InsiderSignalSign in
← Insider buys

BlackRock Portfolio Management LLC bought YSS once, on Jan 30, 2026

10% owner at York Space Systems, Inc.

SEC CIK 0002052113 · Filings on SEC.gov ↗

$25.6MBought
$18.4MSold
Feb 3Last buy

BlackRock Portfolio Management LLC's record

3 months after each buy, from the first price a copier could get.

1 buy has 3 months of prices so far. A record shows here at 3.

Every filing

5 filings since Feb 2026, newest first

YSSSell

York Space Systems Inc.

10% owner

$4.5M−2.4%Aug 10
YSSSell

York Space Systems Inc.

10% owner

$10.0M−3.8%Aug 6
YSSSell

York Space Systems Inc.

10% owner

$745K−0.3%Aug 4
YSSSell

York Space Systems Inc.

10% owner

$3.1M−1.1%Jul 31
YSSBuy

Yellowstone Midco Holdings Ii, LLC

10% owner

$25.6M+4.0%Feb 3
About BlackRock Portfolio Management LLC

BlackRock Portfolio Management LLC is a corporate entity affiliated with BlackRock, Inc., one of the world's largest asset managers, specializing in portfolio management and holding significant stakes in various public companies through 13G filings( As a subsidiary or division focused on investment activities, it operates within BlackRock's extensive platform, which offers fixed income, equity, balanced, cash management, and alternative investment products, managing trillions in assets under management (AUM) globally(

BlackRock Portfolio Management LLC has recently acted as a 10% owner in companies such as MediaCo Holding Inc (MDIA) with over 35 million shares, and Yellowstone Midco Holdings II, LLC (YSS), reflecting its role in substantial insider trading and ownership positions( BlackRock, founded with roots tracing back to insurance asset management and expanded since 1999, employs a disciplined investment process supported by proprietary models, risk management tools like BlackRock Solutions, and a global network of 70 offices in 30 countries, consistently ranking in the top quartiles for performance(

Written by Perplexity from public sources.

Filings come from SEC EDGAR. Not investment advice.