Live research pack
Hedge Fund Filing Pack
Quarterly 13F filings show what institutional managers held at quarter end and can arrive weeks later. SignalPack makes that lag explicit, compares manager changes, and keeps the sources and investing-lens scores attached.
Source filings
Trace every result back to the filing.
Freshness and limitations
Latest filing dates: Berkshire Hathaway 2026-05-15; Pershing Square Capital Management 2026-05-15; Duquesne Family Office 2026-05-15
Report quarter/date: 2026-03-31
13F filings can lag quarter-end by up to 45 days.
Derived manager-selection view from multi-manager-2026-03-31-v0.6; no separate JSON artifact is generated for this combination.
Read-only research artifact. No execution, custody, or personalized advice.
Multi-manager rows aggregate manager-level 13F changes by ticker; individual filing records remain attached as source IDs.
CUSIP-to-ticker mapping resolved through openfigi-v3:114.
Fundamental context uses SEC Company Facts data (sec-company-facts-normalized-v2:54, sec-research-context-rubric-v1:49, 13f-implied-valuation-v1:77).
Longitudinal manager features use 11 common observed report dates from 2023-09-30; 30 listed put/call row(s) were preserved in source data but excluded from equity signals.
Delayed quarter-end 13F value/share proxies are available for 65 ticker(s), not applicable to valuation ratios for 12 unsupported security structure(s), and blocked by identity/unit gates for 0 ticker(s); they are not live or backtest prices.
All selected raw change candidates mapped to tickers.