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BlackRock Portfolio Management LLC, 10% owner at York Space Systems, sold YSS on Aug 4, 2026

Data as of Oct 16

▼ SELL$7.1M456,310 shares at $15.58BlackRock Portfolio Management LLC 10% ownerYSS York Space Systems Inc.
Watch YSS
Traded
Aug 4, 2026
Disclosed
Aug 6, 2026
Filed
2 days after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

BlackRock Portfolio Management LLC, 10% owner at York Space Systems, sold YSS on Aug 4, 2026TRADEDDISCLOSED
YSSSimilar stocks (XLI — its sector index fund), rebased to YSS's price on the disclosure day
YSS since disclosure
−48.8%
after the sale
Similar stocks (XLI) since disclosure
−9.2%
XLI — its sector index fund

Change in closing price from Aug 6, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

None of our tested rules fired on this trade.

Other trades in the same filing

  1. ▼ SELLBlackRock Portfolio Management LLC 10% ownerYSS York Space Systems Inc.$180Kdisclosed Aug 6 · filed 1 day after the trade
  2. ▼ SELLBlackRock Portfolio Management LLC 10% ownerYSS York Space Systems Inc.$1.6Mdisclosed Aug 6 · filed 1 day after the trade
  3. ▼ SELLBlackRock Portfolio Management LLC 10% ownerYSS York Space Systems Inc.$1.2Mdisclosed Aug 6 · filed 2 days after the trade

See every trade on YSS →