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.

Latest available quarter 2026-06-30Filings received through 2026-08-146 source filings3 available managersExecution disabled

Research leadsAMZN selected · 6 positionsAll positions

GOOGL
ALPHABET INC-CL A
Added shares
Berkshire, Pershing Square, Duquesne
Quality 5/6 known
Candidate
DAL
DELTA AIR LINES INC
Added shares
Berkshire, Duquesne
Quality 3/4 known · 2 missing
Candidate
AMZN
AMAZON.COM INC
Added shares
Pershing Square, Duquesne
Quality 5/5 known · 1 missing
Candidate
DHI
DR HORTON INC
New position
Berkshire, Duquesne
Quality 4/4 known · 2 missing
Candidate
GOOG
ALPHABET INC-CL C
Added shares
Berkshire, Pershing Square
Quality 5/6 known
Candidate
QSR
RESTAURANT BRANDS INTERN
Reduced shares
Pershing Square, Duquesne
Quality 3/6 known
Review

Selected research lead

AMZN

AMAZON.COM INC

Added shares

This combined view is classified as added shares across Pershing Square, Duquesne. Individual manager moves can differ. The position represents 0.8% of reported portfolio in the selected-manager view. 4 source filings are attached for review.

Investing lenses

Value1/3 known · 4 missing · pending evidence

Needs revenue or market cap, dividend history, P/E or P/B, margin of safety before this lens can conclude.

Quality5/5 known · 1 missing · pass

ROIC supports a quality-business thesis

Growth1/2 known · 3 missing · pending evidence

Needs source-backed innovation-platform mapping, platform score, network effect or convergence score before this lens can conclude.

Source filings

Pershing Square · 2026-03-31 Pershing Square · 2025-12-31 Duquesne · 2026-06-30 Duquesne · 2026-03-31

Point-in-time evidence

Why AMZN scored this way

Holdings reflect Jun 30, 2026; supporting evidence is limited to information available by Aug 14, 2026. Filing-derived prices are delayed proxies, not market quotes.

Valuation withheld

Manager behavior

37.34/76

Manager-behavior conviction

Reinforced buying

79.05th percentile average move magnitude · 92.06th percentile average position strength

13f-conviction-v1 keeps filing behavior separate from company fundamentals.

Pershing Square

Added shares · 17.39% reported weight

Building

Position 2 of 11+19.19% shares62.5th percentile move2-quarter positive streak

Duquesne

Added shares · 2.48% reported weight

Added

Position 6 of 86+1,082.53% shares95.6th percentile move1-quarter positive streak

Business quality

Point-in-time operating-company metrics derived from official SEC Company Facts.

Annual revenue: $716.9B; SEC Company Facts · Available; Derived with sec-company-facts-derived-v2.
5-year revenue CAGR: 13.18%; SEC Company Facts · Available; Derived with sec-company-facts-derived-v2.
Operating margin: 11.16%; SEC Company Facts · Available; Derived with sec-company-facts-derived-v2.
Free-cash-flow margin: 7.7%; SEC Company Facts · Available; Derived with sec-company-facts-derived-v2.
Return on invested capital: 16.35%; SEC Company Facts · Available; Derived with sec-company-facts-derived-v2.
Net long-term debt / equity: 0.1×; SEC Company Facts · Available; Derived with sec-company-facts-derived-v2.

Delayed valuation

Quarter-end 13F value/share evidence combined with lagged SEC per-share fundamentals.

Implied quarter-end price: Withheld; Quality gate · Quality gate failed; The delayed 13F valuation proxy failed identity or unit quality gates: mixed-report-dates, cross-manager-price-conflict.
Filing-precision range: Withheld; 13F-derived · Quality gate failed; Identity or unit quality gates blocked this proxy.
Delayed P/E: Withheld; Quality gate · Quality gate failed; The delayed 13F valuation proxy failed identity or unit quality gates: mixed-report-dates, cross-manager-price-conflict.
Delayed P/B: Withheld; Quality gate · Quality gate failed; The delayed 13F valuation proxy failed identity or unit quality gates: mixed-report-dates, cross-manager-price-conflict.
Graham value proxy: Withheld; Quality gate · Quality gate failed; The delayed 13F valuation proxy failed identity or unit quality gates: mixed-report-dates, cross-manager-price-conflict.
Margin of safety: Withheld; Quality gate · Quality gate failed; The delayed 13F valuation proxy failed identity or unit quality gates: mixed-report-dates, cross-manager-price-conflict.

Availability and quality

Valuation withheld

6/12 displayed metrics are available; 6 unavailable or withheld.

AMZN observations span multiple report dates: 2026-03-31, 2026-06-30.

AMZN manager-implied prices differ by 14.4376% after filing-precision bounds.

Lineage

4 SEC filing record(s) support the selected manager change set.

18 displayed or supporting fields trace to immutable SEC Company Facts data; unsupported qualitative and market claims are intentionally excluded from this panel.

2 current-position 13F observation(s) support the delayed Jun 30, 2026 price proxy, available after filings through Aug 14, 2026.

Daily adjusted prices, returns, volatility, liquidity, and benchmark comparisons arrive in Checkpoint 3; none are inferred from this delayed filing proxy.