DOSSIER · 13F Holders · Q1 2026High-convictionMulti-bagger
OAKI

HARRIS OAKMARK ETF TRUST

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

CUSIP 41456U205·6 13F holders·last filed Mar 31, 2026
Market cap
7.7%
vs prior quarter
13F value held
$63M
65.0% inst. owned
of float
Holders
6
+46 QoQ
filers reporting
Activity
+8 / −104
+855 added · −808 reduced
this quarter
Concentration
82.04%
Natixis Investment Managers, LLC #1
top holder share
AI Holders Summary · Q1 2026

6 institutions reported OAKI in Q1 2026. Natixis Investment Managers, LLC leads at 82.0% of the visible book. +46 net new institutions vs prior quarter — accumulation reading.

Top holders

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

#HolderValueShares% port.Quarter
01
Natixis Investment Managers, LLC
CIK 0001053187
$52M1.9M67.15%Q1 2026
02
Appalachian Capital Management Ltd
CIK 0002111450
$8M338K6.51%Q1 2026
03
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$1M53K0.00%Q1 2026
04
CITADEL ADVISORS LLC
CIK 0001423053
$1M40K0.00%Q4 2025
05
Resonant Capital Advisors, LLC
CIK 0001803236
$620,70420K0.03%Q1 2026
06
HighTower Advisors, LLC
CIK 0001462245
$229,35010K0.00%Q1 2026