DOSSIER · 13F Holders · Q3 2026
EFFE

HARBOR ETF TRUST

4 institutions still hold HARBOR ETF TRUST as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 41151J737·4 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$142M
visible holders
Holders
4
filers reporting
Concentration
99.76%
STATE OF WISCONSIN INVESTMENT BOARD #1
top holder share
AI Holders Summary · Q3 2026

4 institutions reported EFFE in Q3 2026. STATE OF WISCONSIN INVESTMENT BOARD leads at 99.8% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
STATE OF WISCONSIN INVESTMENT BOARD
CIK 0000854157
$141M5.1M0.29%Q2 2026
02
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$344K13K0.00%Q3 2026
03
UBS Group AG
CIK 0001610520
$2710.00%Q3 2026
04
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025