Ticker · CUSIP 464214105

ISBA

ISABELLA BK CORP
···Share
Holders (tracked)
3
Combined shares
24,829
Combined value
$1.24M
Last close
$45.75
Quarter
2025Q4
Price · 1Y$45.75+21.94 (+92.12%)H $56.22 · L $23.81 · Avg Vol 18K
Position opened
$30.00$40.00$50.00VolJul 25Oct 25Jan 26Apr 26
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 2.
312025Q32025Q4
Price is -8.5% vs the avg quarter-end implied price across tracked holders.

SEC event timeline

3 events
  1. Ken Griffin (Citadel Advisors) trimmed2026-02-17
    −12,108 shares · 2025Q4
    Position
  2. Izzy Englander (Millennium Mgmt) opened position2026-02-17
    +13,105 shares · 2025Q4
    Position
  3. Steve Cohen (Point72) opened position2026-02-17
    +5,967 shares · 2025Q4
    Position

Insider activity

No insider transactions in the last 30 days.
View full insider history for ISBA →
Follow-the-investor returns
If you'd copied each holder of ISBA…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
InvestorFirst inCost basisReturnPosition value today
Ken Griffin (Citadel Advisors)2025Q3$35.25+29.8%$263K
Izzy Englander (Millennium Mgmt)2025Q4$50.00-8.5%$600K
Steve Cohen (Point72)2025Q4$50.00-8.5%$273K

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions2
Added to0
—
Trimmed1
Exited0
—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2025Q3
1
$630K
2025Q4
3
$1.2M

Who owns ISBA

3 super-investors · 2025Q4
Tracked stake
24.8K
shares
Combined value
$1M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New2Trim1
#ManagerSharesValue
1Izzy Englander
Millennium Mgmt
13.1K$655K
2Steve Cohen
Point72
6.0K$298K
3Ken Griffin
Citadel Advisors
5.8K$288K

Recent moves

3 transactions
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