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Data sources

Public disclosures only. Scores flag unusual patterns and are not evidence of wrongdoing. Not investment advice.

RH CHAIN…
OverviewDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenMethodologyMatch reviewLaunch readiness
01Overview02Daily Brief03Live04Congress05Corporate Insiders06Government Money07Political Influence08Institutions09Washington Network10Follow the Power11Disclosure Clock12AI Investigator13Watchlist
ConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenMethodologyMatch reviewLaunch readiness
OverviewDaily BriefLiveCongressCorporate InsidersGovernment MoneyPolitical InfluenceInstitutionsWashington NetworkFollow the PowerDisclosure ClockAI InvestigatorWatchlistConvergenceINSIDER AlphaSignal ledgerHistorical ReplayRobinhood ChainProofTradingTokenMethodologyMatch reviewLaunch readiness
Data sources
SEC FORM 44h ago
HOUSE PTR4h ago
SEC 13F4h ago
ROBINHOOD CHAIN4h ago
SEC FORM 4/Open-market saleVerified data

BlackRock Portfolio Management LLC sold YSS

10% Owner · York Space Systems Inc. · Common Stock

Side
SELL
Value
$2.20M
Shares
200.2K
Price
$10.99
Executed
Aug 7, 2026
Disclosed
Aug 10, 2026
Disclosure timeline3 days from execution to publication · legal deadline 2 business days
Aug 7 executedAug 10, 2026 disclosed

YSS · daily

Yahoo Finance chart API
▲Execution▼Disclosure●Material company filing●Other disclosed buy●Other disclosed sellUnofficial public endpoint; daily OHLCV, split-adjusted. Replace with a licensed feed for production.

Insider Score

Experimental signal
26/ 100 · ROUTINE
Methodology →
  • Transaction type+12 / 20

    Open-market sale

  • Relative size+10 / 25

    $2.2M reported value · 1.2% of prior position

  • Filing timing0 / 15

    Disclosed 1 business day after execution (deadline: 2)

  • Historical behavior+4 / 15

    1 prior trade recorded in this security

  • Frequency & clustering0 / 15

    No clustered activity in the dataset

  • Market events0 / 10

    No material company filing within 60 days after the trade

    • The Insider Score measures how far a disclosure deviates from normal filing patterns. A high score is a prompt for research, not evidence of illegal insider trading.

    Other disclosed activity · YSS

    ScoreActorSecuritySideValueExecutedDisclosedLagSourceEvidence
    30
    BM
    BlackRock Portfolio Management LLC10% Owner
    YSSYork Space Systems Inc.
    Open-market sale
    		SELL$2.34M
    201.5K sh
    		Aug 6, 2026Aug 10, 2026
    traded Aug 6, 2026
    		+4dSEC FORM 4

    Evidence

    Evidence

    Verified data

    Read directly from the primary public document; every field below is as reported by the filer.

    Source

    Document
    SEC Form 4
    Publisher
    U.S. Securities and Exchange Commission (EDGAR)
    Document ID
    0002052113-26-000811
    Machine-readable
    Structured copy

    Timestamps

    Event (reported)
    Aug 7, 2026
    Published
    Aug 10, 2026
    Ingested by INSIDER
    Nov 5, 02:24 UTC
    Last re-read
    Nov 5, 02:24 UTC

    Extracted facts

    Filer
    BlackRock Portfolio Management LLC
    Role
    10% Owner
    Transaction
    Open-market saleAs filed: “S”
    Asset
    York Space Systems Inc.
    Ticker
    YSS
    Shares
    200.2K
    Price per share
    $10.99
    Value
    $2,199,868
    Execution date (reported)
    Aug 7, 2026
    Owned after transaction
    16.52M shares
    Days from execution to publication
    3

    Calculation

    Value = shares × reported price per share

    • Shares: 200.2K
    • Price: $10.99

    = $2,199,868

    What this establishes

    BlackRock Portfolio Management LLC filed this Form 4 reporting a open-market sale of YSS on Aug 7, 2026. It became public on Aug 10, 2026. The filing establishes the reported transaction and the filer's stated role. It does not establish why the trade was made or what the filer knew.

    Extraction

    Method
    Form 4 XML
    Confidence
    1.00
    10% Owner
    BlackRock Portfolio Management LLCcik:0002052113
    Issuer
    York Space Systems Inc.cik:0002086587

    Revision history · 0

    No field has changed since this record was first ingested.

    Company events

    No records

    No material filings recorded for this issuer.