DOSSIER · 13F Holders · Q1 2026
GMMF

BLACKROCK ETF TRUST

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

CUSIP 09290C749·13 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$34M
visible holders
Holders
13
filers reporting
Concentration
73.13%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

13 institutions reported GMMF in Q1 2026. BlackRock, Inc. leads at 73.1% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$25M250K0.00%Q1 2026
02
Hummer Financial Advisory Services Inc
CIK 0001802279
$3M31K2.05%Q2 2026
03
Cambridge Investment Research Advisors, Inc.
CIK 0001419186
$2M16K0.00%Q1 2026
04
CITADEL ADVISORS LLC
CIK 0001423053
$1M11K0.00%Q4 2025
05
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$919K9K0.00%Q1 2026
06
SAPIENT CAPITAL LLC
CIK 0001998653
$775K8K0.01%Q2 2026
07
Cypress Capital, LLC
CIK 0001729939
$518K5K0.14%Q2 2026
08
NORTHCAPE WEALTH MANAGEMENT, LLC
CIK 0001902806
$432K4K0.12%Q1 2026
09
Granite Bay Wealth Management, LLC
CIK 0001911472
$398K4K0.08%Q1 2026
10
SEARLE & CO.
CIK 0000710127
$302K3K0.08%Q1 2026
11
ROYAL BANK OF CANADA
CIK 0001000275
$1K110.00%Q1 2026
12
WELLS FARGO & COMPANY/MN
CIK 0000072971
$6410.00%Q1 2026
13
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025