Arkolith/Insider Trading/YSS/Form 4

BlackRock Portfolio Management LLC

10% OwnerYellowstone Midco Holdings II, LLC (YSS) · full profile →Form 4 · filed Feb 3, 2026
Net Buying
Open-Market Buys
$25.6M
Open-Market Sells
$0
Net Open-Market Flow
$25.6M
Transactions
1
1 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Jan 30, 2026Buy(P)753K$34.00$25.6M17.8M

Transaction Codes

P
Open-market purchase

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001193125-26-035886) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML