Helix Acquisition Corp II

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Helix Acquisition Corp II
TickerHLXB
CIK #0001869105
CUSIPG4444H101
SectorReal Estate & Construction - Blank Checks
Addressc/o Cormorant Asset Management, LP 200 Clarendon Street, 52Nd Floor, Boston, MA 02116
Source [EDGAR]
CIK Filing 2011 - 2025
[0001869105] 10-K
[0001869105] 10-Q
[0001869105] 3
[0001869105] 4
[0001869105] 8-K
[0001869105] SC 13D
[0001869105] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Bridgebio Pharma LLC Bridgebio Oncology Therapeutics Inc [2025-08-18] 0.0
Flynn James E Bridgebio Oncology Therapeutics Inc [2025-08-18] 0.0
Sculptor Capital LP Helix Acquisition Corp II [2025-07-24] 0.0
BlackRock Portfolio Management LLC Helix Acquisition Corp II [2025-04-15] 0.0
Price T Rowe Associates Inc /MD/ Helix Acquisition Corp II [2024-11-14] 6.0
BlackRock Inc Helix Acquisition Corp II [2024-11-08] 7.9
BlackRock Inc Helix Acquisition Corp II [2024-10-22] 7.9
Citadel Advisors LLC Helix Acquisition Corp II [2024-02-23] 7.0
Adage Capital Partners GP LLC Helix Acquisition Corp II [2024-02-23] 7.4
Helix Holdings II LLC Helix Acquisition Corp II [2024-02-20] 21.4
Integrated Core Strategies US LLC Helix Acquisition Corp II [2024-02-15] 5.0
Form 3/4/5 Filer 2011 - 2025
BridgeBio Oncology Therapeutics, Inc.
Beltran Pedro
Mehra Uneek
Wallace Eli M.
Ben Yong
Kumar Neil
Bauer Jake
BridgeBio Pharma LLC
BridgeBio Pharma, Inc.
McCormick Frank
DOIG Michelle
Tipirneni Praveen P.
Chen Bihua
Obradovic Nebojsa
Kelleher Raymond J.
Schmid John P.
McKenna Mark C.
Holman Albert A III
Tripp Caleb
Helix Holdings II LLC
Form 13F Holdings
Firm Period DFND Voting Shares
Cormorant Asset Management LP [2025-06-30] DFND 2,909,000 2,909,000
BlackRock, Inc. [2025-06-30] SOLE 1,498,865 1,498,865
Citadel Advisors LLC [2025-06-30] DFND 1,427,201 1,427,201
Adage Capital Partners GP LLC [2025-06-30] SOLE 1,400,000 1,400,000
Millennium Management LLC [2025-06-30] SOLE 897,251 897,251
Sculptor Capital LP [2025-06-30] DFND 800,000 800,000
SilverArc Capital Management LLC [2025-06-30] SOLE 613,393 613,393
Farallon Capital Management LLC [2025-06-30] OTR 600,000 600,000
Harraden Circle Investments LLC [2025-06-30] SOLE 569,831 569,831
Berkley W R Corp [2025-06-30] SOLE 445,195 445,195
Toronto Dominion Bank [2025-06-30] DFND 0 444,377
Adar1 Capital Management LLC [2025-06-30] SOLE 442,615 442,615
Perceptive Advisors LLC [2025-06-30] SOLE 398,000 398,000
Decagon Asset Management LLP [2025-06-30] SOLE 348,223 348,223
Stempoint Capital LP [2025-06-30] SOLE 315,812 315,812
Laurion Capital Management LP [2025-06-30] SOLE 300,000 300,000
Shaolin Capital Management LLC [2025-06-30] SOLE 292,338 292,338
Octagon Capital Advisors LP [2025-06-30] SOLE 250,000 250,000
JPMorgan Chase & Co [2025-06-30] DFND 210,125 210,125
Clear Street LLC [2025-06-30] SOLE 205,666 205,666
Creative Planning [2025-06-30] SOLE 0 200,000
Acuta Capital Partners LLC [2025-06-30] SOLE 187,257 187,257
Wellington Management Group LLP [2025-06-30] DFND 0 184,590
TD Asset Management Inc [2025-06-30] SOLE 144,772 144,772
Hudson Bay Capital Management LP [2025-06-30] SOLE 108,300 108,300
Woodline Partners LP [2025-06-30] SOLE 103,247 103,247
K2 Principal Fund LP [2025-06-30] SOLE 100,000 100,000
Moore Capital Management LP [2025-06-30] SOLE 100,000 100,000
UBS Group AG [2025-06-30] DFND 68,534 68,534
Great Point Partners LLC [2025-06-30] SOLE 0 29,381
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