
CIK 0000932540
$81M283K0.16%Q1 202607
Maven Securities LTD
CIK 0001633046
$45M155K0.86%Q1 202608
RH Tailwind Management, LLC
CIK 0002065331
$22M75K2.76%Q1 202609
OVERSEA-CHINESE BANKING Corp Ltd
CIK 0001291318
$3M10K0.07%Q1 202610
SG Americas Securities, LLC
CIK 0001313360
$2M544K0.00%Q1 202611
CLEAR WAVE WEALTH MANAGEMENT LLC
CIK 0002113615
$863K3K0.19%Q1 202612
CenterStar Asset Management, LLC
CIK 0001722053
$719K3K0.09%Q1 202613
Abbot Financial Management, Inc.
CIK 0001714341
$203K2K0.09%Q1 202614
All Terrain Financial Advisors, LLC
CIK 0001731358
$173K6000.04%Q1 202615
Sovereign Financial Group, Inc.
CIK 0001846175
$148K48K0.02%Q2 202616
OSAIC HOLDINGS, INC.
CIK 0001677044
$13K30.00%Q1 202617
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025