13F

Position

BIRCHBROOK, INC. in RTX Corp

Back to the book · All holders of RTX

Estimated mark uses implied 13F prices (value ÷ shares). Adds are treated as happening at this quarter’s mark; cuts at last quarter’s. Share jumps can be splits, not buys. This is not realized P&L.

Latest estimated mark $5.42K$183.40$192.90

QuarterSharesValueImplied pxEst. markFlowWeight
Q4 2025887$162.7K0.1%
Q1 2026571$110.1K$192.90$5.42K−$58K0.1%