Ticker · CUSIP 46211L101

IONR

ADR
IONEER LTD
···Share
Holders (tracked)
2
Combined shares
76,849
Combined value
$368.9K
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 2.
212025Q22025Q4

SEC event timeline

2 events
  1. Ken Griffin (Citadel Advisors) opened position2026-02-17
    +56,915 shares · 2025Q4
    Position
  2. Izzy Englander (Millennium Mgmt) opened position2026-02-17
    +19,934 shares · 2025Q4
    Position

Insider activity

No insider transactions in the last 30 days.
View full insider history for IONR →

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions2
Added to0
—
Trimmed0
—
Exited0
—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2025Q2
1
$43K
2025Q4
2
$369K

Who owns IONR

2 super-investors · 2025Q4
Tracked stake
76.8K
shares
Combined value
$369K
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2
#ManagerSharesValue
1Ken Griffin
Citadel Advisors
56.9K$273K
2Izzy Englander
Millennium Mgmt
19.9K$96K

Recent moves

2 transactions
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