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Blue Collar Picks
Big buy
$25.6M open-market purchase by BlackRock Portfolio Management LLC, 10% Owner at Yellowstone Midco Holdings Ii,llc, filed February 3, 2026. Learn more
What this is
This page shows the rows from one Form 4 filing as reported to the SEC.
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The original SEC document is the source record. Always verify before drawing conclusions.
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Insider activity carries more weight from senior officers, large dollar values, and clustered timing.
Stacked feeds
BlackRock Portfolio Management LLC · 10% Owner at Yellowstone Midco Holdings Ii,llc
BlackRock Portfolio Management LLC bought $25.6M of YSS (Yellowstone Midco Holdings Ii,llc).
Insider purchase
BlackRock Portfolio Management LLC, a 10% beneficial owner, reported a $25.6M open-market purchase equal to 1.3% of YSS's market cap.
BlackRock Portfolio Management LLC (10% Owner) bought 752,500 shares of YSS, Yellowstone Midco Holdings Ii,llc, Industrials ($1.94B market cap), at $34.00 per share on January 30, 2026 for a total of $25.6M (1.3% of the market cap).
BlackRock Portfolio Management LLC
10% Owner
Permalink https://bluecollarpicks.com/insider-trading/YSS/buy/2067515
Market context
Last enriched August 21, 2026 at 8:06 AM EDT.
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Public Form 4 filings, normalized for cleaner scanning. What do these codes mean?
| Ticker | Type & Role | Value | |
|---|---|---|---|
Sell 10% Owner | $2.3M | ||
Sell 10% Owner | $1.2M | ||
Sell 10% Owner | $970.5K | ||
Grant 10% Owner | $77.8M | ||
Grant Director | $0 | ||
Grant CEO | $0 | ||
Grant Officer | $0 | ||
Cluster Buy Director | $100K | ||
Grant Director | $0 | ||
Grant CFO | $0 | ||
Grant Director | $0 | ||
Grant Director | $0 | ||
Grant CEO | $0 | ||
Cluster Buy Director | $50K | ||
Grant Director | $0 | ||
Grant Director | $0 | ||
Grant Director | $0 | ||
Grant Officer | $0 | ||
Grant Officer | $0 | ||
| This filing | Cluster Buy 10% Owner | $25.6M | |
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Method Public Form 4 filings, normalized for cleaner scanning. Filtered rows stay available in All Form 4 Filings and ticker history. Which view should I use? →
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