Significant Ownership of James B. Tananbaum

Large-stake snapshot 1 signal
Large-stake filing summary
  • Recent SEC Schedule 13D/G filings for James B. Tananbaum focus on large-stake beneficial ownership disclosures and amendments.
  • Use this view to spot new large holders, amended positions, and activist-style ownership evidence.
Manager Names, identifiers, and filing context for this profile. 1 identity field
Manager location
West Hollywood, CA

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Significant Ownership of James B. Tananbaum

Sym Company Class Ownership Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
ALMS Alumis Inc. Common Stock 13% $422,163,758 -$13,341,970 15,693,820 -3.1% James B. Tananbaum 01 Apr 2026

Schedules 13D/G Reported by James B. Tananbaum:

Sym Target Class Ownership Change Current shares Change Value Reporting name Form Report period Filing date
Schedule rows are parsed from SEC 13D/G filings. Open the linked filing or target page to verify the reported ownership and shares.
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