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Isoray Inc

CUSIP: 46489V104 | 207 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
CompareDetailedHistoricalFundsOptions13D/13GPeersTargetingTrading SummaryProfile

Beneficial Ownership — 13D / 13G

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5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13G/AFarallon Capital Management, L.L.C.
with Farallon Capital Partners, L.P., Farallon Capital Institutional Partners, L.P., Farallon Capital Institutional Partners II, L.P., +10 more
5,583,4798.6%New 5%+ stakeJun 30, 2026No 13F filer matched
13G/AFarallon Capital Management, L.L.C.5,583,479
8.6% of class · Jun 30, 2026New 5%+ stake
with Farallon Capital Partners, L.P., Farallon Capital Institutional Partners, L.P., Farallon Capital Institutional Partners II, L.P., +10 more
No 13F filer matched

Institutional Holders — Q3 2026

Vestor Capital, LLC1,646
0.0% of portfolio›$640
StyleTurnoverLocationFiled
Vestor Capital, LLC
1,646$6400.0%ValueMediumChicago, IL2026-11-04