Isoray Inc

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Isoray Inc
TickerCATX
CIK #0000728387
CUSIP46489V302
SectorLife Sciences - Surgical & Medical Instruments & Apparatus
Address350 Hills Street, Suite 106, Richland, WA 99354
Source [EDGAR]
CIK Filing 2011 - 2025
[0000728387] 10-K
[0000728387] 10-Q
[0000728387] 3
[0000728387] 4
[0000728387] 8-K
[0000728387] D
[0000728387] SC 13D
[0000728387] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Janus Henderson Group PLC Perspective Therapeutics Inc [2024-11-14] 7.1
Avidity Partners Management LP Perspective Therapeutics Inc [2024-11-14] 5.3
BlackRock Inc Perspective Therapeutics Inc [2024-11-08] 6.0
FMR LLC Perspective Therapeutics Inc [2024-11-07] 0.0
BlackRock Inc Perspective Therapeutics Inc [2024-10-24] 6.0
Commodore Capital LP Perspective Therapeutics Inc [2024-04-19] 6.6
Lantheus Holdings Inc Perspective Therapeutics Inc [2024-02-01] 819410.74
Johnson Frances Perspective Therapeutics Inc [2023-09-19] 6.3
Schultz Michael K Perspective Therapeutics Inc [2023-09-19] 6.3
Sabby Management LLC Isoray Inc [2013-09-03] 5.39
[2012-07-24] None
Form 3/4/5 Filer 2011 - 2025
Spoor Johan M.
Perspective Therapeutics, Inc.
Woods Lori A
Williamson Robert F III
Graham Juan
Hunt Jonathan Robert
Puhlmann Markus
Morich Frank
Henson Heidi
Austin Mark John
Lantheus Alpha Therapy, LLC
Lantheus Holdings, Inc.
Streeter Jennifer
McCormick Michael W
Cavanagh William
Vitale Philip J
Hoffmann Alan
Krachon Michael
Cline Krista
Lavoy Thomas C
Branson Matthew
Ragle Brien
Babcock Dwight William
Swindler Fredric
Kauffman Robert R
Form 13F Holdings
Firm Period DFND Voting Shares
FMR LLC [2025-06-30] DFND 11,097,883 11,102,770
BlackRock, Inc. [2025-06-30] SOLE 4,185,000 4,294,151
Vanguard Group Inc [2025-06-30] SOLE 0 3,230,649
Millennium Management LLC [2025-06-30] SOLE 2,593,599 2,593,599
Nuveen, LLC [2025-06-30] DFND 2,294,203 2,297,314
Avidity Partners Management LP [2025-06-30] SOLE 1,858,596 1,858,596
Morgan Stanley [2025-06-30] DFND 1,507,580 1,623,388
Nicholson Wealth Management Group LLC [2025-06-30] SOLE 0 1,614,283
Geode Capital Management LLC [2025-06-30] DFND 1,382,814 1,382,814
State Street Corp [2025-06-30] DFND 1,021,253 1,088,853
Affinity Asset Advisors LLC [2025-06-30] SOLE 1,050,000 1,050,000
Hills Bank & Trust Co [2025-06-30] SOLE 984,200 984,200
JPMorgan Chase & Co [2025-06-30] DFND 719,904 748,067
Two Sigma Investments LP [2025-06-30] SOLE 601,805 601,805
Charles Schwab Investment Management Inc [2025-06-30] SOLE 537,470 537,470
Marshall Wace LLP [2025-06-30] OTR 0 520,707
Velan Capital Investment Management LP [2025-06-30] SOLE 500,000 500,000
Two Sigma Advisers LP [2025-06-30] SOLE 473,420 495,250
Northern Trust Corp [2025-06-30] DFND 471,004 471,004
Rock Springs Capital Management LP [2025-06-30] SOLE 444,383 444,383
Wealthplan Investment Management LLC [2025-06-30] SOLE 0 401,049
UBS Group AG [2025-06-30] DFND 368,430 372,710
Bank of America Corp /DE/ [2025-06-30] DFND 7,081 327,500
Sphera Funds Management Ltd [2025-06-30] DFND 310,343 310,343
Goldman Sachs Group Inc [2025-06-30] DFND 272,043 272,098
Portland Investment Counsel Inc [2025-06-30] SOLE 250,000 250,000
BNP Paribas Financial Markets [2025-06-30] DFND 0 242,610
Hightower Advisors LLC [2025-06-30] SOLE 201,586 201,586
Federated Hermes Inc [2025-06-30] DFND 195,080 195,080
Walleye Capital LLC [2025-06-30] SOLE 187,403 187,403
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